pi calculator

QM7 7 elements 144 MHz Yagi-Uda Antenna - The QM7 antenna is a simple 7 elements Yagi with 3.70 m boom length for the lower 144 MHz SSB/MGM band, used it mainly for Sporadic-E and MS contacts. It exhibits a forward gain of 11.35 dBd; i.e. 13.5 dB forward gain over the isotropic radiator, while the F/R is about 12.5 dB

A portable 2-element VHF yagi  ^pop - Build a portable VHF yagi antenna for 2 meters. All you need is two rabbit ear antennas from Radio Shack, two CATV baluns, four feet of 3/4 CPVC pipe with one tee.

Roll-up & Copper JPole antennas - Roll-up and Copper Pipe J-Pole Antennas for 144 Mhz.

The Benchmark Beverage - The purpose of this page is to examine the performance of a typical Beverage when all variables except length are held constant

Coax cables specifications - Useful data-sheet on RG coax cables compiled by NA5N

45SD105 Vlada - Personal web site of a freebander, info on 11m digital modes, pictures of antenna projects

QTF Calculator for 10 GHz Beacons - 10 GHz Beacon Database in excel format that Calculates the QTF from any locator to any beacon

GRARC Ham Radio club - The club is located in Dubuque Iowa, on the banks of the Mississippi River.We are active in the American Red Cross and various community events.

27 IDX 106 - Odinn Transceiver Pictures gallery - Large collection of picture of cb radios, ham radio, receivers, amplifiers, and many other accessoriesm mantained by Odinn 27IDX106

The One Man Tower - Complete tower system incorporates rotator mount, and lateral support collars. You never have to climb again - and forget the hassle of tilting over to work on large arrays. The "One Man Tower" is the strongest dmall footprint free standing self erecting tower in the world

Kotkar Energy Dynamics Priority listing - Vehicle mounted mobile telescopic telecommunication towers, splice vans for OF cable maintenance, BTS shelters.

Eimac - Innovators in Power Tube Technology

VLF Time Broadcasts - VLF Time Signal Stations, Station List Compiled by William Hepburn, LWCA

Amateur Television In Pittsburgh - Amateur Television activities in Pittsburgh,ATV operators and users, ATV links, ATV information

Recommended frequencies for digital modes - Active digital mode frequency list compiled by Jason Buchanan - N1SU

Sydney Scanner Frequencies - One of the best compilations of frequencies in Sydney particularly SW. Include Police, other emergency people, Marine, the entire aircraft list for Sydney, RAAF squadron frequencies, UHF CB frequencies as well as a heap of miscellaneous frequencies like security, shoppin malls etc.

Hamradioindia Shopping - on-line shopping of rf components, ICOM replacement boards, marine modules, kits and more

AM Loop Antenna Calculator - Java script calculator for AM loop antennas

AwardsHunter - This program has been created for Amateur Radio operators who enjoy collecting various awards as part of their hobby. It is also for hams who always wanted to play the "awards game", but never could, for lack of time. Well, we hope to give them all a helping hand, with a sophisticated, yet easy-to-use program we created.

AI9NL - Harv's Hamshack Hack - Harv's Hamshack Hack. A remaster of the KNOPPIX distro for Amateur Radio Operators (Hams) who have no prior experience with Linux. Provides a complete OS, software for hobby, web, and word tasks. All contained in an .iso file ready to burn to CD.

OH1AA Logging program - The OH1AA logging program package is designed to handle the book-keeping of amateur radio contacts. The package contains three separate main prog- rams by which contacts are managed. Run under DOS and is freeware

Turbolog - TurboLog is a station management and logging program for the discerning radio amateur / hamradio operator. Besides powerful database and logging functions there is a fully integrated support for the control of typical radio station equipment, e.g. Transceivers, Packet radio, Morse and voice keyer, Digital modes terminal, Antenna switching, Acoustic alerting, and more

PocketSat - PocketSat - Satellite Tracking Software for the PalmPilot

RAUMUF - MUF Calculator by G7RAU ( upload updated 31 August 2002) for calculating the possible e MUF on VHF during es season.

DNBTV - This experimental software will send pictures or slow video directly from your webcam through your soundcard. you will need a webcam capable of 160*120 24bit RGB.