Hi John,
can you - and the rest of suffering by this problem - put here some
more details about your setting:
- POWER per Band active?
- TUN PWR -nor- or any value defined?
Just to have complete picture.
Did you try to chenge some settings with some change in behaviour?
Thnaks,
Lexa, OK1DST
WA6L napsal(a):
I have been having a similar problem on 30m through 160m. Output is fine on
CW on all bands. On SSB, I am gettting only about 50 watts on those low
bands.
It appears to be hardware related, at least in my case. I have been doing a
lot of remote troubleshooting with Gary Surrency, and at this point and
awaiting my RSA for repair service.
73,
John, WA6L
williamsonr wrote:
If this has previously been discussed - please forgive me.
This weekend ten meters was "open" (as much as it could be at the bottom
of a cycle) and the 10-10 contest gave me a great opportunity to try out
the 10 meter band on my recently completed K3 #1318(latest firmware). All
seemed well until I noticed that my power output on SSB was down as
indicated on the K3 power meter and where I normally see 100 watt pep
output on my tuners average reading meter. So I grabbed my Bird 43 (with
PEP option) and a dummy load. Sure enough, only about 50 watts PEP even
though the control on the K3 is at 100? Placed the K3 into tune and
95-100 watts out? Go back to SSB and now the PEP power is back where it
should be at approx 100 watts PEP. After a few more SSB transmission -
low power again(still connected to the Bird and dummy load). This went on
for a while as I checked and re-checked all of my mic and comp settings.
All other bands worked correctly. Power supply not current limiting, all
connections/cables good (connection to my stati
o!
!
n ground verified), fresh battery in my studio mic, SWR on ten meter
antenna below 1.4:1 etc. etc. Took the LPA heat sink bottom cover off to
make sure the LPA transistors were making good thermal contact. (I had
added a spot of heat sink compound to each transistor during my assy
process) There was a clear outline of the TO-220 transistor and an even
film of compound indicating good pressure and contact. Put everything
back together. Haven't seen the issue again - yet? But I am not convinced
I did anything to make it go away?
Anyone else had this experience?
Rodger
N4NRW
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