Date: Wed, 8 Nov 2023 06:12:07 -0600 From: Rob Atkinson <[email protected]> To: [email protected] Subject: Topband: ICE Model 135B Preamp
<On those ICE preamps, check the small dipped inductors, because they <can blow open if the preamp is exposed to a high enough RF field. If <your preamp is on a rx antenna and you are transmitting with ham QRO <nearby that's enough to do it. IIRC powering down the preamp isn't <enough. It has to be behind some kind of feedline relay that opens. <73 <Rob <K5UJ How do you operate QSK with that kind of setup ? Are sped up vac relays required to open off and / or grnd the remote RX pre-amp ? What if one of those 8 or 9 circle arrays used ? Each one has it's own pre-amp. Jim VE7RF _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
