Geostationary satellite transponder active

| February 15, 2019

The geostationary amateur radio narrowband transponder on the Es’hail-2/QO-100 was made available for amateur experimental use on the afternoon of Tuesday, 12 February 2019.

The 250kHz bandwidth transponder uses the 2.4GHz band for the uplink with the downlink in the 10.45GHz band and should provide communications over a wide portion of the globe.

Potentially both Brazil and Thailand might be in range from the UK.

Contacts have been made by running as little as 500 milliwatts of SSB to a 1.2m dish.

You can listen to the narrowband transponder from anywhere in the world by using the online WebSDR developed by AMSAT-UK and BATC that is located at Goonhilly in the UK—see

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