Followed the installation process and everything seemed to get installed properly, but there is one problem-- it doesn't seem to be working. I've tried running kal for hours now without seeing any signals. Gqrx works fine and sees signals.. so I'm kind of confused here.

kal -s GSM850 -g 50
Found 1 device(s):
0: Generic RTL2832U OEM

Using device 0: Generic RTL2832U OEM
Found Rafael Micro R820T tuner
Exact sample rate is: 270833.002142 Hz
[R82XX] PLL not locked!
Setting gain: 50.0 dB
kal: Scanning for GSM-850 base stations.
GSM-850:

Also, when I run with debug messages on there's a whole bunch of these spitting out:
debug: error limit: 0.9
debug: error limit: 0.9
debug: error limit: 0.8
debug: error limit: 0.8

Any ideas?