Wireless Set No 19 Group WS19
No description available.
40 meters CW Transceiver
This project describes a little QRP transceiver full legal power (5 W at 12 V) for the 40 meters band. The RIG may be built in a gradual manner; in fact, it is divided into two main modules, or you...
Wireless remote control switch circuit 5
The wireless remote control transmitter circuit consists of control buttons S1 to S16, resistors R1 to R3, a capacitor C1, a regulator diode VS, a crystal oscillator BC1, and DTMF encoder integrated circuits IC1 and IC2. The circuit components are...
Shorty Forty Antenna
City dwellers and other flat dwellers know the practical difficulties they encounter when they try to put up an antenna for 40 meters. Finding space enough to accommodate 67 feet of wire is a real problem for them and most...
Antenna Tuning Unit
A simple passive circuit is designed to match an antenna to a radio receiver without requiring any power. This circuit is beneficial for shortwave listeners and can also utilize a medium wave coil to tune into the medium wave band....
PA1B-02 page of VERON department Nieuwegein and surroundings
Information for radio broadcasting and amateur listening in the VERON department of Nieuwegein (A29) and surrounding areas.
The radio broadcasting and listening activities in the VERON department of Nieuwegein (A29) encompass a variety of amateur radio operations, which serve both hobbyists...
100 MHz RF oscillator with ATtiny12
A frequency reference for tuning up the RS-232 to 100 MHz RF desktop channel adapter elsewhere on this site, when I found this Saronix crystal oscillator in my junk box. A few minutes with AVRStudio produced an ATtiny12 to make...
Car Wireless Alarm
This FM radio-controlled anti-theft system can be used with any device operating on a 6 to 12-volt DC power supply. The mini VHF FM transmitter is installed in the vehicle at night when it is parked in the driveway or...
Antenna Booster for FM AM and SW Receiver
This AM/FM antenna booster circuit amplifies the broadband signal from the antenna. This antenna booster is designed to work for FM, AM, and SW receivers.
The AM/FM antenna booster circuit is an essential component for enhancing radio reception across various...
Dave Richards AA7EE
As a follow-up to the previous post, it was discovered that the Sony SRF-59, although inexpensive, offers surprisingly good performance due to its creative receiver architecture. Research was conducted on external antennas to improve reception of weak stations. Among the...