Forum: GNU Radio obtaining duration of Idle and busy cycles

Announcement (2017-05-07): is now read-only since I unfortunately do not have the time to support and maintain the forum any more. Please see and for other Rails- und Ruby-related community platforms.
Sahoo, Anirudha (Guest)
on 2012-10-18 23:51
(Received via mailing list)
  I am trying to use "" to obtain
Idle (white space) and busy cycles of a channel (say channel 1
of WiFi).
  I was thinking of doing it the following way:
Continuously get the FFT (and hence power in db) of
center frequency of channel 1. Whenever the power is
very low (below a threshold), assume the channel was
idle, otherwise channel was busy.
  Let us say, I found that 10 consecutive fft readings indicated
that channel was idle, can I assume that the corresponding
idle period was 10xtime to get one FFT reading? Is "time to get one
FFT reading" equal to "dwell_delay"? If not, what is its value?
  If the above method is not accurate/correct, any other method
which would work?

sumitstop (Guest)
on 2012-10-22 17:17
(Received via mailing list)
I think that to get one FFT reading shall equal dwell_delay + tune delay

View this message in context:
Sent from the GnuRadio mailing list archive at
This topic is locked and can not be replied to.