Sunday 12 August 2012

Op32 test on 137kHz

Last night I ran an overnight test using the Opera32 mode in which a callsign takes 32 minutes to send. I was joined by Stefan, DK7FC, and there was much receive interest from other countries.

DK7FC managed reports from RN3AGC, RW3ADB, RX3DHR, TF3HZ, W1TAG, W1VD and YO/4X1RF. The distance to W1VD was a new distance record for this mode on 137kHz at 6096km. He was also received by an experimental Russian team, RD4HU, who were running a 1km long receive antenna.

My own results were less spectacular as I run much less ERP than Stefan, but my best reports are shown below. Note that where these stations reported my signals several times, I have just shown those with the best signal / noise figure.

07:24    136 G3XDV de GW0EZY Op32 233 km +1 dB in Welshpool IO82HO
                  [Decodes all night]
04:00    136 G3XDV de PA3ABK Op32 338 km -14 dB in Dordrecht
                 [Decodes all night]
02:22    136 G3XDV de TF3HZ Op32 1858 km -26 dB in Reykjavik
                  [6 decodes between 0043 and 0254UTC]
01:16    136 G3XDV de RX3DHR Op32 2582 km -38 dB in Zaraysk
                  [1 decode only]
22:58    136 G3XDV de RN3AGC Op32 2483 km -35 dB in Moscow
                  [3 decodes between 2258 and 0149UTC]