70 cm preamp

F5DQK Vinecon 6N4 - A dual band antenna for 50Mhz and 70Mhz with lots of pictures and diagrams by F5DQK

A comparison of commercial 4m verticals - Ian Hogan G6TGO has recently tried out two different commercially-built vertical aerials for 4m, and has prepared this article to share his findings with us.

70 Mhz Moxon antenna - A Moxon rectangle antenna for 4m by Ross G6GVI

A centre-fed co-axial dipole for 4m - Easy to setup dipole antenna for 4 meters band by Tony Hawker G4CJZ

A 5-element beam for Four - 5-element antenna, with which G0JJL has worked lots of EU crossband, and won the RSGB Christmas Cumulatives 70MHz section twice in a row.

The YU7EF Duo Band Antenna - The original project of a dual band yagi antenna for 50 and 70 mhz, published on dubus 2/2007 by YU7EF

Four metre whip antenna - A homebrewed whip aerial for 70MHz by m0jrq

Comparison of 70 Mhz antennas - Comparison of 50 and 70 Mhz antennas, commercial and home made projects

X-Beam for 6m 2m and 70cm - X-Beam antenna by K0EMT for 50 Mhz and VHF UHF bands

Flex Antenna - A flex antenna working on 6m and 70cm by K0EMT

The Guanella 1:4 balun - A cost effective current-mode 1:4 balun can be constructed from two lengths of coax, two ferrite rods, some electrical tape, cable ties, a length of PVC water-pipe and some connectors. This form of 1:4 current-mode balun is named after G. Guanella.

Coax Dipole Calculator - An efficient program to calculate dimensions of coax dipoles, or bazooka antennas considering velocity length of different coax cables. Express dimensions in feet/inch and meters/cm. Freeware by VE3SQB

6 element Log Periodic for 50 Mhz - A project by G3SYC of a log periodic antenna for 6 meters band

A Portable Antenna for Satellites - A portable antenna for mode B and J satellites

Handheld Yagi - This is the handheld yagi can be used for working satellites when mobile. Offer 420 - 450 MHz 70cm bandwidth and the worst SWR is 1.3:1

Copper Cactus Dual-Band - Copper Cactus Dual-Band Super J-Pole Antenna Project 2 meter 70 Cm Home brew antenna

GB3CM UHF Repeater Group - GB3CM UHF Repeater Group

South Georgian Bay Amateur Radio Club - an established organization that provides the services of two 2 metre repeaters, a 70cm repeater, VE testing / education, and public service assistance to the Penetanguishene / Midland community

HB9FX Internet Remote Base JN37XH Hochwacht Zofingen Switzerland - Tune and / or listen between 10kHz - 10GHz to professional Online-Receivers as Rhode & Schwarz EK070 or AEG E1900/3, Amateur-Radio-Transceivers, Web-SDR, Digital-Modes, Repeaters, EchoLink, APRS or control Antenna-Switch-Matrix, Antenna-Tuner, SWR & PWR- Control or Web-Cams.

Russian VHF Trophy - For carrying out of bilateral QSOs on band of 2 meters, 70 and 23 centimeters all kinds of modulation. It is authorized to spend QSOs, using all kinds of passage: TROPO, ES, AURORA, MS, FAI, EME, IONO,

Morse Code Master - Highly innovative, audio-visual morse code training software for 'slow' and Farnsworth methods from Stratosoft.

RW3AZ VHF amplifiers page - 2m/70cm GS31B Power amplifier pictures

70 cm Power splitter - A simple accurate power splitter for the 70cm uplink to Oscar 13 by G8EUX

FM Morse Code Keyer - A simple circuit which will generate a 700 Hz tone into any FM transceiver allowing an amateur to practice CW with another amateur on a 2 meter simplex frequency.

2 Meter GaAs FET Preamp - KD9JQ 2 meter GaAsFET preamplifier by KD9JQ