Tech Tips fom MWP&A

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Radio Broadcast Technical Consulting and Sales
10032 Island Drive, Brainerd, MN 56401

Technical Tips from Mark W. Persons

Ideas that might help you at a Radio Station

A typical view of the M. W. Persons shop. Ideas abound when products are installed at radio stations and when they come to the Repair Shop.

AM Tips: AM RF Harmonic Trap AM Unipole Detuning AM Coil Cleaning AM Field Intensity Meter Repair AM Receive Loop Antenna Updated 05/06/2012 AM Receive Wire Antenna AM Gas and Air Arc Gaps BE AM5E Cooling Fan Modification New 05/03/2012 Dummy load modifications to make it safe New 10/24/2011 Dayton Industrial AF315 Receiver Modifications GMC Car Radio Noise Grounding Rod/Shorting Stick for Transmitters Harris MW-1 PA Module Repair Updated 4/28/2012 Harris MW-10 Time Delay Relay LPB 20 Watt AM Transmitter McMartin BA-1K AM Transmitter Metal Box for AM Tuning Components Nautel ND1 Front Door Brace Nautel J1000 Air Filter Cleaning New 9/22/2011 RCA AM Oscillator Frequency Change RF Oscillator for an older AM transmitter RF Mixing Products on AM and FM Tower Welding Transmitter Pass/Reject Filter Variable Coil Repair	FM Tips: Antenna Troubleshooting Antenna Repair BE FM 25T FM Transmitter Repair BE FM 35A FM Transmitter Repair BE FX-30 Exciter Meter Replacement New 04/23/2012 BE FX-30 Exciter Repair New 12/30/2011 CCA FM Exciter Modification for Frequency Agility New 05/07/2012 CCA FM Transmitter HV Blocking Capacitor Repair Collins/Continental 2.5 KW FM Transmitter Repair Collins/Continental 815A 5 KW FM Transmitter IPA Collins/Continental 20-25 KW FM Transmitter Updates Collins/Continental AM and FM Pushbutton Switches Collins/Continental FM Transmitter Maintenance Collins/Continental FM Transmitter IPA Drive Belt Continental 802A FM Exciter PA Module Repair New 12/27/2012 Continental 802B FM Exciter PA Module Repair New 12/27/2012 Cutting Stainless Steel Delta 700 Watt Amplifier Modification New 08/01/2012 Grounding Rod/Shorting Stick for Transmitters Energy-Onix SST-30 FM Exciter Repair New 07/11/2012 FM Interference Filament Voltage Control Extended Range Updated 6/11/2012 Harris 150 Watt RF Preamplifier Modification New 05/26/2012 Harris FM-20K Transmitter PA Door Harris FM-20K Transmitter work Harris HT-5 Filament Adjust Modification New 11/02/2011 Harris FM-25K and 35K Repairs Harris MS-15 and MX-15 FM Exciter Updates High-Voltage Transformer Repair Harris THE-1 FM Exciter Repair Harris FM Exciter Power Cable Power Connector Block Problem QEI Modulation Monitor Calibration Shorted Quarter-Wave Stub to protect exciters Silicon Valley 0101-500CH 500 Watt Amplifier Repair Transmitter RF Harmonic Filter Transmitter Power Output Chart Tube Socket Repair
Studio-Transmitter-Link Tips: Diversity Antenna Switch for STL Systems Hum and Buzz in STL Receive Preamplifier New 08/20/2012 Moseley PCL-606 STL Receiver Repair Nicom STL Receiver Upgrade
Transmitter Building Tips: Gate Lock Weather Covering Transmitter Site Cooling Fan Setup Transmitter Site Building Air Filters
Studio Tips: Arbitron Equipment Installation Grounding for an Arrakis 1200-10S Console Grounding for an Arrakis 2000SCT-12S Console Stanton C.500 CD Player Remote Control Harris Stereo-5 Audio Console upgrade Marti RPU Receiver Relay Modification Power fuse fix for Radio Systems Audio Consoles Equipment Rack Grounding	Miscellaneous Tips: Audio RF Filter Audio Processing Repair CBS 444 Audimax III Repair and Modification Frequency Measuring Hall Of Shame Revised 05/14/2012 Integrated Circuit Adapter New Old Stock Tube Conditioning Treatment Updated 12/17/2012 RF Radiation Measurements Temporary 450 MHz RPU Antenna Trouble in a 120 VAC Plug Trouble in a 3-phase/240 VAC fused disconnect Standards...How would we get along without them? Maintenance list for backup power generators

The stories go on and on. Stop in again sometime. I'll leave the soldering iron on for you.
Mark W. Persons Ham W�MH

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page last edited 04/02/2013