[Lowfer] Warming up (not really the right phrase) for SAQ

[Paul Daulton]

Spare tx at WMS has failed. I will try to swap it out today. BTW it has 
been runnning AR at QRSS 30 for ID, I will go back to WMS QRSS60. 

Merry Christmas and Happy Holidays to all!

Paul k5wms

Quoting JD <listread at lwca.org>:
> It was pleasant enough when I started my dress rehearsal for SAQ this
> afternoon, but there was frost all over everything by the time I returned to
> town just after dark.  The computer is currently (no pun intended)
> recharging, the upconverter is indoors on its wall wart to save the two UPS
> batteries that source its 24 VDC in the field, and the car and radio are
> receiving supplemental power from the mains until H-Hour. 
>
> I'll be using Todd's variation on the AMRAD upconverter and the accompanying
> LPF.  The latter is what I built the buffer amp to be able to use to maximum
> advantage, but it turns out the buffer works so well with the R-5000 that I
> hadn't used the upconverter a lot until something came along below 30 kHz
> that really needed it.  I can't predict how this is going to turn out,
> though.  This afternoon and evening, there was a lot of noise (mostly
> looking like SMPS junk) around 17 kHz.  I just hope it's gone by 2 AM. 
>
> With everything working so well, I took the time to become more familiar
> with upconverter reception today.  It's odd trying to mentally compensate
> for frequency error, which is no longer directly proportional to the tuned
> frequency.  There is a bit of net gain over the receiver's native LF mode,
> but not as dramatic as you might expect given the reputation of some other
> receivers at LF.  The filter is pretty aggressive, beginning at or a smidgen
> below 500 kHz, but I was still able to copy XGR/6 quite nicely in slow CW on
> 501 kHz right at dusk,  XSH/7 was working the AGC hard in Morse at 476.3,
> and later some FSK or PSK mode that was about 50 Hz wide.  LowFER SIW was
> gaining strength after the sunset fade, but WMS was not very clear yet.  And
> of course, MP was chugging away at 137 both before and after sunset. 
>
> Now to find a way to stay warm tonight when the temperature is 15-20 degrees
> less than this afternoon.... 
>
> John
> ______________________________________________________________
> 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
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

Paul Daulton K5WMS
beacon WMS 185.302 khz qrss30/slow 24/7
Jacksonville,Ar 72076
em34wu