New experiments in 2017 with my 50 cm dish and DL0SHF
In may 2017 I was visiting CAMRAS and I took my DL0SHF 10 GHz setup with me for demonstration
My very small dish in front of the 25 Mtr dish from CAMRAS
Next to my visit at CAMRAS I setup my system and tried to receive DL0SHF beacon,
I still wanted to do some measurements on DL0SHF so I decided to set it up the next day at my home QTH for some tests.
Outside temperature was still hot, but I had enough opportunities to put parts of my system into the shade.
I started with adjusting my antenna using the sun and solar noise, then I turned the dish to the moon and looked for DL0SHF.
It always takes some time to find the DL0SHF signal when its transmitting normal (low) power (50 Watt)
After a while I found the beacon and signal seemed a bit low with very much QSB.
Later that day signal improved a bit to max 7 dB above noise in 12 Hz RBW
The CW beacon 5 dB above noise in 12 Hz RBW, audio signal was just audible but too weak to copy
Since my last experiments the digital mode from DL0SHF changed from JT4 to QRB-D so I had to install the new WSJT-X software and first learn to use it before I could try and decode the Dl0SHF signals.
I recorded the received signals and tried to decode the signals the next day, after some fine tuning on time and RX frequency I succeeded in the decode.
I made a test with Charlie G3WDG to see if I would be able to copy his CW signal.
His CW signal was audible and sometimes I could copy his signal.
He did send me some unknown information which he later said it was A TMO report. I was almost convinced I copied a M several times so I told him I copied an M but that it was very weak and difficult. He then confirmed that it was correct.
The QRA-D signals from Charlie also decoded after the recording and that worked also very well.
A test with WA3LBI failed probably because he was using CP as polarisation
causing 3 dB extra losses,
It is possible to copy the CW signal from G3WDG (100 W in a 3 Mtr dish)