[Lowfer] TAG WA in CT

Sat, 18 May 2002 11:53:10 -0400

Very pretty picture Jay,

Assume WA is the +4 db signal? Sometimes receivers reverse the picture, 
depending on whether the upper or the lower heterodyne is used. I guess this 
shot brings attention to the fact that the proposed 100Hz bandwidth for 136k 
is no problem for simple slow modulation. Is the modulation frequency limit 
50Hz for a +/- 50Hz deviation or a 100HZ BW restriction? Kind of rules out 
all but deep-throated talkers if voice is to be attempted. <G>

Bill A

PS: It's snowing like crazy here in Andover, MA and we are getting some 
accumulation!!

>
>John & Bill
>
>Good signals down here this morning. Here is a spectrum analyzer shot of
>your two signals. The receiver AGC is turned off, and a step attenuator
>verified the relative accuracy of the display. It is probably within a
>dB. Very little fading this morning and you are consistantly within 4 dB
>of each other. Last night there were 6 dB or greater fades, however,
>your two signals tracked pretty well through the fades.
>
>http://www.advancedreceiver.com/capture/TAG-WA051802.jpg
>
>Jay
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