Topics

Airspy Mini only 6 and 3 MSPS

SoNic67
 

I have run a test and it looks like it can “push” only 6 not the expected 10:

airspy_rx -r NUL -t 0
Device Serial Number: 0x061C67DC2B077BA3
Stop with Ctrl-C
Streaming at 5.999 MSPS
Streaming at 6.032 MSPS
Streaming at 6.017 MSPS
Streaming at 6.008 MSPS
Streaming at 6.003 MSPS
Streaming at 5.999 MSPS
Streaming at 5.997 MSPS
Streaming at 5.995 MSPS
Streaming at 5.994 MSPS
Streaming at 5.993 MSPS
Streaming at 5.993 MSPS
Streaming at 5.993 MSPS
Streaming at 5.992 MSPS
Streaming at 6.020 MSPS
Streaming at 6.015 MSPS
Streaming at 6.007 MSPS
Streaming at 6.001 MSPS
Streaming at 5.998 MSPS
Streaming at 5.995 MSPS
Streaming at 5.994 MSPS
Streaming at 5.994 MSPS
Caught signal 0

User cancel, exiting…
Total time: 22.3123 s
Average speed 6.0014 MSPS IQ
done

OK. Time to see the info of the firmware:

airspy_info
airspy_lib_version: 1.0.9

Found AirSpy board 1
Board ID Number: 0 (AIRSPY)
Firmware Version: AirSpy MINI v1.0.0-rc10-3-g7120e77 2018-04-28
Part ID Number: 0x6906002B 0x00000030
Serial Number: 0x061C67DC2B077BA3
Supported sample rates:
6.000000 MSPS
3.000000 MSPS
Close board 1

Where’s the promised 10MSPS (20MHz IQ)?

  • 12bit ADC @ 20 MSPS (10.4 ENOB, 70dB SNR, 95dB SFDR)
  • 10, 6 and 3 MSPS IQ output – Optimized for portable and tablets
  •  
Also:
airspy_rx -r NUL -a 10 -t 0
Gives the response:
argument error: unsupported sample rate

prog
 

On Thu, Oct 31, 2019 at 11:35 PM, SoNic67 wrote:
airspy_rx -r NUL -a 10 -t 0
airspy_rx -r NUL -a 20000000 -t 5