[Elecraft] P3 Clicking

[John_N1JM]

Thanks, Matt. Sounds like a good explanation to me since it seems to go away
with the preamp off.

73,
John N1JM


Matt Zilmer-3 wrote
> John,
> 
> Maybe it's -110 dBm average noise, but with -20 dBm static crashes?
> Normally you would see these as broad lighter areas on the waterfall,
> short duration.
> 
> You may also have a noise source that's peaking high, but outside of
> the P3's visible span range.  If it's anywhere near 40m, the P3 would
> still pick it up and it might cause the detector to disable the
> preamp.  I've had this happen with SWBC signals on voice peaks.  This
> (or some similar cause) could explain why you have this happening only
> on 40m.
> 
> 73,
> matt W6NIA
> 
> On Sat, 22 Mar 2014 07:04:59 -0700 (PDT), you wrote:
> 
>>On further investigation it appears to only happen on 40 meters and I
>>discovered I had the preamp on. Once I turned the preamp off the clicking
>>seems to have disappeared. If this has something to do with high signal
>>level, I'm only listening to -110dbm noise.
>>
>>73, John N1JM
>>
>>
>>John_N1JM wrote
>>> Normally when you change bands with the K3 the P3 will click(relay?)
>>> once
>>> and the scope level will drop down a little. Recently I hear the click
>>> happen ever once in awhile just sitting there no band change. Is there
>>> something failing?
>>> 
>>> 73, John N1JM
>>
>>
>>
>>
>>
>>-----
>>73, John N1JM
>>K3 #5986
>>P3 #1752
>>KPA500 #596
>>KX3 #926
>>XG3
>>XG1
> Matt Zilmer, W6NIA
> --
> "Give me six hours to chop down a tree and I will
> spend the first four sharpening the axe." -A. Lincoln
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-----
73, John N1JM
K3 #5986
P3 #1752
KPA500 #596
KX3 #926
XG3
XG1


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