The world's first 76 GHz EME QSO took place on April 22, 2026, between RW3BP (KO85) and DL7YC (JO62).

[Cowles Andrus]

Hi All,

In case you missed it a QRP, at least on one side contact was made yesterday via EME on 76GHz.

Thought it was interesting and wanted to share!

Best Regards,

Cowles K4EME

Copy of email below:

Von: ploetz <plo...@snafu.de>

Datum: 23.04.26 15:51 (GMT+01:00)

An: Moon-Net Digest <digest...@groups.io>

Betreff: World's first 76GHz EME QSO

The world's first 76 GHz EME QSO took place on April 22, 2026, between RW3BP (KO85) and DL7YC (JO62). 

Sergei utilized a 2.4m offset dish paired with an 8.2-watt SSPA and a 2.4 dB NF LNA. 

Manfred (DL7YC) employed a 2.4m prime-focus dish with a 5-watt SSPA and a 2.5 dB NF LNA. 

The transmission mode used was Q65-60E, during which "single decode" reports of -14/-15 and -17, respectively, were exchanged. 

A unique feature of this operation was that, due to the high losses at 76,003.210 MHz, no antenna relays were utilized; instead, the receivers and transmitters each employed separate feedhorns that were "slid" into the focal point with an accuracy of 0.05 mm.

Best regards

Sergei, RW3BP

Manfred, DL7YC