[Hackrf-dev] RX data loss with hackrf_transfer

OSQZSS osqzss at gmail.com
Tue Dec 2 04:36:36 EST 2014


Hi Paul,

Yes, ramdisk is the way to go! So, it was all due to my sluggish HDD.
My HackRF One is now able to record and replay GPS signals smoothly.
Thanks for your advice.

OSQZSS

2014-12-02 13:58 GMT+09:00 Paul Connolly <eeipcy at gmail.com>:

>  OSQZSS,
> Have you tried running something like:
> hackrf_transfer -r /dev/null -f 1575420000 -s 2600000 -n 260000000 -g 30
> -l 40 -a 0
>
> To confirm that is it not a slow harddisk access time problem. Or maybe
> write to a ramdisk instead:
> $ mkdir /tmp/ramdisk
> $ free -m
> $ sudo mount -t tmpfs -o size=512M tmpfs /tmp/ramdisk
> $ hackrf_transfer -r /tmp/ramdisk/gps.bin -f 1575420000 -s 2600000 -n
> 260000000 -g 30 -l 40 -a 0
>
>
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