homemade vhf duplexer

MAGLoop Antenna  ^pop - Magnetic loop antenna for 10-30 MHZ, 3.5-10 MHZ, description, construction details, homemade.

VHF TX Loop - VHF Antenna in a lunchbox. The magnetic loop on two metres band Lloyd Butler VK5BR

6dB colinear VHF antenna  ^pop - Building details of a VHF colinear antenna with 6 db gain

2 x 5 delta loop  ^pop - VHF horizontal stack 2 x 5 elements delta loop

A J-Pole for 2-meters and 70-cm  ^pop - An Easy Dual-Band VHF/UHF Antenna from QST September 1994

Some J-Poles That I Have Known - The varieties of twinlead J-Poles and some performance standards, L. B. Cebik, W4RNL

2.4G Antenna - Pictures of 2.4 Ghz antennas, JN1GKZ S-band homemade antennas

East Tennessee DX Association - A club dedicated to DXing (HF as well as VHF/UHF) and contesting.

Radio Audio and sound files - Some tens of very special audio files recorded during amateur radio activities like aurora traffic, meteor scatter, communications with ISS crew and the sound of various transmission modes that you can hear on HF and VHF bands

PROCOM Antennas - Manufacturer of communications antennas, bandpass filters, RF combiners, receiver multicouplers, diplexers, duplexers, RF connectors, RF circulators, RF isolators, RF couplers and SWR meters

Definition of frequency bands - Definition of radio frequency bands, hf vhf uhf etc.

Southern California Repeater Lists - The most up-to-date listing of VHF/UHF amateur repeater stations operating in Southern California.

VHF UHF SHF Toplist - VHF UHF SHF Toplist including DXCC and EME-Initials

G0ISW VHF/UHF DX - Ultimate VHF/UHF DX resource site

HF - VHF Radiowave Propagation Center - High frequecy and VHF radio propagation data, solar and geomagnetic real-time and historic data, as well as forecasts. A comprehensive propagation resource compiled by Tomas Hood, editor of the propagation columns of CQ, CQ VHF, Popular Communications, and Monitoring Times magazines. Solar Weather, Geomagnetic, Aurora, Ionospheric reports via eAlerts and webpage. WAP phone access. Live and educational resources, and more.

Yaesu FT-817 - Yaesu FT-817 Portable QRP MF/HF/VHF/UHF Transceiver, an assortment of technical information

Live MUF - Freeware live MUF calculator by EA6VQ-Gabriel and G7RAU-Dave for live calculating the possible e MUF on VHF during es season via a telnet link into dxc

Homebrew equipment by JR3XUH - More than 40 of equipment; rigs and test devices.

An Advanced VHF Wattmeter - A few modifications greatly increase the utility of a popular QST projec

2m Band VHF antenna pre-amplifier - Homebrew pre-amp for 144-146 MHz amateur band and OSCAR Satellites, using BF981 Dual-gate MosFet. Gain ~15 dB, NF=1dB.

VHF UHF preamp - ON6MU project for a vhf uhf preamplifier

Garex VHF preamp - It is available for spot frequencies in the range 40 - 250MHz, where a typical gain of 26dB can be achieved

Low noise preamplifiers  ^pop - Lot of projects of preamplifies from HF to VHF and UHF by yu1aw

TVI filters - These filters are in use by hundreds of VHF weak signal operators and have been proven to be an effective solution for fundamental overload problems.

Motorola Radius M110 modification - Turn a professional 2m VHF FM PMR transceiver Motorola Radius M110 into an amateur radio