[Lowfer] XZO QRP captures

[Michael Sapp]

John, Doug, & All: Seven overnight captures of XZO at 4mw out from his Kenwood 590S. LIkely I could have doubled that total if Doug had run a sequence opposite of XXM.  When XXM was at 0 SNR (or higher) there were time sequences when XZO was visible on the waterfall but my blocking dynamic range at 65Hz of signal separation seems to be limited to a signal stronger than about -25 SNR...

      Timestamp Call MHz SNR Drift Grid Pwr Reporter RGrid km az 
       2015-11-14 08:36   WH2XZO   0.475646   -30   0   EM85wb   0.001   WA3TTS/2   EN90xn   638   16  
       2015-11-14 05:08   WH2XZO   0.475645   -28   0   EM85wb   0.001   WA3TTS/2   EN90xn   638   16  
       2015-11-14 03:48   WH2XZO   0.475645   -27   0   EM85wb   0.001   WA3TTS/2   EN90xn   638   16  
       2015-11-14 02:36   WH2XZO   0.475645   -29   0   EM85wb   0.001   WA3TTS/2   EN90xn   638   16  
       2015-11-14 02:32   WH2XZO   0.475645   -29   0   EM85wb   0.001   WA3TTS/2   EN90xn   638   16  
       2015-11-14 02:14   WH2XZO   0.475645   -27   0   EM85wb   0.001   WA3TTS/2   EN90xn   638   16  
       2015-11-14 01:40   WH2XZO   0.475645   -25   0   EM85wb   0.001   WA3TTS/2   EN90xn   638   16 


 Eric had on capture the WSPR dbase reported

      2015-11-14 06:32   WH2XZO   0.475645   -22   0   EM85wb   0.001   WG2XJM   EN91wr   761   13 


 Perhaps Eric can fill in which way his antenna was pointed at the time....

My local noise environment continues to be improved by several dB from the local ultility changing out all the analog KWH meters in the area for new smart meters.  Either the meter socket contacts were oxidized or some in-line component in the meters themselves were generating broadband radio noise.  I can see the difference on my ARGO QRSS waterfall at 137kHz-185kHz  and have a lower S meter reading for background noise on 20 meters (S 1/2 vs S2)...

73, Mike wa3tts


----------------------------------------------------------------------------
    From: Michael Sapp <wa3tts at verizon.net>
    To: John Langridge <jlangridge at sbcglobal.net> 
    Sent: Friday, November 13, 2015 8:12 PM
    Subject: Something for your 603m blog...



    John: Nice capture of XZO at 1mw power level. Not sure what Doug was really running, but I think it was just whatever low power comes out of his transceiver at 630m....

    https://www.dropbox.com/s/2iah3et0yi6vk7i/XZOQRP.JPG?dl=0

    https://www.dropbox.com/s/6urn7kg7tezvlhx/XZOQRP2.jpg?dl=0


    73, Mike wa3tts