Hello Tom,
Tom Rauch <w8ji@contesting.com> wrote: How could we record the signal level,
anyone know
As I described in a previous e-mail, one can use a known signal generator
trough a coupler mixing it with the beacon's signal from the antenna. Together
with a 1Hz filter for each carrier one can have a good approximation of the
measured signal (of the beacon). The signal coming from the demodulator will be
measured with a voltmeter or by PC's soundblaster. All stages should work
linearly without any compression.
For the "noise theory", please refer to my previous e-mail.
73 de YO3FFF
Cristi
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