[Lowfer] SIW then SIW then SIW again

Andy - KU4XR ku4xr at yahoo.com
Tue Dec 19 08:12:25 EST 2017


Greetings all:

When Garry notified me that SIW was transmitting on the intended schedule, I setup for an overnight session
to see how well I could copy all 3 transmission modes.. I was not disappointed, and propagation cooperated..
I used SpecLab for capturing, and feeding audio to OPERA.. and WSPR-15 got audio directly from souncard..
I use the filters in SpecLab to reduce several types of noise, so WSPR-15 did not have that benefit as did OPERA..
The radio IF bandwidth was set at 500 Hz.. The dropbox image shows a decent SpecLab capture of all 3 of
the transmission modes , out of sequence, but all there in one screen.. 
It's amazing what 1 watt DC Input into a 15 meter antenna can do on a good night on 1750 meters..

73 all: Andy - KU4XR

Below is a dropbox link to a capture of my whole screen showing OPERA -WSPR-15, and SpecLab.
The SpecLab image is overlayed from a copy of the full SIW lowFER transmission sequence on 185.185 KHz ...

https://www.dropbox.com/s/3tbevhn2dbtresx/SIW%20whole%20screen%20-%20Copy.png?dl=0

Below is the copied text of all the decodes overnight - OPERA at the top, and WSPR-15 below ...
___________________________________________________________________________________________

08:59    136 K3SIW de KU4XR Op32 493 mi -36 dB F:3% in Friendsville, Tennessee - EM75xr 1504.8 Hz

***********  19/12/2017  ***********  

10:59    136 K3SIW Op32 Deep Search -45 dB 1504.8 Hz   
09:59    136 K3SIW Op32 1504.8 Hz -38 dB |---- --------| Fade: 3%
08:59    136 K3SIW Op32 1504.8 Hz -36 dB | - -- --------| Fade: 3%
07:59    136 K3SIW Op32 1504.8 Hz -37 dB |----------| Fade: 3%
06:59    136 K3SIW Op32 1504.8 Hz -37 dB |------ ------| Fade: 3%
05:59    136 K3SIW Op32 Deep Search -40 dB 1504.8 Hz   
04:59    136 K3SIW Op32 Deep Search -44 dB 1504.8 Hz   
02:59    136 K3SIW Op32 1504.8 Hz -36 dB |  ------------| Fade: 3%
01:59    136 K3SIW Op32 1504.8 Hz -38 dB | -- ----------| Fade: 3%

***********  19/12/2017  ***********  

0200  -36  -0.9    0.185185    0   K3SIW         EN51      0
0400  -32  -0.6    0.185185    0   K3SIW         EN51      0
0500  -36  -0.9    0.185185    0   K3SIW         EN51      0
0600  -38  -0.6    0.185185    0   K3SIW         EN51      0
0700  -37  -1.3    0.185185    0   K3SIW         EN51      0
0900  -33  -0.9    0.185185    0   K3SIW         EN51      0


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