This howto explains how to receive iridium pager messages with the rad1o.
iridium-toolkit
repo.git clone https://github.com/muccc/iridium-toolkit.git cd iridium-toolkit
hackrf_transfer -r /dev/stdout -f 1627000000 -a 1 -l 40 -g 20 -s 2000000 | python2 extractor.py -c 1627000000 -r 2000000 -f hackrf --jobs 2 | grep "A:OK" | tee outfile
outfile
, captured pager messages can be decoded with:python2 iridium-parser.py outfile