It could be.But whats concerning to me is only on CW. I would try bypassing everything on its way to the dummy load. Try without the tuner. And even try another patch cord. Make another if you can. Just to rule everything out. I was ready to send mine back for repair many times, but looking back im glad?i didnt. Not to say its not the amp, but just to be certain.?
GL
On Sat, Nov 14, 2020 at 1:01 PM Alan Baker <
alwbaker@...> wrote:
Hi Barry
Interesting problem. This happens to me into a dummy load sitting 2 feet from the amp. And of course when through the HF-Auto into the antenna as well.
I will keep looking for a solution but I think it is in the amp.
Regards
Alan
On Nov 14, 2020, at 2:51 PM, Barry <barplo@...> wrote:
?
Hi Alan,
Yes, I have and have spoken to Mark about it. But it was on 17m.?
So, I replaced my balun. Problem solved.? Whats odd is it was only 17m CW and thru the entire 17m band not just CW portion.
SSB and FT8 totally fine. Thats what stumped us. Why only CW?
I was also having some bypass issues with other antennas. After redoing each coax connector it was all resolved. No more Bypass issues anywhere.
73 GL
On Fri, Nov 13, 2020 at 6:36 PM Alan Baker <
alwbaker@...> wrote:
I am a proud owner of this amp for one month. I also own the HF-Auto tuner and it works slick. I am a contester and have used this amp tuner combo in a RTTY and SSB contest running 800 watts SSB and 400 watts RTTY with no problems.
this past weekend I was operating the ARRL CW SS contest and only on 80 mtrs I could not keep the amp operating while trying to send the 7 seconds of report. No other band had this problem of kicking into bypass before I could transmit the entire report. SWR was reading 1.1 on the amp and 1.06 :1 on the HF-Auto. After the contest I ran tests into my dummy load to eliminate the chance it was the antenna or feed line. I do not have a lightning protector in line.
same problem existed. After calling Palstar and discussing the problem Mark sent me a software upgrade. The fact that this problem only occurs on 80 mtrs and into a dummy load as well as to the antenna via the tuner was a new one for Mark.
After installing the new firmware I ran the same test and found an improvement which was everything work as expected up to 500’watts now butt try to go higher and after 8!seconds of transmitting a certain signal the amp tripped into the Bypass mode.
has anyone else experienced anything like this?
Alan- W1BQ
