Guide of RADIO TRANSMITTER DESIGN
Ramsey Electronics
Hobby kits, amateur radio gear, antennas, AM/FM broadcasters, security and
monitoring cameras, test equipment, and tools. Downloadable catalog [PDF] ...
Back in the 70s it was a flyer that came off the brand new Xerox 660 copier that we were so proud of
today its over 100 pages, in full color, with hundreds of thousands in circulation! Sorry, our COM3 is no longer available, but there is good news! Our BRAND NEW COM3010 is now available! The COM3010 is our brand new service monitor designed from the ground up to give you the best features available at a price that cant be beat All of our close-out products have been priced to move! Now we've dropped the prices even further! One of the products is the for only $329.95! Check out more of the sales in the
All the tools YOU NEED to build your kits! Trust your RF Testing to our Patented Design! The COM3010 is NOW AVAILABLE! Multimeters, Oscilloscopes, and Signal Generators These RF Modules are EASY TO USE! The RIGHT TOOLS @ the RIGHT PRICE! THE ULTRA-RELIABLE FM STEREO TRANSMITTER! Get On-The-Air QUICK With The 50 Watt Station IN-A BOX! Comments, Questions, Answers...You'll find them all here at the Ramsey Bulletin Board! News From Ramsey Kit Ideas, Comments, Complaints, and Non-Ramsey Stuff! Most Recent Additions, Requests, and anything else related to the Web Site Hobby AM-FM Broadcasters, Antennas, and Accessories PX50, PX1, Studio Gear, and Professional Antennas Building Block Kits, Science Fair Projects, Radio Receivers, and General Kits From Blinky Kits to Wireless Link Modules Multimeters, Scopes, Software, and Signal Generators QRP Gear, and Foxhunt Stuff Digital Cameras, Wireless Cameras, and Video Transmitters Welcome Please or
HOMING IN -- Radio Direction Finding
All about hidden transmitter hunting and radio direction finding for radio amateurs.
Links, and local contacts to help find RDF activities in your area.
The September 2005 issue of QST Magazine contains a simple and effective 80-meter ARDF receiver/antenna project for home construction, designed by Dale Hunt WB6BYU of Yamhill, Oregon
Commercial RDF Equipment -- Getting the most from it KØOV's design improvements for the and other "bow-tie" RDF sets
KØOV's design improvements for the
KØOV's design improvements for the set
Who is KØOV? A registered professional electronic engineer and an active Amateur Radio enthusiast since age 11, Joe Moell KØOV has over 35 years of experience designing radio-frequency circuits and systems for broadcast, communications, and radar, ranging from near-DC through microwave frequencies
He has designed new devices for radio direction finding and has written about RDF and other topics for almost every ham radio publication in the USA
They are designed to look good and load rapidly on any browser version and at any screen resolution
Welcome to Audio - Design and manufacture broadcast quality radio ...
Manufacturer of wireless microphone systems. Includes news, technical advice and
listing of distributors.
Welcome to Audio - Design and manufacture broadcast quality radio microphone systems
Audio Ltd design and manufacture broadcast quality radio microphone systems for use in film and television
wireless microphone, radio microphone, uhf systems, frequency agile transmitter, frequency agile receiver, diversity system, body pack transmitter, location sound , Audio design their systems to be flexible
Audio took the approach of taking the frequency agile transmitter same full receiver design with full sensitivity and selectivity, and then duplicating it
W&D - Design and manufacture of high quality specialist radio ...
Manufacturers of radio telemetry, broadcast and security products.
info: RADIO TRANSMITTER DESIGN
Photo by www.rcgroups.com
North Country Radio Home Page
Kits, including transmitters and receivers. Technical articles and information
on electronic subjects geared towards ham radio, shortwave and video projects.
Designed for radio control applications in which size is a consideration
A, C, P, H, X 82.00 Kit Available assembled and tested 0.5W Video Transmitter no audio (New Design)
This unit is based on the ATV12-440 but designed for use in the 902-928 MHz range, which includes the 33 cm
Same physical size and weight as the ATV-MINI-440 but designed for 902-928 MHz operation
Works only on kits designed for operation with AC voltage input
P 9.95 Wall transformer designed for use with our MPX2000 FM Stereo Transmitter kit
Radio QRP - The Art of Low Power and Clandestine Operations
Program schedule and guestbook for this local station.
Spark Gap transmitters
Tesla Coil history, explained through from the days of spark gap transmitters.
Without getting into the theory or design of these Spark Gap Wireless transmitters, let me attempt to give you an over-view of their operaton
In their simplest form, some of the early models' of the wireless transmitters were designed by Guglielmo Marconi a young Italian inventor
Another of the Marconi designs employed a low voltage A.C
Other designs would employ a Rotary Spark Gap, also known as a multiple spark system, which was motor driven
Radio Design Group - How It Works: Radios
Explains the science behind the technology.
Whether it's music, data, television, phone calls or whatever, if it's wireless, chances are it's radio! Copyright ©1996-2001, Radio Design Group, Inc
Benefits
Photo by www.vintage-radio.com
CW Transmitter 6BM8 amateur
radio rig with 8 watts ouput by G0UPL.
Like me, he was using a homemade one-valve transmitter (not the same design as my TX)
G0UPL Homebrew Radio, Electronics & Computers
Many homebrew projects for Radio, Electronics and Computers including QRP HF
Radio, Z80 Computers.
electronics tutorials
Basic electronics tutorials on circuits and components, filters, oscillators and
other applications.
Offering free comprehensive basic electronics tutorials in amplifiers, antennas, ham radio, filters, oscillators, power supply, receivers, test equipment, transmitters, radio design and electronics design
RF CIRCUIT DESIGN - Chris Bowick, WD4C I have never read a better book on RF design
Chris's book is a constant reference for the serious RF designer
My edition of this book has chapters on: Components Wire - resistors - Capacitors - Inductors - Toroids - Toroidal Inductor Design - Practical Winding Hints
Filter Design Background - Modern Filter Design - Normalization and the Low-Pass prototype - Filter Types - Frequency and Impedance Scaling - High Pass Filter Design - The Dual Network - Bandpass Filter Design - Summary of the Bandpass Filter Design Procedure - Band Rejection Filter Design - The Effects of Finite Q
Transistors at Radio Frequencies - RF The Transistor Equivalent Circuit - Y Parameters - S Parameters - Understanding RF Transistor Data Sheets - Summary Small Signal RF Amplifier Design Transistor Biasing - Design Using Y Parameters - Design Using S Parameters RF Power Amplifiers RF Power Transistor Characteristics - Transistor Biasing - Power Amplifier Design - Matching to Coaxial Feedlines - Automatic Shutdown Circuitry - Broadband Transformers - Practical Winding Hints - Summary Appendices on Vector Algebra and Noise Calculations ( Types of Noise - Noise Figure - Receiver Systems Calculations )
WMPG - Greater Portland Community Radio
Community FM Radio. Broadcasting from Gorham and Portland, Maine.
That gives you two weeks to submit your design
Not only will you get the bragging rights but you will also receive the 1st t-shirt printed from the design
All designs must include 'Indi-Revolutions Rock Block' and the time of the show, 'Monday - Friday 3 to 5pm' and 'WMPG'
We will post the winning design along with other submissions on our web page
Like last year's show, this one had a packed capacity crowd viewing original clothing, jewelry and accessories designed by local artists
RADIO TRANSMITTER DESIGN ?
Jim Hawkins' Radio and Broadcast Technology Page
Detailed information on restoration and repair of antique AM radio transmitters.
Historical review of classic AM radio stations.
:: Low Power Radio Telemetry : rf modules : fm radio modules :: fm ...
Manufacturers and distributes low power UHF communications products for video
transmission, remote studio links and two-way communication.
Product Feature easy-Radio 433-4Mhz module eval kit Evaluation kit for use with easy-Radio modules ER400TRS-02, ER400TS-02 & ER400RS-02 433-4MHz FM modules EASYRADIOKIT-02 £65.56* each Welcome Radio modules with embedded software protocols Fast Time to Market No RF design skills needed No setup No communications software to write Features Link budget 112dB, approx
300m+ range European, North American & Asian markets User programmable Frequency, Power output and Data rate Chipcon based design Local sales worldwide | © 2006 Low Power Radio Solutions Ltd
WCWM-FM | Williamsburg, Virginia
Variety radio from the College of William and Mary in Williamsburg.
Friendly fun reminder: the deadline for t-shirt design submissions is coming up later this month (October 15)! 30 September 2006 There will be a show at the Meridian Coffeehouse tonight
8PM $2 (most likely) 21 September 2006 Are you an ad whiz, a graphic designer, and/or sass-mouthed in general? You can probably come up with something great for this year's WCWM T-shirt/slogan contest
The designs should include 'WCWM 90.9 FM' or 'WCWM-FM' somewhere in them, and the slogan should fit on a bumper sticker
Bring your designs or slogan suggestions in to the station before Sunday, October 15 , or e-mail if you have any more questions
WD8DAS Homebrew Transmitter Page
Great article on homebrewing with two 807 tubes, with schematic and description,
by Steve WD8DAS.
Could I do it? Had I finally reached the point where I could fulfill my 'secret dream'? Could I design and build a tube rig using parts already on hand? The first task was to design a simple, effective CW rig using vintage parts
As I perused the journals this idea gelled into a design based on an electron-coupled Colpitts crystal oscillator using a 6AG7 metal tube and a dual-807 power amplifier
Cathode keying is one of the simplest ways to put some intelligence on the carrier, so it seemed the logical choice for this design
Listening on a nearby receiver I discovered key-clicks were not a problem, and while I could hear some chirp it was not as bad as some commercial designs
And it was much better than most homebrew solid-state rigs of similar simple design
For now, the stability is quite good for such a simple design
Antenna design & custom antennas by MEI
Engineering and manufacturing firm specializing in the design and development of
custom antennas and RF electronics from 100 kHz to 26 GHz.
MEI Antenna basic sitemap and antenna links: Antenna design firm and manufacturer of antennas, MEI offers a broad spectrum of antennas for almost every application
Visit our website for a list of our antenna design, development, measurement, manufacturing and turnkey capabilities
Antennas designed, developed and manufactured by MEI include: fixed antennas, mobile antennas aircraft antennas, marine antennas, commercial antennas, military antennas and embedded & portable antennas Should you have a requirement for a Custom Antenna, you are welcome to send us your Antenna Specifications, and we shall be happy to submit a quotation in return
Transmitter Sites from Hell ! RADIO STATIONS studio pictures AM ...
Links and articles about corporate media and low-power broadcasting alternatives.
Sequerra Online Home
High-end speakers and amplification from Dick Sequerra. Factory-direct sales.
Radio, broadcast and recording studio design
Broadcast systems, transmitter design, AM-FM radio design
Design and developement of electro-mechanical test equipment
Fm transmitter
Professional low power FM transmitters, available in Canada and the US.
Includes online store, news and FAQ.
Universal design, suitable for all MP3 and CD players, delivers high-clarity audio performance
FM DIGITAL TRANSMITTER FEATURES Digital design
Power saving design, with ON/OFF button Applications : PCI-Max Ultra Fm Transmitter for your Personal Computer MS-100 Series Professional Fm Transmitters (Part-15) We ship (2-3 day delivery) in the US and (1 day delivery) inside of Canada Copyright © 2002 Fm Concepts All Rights Reserved
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