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 »
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)  . 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.