This link is very useful and one I didn't find when I searched. It seems that with the particular preamp and xcvr I have a sequencer is needed to ensure dx is removed from the coax before rf is introduced. I think the easiest solution is to get a different preamp once I get my icom repaired. I could also swap it with the mirage I'm using at home with the 847 which I think is immune to rf or is switched. Unless you have an icom xcvr their preamps are a bad purchase. Thanks everyone. Rick W2jaz
Sent from my iPad http://RickLawn.com On Aug 24, 2012, at 12:43 PM, "Bob DeVarney W1ICW" <[email protected]> wrote: > I suspect the issue with the Icom preamps and a TS-2000 is that the Icom > preamp does not appear to RF-sense.. if there's DC on the coax, it's in > line, if there's not DC on the coax, it's bypassed. I run the SSB > SP-2000 and it can handle 200 watts RF-sensed. No sequencer necessary > with the rig barefoot. > > The box you referenced on eBay protects the TS-2000 from amplifiers that > need a lot of current from the radio to switch them, or have high > voltage levels in the switching circuit ( bad design ) > > I did find this link which had a lot of useful info: > > http://forums.qrz.com/showthread.php?287072-ICOM-AG-25-amp-TS-2000-Questions > > On 8/24/2012 12:15 PM, Lawn, Richard wrote: >> I have an icom preamp and wish I didn't. I'll send you the eBay link >> separately. >> Rick >> >> >> > _______________________________________________ Sent via [email protected]. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
