September 22, 2015: Good
Morning Mark....That was a
great story on off-shore broadcasting, I enjoyed reading
it. That looks even tougher than trying to maintain a
station in the middle of the prairie, miles from the nearest
repair shop or parts distributor! Maynard Meyer,
KLQP Radio, Madison, Minnesota.
September 18, 2015: Your
Dad's Book. Great read for anyone in the broadcasting
business especially those on the technical side. Some great
stories of a true pioneer, self-taught. Some are funny,
some are of adversity, but it's clear Charlie Persons loved
broadcasting and the people in it. I only wish I had the
chance to have met him. Hal Kneller, Punta Gorda,
September 8, 2015: Hi
Paula, received the package today in excellent condition.
Thanks for the prompt & efficient service. Blessings,
September 4, 2015: THANK
YOU Sir, for the
article on Radio Caroline, in Radio World Magazine. I
was stationed in Bamberg Germany in the U.S. Army in the
1960s at a missile site. Anyhow, Yea, a LOT of GI's
listened to that signal, more than the Armed Forces
Network! Again, THANKS. Retired broadcaster Fred
Shetler, Port Royal, Pennsylvania.
September 4, 2015: Hi
Mark. The CRL SEC-800 sounds great, thanks for the repair.
Charlie's book, very interesting information, your dad
was a pioneer.... Philip Davies, Tucson, Arizona.
September 3, 2015: Hi
Paula; The part arrived yesterday. As always, Mark's
workmanship is superb. Thanks again! Chuck Gennaro,
WFHR Radio, Wisconsin Rapids, Wisconsin.
August 24, 2015: Mark, I
finally got around to reading your
dad's book while on a plane flight. Quite and
interesting story. Larry Fuss, Delta Radio Network,
August 24, 2015: Hi Mark,
Thank you so much for the expert repair on the CRL SEC-800
Audio Processor. Philip Davies, Tucson, Arizona.
August 5, 2015: Dear Mr.
Persons: Just a note to tell you I received the Eimac HR-6
today. I appreciate all the help you have given me in
learning about AM and FM broadcast engineering. Kent
Verbeck, Minden, Nebraska.
July 2, 2015: Dear Paula,
Thank you so much for all the help.
I hope you and Mark have a wonderful 4th of July holiday.
Fred Damron, WFGH Radio in Fort Gay, West Virginia.
June 29, 2015: Hi Mark,
Just wanted to let you know that I received the diagrams and
charts you sent. Thank you so much for the assistance!
Appreciate what you do for us all. Sincerely, Gary
Jackson at KTQM Radio in Clovis, New Mexico.
June 4, 2015:
Paula and Mark, I wanted to let you know that the
time delay relay arrived on time and more importantly got
everything up and running again. Thank you very much for
Ben Ecker in Rochester, New York.
May 29, 2015:
I am very happy with the CRL 400 I bought from you. Thanks.
Thelma Howard, Detroit, Michigan.
April 27, 2015:
I received my shipment of gear this last Friday from MW
Persons. It arrived in good condition and was installed
yesterday afternoon. It's working perfectly and quickly solved
our problem. I wanted to write you and thank you for the quick
service and for selling me old style gear that works great!
Best wishes for you and your business.
Dan Yeager, Jefferson City, Missouri
March 12, 2015:
Your dad was
quite a guy. I thoroughly enjoyed
his book and my brother is reading it right now in Austin,
Texas. In fact, he must have just read the part your dad wrote
about the old gag trick announcers would play on the engineers –
moving their lips but purposely making no sound. Ron pulled
that one on me last night during an evening video chat. Once he
broke into a laugh I realized my computer and speakers were
working fine. Doctor Rick Waters, Athens, Georgia.
February 17, 2015: Mark:
I read your piece on
transmitting power tubes. Nice work! Right up your alley.
Jim Barry in Destin, Florida.
February 17, 2015, from
I continue to enjoy your
article in Radio World. I never realized that tubes were
evacuated upside down to get some gravity assist in the
process. Is that true, or were you just pulling our legs? The
article about the stereo 19kHz pilot getting broadcast on an AM
transmitter brought back memories of long ago before I went
overseas with VOA in '89. I discovered that happening on one of
my contract stations while they were taking an off-air FM sports
network feed using a cheap run-of-the-mill audiophile FM
receiver. As I recall, it put a very noticeable 1 kHz beat note
on the second adjacent stations' signals. Charles Lewis,
KY4P, West Jefferson, North Carolina. Tube question
answer: Evacuating tubes in an inverted position is true and is
the best way to do it. Mark.
February 14, 2015: Mark, You
did a spectacular job. The Gates Executive audio console is
amazing...it is perfect. Thank you so much! Dr. Rick
February 13, 2015:
Hi Mark, Just wanted to say I checked
article in the Radio World magazine this month (Feb 1st,
2015). Good Stuff my friend! Never knew what the inside of a
ceramic tube looked like before this. And then there's
the electron theory of operation inside between the filament and
plate. On Behalf of all of us RF numb skulls everywhere;
Andy Bursaw, WKLK Radio, Cloquet, Minnesota.
February 12, 2015: Great
article in Radio World on tubes, Mark. I've never seen the
inside of a tube! Also, good info on the naming scheme.
Thanks. Dan Houg, Station Engineer KAXE Grand Rapids,
Minnesota, and KBXE Radio Bemidji, Minnesota.
February 8, 2014: Just got my February 1st
issue of Radio World yesterday.
Good story by the way, looks like some work to break the
tube apart. Dave Cox, Brainerd, MN.
February 5, 2015:
your article and it now hangs in an honored place on my
office wall. Best, Charles S. Fitch, P.E., Avon,
February 4, 2015:
Thank you for the most excellent
Radio World tech tips article. Interesting, informative to
the extreme, and of personal interest to me. After retiring
from government work, I became chief engineer at KVMR in Nevada
city and KMYC in Marysville California. Now retired in
Florida. Again, thanks for showing the tube innards.
Jerry Snaper, KG6FDM, Plant City, Florida.
February 4, 2015: I thoroughly enjoyed reading your
dad's book. Sure can tell he was your dad - you are
definitely a "chip off the old block." Some of the humor was
especially telling. ;) I passed on my copy to our general
manager. He is an old school radio guy to the nth degree and
will be retiring this year. I also thought of him while reading
the books and I know he will enjoy them. Steve Brown,
WHBY Radio/Woodward Communications, Appleton, Wisconsin.
February 2, 2015: Dear Mr. Persons:
article on the 4CX5000A tube, published in Radio World this
This is the type of educational articles I'd like to see
published more often in Radio World. Keep writing them. I want
to tell you that I appreciate your time to disassemble and
photograph the 4CX5000A tube. Never saw what one looked like
inside. Thanks for your time to write the article in Radio
World. Sincerely, Kent Verbeck.
January 30, 2015: I just
February 2015 Radio World publication. Page 18 & 19 "about the
ins and outs of transmitter tubes" by Mark Persons, W0MH.
Great article with the history of, and photos showing the Eimac
4CX series tubes (4CX5000A) with cutaways and disassembled
tubes. The Tube Collector organization is very alive with
hundreds of collectors/members. I'm sure they will enjoy your
article. They have a monthly collector magazine covering
everything tube. They are a good bunch. 73, John Dilks,
www.k2tqn.com/ Former Editor Vintage Radio Column,
January 30, 2015: Thanks for
great article. I passed it along to a student IT employee
who has shown some interest in transmitters and all other things
Yours in service, 73 DE
Claasen, Senior Broadcast Engineer, Arizona
January 30, 2015: Hi Mark: I
article on high-power tubes. I particularly enjoyed the
photos showing the “innards” of a 4CX5000. Although I’ve worked
on transmitters, used ceramic tubes were always sent back for
rebuild so I’ve never actually seen inside one. Thanks! Bob
January 21, 2015: Hello Mark
and Paula: Happy new year to you. Just to tell you that I've
received the microphone amplifier transformers. Thank you so
much! Best regards, Christophe Van Huffel in France.
January 14, 2015:
Hi Mark, I
your father's book to be very interesting. Small market
radio is sure a different animal compared to the medium and
large markets. How many people can conceive of having their
mother with a talk show (my mother was an interviewer), a father
who was involved in all aspects of the community (my dad was on
just about every committee in town). The book was very
interesting to me. Thanks again, Woody Woodward, General
Manager KSUM AM KFMC FM Radio in Fairmont, Minnesota.
January 8, 2015: Looking
watching you on This Week In Radio Tech (TWiRT) tonight.
It's always interesting to hear discussions about the radio
engineering industry and learn new things. You have a wealth of
knowledge and should be commended for sharing that wealth.
Jim Offerdahl in Fosston, Minnesota.
December 27, 2014: Hi Mark:
Your website is really informative with all the repair stories
on it - fab work. Regards, John Marren in Ireland.
December 17, 2014: Mark:
Didn't take long and Alex got the control board back up and
running. Thanks for all your help.
Dustin Moore WZFG Fargo/KTGO Tioga, North Dakota.
December 17, 2014: Hi Mark,
I've been enjoying your website for some time now, and
especially enjoy your technical tips.
Best Regards and Thank You, Karl Habeck,
December 9, 2014: Hi,
Paula, Just wanted to let you all know that the repaired
transmitter modules arrived safely here in Tennessee. Also,
thank you so much for
the book! I have already started reading it. We have a very
different philosophy at our stations than 90% of the radio world
today, we SERVE our community. We do local news, the obituary
report, community affairs, support local schools, broadcast the
veterans services, find lost dogs and help the police catch bad
guys. Not because the FCC makes us, but because that is what we
do! A local radio station if part of the glue that holds a
community together. It's not about ratings and spots and dots,
it about how can we help our community and our sponsors to
grow. My wife and I feel that we were blessed with this big
stick in the yard and its our responsibility to use it for good
for as long as we own it. It's a shame the industry seems to
have lost its way.
Rob Clutter, WMSR/WHMT Radio in Manchester, Tennessee.
December 8, 2014: Mark: Read
December 4, 2014, article in Radio World.
your scheme works just as well as factory part. Granted the
assembly is neater by factory but results are the same.
November 24, 2014: Thanks,
Mark. Everything worked well on the
Zercom Max-Z Remote Broadcast Telephone that you repaired
for me. Hayes Calahan, EHC Sports in Strum, Wisconsin.
November 20, 2014: I really
enjoyed reading your father’s book, "Where
Have All The Broadcasters Gone?". Without going into why,
his stories brought back memoires of my childhood running around
the studios of WJEJ AM in Hagerstown, Maryland, and having
picnics at the tower site at Quirock, near Fort Ritchie,
Thanks again. The book was an unexpected
Dirk DeVault, WWCF Radio, Hagerstown, Maryland.
November 6, 2014:
You are very thorough! Best regards, Alan Zulberti in
October 29, 2014:
Mark, I ran
across your great website full of tips and tricks this week and
have been spending time looking at them. Just wanted you to know
your tip on reducing AM noise on your GMC van worked on my
2006 Chevy HHR. Since I got this car two years ago I’ve been
having lots of ignition noise while listening to distant (100
mi) AM stations. Couldn’t figure it out since the spark plug
wires on this thing are something like 6 inches long! I read
your tip to ground the hood and did that yesterday when I got
home, also ran a braided wire from the body to the engine and NO
MORE NOISE! I’ve enjoyed looking at your other tips on the page
too, lots of great info there!
Ponca City, Oklahoma.
21, 2014: Thanks Mark.
We've received lots of nice feedback on
Radio World article that you wrote about us. Yours,
Steve Raymer, Pavek Museum
15, 2014: Mark:
story about the Pavek Museum. Thank you.
Dick Witkovski in Dallas,
11, 2014: Hi Mark,
Nice article on the Pavek Museum in Radio world. It was nice
to see your smiling face in one of the photos. Maynard
Meyer, KLQP-FM, Madison, Minnesota
October 7, 2014: The shared
wisdom pages on your website are very interesting. David
Stewart, Dallas, Texas
October 5,, 2014: Hi Mark and
When I came across your website, I thought WOW,
here are people, who have spent their lives together helping
others. It's evident in all I read, the generous giving of time
Your life and service to the Broadcast Industry is a credit to
you both. Thank you so much. Ray Cox, Sydney, Australia
21, 2014: Thank
you for all the information and tips you have on your website,
they are a big help. I remember hearing you deliver a paper in
St Louis or Kansas City at the national SBE show years ago.
Thanks so much for that and all those Radio World features.
Chief Engineer, River Radio Carbondale.
18, 2014: I
am very happy with the latest purchase from you. I am also
happy that there are places like your business that sells these
type of electronics. I find myself in need of parts quite often.
Robert Albo KK4IBG in
Raleigh, North Carolina.
26, 2014: Hello
Mark. Thank you very much for sharing your knowledge! I try to
get the best signal strength from the tower. Again, thank you
and God bless you and your family! Regards, Pablo
Carcamo in Honduras
June 25, 2014: Mark:
of all, thank you for taking the time to put these up on the web
where I could search for them. You just happen to have a
crystal that I need. THANKS!!
in Nevada City, Nevada.
May 29, 2014: Mark, Just
wanted to send you a note to thank you for the quick turn around
and great work you performed on the WBVI Moseley STL system. It
sounds better now than it has in a very, very long time. Not
only did you repair the issue but we can now also fully
appreciate the processor I installed about four years ago. It
sounds incredible. Thanks again. Burley Stapley,
Contract Engineer, WBVI-FM,
May 27, 2014: Recommended on
Linked-In "Mark has a wide spectrum
of experience on lots of topics in broadcast engineering."
Service Category: Broadcast Consulting Engineer. Year first
hired: 1982. Top Qualities: Great Results, Expert, High
Integrity. Steve Brown WHBY Radio in Appleton,
May 23, 2014: Hi Mark, I’ve
enjoyed your articles, always very practical. Dan Houg
at KAXE Radio n Grand Rapids, Minnesota.
May 23, 2014: Hi Paula,
looks like we have success. Many thanks to Mark and you.
Have a great
weekend and thank you for first class service.
Stu Williamson in Auckland, New Zealand.
May 22, 2014: Mark,
I have enjoyed your articles and website for several years,
so it was a particular pleasure for me to speak with you
yesterday and benefit from your knowledge and experience.
Thanks again, Bryan Shaw in Easton, Maryland.
May 22, 2014:
Mark and Paula, Thank you both for your services on this and
all the other help you've given me. Best Regards,
Andy Bursaw at WKLK Radio in
May 21, 2014:
Excellent article, Mark! Thanks for carefully setting the
stage and taking us through the troubleshooting steps to find
the real culprit. Also, it's great to see engineers
coordinating to solve a problem. Best, Kirk Harnack in
May 21, 2014:
Thank you so
much. Look forward to working with you again in the future!
Greg White, WSLM Radio in Salem, Indiana.
May 20, 2014:
looking around the site and I'm very impressed. Stu
Williamson in Auckland, New Zealand.
May 15, 2014: Very
article by Mark Persons on 05.14.2014. I learned a lot.
Thanks for the informative articles. I am reminded that back in
my teens, tube car radios (using vibrators in the Pwr. Spy.) had
whistles up and down the AM band when tuning. They all had at
least 10KC audio band pass. Good sound too when parking with a
Pete in Hollywood, California.
May 15, 2014: Mark, I read
article about the AM interference in Green Bay. Another
great article! Thanks. Christopher in Duluth,
May 14, 2014: Hello Mark --
Just read -- and enjoyed your
article in Radio World. It was a good display of how
stations can cooperate to chase a problem. Keep creating the
good reads -- All my best -- Paul in El Paso, Texas.
May 13, 2014: Another
great article in the May 7th Radio-World magazine about the
1 kHz Morse Code-like interference on 1440 kHz.
Bob in Hamden Connecticut.
April 29, 2014:
Hi Mark: Noticed your
NAB lecture headline story on today's Radio World News Bytes
.... solid info, way to go and good for you. Charles in
April 18, 2014:
Well done on
SBE speeches! Ian in Alexandria, Virginia
April 17, 2014: Paula, Thank
you so much for the note. A pleasure doing business with you
and your firm. Bill in Aberdeen, Maryland
February 11, 2014: Thank you so much for the
kind/courteous transaction. Customer service is paramount in my
opinion and your company does great. Regards, Shane in
Morgantown, North Carolina.
January 15, 2014: Hello
Paula, just wanted to let you know the transformer arrived here
today in great condition, thanks! Look forward to doing
business again. Bill in Warrenton, Missouri
January 6, 2014: Dear Mister
Nice to look at your website.
so few in the Netherlands have knowledge of tube
Karel in Holland.
2, 2014: Hello
Mark: Great job on the Radio World
tube socket article ... nice pictures. Charles in
December 18, 2013:
Hey Mark, Just a
quick note here to say thanks for another good article --- the
one on the
tube socket change. Been reading your articles since, well,
"Common Point" days when you were doing battle with SMC
automation systems and the like. (Somewhere in my archives, I'm
pretty sure I still have those articles!) The photos in the
article were great and added a lot! Rich in Sioux City,
December 10, 2013:
help and information. I am very
grateful to you. Looks
to have a lot of
experience in this field.
Have a nice day.
Fernando in Honduras.
December 5, 2013:
I really enjoyed
tour you conducted in the recent (November 4th ) issue of Radio
World. I usually find what I need at Digi-Key and enjoy
working with the people there. Best regards,
Paul in El Paso, Texas.
November 25, 2013:
Just wanted to let you know the package arrived today. The
dummy load is exactly the type I needed. Thank you!
Chuck in Wisconsin Rapids, Wisconsin.
November 2, 2013: Hi Mark-
continue to enjoy your informative website with articles about
Minnesota radio stations. Great photos too. Paul in
October 30, 2013:
thanked you lately for all the
tech tips on your website? THANK YOU. Norm in
October 4, 2013:
Just fine, it all works now. Thanks again for your help
Mark. Doug in Osceola, Wisconsin.
September 20, 2013: Thank you
for your prompt and professional handling of the transaction.
We will keep you in mind for future business.
Ron in Macomb, Illinois.
August 26, 2013: Just read
pallet amplifier install in the BE IPA. Very nice job as
usual. I'd say you've got this kind of repair/rebuild down to a
August 21, 2013:
for the capacitor , its great! Bob in Raleigh, North
July 12, 2013: Hi there,
Thank you so much for the swift updates and
shipping! Please tell Mark I said "thank you" as well.
Stephen in Huntersville, North Carolina.
July 10, 2013: Thank
you for a very interesting and informative website. Carl
in Yakima, Washington.
June 29, 2013: Dear Paula,
Just wanted to let you know the part arrived yesterday and was
exactly what I needed. It was a pleasure doing business with
you! Thank you for everything.
Derrick in Granger, Indiana.
June 28, 2013:
how very well organized your
transformer inventory is arranged on the website.
Charles in Avon, Connecticut.
June 13, 2013: Paula: Many
thanks for your prompt shipping and for all your support! Best
David in Lewisville, Texas.
June 5, 2013:
Hi Mark, I saw your 5/31/13 Article in Radio World Magazine
transistor Failures with Science". Using a shorted 1/4 wave
stub antenna. Good Article Professor! Andrew in
April 22, 2013 on Linkedin:
have consulted with Mark on the several great articles he has
written for a number of Broadcast Magazines. He also came
recommended by many of my mentors in the broadcast industry. He
has a lot of patience when teaching the inner workings of
broadcast equipment." Allen in Mosinee, Wisconsin.
April 6, 2013: Dear
Mr. Persons: Thank you so much for sharing your exciting work
of installing and servicing broadcast transmitters with us
through the brilliant photos on your excellent website.
James in Long Island, New York.
April 3, 2013: Good morning
Mark, Thank you so much for quick service. I received the
repaired Harris THE-1 FM Exciter yesterday and had it on the air
by 4 PM. Works great. Tigran in Sioux Falls, South
March 19, 2013: Now
Zercom Max-ZII Remote Broadcast Telephone works without
having to use an adapter to get sound in both headphones.
Thanks again. You guys are lifesavers. Matt in Wausau,
March 19, 2013: Hi, Paula.
Please tell Mark "Thanks!" for being so industrious in
developing a new way to repair these meters and for being so
considerate and modest in what he charged me for the repair. My
best regards to you both.
March 14, 2013: Good Morning
Paula, I've saved the invoice you sent. I had already turned in
the PO with the packing slip so I expect the payment will be in
the next check run. Thank you both for your help in this and
many other matters in the past. You guys help me look good from
this end. A special thanks to Mark! You can be sure that I
will continue to call on you for my future needs...Best regards,
Andy in Cloquet, Minnesota.
March 11, 2013:
Hi Paula, I have read up about both of you on your website.
You both seem like nice people, have a nice family, and Mark has
been very nice to me. There are not too many people left in the
engineering business like Mark who are honest and understand the
small "stand alone" stations like the one our family owns.
Thanks! Scott in Gallatin, Tennessee.
2013: Thanks for your
webpage, it is very useful for me, because I enjoy your
stories for the technical information that you bring us.
Honduras, Central America.
13, 2013: Thank you for your fast response. Your
staff handled the transaction very professionally. I hope to do
more business in the future. Jerry
in Birmingham, Alabama.
10, 2013: Hi Mark,
follow your articles in Radio World and enjoy your website.
Anyone who likes cats is a kindred spirit.
Jim in Belgrade, Montana.
I want to say thanks for the
tips on your website, I have read many of the posts and
found them very helpful. It seems to me the factory tech
support is slowly just fading away.
Dave in Grand Rapids, Michigan.
Great article on
O scopes in RW! Good afternoon Mark, Finally had a chance
to read your article in Radio World on the amazing oscilloscope.
It took me back to my days in Electronics School in Wahpeton,
ND. It is so true that in this day of plug-n-play that many
black boxes wind up in the junk pile rather than thrown up on
the bench for what is usually an easy repair. Jeff in
Minot, North Dakota.
I read yet
article about oscilloscopes in last week's edition of Radio
World that I just got yesterday. It's
amazing how even the simplest things I take for granted, such as
scopes and preparing coax cable for RF connectors, seem to be
great ideas for articles in RW.
Bob in Hamden,
3, 2013: Dear Paula; I
received the AC Adapter for the
Zercom unit and works seamlessly.
Thanks for all. Sincerely,
Raymond in Puerto Rico.
I saw on your website the repair you did on
606 ( cap
replacement ) and was impressed!
Glenn in Blanding, Utah.
2012: I read your
Radio World article on proper installation of N connectors
with interest. As a green engineer I remember the first time
I opened the Amphenol and found no instructions. I started
looking at the pile of parts and used deductive reasoning. (I
was also a master at Erector sets in earlier years). Not sure
how, but after a couple tries I got
them in correct order and was pleased to see your detailed
instructions matched what I have been doing for almost 40 years.
Norm in Arlington, Texas.
2012: Hi, Mark,
for helping me out.
Ed in Florida.
Good Morning Mark:
I really like some of the
new stuff you've added to your website, except I spent WAY
too much time on it! Thank you for
your efforts and sharing so much info.
Looking very nice.
Del in Eau Claire, Wisconsin.
Hi, saw your article
tool boxes as I prepared a number of boxes for a planned
trip to Nunavut (a territory just south of the North Pole !!...on
the eastern side of northern Canada).
This is like packing
your van into boxes to go on an airplane. I am trying to not
forget anything for the install of a small FM
transmitter and studio in the town of Kimmirut Nu. There
is no chance of buying anything more than a screwdriver there.
Any way that is why I found your article helpful.
Wilf in London, Ontario, Canada.
After reading that
article you wrote in Radio World, I still have on my mind
that my AM station should have a tube
back up transmitter.
read your great article in Radio World
putting N connectors on cable. Steve
in San Francisco, California.
2012: Greetings, Thank you again for all your
time and assistance! Scott in Ionia,
2012: Hi Mark. I just read
Connectors the Right Way” tip article on the Radio World
website. Very good, thank you. I too have fallen victim to
poorly done connectors, typically high up on our tower where I
can’t get to them!! Mike in
Kansas City, Missouri.
I hope you and Paula are staying well. Two of your
Radio World articles struck a chord
with me. The one on
ventilation of transmitter sites
was a situation I faced when buying a shelter for an AM/FM combo
in Connecticut. Your piece on N
connectors brings back memories of a repair I did at a station
with a new 3.5kW single tube transmitter.
I quickly found that by simply moving the IPA output
coaxial cable that I could make the RF
normal or none. I disassembled the N
connector that showed an intermittent short on
I expected to find a strand(s) of braid shorting against the
inner conductor. No so. Whoever made the connector assembly did
so to perfection. What I did find was a tiny strand of brass
sitting on the Teflon insulator intermittently shorting the case
to the inner! The small shard took
down the entire box. Small things can
cause big problems! Thanks for the
articles. I enjoyed them.
Tom in Brookfield. Connecticut.
2012: Mark: Nice seeing
you on "This
Week In Radio." David in
2012: Another fine
article about clamp N and BNC connectors in Radio
World. Bob in Hamden
2012: Hi Mark,
you a note to let you know how much I enjoy your web stories and
Tech Tips. It’s full of
great info. I am also a broadcast
engineer (retired) and ham operator.
Nice job on that
Silicon Valley 0101-500CH module.
Just wanted to mention
how impressed I am
with your website! Tom
from La Crosse,
2012: Re: Transmitter instruction book. Paula,
It all looks good. Thank both you
and Mark for all your help. Best
August 2, 2012:
FM RF amplifier. Very nice modification, Mark!
from Shane in Laramie, Wyoming.
FM RF amplifier.
Beautiful job as always ... our clients don't
Charles in Avon, Connecticut.
July 10, 2012: Paula-
The test instrument made it here today in good order,
thanks for the nice packing job.
in Mineral Wells, Texas.
July 10, 2012: Mark,
Your web page is AMAZING. Randy
from Minnesota Public Radio told me to
take a look at it...and I'm glad I did.
Looking forward to reviewing more tonight at home!
Thanks for your support and free
advise! Ron from Hancock, Michigan.
July 9, 2012:
letters in this latest issue of RW
(received just today here in isolated and far distant Avon) in
response to your article on the
diminishing engineering community were legend, erudite,
persuasive ... not to mention 'right on'.
Congrats on a job well done.
Charles in Avon, Connecticut.
July 2, 2012: Mark.....Time
Domain Reflectometer just arrived and all appears
working. Thanks again for the
in Dwight, Illinois.
July 2, 2012: Hello Mark,
I just wanted to drop you a note about the nice
article in RW about cooling a site.
of some great photos, I think, makes this a great
"how to" for
those in the field looking for some guidance and suggestions,
thanks for the great effort. Rich in
June 29, 2012:
I read your article on
transmitter ventilation and got some useful tips. I was
planning to make some changes at my site and will incorporate
some of your tips. Maynard
in Madison, Minnesota.
June 21, 2012:
your paper in June 20th Radio World.
Richard in Quincy, IL.
June 21, 2012:
Paula, I received the two Belar RFA-2 units and they work
great Thank you very much. Colin in Australia.
June 5, 2012:
It's always great to check your site for the latest
in Minot North Dakota.
May 31, 2012:
Mark: I ran
across your website while looking for something else.
KLTF/WYRQ plant looks really nice.
Tim in Saint Ignace, Michigan.
May 29, 2012: Mark,
I just read your article "Where
Have All The Engineers Gone?" and it literally brought a
tear to my eye. I too am one of those now-gone broadcast
engineers that among other positions spent 30 years
in television from the era when it was
Metromedia until Fox put out the engineers in favor of almost
total automation under the control of IT-- not broadcasters.
I sometimes feel as if I was one of the last of a
As far as I can tell,
most engineers have been fired and
replaced by outside contractors who will charge by the repair
rather than being a day to day "cost of doing business."
Expertise means nothing to the "suits"
counters" in NYC and elsewhere. Thanks
again for a great article.
Bill in Saugus,
May 24, 2012:
Dear Mr. and Mrs. Persons,
I am very pleased to advise that
the moment I reinstalled the returned
exciter to the equipment rack, the channel was back
in service immediately.
truly thankful for your help.
Steve in Hong Kong.
May 21, 2012: Mark,
Good article in Radio World on
"Where have all the engineers gone?"
Fred in Lima Ohio.
May 21, 2012:
been enjoying your articles in Radio World.
last article was right on target.
Danny in Eldorado, Texas.
May 21, 2012:
Enjoyed you article in Radio World
Have All the Engineers Gone?"
Walt, somewhere in Arizona.
May 18, 2012:
Good article and right on the mark!
Bill in Bemidji, Minnesota.
May 17, 2012:
Morning Mark: I enjoyed your latest
article in Radio World. That's a good question. It's kind
of scary when you think of the local IT guy poking around in the
RF section of the transmitter! That would be like me working on
the engine in my vehicle...an accident waiting to happen.
I guess I never really thought about
the fact that an engineer might not own a soldering iron...but I
guess that's the way it is in this day of plug-and-play.
Maynard in Madison, Minnesota.
May 17, 2012:
I just wanted to say I appreciated your
commentary this week in Radio World. You made me stop to
realize that engineering is really evolving to a module-swap
operation, and the number of engineers who have the skills to
dig into equipment, understand it, and repair it, is
diminishing. Mentoring new engineers would be a good thing, but
the combination of economics and equipment design does make it
an uphill battle. John in Washington,
May 11, 2012:
website is really informative and a pleasure to read.
That is a very nice
article on the RCA 807, great job done there!
I really like the material on your site.
Best regards, John
in Dublin Ireland.
May 9, 2012:
Mark, I always look for your
articles in Radio World and they never disappoint. Your
article addresses a common radio station question these days
when ever I get a
call asking me who they can call to fix a transmitter.
Jerry in Olympia,
May 3, 2012:
browsing your site. George in New
April 23, 2012:
understand you retired from field work...congratulations on a
great career and enjoy your time.
Dave in Park Rapids, Minnesota.
April 11, 2012: Hi
article in Radio World on the importance of tower welding.
As far as FM goes, the interference doesn't affect just
STL receivers. A few weeks before the article came out, I solved
an intermittent translator (input) interference problem when an
aluminum shim near the transmit antenna came in contact with a
rusty tower bolt. The non-linear junction acted like a diode,
creating a mixer that made a great intermod generator, and the
noise was near the translator input frequency.
Also, I've seen smaller towers with a high degree of
"twist" which can loosen connections.
Thanks for sharing your experience with us.
Salt Lake City,
April 6, 2012:
Thanks for such
good service. John in Salem, South
March 27, 2012:
You are obviously a black belt electronics
Hal from Zolofo Springs, Florida
March 22, 2012:
Hi Mark, You wrote
an excellent article regarding
welding on AM towers in Radio World.
Craig in Camden, Connecticut.
March 16, 2012:
I’m behind on my reading - I just finished reading your
article in the Feb 1, 2012 Radio World. Very nice!!!
David in Rocklin, California.
March 8, 2012:
for the nice info on your website.
Andy in Duluth, Minnesota.
March 6, 2012:
I had an opportunity to read your detailed
Radio World February 1st article
on the THE-1 exciter upgrade and was
very interesting reading. It is good
to see that engineers such as you still show interest in
upgrading older equipment to keep expenses at a minimum.
JT in Ocala Florida.
purchased a Comrex Access, but we use our
Broadcast Telephone in places with weak phone lines
or no cell service. On Saturday, we did a game and there were
four Zercom Max-Z units there! Ours was one of them. They are
time tested and built like Sherman Tanks.
Jon in Indianapolis, IN.
article on the latest edition of Radio World.
Randy in Brainerd, Minnesota.
Excited about Exciters! Hi Mark,
I read your
article about exciters. That Harris MX-15 looks familiar.
I totally agree with your idea of using actual knobs once in a
while. There never seems to be a small screwdriver anywhere in
sight when you really need one!
Maynard in Madison, Minnesota.
to Radio World magazine: After
article from Mark Persons about having a "tube type" AM
transmitter for a stand by, I am taking his advice and looking
into that situation now. My dream is
to find a McMartin BA-1K. It
is small, and I love the looks of it.
Hi Mark, I really
enjoyed reading your handy dandy "hints and kinks" for MW and
FM. One other tip I'd like to toss in
FM Continental 816 series transmitters,
be sure to check the fan on the harmonic filter. Since it is
"out of sight and out of mind" it's frequently overlooked.
Jay from Dallas, Texas.
Paula and Mark, I
received the CRL
a pleasure to do
business with you!
Olivier in France.
2011: (From Reader's Forum in Radio World Magazine)
MARK. Being from Minnesota, I read with interest Mark Persons'
article about the wireless Internet tower that interfered with
KLIZ AM. ("How
Did That Wireless Tower Get There," September 1, 2011).
We are fortunate to have Mark Persons in our state; he
understands and deeply cares about maintaining quality radio.
Our industry needs to foster the development of the next
generation of quality engineers like Mark. Leighton
Broadcasting and many other broadcasters in our state are
grateful for his work for us over the years. Bob
Leighton, CEO of Leighton Broadcasting in St. Cloud, MN.
I enjoyed your article in the
October 19 issue of Radio World. Coincidentally, I’m working
on restoring the 1968 RCA BTA-5TI at KWSU-AM in anticipation of
its 90th anniversary.
Tom from Pullman, Washington
I just read your Radio World
piece about WJON Radio. Good work.
Ira in Putney, Vermont.
I read with
interest your articles about
de-tuning AM re-radiators. I'm in
Canada and we face the same problems.
Mark, Just been looking around your
site. It's well laid out and the
photos are very good - something you don't see that often these
days. Stu in New Zealand.
your website so much.
Oscar in Honduras.
You have a nice website. Thanks for the "Tips" section.
I really enjoyed looking through about half of them. Right now
I need to get back to work. I'll go through the rest later. :-)
John in Shelbyville, Tennessee.
Mark; I just read your
in this issue. Details
Interesting, to say the least. I am glad it all
worked out in the end. Hi to Paula, take care.
Best regards, Eva in Bristol,
Congratulations Mark. Your proved that things can be worked out
if approached correctly and with your engineering knowledge you
made it work!
article in Radio World on your
detuning of the cell tower next to the AM!
Details Dan in Grand Rapids, Minnesota.
Mark, I saw your article in Radio
World about the tower near KLIZ. Very
interesting. Minnesota radio stations have been lucky to have
you in our industry. We appreciate the work you’ve done for us
over the years.
Bob Leighton, Leighton Broadcasting.
read your very interesting story about the problems
that KLIZ had.
The happy ending to the the
story was extra pleasing to them, I am sure.
always enjoy your stories.
R.E. Witkovski, President Besco
I sure enjoyed your "Popped Up Antenna Tower" article in
the September 1, 2011, issue of Radio
World. The article reminded me of a phone call I received years
ago from a North Central Kansas client station, KFRM (5KW
directional antenna on 550 kHz). Rod,
the local engineer, told me that someone had just
built a 200 foot
tower across the highway from the station. After a quick check
of the database, I told Rod that the
someone was the State of Kansas and the tower wasn't even half
way constructed. The planned height was 450
feet. I contacted the state communications director and
was told that he would "check into it". Like you, I mentioned a
couple of FCC regulations. A half hour later I received a
return call saying, "You're right, we're wrong, make it right."
Some $60,000 later, also with the help
of Mr. Nott, the tight shotgun pattern to the south-southwest
was back into compliance. The project resulted in a continuing
association with the state, as their tower projects moved
Thanks again for the article. 73's
Larry in Wichita, Kansas.
July 8, 2011:
Hi Mark, I wanted to
take a minute and tell you how much I enjoy your website. I'm
now out of the business, but for about 30 years broadcasting
"paid the bills." I love your approach to problems, and the
elegant solutions you come up with. Your "Technical
Tips" section is a great read.
Keep up the great work - I look forward to more in the future!
I was looking
over your website, very impressive.
Steve in Brookville, Pennsylvania.
you for the quick
& very smooth
transaction. Have a Great Day!
:O) Ken in
Point Robert, Washington.
comments about the
Negative Electricity story.
I am so pleased with the service. You
are so nice and helpful. The
transaction was smooth. I got my
Otari 10.5" reel hub adapter in a timely and orderly fashion.
Thank you. Ron in
Mike let me know you were on the
TWIT webcast last night, so I tuned in for a while.
Any guy who manages to quote Mr. Spock during an interview is
all right in my book…“Live long and prosper!”
Doug in Wadena, Minnesota
2011: Ann and I watched
appearance last night. You did
very well. Production quality is
quite good. I like your
microphone and story about Gates.
in Fosston, Minnesota.
Good show on
TWIT tonight! Bill from
Good job on the
broadcast Mark. I found it interesting.
Kurt from Brainerd, Minnesota
Good job on
Marv from Austin, Minnesota
Thanks so much for the quick response and great service!
in Savage, Minnesota.
2011: I received the CBS
Volumax 4300 in good condition.
I am very pleased with my purchase and the fast service.
It works very well and so does the RCA modulation
monitor I purchased from you previously. Thank you.
Howard in Spokane Valley,
read your article about the
wind turbine near KLOH. Good article, it is amazing how
people don’t think about the fact that sticking large pieces of
steel up in the air near a radio station antenna won’t have any
effect. Steve in Richfield,
March 8, 2011:
Ben in Seattle, Washington.
2011: Very nice
upgrade there at KBUN.
Steve in Green Bay, Wisconsin.
2011: Nice article on detuning the
wind turbine pole in the March 1 Radio
World that I just got today.
Bob in Hamden, Connecticut.
TWiT Televison appearance, nice interview,
Mark! Shane in Laramie, Wyoming.
31, 2011: Dear Mr. Persons,
I read with much interest your articles in "Radio World"
tool box. I sincerely hope that you plan to write more
articles. Your writing is definitely
for the common person...easy to understand, and easily
absorbed. Far too often today, writers forget that not all of
their audiences may have PhD's and over dramatize long words
that often times mean 'and' 'to' and 'around' to name just a
few. I congratulate your writing style and thank you.
I look forward to future informative and interesting
articles with the by-line...'Persons."
Fuquay-Varina, North Carolina.
19, 2011: Hi Mark, I
just had to drop you a quick note to say that your
toolbox is a bit more organized than mine!
I always enjoy your articles, keep 'em coming.
Maynard from Madison, Minnesota.
Dear Mark, I just read your
year end review and it sure would be great if the economy
continues to improve. Incidentally, I especially enjoy the
photos of your installation projects. Thank you again for
your assistance in the sale of the Audioarts console. Joan and
I wish you and Paula the best of everything in the coming year.
Jon in St. Louis Park, MN.
December 24, 2010:
Mark - The Dummy Load arrived this evening. Thanks so much
and Merry Christmas! Jack in Fullerton, California.
Mark, Thanks for the quick return on
the Mosley STL repair, it is working great. Marc
from Ozark, Arkansas.
December 11, 2010:
GREAT article in Radio World on
your van. That baby looks like it has everything
you need for a trip out here! Your neatness and
preparation for anything is well expressed in it.
Jerry in Lake San Marco, California.
December 11, 2010: Hi
Mark, I enjoyed your
article about your van and work. Thanks for sharing
and for the
generator article recently as well.
Lyle in Los Angeles, California.
December 8, 2010: Hi,
your article in Radio World. Good advice.
Kirk in Antioch, Tennessee.
December 7, 2010:
Saw you in
Radio World, what happened to your hair!? I guess I
should talk as what gray hair I have left is bailing
out. Love your van! It looks
pretty well thought out.
December 6, 2010:
Mark, just a
dandy story on your van in
Radio World. Was not the
least bit surprised at how well organized you are.
Dean in Sioux Falls, South Dakota.
November 29, 2010:
Engineers always come out second best with
and Cathy in Lake San Marco, California.
November 1, 2010: Thank
you for sharing
the story with me. I love the pictures…..Linda
from Madison, WI.
October 30, 2010:
Hello, kudos on a very
informative Web site! Dan from Roseau, MN.
October 28, 2010:
Thanks Paula. Tell Mark thanks for wasting some of
my time with all of the wonderful info on your website.
I have been looking at the various pages since I got off
the phone with you nearly 20 minutes ago! Back to work
now, Jess in Minneapolis, MN.
October 21, 2010:
just now opened my Oct. 6th issue of Radio World and
column about gensets, very informative. Great
job! Richard in Oregon.
September 28, 2010:
article in Radio World on power! I've had two power
disconnects replaced at our transmitter site, both
caught by feeling the outside of the box as a routine
check. Dan in Grand Rapids, MN.
September 15, 2010:
I love the
tech tips on broadcast repair, especially the Harris
FM 20K, which I have the privilege to be involved with
here on the Gulf Coast at Power88. I recently had a
problem where I could not get the PA plate current to
come up to 2 amperes. It was running low, but I had
100% power. Weird! Found the problem in the high
voltage power supply. The
high voltage cable was loose at a
terminal where it entered the cabinet on a porcelain
insulator. Brad in Spanish Fort, Al.
September 7, 2010:
I'm always left a little smarter after talking
with M. W. Persons. Thanks for your service beyond the
sale. Mark in Peru, Illinois.
August 19, 2010: By
the way, thank you for a very good website! Best
Don in New York
July 7, 2010: Hey
Mark, Good to see your
article in Radio World this morning! I thought I
was the only one that ever had second harmonic
problems. (540 in Carmel Valley with 1080 in Santa
Cruz, California). Thank God we had a good engineer!
Jerry in Lake San Marcos, California.
July 6, 2010:
enjoy working on transmitters when things make sense. I
learned how the Harris HT-5 FM Transmitter output
connection was made with this most recent repair. The
manual was no help and Harris really wasn’t either.
Thanks for YOUR help. It made all the difference!
Marv in Austin, MN.
July 1, 2010: Hi
great article in the last Radio World Magazine.
Interesting. Steve from Winona, MN.
June 23, 2010:
I took the opportunity to peruse your Web site. I
always find excellent
Tech Tips there! Thanks for an excellent resource.
I especially liked the
AM noise/GMC van piece. Del in Eau Claire,
May 8, 2010:
dressed engineer at the
NAB convention in Las Vegas!
Jim in Fosston,
March 1, 2010:
Thanks for the information and information on
Revox and tip the Mark. Best regards, Paul
February 10, 2010:
Mark & Paula: Thank you for the great website and for
the equipment manual that you sent me. You provided
very fast service and I expected to get a reproduced
manual, but you sent me an original in excellent
condition. I just purchased two 820E/F1 transmitters
and the manual will be very important to me. Jim
KB1MIW in Newport, VT.
February 3, 2010:
Hello Paula & Mark: I came across your website and
really enjoyed the categories, especially the 'Thoughts'
section. It's nice knowing there are others who enjoy
American accomplishments and technology. Leland
NC9K, Iron Belt, WI.
January 24, 2010:
Hi: I was just
looking around the Internet looking for large variable
capacitors for a link-coupled tuner and I found you Web
It is the nicest web page I have ever
seen! Very nice! I have spent some time exploring and
learning. John in New London, MN.
January 13, 2010:
you helped me to no end in repairing my
ReVox A-77 Tape Recorder. You are a wealth of
information and a wealth of hard to get parts. Thanks
for being there.
Jacob from Sylvan Lake, MI.
January 1, 2010:
You are a good man and you have a nice website.
Ed from Scarsdale, NY.
September 1, 2009:
cow story. Maynard from Madison, MN.
August 24, 2009:
From M. W. Persons to customer: The Moseley PCL-606
STL receiver problem turned out to be a bad variable
capacitor in the first oscillator module. I have seen
this before so I replaced all three capacitors like that
in the module. Good thing you sent the transmitter here
too as it was off frequency a bit. All is well now and
the system should ship from here on Monday. Customer: I
don't call you "The Wizard" for nothing! Bill in
13, 2009: Sent the
cow story around to radio station employees --
thought you'd like to know we think you're udderly
amazing! Chris Grams, Manager
of WYRQ Radio.
April 15, 2009: Hey Mark, got the Harris HT-10FM
Transmitter up and running yesterday with the modules
you repaired. Works great. Thanks for all your help.
Keith in Marshall, MN.
It's a cool website. Rita from New Mexico.
February 1, 2009: I bought a Zercom
Max-Z Remote Broadcast
Telephone around 1989, and absolutely loved it. If the
unit were a car, I would have "driven" it the equivalent
of about 300,000 miles. Minor league sports can be
incredibly tough on equipment, and both the Max and the
Max-ZII have been
outstanding. Used the Max-ZII
for an entire hockey season a year or so ago, and that's
brutal stuff, with set up and tear down before and after
every game. Despite needing repair, I've had the
units now for 10 years, most
of that time doing two sports (70 or so hockey games and
140 baseball games per year). It's been remarkably
good. Thanks again!
Bob in Oakland California.
December 30, 2008:
Thank you folks for the fast service and careful packing
of the RCA modulation monitor. It arrived right on time
and is already in service. I'm very pleased. Thanks
again. Howard in Spokane Valley, Washington
Saw your website
WPPI project. Looks like a first class install.
Fabulous site. David in Ely, MN.
Just wanted to thank
you for the great website information and pictures of
and also the original
Thanks for the "heads up" on the honey-comb
filter. I'll make sure to hit that on my upcoming tube
change. Extending the shaft on the PA bias control was
pretty slick, along with how you implemented the
David Halperin at El Paso, TX.
Mark, thanks for your
info on hooking up the phone/amplifier!
That was just what I was
looking for! Royce.
March 7, 2008:
website, my complements.
I shall return.
February 26, 2008:
By the way,
nice website. I've been reading it on and off all
morning (slow day at the insurance factory). Have to
take a break, it's stirring up the broadcaster in me.
George Brand in Grayling, MI. Ham call WA8SCO.
I like your website. It
contains a lot of information.
January 31, 2007:
"Thanks Paula. I got the box today from UPS, just in
time to replace the missing
power supply and knob on the used
Zercom Max-Z unit. I sent
it out with our second team
for a girls basketball broadcast. It's working fine.
I'm glad you are still providing service and
support for the Max-Z's as
they are still the best thing out there for those of us
who are on a budget and can't
afford the new codec systems."
Southwestern Ohio Public Radio (WSWO-LP
Being an LPFM on a thin budget,
I don't see us going to Comrex units anytime
soon, so we are doing our sports via cell phone or land
lines using the Max-Z. They
are easy for our volunteer announcers to set up and
operate even though they may not be very familiar with
November 16, 2006:
I love your website.
You seem like nice folks.
August 23, 2006:
Your website, by the way,
is very well done. My
July 28, 2006: Your
website is very professional and user friendly.
Palm Coast, FL.
I like your website!!!
Steve Gretsch KLFD
Radio in Litchfield, MN.
October 9, 2005: Mark
and Paula, not quite sure how I found your website, but
the past 45 minutes have been a treat...what
a wonderful pictorial recognition of your many wonderful
and loyal customers. Congrats on your new home. It's
obvious...it's a center point of your lives. May our
paths cross sometime soon...would love to tell a few
stories, and hear a lot more. Dean Sorenson.
March 28, 2005:
I looked up your
website. Very impressive. Say hi to Josie the cat for
me! Phil Hayden, Minneapolis,
February 18, 2004: I think
your website lost an electron....... it seems so positive!
Roger Birkholz, Grand Forks, ND.
March 14, 2003: I enjoyed
visiting your website. It's friendly, a pleasant place to visit.
Sincerely, Burt, K6OQK
February 24, 2003: Mark:
Thought you'd like to know: we just put our Milbank, SD
translator on the air on Saturday using the antenna we had you
retune to 90.5 and it works great! The VSWR is very low and the
translator sounds great with better than expected coverage!
Al Gilbertson WNCB (now WJRF),
Christian Radio, Duluth, MN.
February 10, 2003: Looking to
purchase the "travel bag" for the Zercom Max Z ll. Rick.
Answer: Sorry, those bags are out of production and none are
available new or used as far as we know. Thanks for finding us
on the web. We are available to repair your unit when the time
comes that you need help. Reply: Thanks, Mark, I will
bookmark your site.
November 7, 2002: Hey
gang....as usual, interesting site you have....good to see
what's going on and hope you are both well...Best regards/
Pete Boyce, Midamerica Electronics Service.
August 30, 2002: Mr.
Neutron....nice website. Tom Wright, Delta
May 16, 2002: Hi Mark, I
received the ReVox switch yesterday. Thank you again for your
timely response. Been a pleasure doing business with you.
Regards, Jerry Jennings.
May 12, 2002: I tried the used
audio processor unit you sent and it works well. I'm super happy
with this transaction. Thanks, you have an excellent company
and I wouldn't hesitate to buy more stuff from you in the
future. David Newfeld.
April 13, 2002: Mark, just
looked at your web site for the first time, I think it is
terrific. Good show. Jim Wychor, Past President of
the Minnesota Broadcasters' Association
April 9, 2002: Mark: I
am pleased to inform you the antenna you recently tuned for us
works great! Also the connector you sold us works well too! We
mounted the antenna with a 10 foot mast on top of the Glencoe
Water tower and the reflected power is very low. "Pal" Al
http://refugeradio.com in Duluth, MN.
January 24, 2002:
Just happened on your excellent website.... things to do at
2AM !! Pete Boyce, Midamerica Electronics.
January 23, 2002: Bill:
Thanks for finding our website. Sorry we don't have the item you
are looking for. We list all major used equipment that we
have. I did pass your name along to someone who might have
one. Reply: Thank you so Mark. Indeed, it looks like
you've pointed me in the right direction. Your efforts are very
much appreciated. Sincerely, Bill Tinsley.
December 31, 2001: Can't believe all you've put into your
site. It's been fun watching it grow. Now, back to your site.
Great job, Mark! Jerry J. Collins, President, F&L
Broadcast Development Corporation in Anacortes, WA.
March 5, 2001: Hi
Mark...Great website! I don't know how Paula finds time to work
- she seems like a really busy lady. I really enjoyed both of
personal pages. Best regards, Jo-Ann Dunn,
November 29, 2000:
Hi Mark, Thanks again for
taking care of my Econco order. Just visiting your web site and
discovered you are a ham as well. I am KØSH. First licensed in
'74 as WNØMHK, then WBØMHK, WWØF and finally the vanity call for
last 4 years. 73, Steve Heaton Waitt Radio, Inc.
September 28, 2000: Hello
from Bluff City, TN. What a great web site....What a beautiful
office...I think I could live there!!!! Eva Shaffer
August 27, 2000:
Fantastic website you have!! You are
offering a fantastic service with all that
used equipment and expertise. Ken Benner.
July 24, 2000:
Mark, I took a closer look at
your website. You and Paula have done a great job with it. I'm
impressed by your credentials. I'm looking forward to receiving
the Patch Switch. Regards, Dave Stewart, Creative
Broadcast Audio, Elizabeth, NJ.
July 18, 2000: Hello Mark.
Just wanted to let you know I visited. Wow! You've been busy.
Wish I had more time to play here. Excellent site! Mike
Murrey, Corporate Engineer, TKC Radio, Rice Lake, WI.
March 19, 2000: Hi
Mark.......Checked out you site, well done! Tim
in Crosby, MN
February 9, 2000: I Found
your site on the Web....loookin'
gooood! Warren Johnson.
February 9, 2000:
Cool Site. Tom Martinson,
Network Systems Administrator, Bresnan Communications.
December 15, 1999:
Hi Mark: I was looking at the various web pages
and came across yours. It is excellent--very nice.
Best Regards, Merit Arnold W6NQ
October 11, 1999:
Nice website Mark!! Very clean and well laid out...just like
your radio work!!! ; ) Take Care! Bill Sanford KAWE/KAWB
TV Channel 9/22 Bemidji/Brainerd, MN.
October 11, 1999:
Just visited your website again. Nice work. Enjoyed the ham
and personal pages too. Mark Croom.
October 11, 1999:
Say Hi to your cat. from
"Pup" (our feline) ~0 0~ Cole Grace in Duluth, MN.
September 27, 1999:
Had a chance to peruse your website - very, very nicely laid
out and informational. Paula should brag on her talents more - I
didn't know she was a ham, too, until visiting your website.
Again, good work! Best, Kirk Harnack VP-Engineering,
Delta Radio, Inc., Boyle, Mississippi.
September 23, 1999:
Was just fooling around and decided to visit your web site.
Nice Job! Hope everything up north is going great. Karen says
Hi! Mark Mueller, Mueller Broadcast Design
October 30, 1999: Hi to Mark,
Paula, and Diode from Rhode Island! The website just keeps
getting better and better! Dave Richards at
January 31, 1999: Hi Mark, What a wonderful web page. I can
see I have a lot of work to make mine as exciting as yours is.
Well the lake here is not frozen (Lake Huron) we are about 500
feet from the lake where we live. Congrats on the President
status and Paula as First Lady of the
January 22, 1999:
Hi Mark, I like your website, it's easy to move around and
view what you have. Woody Woodward KSUM Radio,