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585pin [2007/03/28 19:21]
n5na created
585pin [2007/05/21 00:44]
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-====== Paragon PIN Diode Mod ====== 
-**From Ten Tec Reflector January 21, 1999** 
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-If you have read Rhode'​s articles in QST you have a pretty good idea what the benefits are from changing out the switching diodes and replaceing them with PIN diodes in the receiver section between the antenna and the first mixer. 
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-The diode I chose was a Motorolla MPN-3700 two wire diode. 
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-The diodes that should be replaced are D1-D16 on the RX High Pass Filter Board (81330). 
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-I also changed out diodes D1,D2, D7 & D12 on the first Mixer boards. 
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-I found the receiver was quieter and on Contest weekends with all the big guns on I had much less problem with Intermod. The trick is finding the diodes they are really hard to get in small quantities. Most of the  suppliers want to sell several thousand. 
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-Good luck and 73 
- 
-Jack WN5A 
  

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