Disable internal AGC in AirSpy HF+

Richard Hedlund richard.hedlund at gmail.com
Tue Oct 30 10:16:13 UTC 2018


Hello,

For my purposes in GNU Radio using the osmocom source block i would like to
disable the internal AGC in my AirSpy HF+. I see that i can choose the
"Gain Mode" setting, however i am not sure that will disable (when set to
manual) the AGC on the AirSpy HF+.

Do you know of any good way to achieve this?

I have installed the following library for the AirSpy HF+, where there is
an API which enables you to disable the AGC, however i am not sure how to
achieve this in GNU Radio:
https://github.com/airspy/airspyhf

*$airspyhf_info*
AirSpy HF library version: 1.4.2
S/N: "removed"
Part ID: 0x00000001
Firmware Version: R1.7.2
Available sample rate: 768 kS/s

*$uname -a*
Linux hedric-dev 4.15.0-36-generic #39-Ubuntu SMP Mon Sep 24 16:19:09 UTC
2018 x86_64 x86_64 x86_64 GNU/Linux

Hopefully this is enough information for you, otherwise let me know.

Kind regards,
Richard
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