Op25 and Airspy

philacop

Member
Premium Subscriber
Joined
Dec 19, 2002
Messages
395
Location
Clifton Hgts PA
Hi
Trying to set up my Airspy to run OP25..
I currently have it set up using a RTL sdr and need to know what commands need to be changed to what to change from the RTL dongle to the Airspy ?
Thanks
 

wgbecks

Active Member
Joined
Jan 17, 2005
Messages
831
Location
NE Wisconsin
The Airspy R2's and Mini's have three distinct gain modes; Sensitivity, Linearity, and Custom. My personal preference has been to make
use of the "Custom" gain mode whereby LNA and Mixer AGC are disabled allowing me to optimize LNA, Mixer, and IF gain values for
best overall performance.

The following is an example of rx.py configured with an Airspy R2 operating in the "Custom" gain mode.

./rx.py --args 'airspy=0,sensitivity=0,linearity=0,bias=0' -N 'LNA:15,MIX:12,IF:8' -S 2500000

Note: The R2’s sample rates (-S) are 2500000 and 10000000 while the Mini's are 3000000 and 6000000 respectively. You can also specify
the actual device serial number for applications where two or more Airspy devices will be in use.
 

philacop

Member
Premium Subscriber
Joined
Dec 19, 2002
Messages
395
Location
Clifton Hgts PA
The Airspy R2's and Mini's have three distinct gain modes; Sensitivity, Linearity, and Custom. My personal preference has been to make
use of the "Custom" gain mode whereby LNA and Mixer AGC are disabled allowing me to optimize LNA, Mixer, and IF gain values for
best overall performance.


The following is an example of rx.py configured with an Airspy R2 operating in the "Custom" gain mode.

./rx.py --args 'airspy=0,sensitivity=0,linearity=0,bias=0' -N 'LNA:15,MIX:12,IF:8' -S 2500000

Note: The R2’s sample rates (-S) are 2500000 and 10000000 while the Mini's are 3000000 and 6000000 respectively. You can also specify
the actual device serial number for applications where two or more Airspy devices will be in use.


Thanks wgbecks !!
 
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