root@sadi:/home/zia/osmo-gmr/utils/gmr_multi_rx# ./gmr_multi_rx --gmr1-dl 978 -a RX2 -S A:0 --addr=usrp2 -T 10
linux; GNU C++ version 4.6.3; Boost_104601; UHD_003.006.002-rc2

Given gmr1-dl ARFCNs:
    978 = 1555.562500 MHz
Required bandwidth is: 31.250000 kHz

Creating the UHD device...
-- Opening a USRP2/N-Series device...
-- Current recv frame size: 1472 bytes
-- Current send frame size: 1472 bytes
-- Detecting internal GPSDO.... Found a Jackson Labs GPS
-- found
-- Detecting internal GPSDO.... Found a Jackson Labs GPS
-- found
-- Detecting internal GPSDO.... Found a Jackson Labs GPS
-- found
terminate called after throwing an instance of 'uhd::runtime_error'
  what():  RuntimeError: fifo ctrl timed out looking for acks
Aborted (core dumped)
root@sadi:/home/zia/osmo-gmr/utils/gmr_multi_rx#

***********************************************************************************************