47 GHz EHG

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In April 2025 I succeeded in receiving the first signals on 47 GHz EME

On 28 April I received my first signals on 47 GHz EME in a successful decode of DL7YC

On 29 April I again received DL7YC and also DC7KY

In 21 June I received CT1BYM this is first 47 GHz EME receiving between two relative small dishes

Signals were received using a Kathrein CAS120 dish mounted on a Astronomy gearbox

sun noise measured 28-4-2025 @ 11 dB

moon noise measured 28-4-2025 @ 1.1 dB

First decodes from DL7YC 28 April 2025

700 Hz from DL7YC 29 April 2025

WSJT from DL7YC in Spectravue

700 Hz in Spectravue


Decodes from DC7KY 29 April 2025

 


Decodes from CT1BYM on 21 June 2025

Timing was not very good due to restrictions in moon window, a few hours later signal could be 6 dB better
during this reception libration was quite high around 700 Hz

This was a first successful test between two relative small dishes, both using a 1.2 mtr offset dish

After analysing the recordings these were the results

Calculations show that signal would be very marginal

Calculations show that a few hours later signal should be much stronger