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Scott's Crystal Radios and Antique Headphones - Dedicated to Crystal Radio enthusiasts, both users and collectors. Lot of info on antique headphones,crystal radios,earphones,headsets.

Art's Antique Radios - A good reference site for antique radio, bakelite paskon plastinc decription, microphones picture and antique radio gallery

K5ZD contest audio live - During some of the serious contest operations from K5ZD, we will enable live audio streaming direct from the headphones

ARRL Int. DX contest results - International ARRL DX Contest score records, phone recods

W7MOT - W7mot is the official site for marca, inc. marca is an organization for amateurs radio enthusiasts who are interested in sharing and persuing thier interests in the field of rf. marca has members primarily located in arizona with members from the greater phonex, scottsdale, mesa, chandler, gilbert, and tempe areas.

Ontario Swap Shop - The Ontario Swap Shop Club is a place where Canadian Hams can record their e-mail address or phone number where it will always be available to fellow other Canadian hams even if you have nothing currently listed on the swap shop.

The ElectraSlide Antenna - Modification of the DK3 design by Don Johnson, W6AAQ. No voltage dropping, operates on the full 12 volts. The control switch and the matching toroid are supplied. All you need is a standard 3/8 by 24 thread ballmount, 2 wire sheilded microphone cable for control wiring, and a CB whip cut to resonance.

Behringer - High quality audio systems

W&W Batteries manufacturer - U.s.a. manufacturer of replacement radio batteries, battery packs, inserts, chargers, analyzers, and battery eliminators for the public safety, land mobile, amateur radio and cellular phone industry.

TowerWorx - Mobile and portable towers for the use in temporary cell phone coverage, military use and mobile communications for surveillance and emergencies

Nicola Tesla autobiography - Free pdf book on Nicola Tesla. He is the true unsung prophet of the electric age; without whom our radio, auto ignition, telephone, alternating current power generation and transmission, radio and television would all have been impossible

GM Mobile RadioInstallation guidelines - GM Radio Telephone / Mobile Radio Installation Guidelines

MobileMorse - MobileMorse is a program written in java that is supposed to help you learn morse code. It is supposed to run on henheld devices like mobile phones with java.

UK Repeaters for iPhone - UK Repeaters is an iPhone app that shows all UK Based repeaters on a map. Each repeater information is shown to allow easy access and programming of your radio

Batterytech - Buy nimh, ncicad, and li-ion batteries, chargers, and analyzers for laptops, pdas, digital cameras, cellular phones, nextel radios, hand held scanners, and eliminators

DTMF decoder - A very easy to use program to decode DTMF dial tones found on telephone lines with touch tone phones. The DTMF Decoder is also used for receiving data transmissions over the air in amateur radio frequency bands.

Worldwide City Information Reference eBook - Phone prefix, time zone, latitude and longitude for major cities all over the world

Alphabets - Phonetic Alphabet and Morse Code eBook - Palm OS reference tools

CwGet PPC Priority listing - A program to decode Morse code via sound input of PDA to text. No additional hardware required - your need only receiver and PDA with sound input. Built-in microphone of device can be used also.

SATme - Satellite tracking for a Java-enabled mobile phone, Blackberry device, PDA.

iLocator for iPhone - A small application for Apple iPhone that calculate grid locator from gps, wifi or gsm cells by IW2BSQ

Audio processor for SSB transceiver - This circuit consists of microphone amplifier and a high pass filter. Suitable to improve signal readability.

Choosing a headphone for 160m - Weak Signal Audio 160m, choosing a headphone for weak signals reception

Home Brew a Condenser Microphone - An inexpensive condenser microphone with excellent performance can be easily constructed with easily available parts.

Microphone connections by G4WPW - Roy G4WPW has collected one of the most complete and interesting pages for microphone connections schemas and wiring. Includes Kenwood microphones schematics as well as Yaesu Icom Alinco Adonis Drake Heil JRC MFJ schematics