hf tubes linear amp

A magnetic loop antenna for HF  ^pop - Able to cover all frequencies between 3.5 and about 10 MHz, the loop described here is directional, does not require a radial system, and stands just 1.8 metres tall. Most parts needed can be purchased at a hardware shop. The antenna can be put together in an afternoon and requires only hand tools to assemble. It should cost less than sixty dollars to build. by Peter Parker VK3YE ex VK1PK

UHF Associates and WB6ZOD - UHF Associates and the WB6ZOD remote base serve the greater Los Angeles area including Los Angeles, Orange and San Bernardino Counties

XE1YJS Joaquin - Ham radio, Mir contact samples in Real audio, packet and some links

F6CRP Denis Priority listing - Site devoted to weak signal traffic SSB/CW V/UHF meteor Scatter,tropo, aurora, fai, ES homebrew

PA5DD Uffe - VHF & microwave web site

WinLink 2000 - WinLink 2000 employs Stations World-wide to provide an HF/VHF/UHF digital radio Interface into the Internet Email system for the mobile radio operator. Features include binary and graphic file attachments, APRS position reporting and over 340 downloadable WX products. The mode used is Pactor I and Pactor II.

RM Italy  ^{updated  pop} - RM is an Italian company operating in the radio communication field since 1974, main products are: HF-CB-VHF-UHF-Dual Band Amplifier, Power Supply, DC-DC Converters Antennas and more

T.G.M. Communications - MQ-1 four band HF beams 20,15,10,6 meters MQ-2 six band HF beams 20,17,15,12,10,6 meters, beam antennas and Hybrid Quad antennas

Hamtronics, Inc. VHF/UHF FM Receivers - A full line of single-channel synthesized and crystal controlled vhf and uhf fm receivers. Great for repeaters, telemetry, and control applications.

Hamtronics, Inc. VHF/UHF Repeaters - A full line of repeaters, modules to build repeaters, and accessories.

GB3DM - Dumbarton District's UHF Repeater in Scotland

Hot topics and tips - Selections of past Moon-net discussions, with interesting topics

IARU HST Championships - Official page of the IARU High Speed Telegraphy Championships

Ham Radio HF Digital modes - A complete overview of modern digital HF radio operating modes: PACTOR AMTOR GTOR CLOVER RTTY PSK31 HELLSCHREIBER PACKET MT63 MFSK16 THROB.

AMPRNet IP address coordinators - The people listed here have volunteered to issue IP addresses for their areas

Sporadic-E - Short notes about sporadic E influence on VHF propagation

Mirage - Mirage user manuals

Ten Tec Orion II Official page - Orion II HF DSP Transceiver

Scaning The Utilities - Hf, vhf, and uhf utility listening, police frequencies, shuttle, aero, usaf callsigns and many other services

PolarPlot - Freeware antenna software that lets you see what the polar diagram of your rotatable beam actually looks like where it is operating. With PolarPlot you can measure the polar diagram of the antenna and check for abnormalities - compare plots taken before and after changes to the design or location - check the -3dB beamwidth - look at the front to back ratio - see the size and position of the sidelobes.

AirMail - AirMail is a HF radio mail program for sending and receiving messages via Pactor, either via the ham radio system or participating marine or commercial services

Mosh - Morse code freeware by SM6KFY, english and swedish version available

FTBasic  ^pop - FTBasic is a CAT control program for Yaesu radios FT100, FT817, FT847, FT1000MP Mark V and FRG100

70cm GS-23b Amplifier - 1500 watts amplifier for 70 cm band using GS23B /4CX1600U SVETLANA by LZ2US

Fitting a PL259 to a coaxial cable - Quick and dirty method to fit a common PL259 to coax cable