DL2CH transmitter and optical sensor
Testing optical communication ...
Today there was another DUR activity contest and i used it to test some equipment. Because the OK/OM activity is in parallel i tried to setup my 2m Tonna yagi. Surprisingly this was a easy job. The only problem was that asseble the antenna took much longer than expected.
The activity on 23cm in the DUR test was low. I had 5 qso only. But i did some qso on 2m as well. ODX was a 9A station. I also heard a french station and some german’s calling a EA station. Maybe some sporadic E ? I did not hear anything from Spain.
For 23cm i have to build a bigger antenne until the next test. The single hybrid quad element is only good for some local qso.
DH5YM in JO61RB
all the equipment
After long time thinking about it i started to build up my laser station i edged the PCB´s today. The parts are on the way from the distributor. The diodes are already available here (2x 10mW, red). I also buyed some lenses in the past week. The biggest problem seems to be the mechanical fixture for fine adjustment of the direction of the 3 different optical axes.
Laser TRX PCB´s (DL2CH Design)