Hits
Simple CW keyer elbug
This is a CMOS 4000 series logic based keyer with Dot priority
post 11 Nov 2024
Projects_Homebrew Links →
Simple 30 meter receiver low power qrss beacons and psk31
That is possible by using a low CW speed. QRS mean reduce your CW speed. With that extra S of QRSS they want to indicate that it is really a very low CW speed
Telephone Remote Control Project
Basically the interface allows me to dial my home phone number and connect my interface with a password after the answering machine answers
Tenner QRP 10m CW Transceiver
Small experimental CW 500mW transceiver using just 5 transistors
The flea a 40m minimalist transceiver
The transmitter is based in the old " Cubic Incher" by AE6C It runs very well. The receiver is really a new idea d>
168
That is possible by using a low CW speed. QRS mean reduce your CW speed. With that extra S of QRSS they want to indicate that it is really a very low CW speed
Basically the interface allows me to dial my home phone number and connect my interface with a password after the answering machine answers
Small experimental CW 500mW transceiver using just 5 transistors
The transmitter is based in the old " Cubic Incher" by AE6C It runs very well. The receiver is really a new idea
23cm Yagi Antenna building Finished antenna at 1275 MHz SWR under 1:1.5 at resonant frequency
50 MHz preamp Gain 26dB with the BFG135 Preamps for 144 and 430 MHz, for 50 MHz, the BFG135a is a cheap transistor and in my view rather strong. It is not easily damaged by static discharge or RF power. FG connection
Interface-for-digital-broadcasts-with-integrated-audio 4-port HUB, with a TUSB2046. With port 1 of the HUB we drive the FT232RL; with port 2 the PCM2904, furthermore, we decided to leave ports 3 and 4 free