No GPS fix whatever I do

[majedalanni]

Hi, I have HackRF one with ANT500, trying to spoof my android 10 phone GPS, I follow exactly instruction and couple videos, removed my sim card turned high accuracy off in Android, turn on airplane mode. but it will never fix

my android is rooted, is there a way we can check logs maybe to see why it not fix or do I do something wrong?

Thanks

[michalsternadel]

Try to generate fake signal with -b 8 option like this: gps-sdr-sim -b 8 -e brdc1090.20n -l 55.2768359,6.2364598,100 then push it to the air using: hackrf_transfer -t gpssim.bin -f 1575420000 -s 2600000 -a 1 -x 0 As far I know HackRF One requires an 8 bit signed IQ raw file with no header information. Works for me.

[majedalanni]

Try to generate fake signal with -b 8 option like this: gps-sdr-sim -b 8 -e brdc1090.20n -l 55.2768359,6.2364598,100 then push it to the air using: hackrf_transfer -t gpssim.bin -f 1575420000 -s 2600000 -a 1 -x 0 As far I know HackRF One requires an 8 bit signed IQ raw file with no header information. Works for me.

Thanks you sir, I already did -b 8 with no success, however I started to get one device locked after I add -C -10

[RannyTheCoder]

@majedalanni ..Is your lock stable for the duration of simulation (default 300 secs) ?

[Diagru25]

you should use flag -t for step gen bin file and hackrf_transfer -t gpssim.bin -f 1575420000 -s 2600000 -a 1 -x 42 i did it and success for all devices except Iphone 12

[Imtiaz08]

what does the -x represents please?