accurate voltage referen

Comparison of Beverage antenna - A ranking of receiving antennas based on noise being evenly distributed in all directions. These rankings are most accurate in the frequency range of AM broadcast, 160 or 80 meter bands

SWR: Maximum allowable VSWR - VSWR (voltage-standing-wave-ratio) represents the degree with which an antenna is "matched" to the system impedance. Most modern antennas do not require any tuning for optimum performance. VSWR is one of the easiest parameters to measure and VSWR meters are becoming very popular antenna installation tools

Transmitting Antennas For HF Broadcasting - This paper discusses a number of common used HF transmitting antenna systems and corresponding reference antenna codes. The latter was developed in close consultation with regional coordination groups ABU-HFC, HFCC-ABSU.

IOTA Groups and Reference Numbers - Short Format List of IOTA Groups and Reference Numbers

Richies Shack Priority listing - Richies Shack has a collection my Ham Radio for sale as well as being an Amateur Radio reference site. Ham News, Radio News, ham radio forum, links page and classified ads area.

WP3C web site and DX Reference - Ham radio personal page with links to dx resources

RF Cafe - Amateur Radio Links - RF Cafe is a unique portal of RF, microwave, wireless, and other engineering resources. Vast collection of equations, references and conversions for electrical, mechanical, physical, and mathematical fields.

Jefferson County New York Live Scanner - Live Police Fire Rescue scanner for Jefferson County, New York.

American Technical Resources - Heavy Duty Surge Suppressors, telecommunications protection, industrial twist lock enabled equipment all voltage, phase and frequency ranges

Frequency Calibration for Weak Signal Work - Accurate calibration of your receiver and sound card is necessary for good results with the weak signal modes in use at LF. Modern receivers with master oscillators that are synthesized to provide all conversion frequencies greatly simplify the process. This article describes a method of making the necessary measurements and adjustments to an ICOM R75 receiver and a sound card, using the ARGO software

Packet Radio Training Course - Reference Manual developed by the Ventura County ARES AREA 6 Training Group

Ft1000mp ARRL reference page

Yaesu VX-150 - wiki page - Radioreference wiki page for yaesu VX-150

VX-5R Radio Guide - This reference site is dedicate to the Yaesu VX-5R

Tealinfo reference for Yaesu VX-5R - TealInfo Reference for Yaesu VX-5R, software for PalmOS

The Radio Reference - RadioReference.com, scanner frequency and radio communications reference source, with complete conventional frequency assignments, trunked radio system information, frequencies, and talkgroups, FCC License assignments and maps, 10-Code Lists, agency maps, files, downloads, links, and detailed agency information for most public safety, military, and local government activities.

The DX Handbook - Free huge and reliable BCL reference for shortwave enthusiasts. Includes a large schedule list diveded by bands. Is mainly in italian, but schedule listings are easy to understand. Edited by Enrico Oliva

Kurdistan Regional Government - News, progress reports, reference material and cultural features from the The Kurdistan Regional Goverment

XLZIZL by AC6LA - XLZIZL is an Excel application that analyzes the components of an antenna feed system, including transmission lines, stubs, baluns, and tuners. Calculations include impedance transforms, SWR and reflection coefficient, power loss, voltage and current standing waves, stress on tuner components, network attenuation (S21), and return loss Analysis results are available in worksheet format and in five different chart formats, including Smith charts.

AFU Knoppix - The AFU Knoppix CD contains software for the operating modes of PSK31, RTTY, SSTV, FAX, APRS and packet radio. Additional applications for Sat tracking, logging, locator referencing and antenna computation are also included. The CD is targeted for radio enthusiasts, the Linux operating system and the applications on this CD are structured so that they can run from the CD without effecting the installed existing system software. *

FNpsk - The FNpsk program provides for accurate message handling and net management of amateur radio emergency communications using the PSK31 or PSK63 digital formats

FlyOver - FlyOver predicts satellite fly-over times and helps you spot it. FlyOver uses the same kind of equations that NORAD uses, so it's extremely accurate, too

Why grounding - Overvoltage protection, Voltage stabilization, Grounding in wiring, Ground wire resistance

Amperion Inc BPL tests - Amperion Inc. issued an announcement that it has successfully tested its broadband powerline (BPL) technology over high-voltage, 69,000-volt transmission lines.

A 80/40m Direct Conversion HF Receiver with DDS VFO - Juha (OH2NLT) and Matti (OH7SV) have designed JUMA-RX1, an award winning 80/40m direct conversion HF receiver with highly accurate direct digital synthesis VFO. The receiver is very compact, because it constructed using surface mount components. No coils need to be wound to construct this receiver!