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Archive of posts filed under the Amateur Radio category.

Antenna-amplifier with BFT 12 for FM-range

The only way to improve the reception of FM-signals or particularly of stereo FM-signals under disadvantageous receiving conditions is to amplify the antenna signal. This should be made directly at the antenna, since the loss is increased meter by meter of any cable. In most cases higher line attenuations can be expected than usually calculated. [...]

WB4HFN Amateur Radio Website

The vintage radio equipment from the R.L. Drake Company. Life before solid state devices,..vintage radio equipment from the Collins Radio Company. Featuring the “S” Line radio equipment from the 1960’s and 70’s era.

WB4HFN Amateur Radio Website
Antenna construction, digital communications, operating tips and practices to handling CATV interference
Amateur Radio And Resource Information
Heathkit Vintage Amateur Radio Equipment
One [...]

Alan Yates Laboratory – vk2zay

Alan Yates Laboratory – vk2zay
“I was born in the late 1970s, mid-year in the local hospital of a coastal part of Australia? Yet another instance of humanity, one of the 6.6 billion or so of us (4.2 billion back then). Doomed like all of us to live out their days on this rock with some [...]

TK5EP – Antennas and Measuring Devices

TK5EP – Antennas and Measuring Devices
TS850’s heaven Almost everyhting you wanted to know about the TS850. Schematics, mods, repair informations, and much more. A remote interface compatible with the original IF232 with opto-electronic isolation is also described.
Gain chart – Made with help of F5BU’s software GALVA, this small chart will help you to [...]

Lars Petersen OZ1BXM QRP Denmark

Lars Petersen OZ1BXM QRP Denmark
Amateur radio homepage by Lars Petersen of Holstebro, Denmark
CW, QRP, and satellites.

Five good rules for the QRPer
The Rock-Mite transceiver
PIC experiments
Main HF rig and antenna
Satellite radios

LA5EKA Gisle J. Bjoerneseth Radio Amateur

Why learn the Code ? By LA5EKA, Gisle J. Bjoerneseth This article is also posted on EHam, in the Norwegian “Amatoerradio” magazine April 2003 edition and in the MVARC April 2003 newsletter, Ye Olde RF Output.
LA5EKA Gisle J. Bjoerneseth Radio Amateur

N5ESE – Gizmos for QRP Ham Radio

N5ESE – Gizmos for QRP Ham Radio
At “GIZMO’s” page, where you’ll find over a dozen weekend projects that are tailor-made for the QRP homebrewer. (#17, below)

N5ESE’s Version of the W8DIZ Frequency Reference
“Dieter Gentzow, W8DIZ, of Kitsandparts.com provides an inexpensive ($17) kit that generates a trimmable, crystal-based signal of reasonably good stability for use as a [...]

VE7BPO – Amateur Radio and Electronics

VE7BPO – Amateur Radio and Electronics

LEDs Page
How to Learn Hobby Electronics
VE7BPO has a way of presenting easy steps towards your Hobby Lab. It is Ham or Amateur Radio DIY Community that caused the outbreak of Electronic Hobbyist Activity the world over, long ago. Here the Two Transistor Astable Multivibrator for flashing LEDs, that got popular [...]

DL4YHF – Ham Radio and Homebrew

DL4YHF – Ham Radio and Homebrew This page provides some tools (software by myself), hardware, and other information for radio amateurs, and some other not-radio-related stuff like the PIC programmer.
Frequency counter with a PIC and minimum hardware
by Wolfgang “Wolf” Büscher, DL4YHF – frequency range 1 Hz … 50 MHz

Homebrew Electronic Projects of Harry

Homebrew Electronic Projects of Harry Harry’s Homebrew Homepages; a resource for radio, hamradio and electronics in general.
Harry Lythall – SM0VPO/G4VVJ. Antenna projects, Receiver circuits, Transmitters circuits, AF / Amps circuits, Morse Code, PSU circuits, Useful circuits, EPROM circuits, RF Converters, Synthesizer circuits.

Ultimate Morse Code Web Site – PA3BWK

Ultimate Morse Code Web Site – PA3BWK Wilko J. Hollemans PA3BWK

pdf library
building projects
morse code study tips

QRP and homebrew by DL2YEO

QRP and homebrew by DL2YEO 40 m Band Superhet Receiver, 40 m Band Direct Conversion Receiver, 40 m Band Receiver without ICs, Tx/Rx Control Circuit, Calculating SWR meter, Thermal Power Meter, Selective AF Amplifier, Simple IF Amplifier and Filter, QRP push-pull RF amplifier, 30 m Band Direct Conversion Receiver, 80 m Band Direct Conversion Receiver, [...]