L-band Archives - Supermikko

L-Band Satellite Signal Exploration with RTL-SDR and Patch Antenna

By Supermikko|2026-03-06T22:36:44+02:00March 6th, 2026|Categories: Frequencies, Radio, Space|Tags: gnss-sdr, gps, Inmarsat, iridium, L-band, raspberry-pi, rtl-sdr, sarsat, satellite, SDR|

Today I spent some time exploring the L-Band spectrum (1500-1700 MHz) using an RTL-SDR dongle connected to an L-Band satellite patch antenna on a Raspberry Pi. The setup is simple but effective for receiving various satellite signals including Inmarsat, Iridium, GPS, and COSPAS-SARSAT search and rescue transponders. Hardware Setup RTL-SDR with [...]

Balcony antenna setup for VHF/UHF/SAT bands

My balcony antenna setup for VHF, UHF and SAT bands. I receive LEO-satellites on 145 MHz and on 437 MHz and undecoded traffic on Military Air band on 240-380 MHz. On L-band I receive Air Traffic ACARS-messages and ships STD-C messages and EGC/LES data traffic from Inmarsat(Alphasat) satellite. Every now and the I also [...]