Hello,
I have managed to get the gr-noaa modules working quite nicely on
HRPT signals
from the NOAA satellites.      I have also attempted to detect strong
signals from
METOP-B and METEOR-M2.    In the case of METEOR-M2, the signal looked
very
much like the BPSK signal from the NOAA satellites, whereas with the
METOP, the
FFT looked qualitatively different.
Based on what I have found on the web, it does not seem like the 
METOP is
“open source.”    But I am wondering about the METEOR-M2.   Does anyone
have (or know of) any experience decoding this AHRPT signal?    My hope
is
that it can be done with a relatively small tweak of the existing
gr-noaa module(s).
Sincerely,
Dan Marlow
P.S.  I attach a false color HRPT image received from NOAA 19 yesterday
using usrp_rx_hrpt.py