pi filter

G3SEK's Amateur Radio Technical Notebook - A lot of good informations concerning antennas, filters, moonbounce, and circuitry data.

EFHW Vertical Antenna - Steve G0KYA project of and End Fed 1/2 Vertical

Clif's Ham Radio Page - Summary of experience with restricted space antennas

IARU R1 VHF Beacon List - This list of VHF/UHF beacons is compiled for IARU Region 1 by G0RDI, and it builds upon the valuable work contributed by G3UUT

OK1RR DX & Contesting Page - Almost a fresh QSL manager Database, Country Tables for YPLOG by VE6YP (updated monthly), Additional files for the TRLoog by N6TR. Technical topics for HF Contesting (mostly CW), software download (a huge collection)

9H1CD - basically a personalized homepage of my station including pioneer work in various modes of propagation to Mediterranean shores and to continental Europe.

OZ5DK Thomas - See my Ham radio station and some pics of my self.

Grey Map - Gray line map in black and white

GeoTool - Pickup truck stake pocket antenna mount by geotool

WIMO - All kinds of antennas, RF connectors, radio transceivers and accessories like power supplies, morse keys, lowpass filters and so on.

Timeware tech. - Amateur Radio Products, Noise Reduction Filters, Data Controllers, deviation meter, Software, DSP-RTTY

INRAD International Radio - Supplier of custom designed, high performance quartz crystal filters for communications receivers and transceivers, for Yaesu Icom Kenwood and Collins radios

Heros Technology Ltd - HF Radio Preselectors,BCB filters,Low Pass filters,Band Pass filter

RMS international - RMS International, italian distributor of Alcava batteries and power supply, since 1975 manufacture power amplifiers, watt meters, antenna tuners, TVI filters and other accessories for hams and cb radio

Parker Cases - Parker plastics shipping containers

AEA - AEA Technology Inc. is a pioneer and leading manufacturer of RF and cable test equipment for the wireless, Telco, CATV, NMR & MRI, RFID, telemetry, aviation, commercial, military, and two-way radio industries. Produces SWR Meters, Pre Amplifiers, filters, power meters and antenna testing products

Moon Calendar - Current moon phase and monthly moon calendar

200 Morse Code QSO`s by Les Johnstone, GM¤SOZ - These are 200 Morse Code QSO`s which might typically be heard on the HF bands.

CQ TV - British Amateur Television Club CQ-TV on-line magazine, it publishes articles on amateur television and related topics four times a year.

British DX club - Information about the BDXC and how to join, including a club-compiled list giving time and frequency details for all English language dx and media programmes

Pile Up! - Pile Up! is a CW contest training program. The program requires a SoundBlaster (or compatible) card Available for Linux and Windows 95.

LogWindows - Log Window is a Windows based software program designed for the specific use of Amateur Radio operators to keep a log of the contacts that were made with other radio operators around the world, designed to be used in Amateur Radio contests, Emergency situations, and for general record keeping of conversations. By SCO Inc

Ham University  ^pop - Ham University includes Morse Code lessons, graded exercises, and a game. Windows program for helping you pass your FCC Exams, contains all the questions for all three FCC written exams. You can browse the questions, quiz yourself on your weak areas, or set yourself a mock exam.

PED CW PileUp Trainer - PED is a CW pileup trainer written by MasIII. It is a free software. It requires DOS and SoundBlaster compatible sound source.

WinPix32 - Slow Scan TV for Windows 95/98 and NT, WinPix32 supports all SSTV modes in all of the active SSTV families. Commercial demo available but discontinued