-20 dBm is a pretty strong signal. You're probably over driving your SDR
into compression. I would use a larger value attenuator or reduce the
levels from the signal generator.
Ron
On 06/21/2017 08:55 AM, GNUBeginner wrote:
Thank you for your detailed message. Please correct me if I am on the wrong
path.
I am injecting 802.11g signal using Vector Signal Generator at different
power levels (0 dBm, -5 dBm, -10 dBm, -15 dBm and -20 dBm) using 20 dB
attenuator. After running gr-scan with RF gain 0 dB option at the first
center frequency for this OFDM signal which is 2412 MHz, I am seeing the
following dB results respectively:
-49.37 dB
-49.54 dB
-50.23 dB
-53.58 dB
-58.52 dB
I am also planning to continue the same experiment using the other two
center frequency options which are 2437 MHz and 2462 MHz.
I would appreciate if you could please tell me what I am doing wrong. I am
using modified gr-scan code which has the RF Gain option included by zelfie.
Thanks
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