OTOH, the OP said he was in the US and used EGSM
band option ... huh
... I thought the US was GSM-800 ?!?
There is no GSM-800 option in kalibrate-rtl unless it goes by another
name. I'm not that familiar with this technology.
"-s band to scan (GSM850, GSM-R, GSM900, EGSM, DCS, PCS)"
I tried all the options several times and the only hits I got were
using EGSM.
I am pretty sure what Sylvain meant is GSM850. That's the lower band
that is used in the U.S, see [1].
Kind regards,
-Alex
[1]