pi matching

Antenna Design Lab by N4UJW Priority listing - Design and build your own Hf thru Vhf antennas.Contains pictures, plans, parts list of very popular ham antennas along with experimental types.

Broadband receiving antenna matching - This article addresses the subject of obtaining the best signal transfer from an antenna to the typical 50-ohm receiver input over a wide frequency range, with emphasis on medium-wave (500 – 2000 kHz), encompassing the standard AM broadcast band and the 160-m amateur band.

15 AT 161 Denise - Many link's of other Groups, Canton Ticino and pictures of Ticino

X-Bones Antennas Priority listing - 10 and 11 meter mobile DX and keydown antennas, radio and amp mods, pics, links, and much more.

Ham Radio Deluxe Cluster - Ham Radio Deluxe DX Cluster based on an original idea by the DXSummit cluster runs DXSpider

TT8ZZ Homepage - TT8ZZ Homepage. Logsearch and pics.

University of Hawaii Radio Astronomy - Online receiver streams signals from Jupiter and the sun

SteppIR Antennas - 20 meters through 6 meters, antennas

Pixel Technologies - Antennas and Accessories for Satellite Radio and AM FM HD Short Wave Radio, satellite antenna, shortwave magnetic loops.

PicoScope - Pico Technology have developed a wide range of professional PC-based instruments that offer all the functionality of conventional test equipment (DSO - digital storage oscilloscope, spectrum analyzer, meter), and also many features not normally available in this price range. Available functios are Oscilloscope, Spectrum Analyser, XY Scope, Meter and Measurements

Echolinkhams - Users of the new echolink system. Including ham general discussions and topic's.

VE3XAT SSTV Pictures - SSTV pictures

Sporadic E propogation Priority listing - Sporadic E notes with reference to ten meters FM by g4xgt

Capitol Hill Monitors - Frequencies, links for scanners, email lists, online audio and more for Maryland, DC, and parts of Delaware and Virginia

Shipping Cases - Wide selection of quality, affordable shipping cases including stock and custom, heavy duty, pelican protector, removable top, wheeled, ATA, and more!

Online Cables.com - easily design your cable, pick connectors and cable, print drawing, get immediate quote and place order, all online.

About Pirate Radios - Information about pirate radios, what they are and why are considered pirates

DX Activities of ONL5183 - Whith more than 20 years of ham practicen SWL Thierry LOMBRY, alias ONL5183, has written several technical pages about ham activities, including propagation, radio perturbations, radioastronomy, DXing, QSLing, ham-spirit, review of material and more. This very interesting website is completed by a large French section devoted to amateur astronomy illustrated with vivid colors pictures.

CQ Log - CQLog is a powerful logging program for Windows. It provides a comprehensive control centre for everyday on-the-air activities, including: full-featured logging of QSOs; statistics for many awards (for LoTW and eQSL capability); support for QRZ, RAC, GOLIST databases. You can save up to 3 pictures for each SSTV-QSO. Two-way data exchange with MixW2, and DigiPan. Integrates with DX Atlas. Real-time upload of QSOs to eQSL.cc. The program also offers a "contest-mode"; supports CAT systems for YAESU, ICOM, KENWOOD, Ten-Tec. Prints QSL cards, and QSL labels, addresses envelopes.

W1SQLPSK - Copies up to 20 PSK qso's at once. Auto detects Call Sign. Lookup Prefix by Joe Faria W1SQL

CallSign Software - Hi-end software for the Ten Tec software radio line inluding Pegasus Jupiter and RX-320

Pro-92 control - Program for dumpimg Pro92 scanner memory into PC

50 MHz GS35B 1500 Watt Amplifier - 50 MHz 1500 Watt Russian GS35B amplifier. Well documented. Complete construction details,pictures,schematics, and more.

Rtty interface (FSK/AFSK) with sound cards - "How to remove the so called ""ground loop"" and the reentry in the RTTY broadcast and make radio and PC happily coexist"

CAT Interface for Yaesu - schematic diagram for CAT interface for yaesu HF Transceivers