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LA-1K Interface with Icom IC-7700
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Rich McCabe
开云体育Mike, I don’t always pay attention but yes, I have the same issue, At first I thought my SteppIR had not finished tuning but I watched it a few times and it had long stopped.? I cant honestly differentiate between modes but I am reasonably sure it’s been CW and FT8 where I noticed the SWR. ? The amp works well for me except it’s the noisiest amp I have owned. The relay for one and the fan is quick to come on ?and ramps to high speed quickly. Cools off quickly too.
? Rich ? From: [email protected] <[email protected]> On Behalf Of Mike Coogan ? Have had my LA-1K about two weeks. Driving it with Icom IC-7700. When keying amp in cw/rtty/digi modes, see large momentary |
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Rich,? Thanks for your reply. Originally was using Icom ic-7700 built in meter and observed the swr spike. Subsequently
installed a Array Solutions Power Master meter between radio and amp input. This meter very fast and accurate measurements, verified swr spikes seen. Some around 5 to 1 swr. Always on cw/rtty/digi, never on ssb. Talked to Palstar rep, he explained the amp switching process. I won't attempt to relate what was said, hope Paul or Mark would respond here. However ?the radio is seeing something not liked in the amp switching process, again hope Factory folks will jump in here. With my IC-7700 being a solid 200w final, driving amp at 40 to 45w max, the swr spike probably not a issue. However, want to use the amp with a 100w Icom Pro 3 as well. No other issues with the amp, do like the LA-1K. Mike KB7ME |