sig generator

Double Extended Zepp Antenna  ^pop - This double extended Zepp provides 3 db gain over a dipole on the band it is designed for. Each side or leg is about 5/8 wavelength long.

KB1DIG's 2 Meter Antenna Design Gallery  ^pop - Home-brew antenna designs for VHF. 2-meter colinears, 2-meter Halo, and 6-meter Halo

2 Meter J-pole from 450-Ohm Ladder Line  ^pop - Great first time J-pole project. Covers most of the basics. This small and thin design also makes it good for several stealth applications.

Limited space antennas - My site describes several compact antenna designs.

Trans-Continental Dx Operators - 11 meter SSB Freeband radio group Founded in 1978, Over 3500 Signed up operators, membership is free.

Polish Callbook - Polish Callbook with search engine, QSL cards, photos and map generator.

hamdata.com - Callsign lookup. Late FCC information. Information about the Hamdata callbook/logbook cd

E-Hams Evansville IN - Informal club meeting second Wed of each month. Red Banks Branch Library. 6PM cst.

National Radio Data - United States and Canadian call sign/scanner frequency databases, Worldwide airport frequencies, FIPS codes, Mass Media searches for DXing and more!

9H9SWT SES - "U.S. Swift Boat SailorsßReunion activities, Special Event Radio Amateur Station callsign ""N4S"" will be operating from March 20 to 23, 2003 from the Sheraton Waterside Hotel, Norfolk, Virginia USA."

Amateur Radio Info - Information for Amateur Radio, Echolink,``Frequency assignment,Q Signals, RST, Fcc Part 97, 3rd Party traffic.

hfradio.org Amateur Radio Resource Center - A comprehensive resource center with DX aids, live propagation, callsign searches, news and bulletins, maps, and more by NW7US

Dxpedition to Piel Island May 2008 Video - A mini Dxepidition to Piel Island on 24th/25th of May 2008 by the CQ CQ Portable group and the call sign will be GB0PIA.

Quadrifilar helicoidal antenna - Design your own quadrifilar helix, the site even generates a drilling pattern in a PDF file. Several different construction methods are shown.

Customized LED Callsign Microphone Pins - Be seen day or night at your local HAMfest or HAMvention with these callsign pins!

ON5UR QSL print service - We are hams who design high quality full colour QSL cards. Now we print also full colour backsides on our QSL cards. 1000 cards costs only 82 Euro. For more details write max@on5ur.be``Remember: The QSO is short, our QSL cards are forever !

Interval Signals Archive - Large collection of audio clips of foreign radio stations, with identification announcements in various languages, signature tunes and jingles, and of course interval signals.

Design and build helix antennas - An on-line javascript calculator and quite a few pictures to show how to make a helix antenna.

LF Analyser - Professional analyser sound signals, scope, spectrum, spectrograph

HF Analyzer - Professional analyser HF signals, work with bandwidth 500Hz....60Mhz, ddc-mode, scope, spectrum

Trimitator - Software for imitation digital radio-signals: ASK, FSK, BPSK, QPSK, variable speed, any frequency

AREight - This is the most advanced scanner software for the AR8200 and the AR8600. It can effect any type of scan, can scan from 1KHz to 3000MHz in one time. The AREight is a software for help you to listen signals from around the globe on the shortwave bands

QRO via Russia - Power amplifiers from amateur radio operators around the world which are designed/built using Russian tubes.

A.M. tutorial - This tutorial is designed to help explain some of the concepts involved in RF power measurement for amplitute modulated signals.

Amateur Radio Repeater Controller - The project requirement is to design the interface to the signal channel elements after the receiver and before the transmitter