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3 Element Antenna for 28 Mhz  ^pop - The DF9CY three-element antenna for 28 MHz by Christoph Petermann DF9CY

G5RV Louis Varney - Photographs and QSL of Louis Varney father of G5RV antenna

A simple Wi-Fi Yagi - Add two parasitic elements to the sleeve dipole of a Netgear Router

Build A Tin Can WiFi Antenna - Build a tin can waveguide WiFi antenna in one hour. Then put it on a 18" inch direct tv dish. No coax signal loss. Use a USB device on antenna. Complete instructions to build this powerful wlan antenna

Yankee Alpha Zulu - Gruppo Radio DX Y.A.Z. Treviso Italy

9N7BCC Nepal 2004 - On the occasion of its 20th anniversary and in memory of its long time member DJ7CY, Sepp Rindfleisch, members of the Bavarian Contest Club (BCC) staged a DXpedition to the Kingdom of Nepal centered around the CW portion of the CQ WW DX Contest.

Denmark - EDR - Experimenterende Danske Radioamatoerer

9A5AAC Miroslav - Personal site dedicated to amateur radio. HAM stuff - something about me, my homeclub and 9A - Croatia, links, pictures. This is also home of HAMs On The Net WebRing.

IW8DUL - Antonio IW8DUL amateur radio home page

Digital Signals - signals and sounds available on shortwave/vhf radio today along with information on the available equipment needed to understand, analyze or identify these signals

HD Communications - Rf Connectors,RF Amplifiers,RF Filters,HF cable and accesories. Tower hardware valves and tubes

Computer Automation - Manufacture microprocessor based repeater controllers

CGA Enterprises - Crankup tiltover towers from 35 to 100'

Twinplex Receiver - How to Build the Twinplex Regenerative Receiver

Kenwood TS690S - Expanding frequency coverage, transceiver Labtest by Christoph Petermann DF9CY

Setting audio on Yaesu FT-2000 - Yaesu FT-2000 Audio Settings - How to make the FT-2000 sound clear and clean by LA5MDA

Log Locator - Freeware MSDOS logging program by OK1DUO

MacSchedKeeper - Macintosh Rig Control for Kenwood TS-50

MorseDec - Macintosh application that decodes morse code into text, PPC and 68K

RCKRtty - Commercial windows RTTY Program, RCKRtty is a comprehensible program for logging and administration of RTTY, PSK31, Pactor, Amtor and CW-QSO's with simultaneous control of transceiver and real-time operation with Packet-Radio. RCKRtty supports normally QSO-operation and a full Contest operation, with maximum data security. Price Euro 45 by Walter Dallmeier, DL4RCK

TrueTTY Priority listing - Program for amateur radio digital communications via a sound card. Supported modes are RTTY (Baudot code), ASCII (7 or 8 bits), PSK31 (BPSK and QPSK) and AMTOR-FEC (SITOR-B, NAVTEX). SELFEC SITOR decoding is possible also. No additional hardware required, need only a sound card. Optionally you can use simple circuit fo PTT-control. Can cooperate with RZ4AG AAlog logger.

Ham DX Cluster for iPhone - An iPhone and iPod touch DX Cluster client

432 MHz EME PreAmplifier - 432 MHz EME low noise amplifier. Circuit, components and image by Christoph Petermann DF9CY

TVI and BCI Filters - TVI and BCI bandpass and bandstop filters in SMD technique. Schematics and images.

50 MHz Transverter idea - Complete 144/50 MHz transverter with GaAs Fet LNA and 400 mW out. No printed circuit board. Schematics and images by Christoph Petermann DF9CY