[Lowfer] 2200m WSPR

[John Andrews]

JD,

I have usually lost XND at my local sunrise, currently around 1215Z. But 
last night, my copy ended at 0648Z, so he must have shut down early.

John, W1TAG

On 12/17/2016 4:08 AM, listread at lwca.org wrote:
> I think XND must go QRT at some point during the night. I had great copy
> through the end of the 0648 UTC time slot this morning, then nothing
> further! The apparent skywave PLCs, and a mysterious carrier slowly
> stepping up in frequency between 137.420 and .430, all remained nicely
> visible, and there was no evident change in noise level.
>
> In the spots I uploaded to WSPRnet, there are a few during the late
> evening where the SNRr was as high as +4 dB. Not only was the signal
> audible at that point, it was downright loud!  Ignoring the arbitrary 2.5
> kHz bandwidth against which noise is calculated for display by the WSPR
> software... within the actual 250 Hz bandwidth of the IF filter, it was
> possible to measure the carrier at 5 S-units above the median noise value.
>  The Argo cursor confirmed that signal was generally 30 to 33 dB higher
> than adjacent noise-only bins at that same time.  It's very seldom that
> I've seen a signal at 2200 meters move the SW-meter at all, but XND was up
> to S7 at times, while the median noise was around S2.
>
> Despite a line of t-storms from west central Colorado down into western
> Arizona, static was tolerable, and propagation also looked good from the
> east after I gave up on XND.  Am seeing nice, clear WSPR15 from SIW, saw
> the best SJ of the season thus far, and caught a beautiful QRSS "W" from
> WM before I secured the site to return to town and make this report. Will
> head back in a while with high hopes for further positive results.
>
> Probably won't be in the field tomorrow night, though! It was 50 out there
> just now, but that will plummet during the day, leaving us very near 0 for
> the next two nights.  Also had excellent illumination from moonlight for a
> while, until the fog moved in.
>
> John
>
> On Sat, December 17, 2016 12:01 am, N8OOU wrote:
>> John,
>>
>>
>> Thanks for supplying some numbers on 2200m to compare. I let Wspr run
>> overnight, then on to mid morning. I experienced a loss of signal in the
>> predawn to postdawn timeframe, but then XND came back in after the full
>> sunrise.
>>
>> My biggest issue is I left the LowFer running and it is mixing with
>> something in the daytime to block XND completely when it transmits. I could
>> only decode Wspr in between WM transmissions. The two antennas have only a
>> couple hundred feet separation.
>>
>> 73   de   N8OOU - Mike Meek
>>
>>
>
>
> ______________________________________________________________
> Lowfer mailing list
> Home: http://mailman.qth.net/mailman/listinfo/lowfer
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Lowfer at mailman.qth.net
> Post must be less than 50KB total for message plus attachment!
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>