Hi, I am trying to receive signal from I-4 satellites of Inmarsat.
I found that I-4 satellites have one global beam with 25 KHz bandwidth and several regional beams with 50 KHz bandwidth. However, I have scanned through frequency band 1525-1559 MHz and haven't been able to find those beams. Anyone has experience of receiving Inmarsat satellites? Which downlink frequency should I tune to? I have tuned to frequencies listed on this website, still without any luck. http://www.uhf-satcom.com/lband/ Setup: - USRP N210 + WBX - LNA with 30dB gain (ZHL-1217MLN) - Iridium antenna (I am not able to get specific antennas for Inmarsat...Iridium is at 1616 -1626.5 MHz and Inmarsat is at 1525-1559 MHz. I have used this antenna to capture signals around 1531 MHz successfully. I guess this antenna would not kill signals from Inmarsat.) Best regards, Cheng Chi
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