What is the fault? We see a lot of issues with antenna systems not being able
to handle the higher power, either 500 or 1500 watts. This can develop over
time or show up very quickly after the amp is installed. Be sure to check the
cabling and connectors for possible arcing.
In this situation, t
Use an antenna analyzer to determine the actual complex antenna
impedance. I've always viewed SWR as more of a hocus pocus value, easy
value to obtain, but very broad in definition as it is a ratio between
two impedance, both usually unknown.
Chances are the antenna or a connector or feed l
Are you developing an overshoot from the K4?
On Mon, Dec 19, 2022 at 4:00 PM David F. Reed wrote:
> Lou,
>
> I appreciate the suggestion, but it is with a K4D, properly cabled, used
> to work fine, and does it on some bands but not others... changed the
> delay to 15ms and still does it... Also
Lou,
I appreciate the suggestion, but it is with a K4D, properly cabled, used
to work fine, and does it on some bands but not others... changed the
delay to 15ms and still does it... Also seems to depend on band; for
example, does it on 10m, not on 12m...
Also, below, I said 2 SWR meters; I
Check the delay setting on your transmitter. You might have a hot switching
issue. I think (but check your manual) that unless you’re using the KPA1500
with a K3 or K4 without the 15-pin Elecraft interface cable, you’ll want at
least 10ms of delay to avoid that. I had that issue with a K4 and a
My KPA1500 has started faulting inappropriately for High SWR.
I say inappropriately because all 2 of my SWR meters (K4D, KPA1500,
Palstar HF-AUTO) show an SWR of between 1.1:1 and 1.2:1. with just the
K$ transmitting and also with the KPA1500 in fine as it faults out.
Any ideas?
--
Thanks &
Folks I have a few excess board for sale
KDSP2
KAF2
KNB2
KAT2
K160RX
KBT2
KIO2
Only off line responses, please
-73- FrankKG9H
kg9hfr...@gmail.com
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