Even without an input (antenna QRN or a noise diode) you should see the noise
from your sound card's ADC. Nothing at all on the plot equates to me to the
settings being off, so I suggest patiently following N0SS's instructions on
EVERY setting.
Also understand that the Spectrogram does need to know which input (line or
microphone) is getting the audio, and you need to adjust the 'audio slider' your
PC provides in 'software.'
It may not be your OS - but I myself still use XP.
73 Curt
----- Original Message ----
From: John Cooper <
[hidden email]>
To: elecraft <
[hidden email]>
Sent: Wed, April 13, 2011 8:50:58 PM
Subject: [Elecraft] spectrogram no signal
OK I finally downloaded the free spectrogram ver 5.17 running on windows 7 it
comes up set like on NOSS site says too have a noise generator hooked up to
antenna. Headphone jack to line in jack on computer can hear noise thru
speakers. But nothing shows up on spectrogram just white screen. Tried running
in compatibility mode for win 95 xp and vista. any ideas?
WT5Y
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