Tonight, (Thursday 29May 14) WSPR mode was tried in the club shack once again. There was a good measure of success in receiving, but not yet in transmission. The detailed reports of the stations received were automatically uploaded to the WSPR data base. These are knows as ‘Spots’ and the receiving station known as the… Read More »
Last night at the club ( Thursday 22May 14) we took a quick look at WSPR (Weak Signal Propagation Reporter). This is just one of K1JT, Joe Taylor’s weak signal modes. WSPR (pronounced ‘Whisper’) is a digital mode which provides automatic worlwide propagation reports for your station. These are uploaded to the web by all… Read More »
With the 2n3819 JFET fitted, it was time to test the receiver once again. Final Tuning PSK31 on the 20m band operates on USB. The dial frequency is 14.070 MHz. The shack transceiver was tuned to 14.070 MHz. The tip of a short coax cable, from it’s antenna socket, was held close to the PSK31… Read More »
A recent email issue was the result of an ‘infection’ received and passed on initially by GM1SXX (Al). It has propagated via ‘bogus’ emails containing a link. Do NOT click on the link. When activated this malware automatically emails everyone on your contact list. GM1SXX has cleared the issue on his machine now. Everyone who has received one of the… Read More »
Testing of the PSK31 Receiver has shown that the audio output section is satisfactory. White noise is clearly heard on headphones inserted in the output jack socket. The level is easily controlled by preset resistor R8, the gain control for IC2 (LM386) [1] . With an antenna connected to the board however the PSK31 tones were not… Read More »
The RSGB 20m PSK31 Centenary Receiver Project is nearing completion now. MM6LKG (Arthur) has completed the build. Testing is underway . This project forms part of the practical assessment for MM6LKG’s Intermediate License training. The completed board is shown below. An update on the project will follow soon.
Last weekend, EARS helped the local 1st Elderslie Scout Group take part in the 56th Jamboree-on-the-Air event (JOTA). We set up at the Scout hall with a 1/2 size G5RV for the HF bands, and a vertical antenna for 2m. Both worked very well allowing contacts as far away as Oman and the east coast… Read More »