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SDR Receiver a compact high performance HF software defined radio receiver designed to be used in fixed or portable stations. Version 2 of the receiver is now available. It now has an RF pre-amplifier using a power MOSFET and other revisions to improve it's performance both as a stand alone receiver and as an IF panadaptor with HF and VHF transceivers.

A circular waveguide calculator for designing cantennas include source code and windows executable by lincomatic

This page describes a simple way to determine the main RF characteristics of a Wifi (IEEE802.11b/g wireless LAN) antenna.

An updated version of the ZS6BKW multiband dipole

Summarizes a portion of the FCC rules 47 CFR 80.371(c) and 80.373(f)

How Ham Radio Works, by Gary Brown, Ham radio can be very portable and affordable. In this article, we will look at ham radio and show you how to get started in this wireless world

AEA Wireless Director Software Series turns PC's (running Windows 95/98/2000/ME or NT) into powerful tools that expand the use and power of SWR, Return Loss and Complex Impedance Analyzers.

An easy to build, compact antenna for wireless lan applications that offers a reasonable amount gain.

Fractal Antennas are a new generation of multiband antennas for wireless communications. Based on a new design concept, fractal technology.

Data and telecom connectors, coaxial cables, smart card connectors and wireless cable products

Wireless radios from all eras Operating ham station - W1FGM Rivals museum at ARRL Hq.

What is Family Radio Service? Do I need an FCC license for my FRS unit? Where may I operate my FRS unit?

W3DZZ trapped multi-band antenna, exposed in this practical wireless article

SDR Forum - organization dedicated to promoting the development, deployment and use of software defined radio technologies for advanced wireless systems.

A reliable logging system for Field Day based on wireless networking. Freeware, runs on macintosh, linux and windows

Manufactures and distributes tower and wireless site components including antenna and sector mounts, site hardware, ice bridge and cable tray. Specializing in custom fabrication of work and equipment platforms; all hot-dipped galvanized.

This page will help you answer important questions about antenna selection before you talk to a supplier. After reading this paper, you should be able to better determine the most important parameters you need to know for your antenna selection criteria.

Antenna manufactuer, Panel antennas, sector panel antennas, high gain for ISM, MMDS, PCS, GSM, CDMA, TDMA, 400MHz, 900MHz,1.9GHz, 2.4GHz, 2.7GHz, 3.5GHz,5.8GHz. Broadband wireless applications for ISP,ASP.

Wireless Institute of Australia repeater directory and database, with updates on repeater activities.

AN Wireless is a manufacturer and distributor of Self Supporting Tower Systems for Wireless Communications, Wireless Internet, Wireless Networking, Microwave, Paging, Broadcast, Two-Way Radio and Amateur Radio.

Leading supplier of low and high frequency electronic filter design products for the design of wireless telecommunications equipment, semiconductors and more

APRS over digimodes including PSK, QPSK and GMSK with digipeating and two way HF internet gateway to the APRS-IS

Designers and manufacturers of radio Frequency antennas. HF - 3000 MHz TET Emtron HF Yagis, Antennas for Wireless applications, Marine antennas, Land mobile, Mobile antennas.

Radio Amateurs serving Prince William County Virginia

Article published on Practical Wireless about the W3DZZ multiband trapped dipole antenna made available by GM0ONX

Teaching the RAE with lots of info to help you pass the test For CW, Novice, RAE,.

A wifi remote antenna switch that can be controlled from a smartphone app

A Tribute to Morse telegraphy and resource for wire and wireless telegraph historians and key collectors

Interesting article on multiband fan dipoles. This article give an overview on designing this wire antenna, and planning a robust installation and proper feed line. Includes notes on setting up a commercial fan dipole antenna and on how diy your own.

The Helical antenna description, a simple way of obtaining high-gain and a broad band of frequency characteristics

UK manufacturer of ham radio accessories, including TNX, SDR receivers, RF Diplexers Triplexers, bandpass filters, iambic memory keyers.

A small antenna to improve signal reception of a laptop wireless card. This will boost the gain of your wi-fi card and will increase network speed and bandwidth.

A 915 MHz four bay j-pole antenna plan

Whenever you choose a coax feedline, the frequency of operation is a very important consideration. Over the operating bandwidth of the coax the VSWR is low, typically 1.2:1 or better. Insertion loss is also an important parameter. It is usually specified in dB/foot and is a linear relationship.

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

Makers of universal digital rotor controllers including wireless controllers

Manufacture LMR Flexible low loss coax cable, connectors, and cable assemblies for Wireless Communications applications.

This calculator can be used to estimate the attenuation (dB loss), power handling capability, and transmission efficiency for some of the more popular Wireless Communications and MIL Spec cables at the frequency of interest

Call sign systems vanity questions by FCC

Amateur Television products, online store for ATV transmitters receivers, LCD controllers, wireless cameras, video senders, accessories, power amplifiers based in UK

Microwaves articles, The Technology Voice of the Wireless World , need registration to access

We are committed to constantly improving our solutions in areas of GPS System, GPS Receivers, GPS Antennas, GPS Dataloggers, RF Modules, Wireless Security Systems, Automatic Vehicle Location (AVL) for real time and passive tracking

A 10 elements quagi antenna for the 900 MHz band

UK based vintage radio club

Harvard wireless club, harvard's amateur radio or ham radio club. founded in 1909. welcome to harvard affiliates, alumni, prospective students, and their parents, as well recent contacts. information about club getting started radio. confirming contacts qsl. flea market. history.

Modifying consumer off the shelf wireless LAN devices for specialized amateur use

This page is dedicated to amassing information on the Tentec/Globe Wireless RX-321/RX321

Extend the range of wireless network or connect to other wireless networks in neighborhood with your own wifi antenna.

The BP-3 was a valve-based spy radio transceiver, developed during WWII by Tadeusz Heftman of the Polish Military Wireless Unit in Stanmore (UK). It was introduced in 1943 and was intended for use by Agents and Resistance Organisations in Europe. The transmitter produces an output power of 50 Watts in CW

Telecom Product Profiles is a manufacturers' rep firm specializing in factory direct Nello Towers, monopoles, antenna mounts, shelters, and more. Factory direct Cellular, PCS, and Wireless Broadband equipment such as antennas, radios, and more. Installation, financing, and leasing options available.