My 7610 works perfect with my La1k. I use the band change cable.
On 3/8/2023 1:43 PM, W1SWL wrote:
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FYI; Never had an issue driving the LA-1K with a
Yaesu FTDX101MP.
Worked Great.
Art W1SWL
I agree with Bob's evaluation.? I used an
Icom 7600 with my LA-1K? w/o and issues. My TS-890S has no
issues.? I suspect that the SDR-function on the IC-7610,
and it's "younger kin" IC-7300, might be the design
problem.
I am
using an ICOM IC-7610 with my LA-1K and HF-AUTO tuner. I
have been having intermittent "OVERLOAD" issues. I can
run the amp for several hours, then it starts
"OVERLOADING" every time I speak into the microphone.
When I AC power cycle the amp and back on, everything is
back to working normal. Then a few minutes later, it
goes into OVELOAD again. It does it mostly on SSB,
however I have seen it happen also when first key on CW
and RTTY.?
I called Palstar tech support and talked wtih Mark. He
indicated ICOM IC-7300 and IC-7610 transceivers put out
a HIGH PEP power spike on SSB and CW key-ups which
exceeds the threshold value of the amplifier input
station, causing the LA-1K to go into OVERLOAD.? He
suggested using an ALC connection between the ICOM
transceivers and the LA-1K, and playing with the ALC
settings on both the ICOM transceivers and the LA-1K to
find a value that stops the RF OVERLOAD peaks. He also
suggested flattening out the transmitter audio using
compression and mic gain levels, so no high RF peaks are
being produced at key-up.
I have been trying Mark's recommendations and the jury
is still out. Still having intermittent OVERLOAD issues,
however not a frequent. I'm still trying to find that
perfect sweet spot.?
Another local ham said maybe I am having floating RF in
the shack causing the amp to go into OVERLOAD. I checked
all my cables, connections, and I have everything
connected to earth ground buss in the shack. No sure
what else I can check there.
Anyone else have any input or recommendations?
Thomas NE7X...
