drake w4 wattmeter

Mobile Antennas for 10 Meters - Interesting article on mobile antennas by Cebik, W4RNL

Receiving loop aerial for 1.8 MHz - Bulding notes of a receiving loop antenna for 160 meters band

A Small Loop Antenna for Forty Meters  ^pop - Article on a small loop antenna for forty meters band by Ben Smith, W4KSY

Active Loop Converter for LF - Active Loop Converter for the LF Band by Lloyd Butler VK5BR originally published in Amateur Radio, July 2000)

Harmonic Operation of OCFs - Theory - Up, Up, and Away or Harmonic Operation of OCFs

Amateur Radio at NHC - WX4NHC - Amateur Radio Station at the National Hurricane Center located on the campus of Florida international University

CARMEN Caribbean Amateur Radio Meteorological Emergency Network - Volunteer amateur radio operators (Hams), have maintained a radio station WX4NHC at the National Hurricane Center (NHC) in Miami since 1980.

The SouthEastern Repeater Association, Inc. (SERA) - Welcome to the official Home Page of SouthEastern Repeater Association Inc. SERA is the largest Amatuer Radio Coordination organization in the United States. SERA represents Kentucky, Mississippi, North Carolina, South Carolina, Virginia, Tennessee, West Virginia and Georgia

AF2CW - DX, CW, Propagation, Licensing, Boat Anchors

Remote-Controlled HF Operations - If you can’t get on the air from home, the Internet may provide the answer. By Brad Wyatt, K6WR. Pdf File.

W4RT Electronics - DSP for FT-817, the Antenna BOSS Motorized Antenna Controller for Yaesu Radios, Speech Compressor and more

Telewave - Telewave's innovative engineering produces the industry's toughest antenna systems. Yagi, Fiberglass Collinear, and Dipole models are available from 66-2500 MHz. Wattmeters, test equipment,rf power meters, duplexers, filters and cavities, transmitters combiners

Wavenode SWR and RF wattmeter - The WN-1 is a precision RF Watt, SWR, and DC Meter to digitally monitor your amateur radio and emergency communications stations.

VLF-LF And the Loop Aerial - The article discusses the theory of loop aerials for receiving and how they reduce the level of local noise. A Loop Aerial is described suitable for use on the LF and VLF bands together with a circuit of an interface loop tuner and preamplifier. The discussion extends to the problems of amplifier noise and the advantages of tuning the loop.

Antenna Noise and Signal Cancelling at LF - The fact that the phasing between a wanted signal and an unwanted signal can be different on different antennas is put to advantage. With this condition, the unwanted signal can be cancelled out by controlling amplitude and phase. The heart of the system is some form of phase control circuitry.

PA0CMU - Carel - Dutch amateur radiostation operating QRP, includes some DRAKE informations and homebrew projects

W4QCF manuals - Operating and Service manuals, electronic publications, QSTS, Handbooks,

Ham Radio Manuals by WB2JKJ - Ham Radio Manuals by WB2JKJ - Icom Yaesu Kenwood Heathkit Drake and more!

Icom IC-718 one board filter manual - IC 718 one board filter manual in pdf format

FT-817 Faqs - W4RT Yaesu FT 817 FAQs

W4ZT Modifications for the Kenwood TH-F6A - Extended transmit for TH-F6A and other mods

IC-2720H Extended TX/RX Mod - IC-2720H it will receive fine on 220MHz amateur band, but will NOT transmit there

Shortwave Log (SWLog) - Shortwave Log, SWLog is a comprehensive logging and radio control program. While designed for shortwave and mediumwave listening, the program is quite adept when listening to longwave, utility, or amateur radio. Support Icom Drake TenTec Yaesu JRC and lowe receivers.

W4ATC QRP Project - Beginners making inexpensive, low-power shortwave transceivers from kits.

Antenna Noise and Signal Cancelling at LF - By using the signals from two antennas, controlling their relative amplitudes and controlling the phase of one of them, unwanted signal or unwanted noise can be phased out. Circuitry is described which uses the signal from a wire antenna to provide selective cancelling against the signal output from an LF loop antenna.