New
70 MHz modification of a MML144/100 by Costas SV1DH
70 MHz low pass filter by Alex IK0VAQ
Big wheel for 70 MHz by Peter OE5MPL and Rudi OE5VRL
Noise and interference from Power Line Transmission/Communication by Nigel G7CNF FT-847 "C" modification and TX IMD comparison by Geoffrey GI0GDP Pre-amplifier for 70 MHz by David G3PTU Active Band Pass Filter for Yaesu FT-847 by Tony CT1FFU Interfacing Icom HF sets with the Spectrum transv. by Alex GD3UMW MMANA analysis of the Vinecom 6N4 antenna by Marcel F5DQK MMANA analysis of the Trident TA4M4L antenna by Marcel F5DQK 50/70 MHz dual band antenna comparison by Uffe PA5DD 160 W MOSFET PA by Geoffrey GI0GDP FT-221R modifications by Geoffrey GI0GDP Antennas A "Hen-Tenna" for 4 m by David G4UNB 70 MHz Yamag antenna by Pino IK0SMG 70 MHz kit for I0JXX's 50 MHz antenna by Marco IW0FFK Vertical half-wave aerials for 4 m by Ross G6GVI A Moxon rectangle antenna for 4 m by Ross G6GVI A "J-pole" half-wave vertical for 4 m converted from a "silver-rod" CB antenna. A "Slim-Jim" half-wave vertical for 4 m made from 300-ohm ribbon cable. A centre-fed "co-axial" dipole for 4 m by Tony Hawker G4CJZ A comparison of commercial 4 m verticals by Ian G6TGO A 5-element beam for Four by John G0JJL 70 MHz Low Temperature Antennas by Popa Ljubisa YU7EF A comparison of commercial 4 m yagis using the MMANA simulator by Marcel Pertus F5DQK Improvements to the YG5-4 antenna by Marcel Pertus F5DQK Transmitters, etc.70 MHz modifications for the ICOM IC-502 by Pino IK0SMG 70 MHz modifications for the ICOM IC-706 by Marco IW0FFK Yaesu FT-847 70 MHz filter simulations and modifications by Marc Vlemmings PA1O Crossband operation with a transverter made easy by Peter Gouweleeuw PA2V A 75W solid-state PA for 70 MHz by Geoff Pike GI0GDP Modification and verification of the FT847 to optimize 70 MHz performance by Keith G4FUF A further study of the spurious emissions from an FT847 on 70 MHz by Nige Coleman G7CNF Measurements on an FT-847 transmitter on 70 MHz by Bo Christensen OZ1DJJ Conversion of the BREMI BRL-200 amplifier to 4 m by Ian M0BCG A home-built low-pass filter for 4 m by Tony Hawker G4CJZ A simple antenna tuner for 4 m by Tony Hawker G4CJZ
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