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merbanan / rtl_433

Program to decode radio transmissions from devices on the ISM bands (and other frequencies)
GNU General Public License v2.0
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Inverted data from hackrf #1402

Open evilpete opened 4 years ago

evilpete commented 4 years ago

when I used my hackrf with the command :

src/rtl_433 -f 915M \
        -s 1000K \
        -d driver=hackrf \
        -R 154 -R 76 \
        -t bandwidth=2500000  \
        -g "LNA=40,AMP=14,VGA=30" \
        -Y classic \
        -vvv

I noted I was not receiving the LaCrosse nor Insteon data I normally receive, on further investigation ( and a few extra debugging printf's ) it is clear the demodulated data is inverted .

SoapySDRUtil reports:

Found device 1
  device = HackRF One
  driver = hackrf
  label = HackRF One #0 457863c82f74521f
  part_id = a000cb3c006a4337
  serial = 0000000000000000457863c82f74521f
  version = 2018.01.1

Note: the bandwidth and gain settings used were total guess work but needed to receive any kind of data from the hackrf

hackrf-rtl_433.zip

zuckschwerdt commented 4 years ago

Are perhaps I/Q swapped? Maybe you can try to swap them in rtl_433 and see if that fixed it?

evilpete commented 4 years ago

I assumed I/Q swapping also, i guess the question is where..

I'll play around and try to locate the cause and determine if it is a Soapy layer or hackrf issue. an option to swap I/Q may be a needed future option

gdt commented 1 year ago

@evilpete status?

evilpete commented 1 year ago

havent looked into it / used my hackrf in a while, i'll try to retest / verify within a week or two