kenwood trc 70

Four over Four for 144MHz - This article describes the 144MHz horizontally polarised antenna at VK1OD in November 2008. The antenna uses two identical four element arrays that were constructed around 1970

Trapped dipole for 40 80m - I0SJC trapped dipole for 40 and 80 meters, traps done with 170 turns 1 mm diam, on a 3.2 mm cilinder in Italian.

7elements yagi for 70MHz - 7ele homemade DK7ZB yagi for 70MHz

Dualband yagi for 50 70 Mhz - PA5DD version of the dual band yagi antenna for 50 and 70 Mhz

GW8IZR - A simple 70MHz antenna - A simple way to make a four metre antenna

Dual band 6m/4m Yagi - This antenna was optimized with the goal to minimize any changes in 6jxx6 impedance/lobes. The result is a 7 el on 70 MHz with a little loss of gain comparing with the other monobands of the same lenght.

YU7EF Pop 6 & 7 Elements antenna - YU7EF Pop 6 elm for 50Mhz and 7elm for 70Mhz, a 4+6m douband with 12mm Alu tubing

Moxon antenna for 432 Mhz - A practical example of how to build a moxon antenna for the 70 cm by SM5JAB

AO-40 70cm Uplink Antenna - Homebrew satellite antenna by G6LVB

G0FTD's experimental INDiX antenna - This antenna is meant to be hung indoors within a window frame for those who can't get an outdoor antenna erected. Plan include dimensions for 50mhz 70Mhz and 144Mhz

VHF UHF European Beacons - MMMonVHF maintains the data for 6m, 2m, 70cm and 23cm bands in collaboration to LA0BY. This site allow display of a beacon map and latest beacon spots.

DK9SQ Antennen - Walter Spieth Antennen offer, Duoband-Portable-Log. Periodic 2m/70cm, Vertical-Loop-Antenna,10-40 Meter and PortableW3DZZ-Antenna as well as fiberglass tubes

Kenwood TM-G707A Motorcycle setup - "Rob" Roberts - KH7MW 2001 1800 GoldWing

Acom 1000 70 Mhz modification - ACOM 1000 modification uses electric band switching, such that both 6m and 4m operation can be maintained.

TS-820 - adding the WARC bands. - Adding warc bands to the kenwood TS-820

Boom microphone - A boom mic for the Yaesu FT 897 857 and IC-7000 done modifying a cheap PC headset by G8JNJ PDF File

ICOM IC-706MKIIG Tech Note - If your IC-706MKIIG will not power up without even hearing a relay click, check the state of the HV line.

Kenwood TS-2000 LED Backlight Conversion - If the display lamps in your TS-2000 go out. They can be replaced with LEDs.

EB5AGV Kenwood TS-850S repair - TS-850S typical faults and solutions

Cupeles Electronics LLC - Two way radio communication services for Kenwood Icom Yaesu radio and ameritron drake cliperton henry heathkit amp yaesu kenwood linear amplifiers based in Harrisburg, PA by WB3M

KENWOOD TL-922 Modifications - Allow 9 bands and 1300 Watt output on the TL-922 amplifier with this document by PA0FRI

Diplexer 2m 70cm - This DIPLEXER separates 2m from 70cm on the same coax cable, and allows to use 2 antennas over the same cable and permits transmission on one band and simultaneous receiption on the other band by hb9abx

Diplexer for 2m and 70 cm - Schematics of a homebrewed diplexer for VHF and UHF in german

Low Pass Filter Construction - Low Pass Filter Module Construction Manual

Lightning Protection : Protecting each I/O line - KB22UT Article on how protecting ham radio station and in particular I/O Lines such as AC power, coax cable, control circuits, telephone line.