New 241 GHz record (via F1VL)


Neil Smith G4DBN
 

Tks F1VL on hyperfr-ref for this news snippet from DB6NT and DK5NJ. Marvellous stuff

Neil G4DBN

https://www.youtube.com/watch?v=eVJC4lfpyuo

New IARU R1 record on 241 GHz. QSO 6 March 2020, 17.10 UTC between:

DK5NJ at JO50TI29JN 690m ASL Schwedenwache (DK0NA) and DB6NT at JO60GJ03MN 896m ASL Aschberg (Saxe).
Distance 63.987 km.
Reports 559/599.
Temp -1C, RH 45%.
Both receivers used a sub-harmonic mixer drive by a 120 GHz LO
Transmit power 20 mW
Both ends used 40 cm dishes with a gain of 57 dB and a beasmwidth of less than 0.25°
This was a line of sight path, and alignment was done using riflescopes
Signal strength was around 30dB over noise, suggesting the possibility that 100 km could have been achieved under those conditions.

Join UKMicrowaves@groups.io to automatically receive all group messages.