Monday 27 August 2012

USA to Europe on 136kHz using Op32

The path from the east coast of the USA to western Europe on the 136kHz band is a well worn one. There have been many reception reports of QRSS60 beacons from several diehard US experimenters - note that this band is not generally allocated in the USA, but there are several who have 'WD' experimental licences to transmit.

However, the Opera mode has allowed real-time reporting on LF from many different stations with a transmission duration of just 32 minutes for Op32 (8 minutes Op8). A callsign sent using QRSS60 would take typically over an hour, though better signal to noise ratios are possible, at least for short periods.

Last night, W1TAG operated his WD2XES beacon using Op32 overnight and was received twice in the UK just before dawn, despite heavy static from eastern European storms. Details are as follows:

05:01 136 WD2XES de GW0EZY Op32 5064 km -36 dB in Welshpool IO82HO
05:01 136 WD2XES de M0LMH Op32 5146 km -36 dB in Harrogate
05:01 136 WD2XES de G3XDV Op32 5296 km -38 dB in Welwyn, IO91VT

04:29 136 WD2XES de M0LMH Op32 5146 km -39 dB in Harrogate
04:29 136 WD2XES de GW0EZY Op32 5064 km -37 dB in Welshpool IO82HO
04:28 136 WD2XES de G3XDV Op32 5296 km -40 dB in Welwyn, IO91VT

John ran 1W ERP and a loop antenna.