[Lowfer] WH2XBA signals over night

Garry Hess k3siw at sbcglobal.net
Fri Mar 14 09:07:13 EDT 2014


Congratulations Bob, Dex, and Marcus for you signals clearing showing on 
the DF6NM VLF grabber 
(http://dl.dropboxusercontent.com/u/26404526/opds.htm). WH2XBA even 
detected but /4 is definitely in there as well, just above a spur that 
looks like the one I have on my HP3500 Windows 7 64-bit PC.

Deep-search decodes here were:

loop

2014-03-14 09:33:51 WH4XBA 1022km 29501.000Hz 2mHz -51.1dBOp  95% 18.6dB
2014-03-14 07:22:46 WH4XBA 1022km 29501.000Hz 2mHz -52.1dBOp  82% 15.0dB
2014-03-14 06:04:18 WH1XBA  934km  29499.000Hz 3mHz -42.1dBOp 88% 20.8dB
2014-03-14 03:53:04 WH1XBA  934km  29499.000Hz 1mHz -47.3dBOp 89% 17.5dB
2014-03-14 01:41:48 WH1XBA  934km 29499.000Hz 0mHz -43.9dBOp  82% 20.4dB

eprobe

2014-03-14 09:33:48 WH4XBA 1022km 29500.996Hz 1mHz -44.8dBOp  91% 18.4dB
2014-03-14 07:22:44 WH4XBA 1022km 29500.997Hz 2mHz -44.2dBOp  69% 17.1dB
2014-03-14 06:04:18 WH1XBA  934km 29498.997Hz 2mHz -43.1dBOp  93% 20.1dB
2014-03-14 05:11:35 WH4XBA 1022km 29500.999Hz 1mHz -49.0dBOp  86% 17.3dB
2014-03-14 03:53:04 WH1XBA  934km 29498.999Hz 1mHz -46.0dBOp  92% 19.2dB
2014-03-14 01:41:49 WH1XBA  934km 29498.998Hz 3mHz -45.9dBOp  78% 18.1dB

The loop did better on WH1XBA but the eprobe did better on WH4XBA, even 
after Bob went QRT and the loop was aimed at Dex. Probably a result of 
noise levels rather than signal levels.

Regular opera with the eprobe produced the following decodes:

09:33 28 WH4XBA Op2H -45 dB   |----------------- 
--------------------------------------- -- - ------------- 
--------------- -- -----------------------| Fade: 6%
07:22 28 WH4XBA Op2H -43 dB   |---------------------------- 
--------------  -------- -     -- -----   -- - 
------------------------------------ ------| Fade: 13%
06:04 28 WH1XBA Op2H -41 dB   |------------ 
--------------------------------------------------- 
---------------------------------------      -          | Fade: 13%
03:10 28 AW1WTX Op2H -44 dB   |----------  - --------- -- ------  ---- - 
-----  ------ -  - --- ------  ------ ---------  ----  --  -- - ---- -- 
---- | Fade: 25%
01:41 28 WH1XBA Op2H -40 dB   |----------------------   ----- -- 
------- - --- -  -- ---------------------------------------------- 
--------- -------| Fade: 12%
***********  14/03/2014  ***********

Obviously the AW1WTX "decode" is bogus. For some reason the WH1XBA 
decode for 0353Z was missed even though the signal appeared fine through 
that decode window on an ARGO QRSS30 display. Nice to see Dex's signal 
in there at SNR comparable to that for Bob.

-- 
73, Garry, K3SIW, EN52ta, Elgin, IL


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