acars frequency hou

From Transmitter to Antenna - A collection of articles on the subject of impedance, impedance matching and high-frequency power transmission by G3YNH

HF insulation, the pitfalls - Although insulation may seem relatively insignificant in the larger picture, on it depends the quality of your performance on air and how long you will be communicating for.

Earth Systems - In order to resonate at a particular frequency, an antenna needs to be at least one half wave length long. Antennas below a 1/2 wave are dependent on a ground system for resonance as well.

Great Lakes Lighthouse Award - Contact Award certificate is for any Licensed Amateur or Short Wave Listener. We award this certificate to applicants who can verify contacts with a minimum of 7 Great Lakes Lighthouses/Lightships. The Activators Award is for any Licensed Amateur who activates 5 Great Lakes lighthouses/lightships.

Ham Bands - Simplified U.S. frequency allocations table by K8ZT

W8CDZ Copper Country Radio Amateur Association, Inc. - Serving the Copper Country in Michigan's Western Upper Peninsula. Copper Country communities include Calumet, Copper Harbor, Lake Linden, Houghton, Ontonagon, Baraga, and other nearby towns.

Albany scanner - Albany live radio scanner

RFS - Radio Frequency Systems (Formerly Celwave, Cellwave, Cablewave),Wifi antennas, duplexers.

NUE-PSK - NUE-PSK Digital Modem A digital modem for PSK31 field operation, without using a PC

Lightning Protection International - LPI personnel have combined experience over many years in servicing customers throughout the world. Our experience covers projects in some of the most lightning prone areas.

FMI - FMI provides superior solutions in the design and manufacture of frequency control devices including Voltage Controlled Temperature Compensated Crystal Oscillators (VCTCXO), voltage controlled crystal oscillator (VCXO), Temperature Compensated Crystal Oscillators (TCXO), crystal clock oscillators, high temperature oscillators, surface mount and crystal oscillator products, phase locked sources and more.

Digital ATV in simple terms - This article was first published in CQ-TV issue 208. Author try to explain digital television in layman’s terms and without getting too involved in mathematics.

Frequenzdatenbank.de - Frequency database for Germany. Emergency services, aircrafts, radio and paging system with over 2000 frequencies from all over Germany.

Suomen taajuuslista 2000 - DB Frequency Site From Finland. In Finnish

House of Batteries - House of Batteries is a master distributor and custom battery pack assembler for every major battery manufacturer in every battery chemistry for every electronic application

Live Shortwave Radio Schedule - Dynamically generated shortwave radio schedule. Updated hourly, easy to read and use.

KG-ACARS - Free to use VHF ACARS-decoding software. KG-ACARS works with most handheld scanners and No complicated tunig is required.

TNC - The Packet Terminal Driver program is a general purpose communications package for communicating with a packet TNC attached to your IBM-PC/clone. The program was written to work with the Kantronics range of TNC's but should work with any TNC that is connected to a serial port on your computer.

Enable Low Cost RF Power Amplifiers - A new paradigm for low cost, reliable RF amplifier ‘pallets’ has been enabled by new circuit design, manufacturing and thermal management techniques

Remote Control of Mast Mounted Equipment - This article presents a method of controlling preamps, antenna switching and polarization switching remotely without the use of control cables.

A Rugged compact attenuator - This attenuator is worth your attention. Built like the proverbial brick outhouse, it's one you can easily duplicate by N9SFX Pdf file

Legendary microphones for ham radio - Graph of the frequency response of some of the legendary microphones favoured by radio hams

Battery Equivalents - Cross reference thousands of consumer, watch and Amateur Radio Handheld batteries

Build A 30W 50 Ohm Dummy Load - For testing out transmitters every ham should have a dummy load, here is explained a 30 watt 50 ohm dummy load

SDR-908 Portable SDR - The SDR-908 is a software defined radio designed specifically for portable use, without the bother of being tethered to a PC or soundcard for the modulation/demodulation processing performed in this kind of radio.