kal -s GSM900 fail to find signal found by gr-gsm

[petterreinholdtsen]

Hi. After building the source on Debian Jessie, the binary fail to find any base stations. This is rather strange, as gr-gsm is able to find GSM data. Any idea how to debug it?

$ time src/kal -s GSM900
kal: Scanning for GSM-900 base stations.
GSM-900:

real    2m55,877s
user    2m55,136s
sys     0m1,492s
%

[petterreinholdtsen]

I moved to a different location and tested again, and this time it did find several base stations. There must be something with the radio signals available at my original test location that causes problems. I have no idea how to debug such problem. Any clues to spare?