Genesis G59 Software Defined Radio Transceiver SDR QRP
#SDR
#transceiver
#QRP
#radio frequency
#software defined radio
#communication
#wireless
#RF circuits
#ham radio
#signal processing
No description available.
Tx/Rx Control
This circuitry offers some features that are highly desirable when building a QRP (or ANY) transceiver. It also includes a combination of features that many might not always take the time to include in their projects. Considerable effort has been...
Wireless-fm-microphone
An adjustable capacitor C10 and a coil L1 create a tank circuit that, along with Q1, C2, and R1, oscillates at a frequency within the FM band. The center frequency is adjustable by tuning C10. An electret microphone, M1, captures...
Wireless On-Off Switch
Typically, home appliances are controlled using switches, sensors, and similar devices. However, physical contact with switches can pose risks, especially in the event of a short circuit. The circuit outlined here eliminates the need for physical contact to operate the...
5 W ATV TRANSCEIVER
The transmitter schematic, which is a component of the transceiver, can be found in the entry titled S-W ATV Transmitter for 440 MHz, Figure 5-1. The downconverter section is illustrated here. This transmitter includes both video and audio sections, producing...
40M-cw-transceiver
The unit consists of a direct conversion receiver and a 1-W transmitter. The direct conversion receiver's voltage-controlled oscillator (VFO) is tuned slightly off frequency from the incoming signal. This frequency difference generates a clean, strong, and solid audio tone signal....
Wireless am microphone
The transistor Q1 and its associated components form a tunable RF oscillator. The RF signal is directed to transistor Q2, which functions as the modulator. Operational amplifier IC1 amplifies the audio signal and transmits it through resistor R4 to the...
METAL DETECTOR
When the receiver is tuned to a medium wave radio station, feedback howl caused by the transmitter may occur when the coil and radio are positioned above or near a metal object. The search head is constructed from a margarine...
Wireless-fm-microphone
Transistor Q1 functions as an amplifier for the condenser microphone MIC1. The output from Q1 is fed to the base of transistor Q2 through a 4.7 µF capacitor. Capacitors C2 and L1 form an LC tank circuit, which is utilized...
SEISMIC RADIO 500mHz - 200Hz frequency range
The most popular network is MED-NET, which encompasses the entire Mediterranean Sea with its observation points. The accompanying map illustrates these observation points. For more information about this network, which is part of the Italian Geophysical National Institute, the official...