echolink schematic

Receiving antenna for low bands  ^pop - K9AY loop antenna installed at PA6Z Contest group. This is a receiving antennas for the low bands (160m, 80m and 40m). Include schematics and info on a building the control box, preamplifier and low-pass filter

SWL Receiving Antenna Ideas - Shortwave radio receiving antenna experiments, on 30 and 40 meters band with pictures, schematics and descriptions.

Shielded-Loop Receiving Antenna - Schematics, mechanical drawings and picture of a Receiving loop antenna by N5ESE - N5FC

JR6NJD - EchoLink and web radio

Bromley Repeater Group - Gateway - Website and Forums of The Bromley Repeater Group which has been formed to launch and maintain the new Kent repeater, GB3OK. Located in Orpington and with an ASL of 600 feet, it's predicted to provide coverage over a large area of London and South East England. Also on Echolink node 280040

I-LinkBoards.com - Echolink, EQSO, Echostation, SSTV, WEFAX, PSK-31 other digital sound card modes

Russia ATV Amateur TV - Digital Amateur Television web sited include a D-ATV transmitter, D-ATV receiver, D-ATV modulator D-ATV schematics by RA3TTS

PC4U HF/VHF Mobile amateur station - Describes the author's mobile HF and VHF station setup. PC4U (Mobile) Ham Station HF/V/UHF or via EchoLink PC4U-L

Icom IC-746 mods - Schematics, modifications and manuals for ICOM IC-746

Yaesu FT 857 mods and manuals  ^pop - Yaesu FT-857 modifications, schematics and manuals

Yaesu FT-857D modifications and manuals  ^pop - Modifications schematics and manuals for the Yaesu FT-857D

Yaesu FT 897 mods  ^pop - Modifications, schematics, programming interfaces and manuals for the Yaesu FT-897

Yaesu FT-897d mods - Programming interface schematics for Yaesu FT-897D programming interface, Yaesu 4 pin plug PDF User Manual for Yaesu FT-897D (FT 897 D FT897D)

DRF Technologies - Interfacing and Control Projects for the Hobbyist, Ethernet I/O Board, VA3TO Echolink Interface, Programmable Beacon Keyer Project.

RevLoad - This graphics-intensive program reveals the load on the output of a matching-network, based on measurements of the components in that network. Adjust the network (tuner) for a flat input, measure or look up the network component values and you will immmediately see the R and jX values of the load on the network, presented as both a schematic with the component values and as a Smith Chart normalized to the specified system impedance.

Homebrew 813 Linear Amplifier - 813 Linear Amplifier Project includes many schematics, drawind and assembling construction

G3YXM 500 W solid state amplifier - HF 500 Watt power amplifier schematics by G3YXM

IK5MEN HF amplifier 10-160m. - Italian page including pictures schematics diagrams of an home made linear amplifier using four EL509 in parallel. Output power is about 700W.

6 meters power amplifier - A PDF file containing schematics and instructions to hombrew a power amplifier for 50 Mhz

GI-7 on 2m - Schematic & drawing for a GI-7b 2m linear amplifier

YU1AW-2m-easy build QRO - Schematics and drawings

PICBeacon - CW/QRSS beacon, based on a microcontroller PIC16F84, by Microchip, with only few other components. Schematic and component list available

144/430 Duplexer - Schematics for a VHF UHF duplexer

Microphone connections by G4WPW - Roy G4WPW has collected one of the most complete and interesting pages for microphone connections schemas and wiring. Includes Kenwood microphones schematics as well as Yaesu Icom Alinco Adonis Drake Heil JRC MFJ schematics

CAT & audio interface - Schematics and plans to build a custom CAT and audio pc interface