pmr circuit diagram

WB2HOL Foxhunting beam - Building the WB2HOL foxhunting beam antenna

KGD - Reduced size antenna - A reduced size antenna made of two series resonant circuits with a radiant tube condenser in German

ATV 432 MHz transmitter - ATV 432 MHz AM transmitter schematic

FT-817 DC Circuit Protection - A schematic for a DX circuit protection for the Yaesu FT-817, provides protection from the external power supply overvoltage by DL2LTO in german

Yaesu FT-950 Connections - Yaesu FT-950 – Recommended Interconnection Diagram

Mini Circuits - RF / IF Microwave components DC to 20 GHz

Jaycar Electronics - Jaycar electronics offers electronic kits, components, semiconductors, enclosures, batteries, PMR, transceivers, UHF CB Antennas

Ansoft Designer - Sesign-management environment and circuit simulator for radio frequency (RF) and microwave hardware development

IC-Prog Prototype Programmer - This software package allows you to program all types of serial programmable Integrated Circuits using Windows 95/98/NT/2000/ME/XP

Speech Intelligibility - Articles published by the Radio Society of Great Britain, basic principles, construction of a simple equaliser circuit

PCB with kitchen appliances - Cheap and relatively easy way of making professional quality printed circuit boards at home

Low cost frequency counter - Low cost multifunctional seven digit LCD frequency counter, for your HAM radio shack

DRAKE TR7 Downloads - Circuit diagrams drake tr7, Schaltbilder Drake Tr7, antenna tuners, baluns, and home brew power supplies, dual tone ssb test generator, zweiton ssb test generator, zweiton testgenerator, dual tone test generator by DK4DDS

A simple iambic keyer - Iambic keyer with simple paddles and simple electronic circuit.

Digital Wattmeter - 300nW to 30W - The digital wattmeter project was created for the purpose of measuring power in the range of 300nw to 30w.

144 MHz Antenna Pre-Ampilfier - Electronic circuit and components layout fot this VHF Preamp

50MHz SSB/CW Transceiver - A SSB CW transceiver for six meters band with schematic and block diagram

Signal Source for AO40 mode S - Signal source circuit for 2.4 GHz by sv1bsx

A Homemade Signal Generator - Homebrewing a 3 to 30 Mhz Signal Generator, project and schematic diagram

TenTec Omni VI AGC modification - Modification leaves nearly all of the existing Omni agc circuitry intact, simply add an audio detector which modifies the delay characteristics of the original system by G3IXQ

DRM Demo Receiver - Christoph Petermann DF9CY DRM demonstration receiver project including Circuit Diagram and component list

Bartling RX-40 Receiver - Circuit Diagram and Construction of the Bartling RX-40 Joachim Münch DF4ZS

Regenerative circuit - Wikipedia page about regenerative circuits in designing receivers.

A Bipolar Regenerative Receiver - Contrary to what some radio experimenters think, a bipolar regenerative design can be made to work efficiently

The Modern Armstrong Regenerative Receiver - Ramon Vargas Patron articel on regenerative receiver project