70 cm preamp

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

Halo antenna for 70Mhz - Halo antenna for 4 meters band by IZ5HQB with pictures and assembling instructions

HB9CV antenna for 70 cm - An HB9CV antenna for the 70 cm band in french

DF9CY 11 Element for 432 MHz - A short good performing antenna for 70cm

Random wire Unun - Get all band coverage with a single wire and the icom 703

G3EJS portable antenna for the IC-703 - A portable antenna for 40 20 15 10 and 6 meters operations to be used and tuned with the Icom IC-703

Portable satellite antenna - A project for a portable antenna for amateur radio satellite reception, for 2 meters and 70 centimeters bands

Antenna Measurement Theory - Introduction to Antenna Measurement by orbit /fr pdf file

VHF/UHF Folded Diplole - This is a two element colinear design for vertically polarized radiation. It may be constructed for use on either 2m or 70cm

Sidemount VHF/UHF Antenna - This antenna is designed to be mounted off the side of a tower. Works on 136-153 Mhz range but also on 70 cm band

Walkyworld - The World Largest On-Line Walkie Talkie Museum Vintage Walkie Talkies form the 50's 60's 70's 80's and 90's Find The Ones You Had

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.

K9BAR Bolingbrook Amateur Radio Society - Established in the early 1970's has a Membership of about 50 men and women

W3CMA Tamaqua Wireless Association

WR9ARC Riverland Amateur Radio Club - Repeaters: 146.970 444.475 La Crosse, Wisconsin

WebSDR for VLF and 70 cm band - Operated by Wouter Weggelaar PA3WEG in Delft Holland, it allow reception of VLF and 70cm band to receive satellite signals

Degen Design - Multi band mini quad antennas, log periodic and stacked antenna for 144 MHz and 70cm

Tenma - Cable testers, counters probes multimeters and digital oscilloscopes

DVX Project - Digital Voice Transceiver Project This Project began to explore the use of the DVSI AMBE 2020 voice compression chip and also the ADF7021 single chip VHF RF Transceiver from Analog Devices.

Long Range Wi-Fi - Long range Wi-Fi antennas you can build. Helicals, parabolics, and biquads discussed. How to add external antennas to WUSB54GC and F5D7050 usb wireless adapters for long range connections.

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.

W9JFL Shack - John talk about Yaesu VX-3 as an interesting upgrade from VX-2, other reviews cover Kenwood TH-D7 TH-6A Icom-91A Kenwood TM-D700A Yaesu FT-817 and Icom IC-7000

Yaesu VX-3 Features - A complete product page about the Yaesu VX-3 ultra-compact VX-3R 2m/70cm FM HT Transceiver

Designing Op Amp Audio PreAmplifiers - Design guidelines for Op Amp audio preamplifier circuits by Mike Martell N1HFX

ICOM Soundcard Interface - IC820H or other Icom Radios Soundcard interface for VHF EME use by DF9CY