David
Thanks for all the info. Wayne seems to have explained it fairly well.
I think there were a few contributing factors in my setup.
I have a new and quite a bit quieter antenna, thus less noise to cover
up the small spikes. I never had the NB on but I had the PRE AMP off on
20M. Most of
-09-09 11:31 AM (GMT-05:00)
> To: donw...@embarqmail.com, elecraft@mailman.qth.net
> Subject: Re: [Elecraft] PX3: Possible problem with display
>
> Don
> Thanks for the suggestion but that does not fix/improve the situation.
> Looking at it further I also have spikes at roughly 23,
Further, I found this reply from Wayne (back in 2014)
On Oct 14, 2014, at 6:35 AM, jsdroyster at nc.rr.com wrote: > Our panadapter
regularly (but not always) shows wide green bands of "noise" before the antenna
is connected. When present, the bands are visible in the same panadapter screen
You will get spikes with no antenna where they are not covered up by band
noise. Also if you have a really big spike near where you are tuning, try
turning down the NB level in THE PX3 or turn the PX3 NB OFF.
Elecraft have explained about these spikes which are as a result of the
switched mode
il.com,
elecraft@mailman.qth.net Subject: Re: [Elecraft] PX3: Possible problem with
display
Don
Thanks for the suggestion but that does not fix/improve the situation.
Looking at it further I also have spikes at roughly 23, 30 and 52Khz
above and below my cursor. The 52 Khz signal is at S4 the
Larry,
Read the PX3 OSB null procedure carefully.
Check/do the following:
1) Clean the cable connectors contact area with alcohol applied to a clean
cloth, removing oil, grease, dirt, ect. Cleaning the connector in the KX3/PX3
is more of an issue, and I haven’t found a good way to clean
Don
Thanks for the suggestion but that does not fix/improve the situation.
Looking at it further I also have spikes at roughly 23, 30 and 52Khz
above and below my cursor. The 52 Khz signal is at S4 the other two are
about S2. I can turn on the PX3 and look at the display with no antenna
Larry,
I suspect hum, buzz, and noise pickup on the RX I/Q cable shield between
the KX3 and the PX3.
Try "Bonding" - run a heavy wire or strap between the KX3 and the PX3 in
parallel with the RX I/Q cable. The shield from old RG-8 coax works well.
73,
Don W3FPR
On 9/9/2016 10:12 AM, Larry
I have just recently noticed that there is a continual spike that follows my
cursor. It is internally generated. In CW mode it is away from my tuned signal
by the amount of my CW side tone setting and can be switched to above or below
the cursor depending on if I am in CW or CW-R.
These spikes
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