vest pocket vhf fm test generator
#VHF
#FM
#test generator
#signal generator
#RF
#frequency modulation
#vest pocket
#portable
#electronics testing
#radio
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Camera VHF Video Transmitter
This is a simple video transmitter capable of transmitting signals up to 50 meters. It can be connected to a camera or other video sources, allowing viewing on a VHF channel analog TV. The transmitter operates on a supply voltage...
Wide Dynamic Range Field Strength Meter
A field strength meter is a useful tool for locating a transmitter. However, a sensitive field strength meter has limitations: it responds to nearly any RF signal entering its input. This characteristic reduces the effective sensitivity of the field strength...
Closed-Loop Automatic Power Control for RF Applications
This is a circuit for Closed-Loop Automatic Power Control for RF Applications. The circuit utilizes a log detector (AD8318) and a variable gain amplifier (VGA) (ADL5330).
The Closed-Loop Automatic Power Control (APC) circuit is designed to maintain a consistent output power...
fm wireless microphone schematic
FM Wireless Microphone Schematic. In some applications, using a microphone cable can be quite challenging, necessitating the use of a cordless microphone, commonly referred to as a wireless microphone. This document presents a wireless microphone circuit schematic that utilizes a...
VHF FM Antenna Booster Circuit
Along with a suitable directional antenna, this high-performance two-stage antenna amplifier for the VHF FM broadcast band will allow for the reception of distant signals.
This two-stage antenna amplifier is designed to enhance signal reception in the VHF FM broadcast band,...
Simple RF Power Meter
Many beginners trying out their skill with QRP TX for the first time have to overcome many problems before they are able to come on the air. One usual complaint is that everything is working fine, but the signal is...
FM (prm) optical transmitter
The basic circuit operates at a frequency of 80 kHz, which is constrained by the combination of the PUT (Programmable Unijunction Transistor) capacitors. The maximum modulation frequency achievable is 60 kHz. The pulse repetition rate is directly proportional to Vin,...
Radio harmonic detection circuit
The demodulation and detection circuit is a radio AM intermediate frequency (IF) signal amplifier that performs two-stage detection using diode Dr. It extracts the audio signal from the IF carrier detection and subsequently sends it to the power amplifier stage....
MC28332 Single Chip VHF Narrowband FM Transmitter Application Circuit
Crystal X1 operates in fundamental mode and is calibrated for parallel resonance with a load capacitance of 32 pF. The final output frequency is produced through frequency multiplication within the MC2833 integrated circuit (IC). The RF output buffer at Pin...