Re: Keying Relay Buffer Debate
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Mike . . .
The tech told you correctly, especially if you are using
RF-sensing to change bands.
But remember, the
LA-1K is not a QSK amplifier.
If operating full CW break-in is what lies behind your question,
then in order to prevent hot-switching and avoid
deterioration of the amplifier's relays you would need an external
electronic T/R switch, such as DX Connections QSK-2500
().?
But perhaps your question relates to something else.
The only issue I am having with my LA-1K at this point does not
concern hot-switching or relay deterioration, but intermittent
faulting to BYPASS SWR of which Palstar is aware and a solution is
being worked on.? The QSK-2500 is not generating the spike (we
don't think), because the faulting still occurs with the QSK-2500
removed.
Good idea about having this (or any) discussion about owner's
problems.
73,
Kent? K9ZTV
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Would like to get a discussion going on if it is necessary to use
a Keying Relay Buffer when using the Palstar
LA1K Amp. I called Palstar this week and talked with one of their
technicians and told him I was planning on getting an LA1K amp in
the near future.? I told him that I am using an Icom IC-7300. My
question to the tech was do I need to use a Keying Buffer in
between the LA1K and the IC-7300.
Palstar told me it wasn't necessary and that I just needed to use
one RCA cable and connect it to the PTT connection. He also said
to keep the transmit power on the exciter to 40 watts. Comments,
suggestions greatly appreciated.
Mike.
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