rf hop calculator

HF mobile antenna  ^pop - Build your mobile antenna which outperforms Hustler by 10db and ATAS-100 by 18db. From 80 to 10m.

Radio Friends DX Group - The official webpage of Radio Friends DX Group

SPRARC Windsor Ontario Canada - VE3WRC Sun Parlour Retirees Amateur Radio Club in Windsor Ontario Canada, swap shop, informative links,and much more

Christian Amateur Radio Fellowship - CARF combines the wonderful world of amateur radio with Christian fellowship and service

Nellis Radio Amateur Club - "Located at Nellis Airforce Base-Las Vegas, Nevada USA. Nellis RAC is a progressive radio club. Providing licensing classes, on-air code study group, vhf/uhf repeaters, emergency and public service communications, ""Aviation Nation"" Airshow Special Event Station N7V"

Al N' Jane Classifieds - Al N' Jane's All Canadian Amateur Radio Swap & Shop

Shortwave and Scanner Swap Shop - A group for the purpose of buying-selling-trading SW receivers and scanners only. Free and mainly for individuals.

Amateur Radio Products - BullDog Iambic keyers, memory keyers, beacon boards, interface cables

WaveNode Precision Station Monitoring - The WaveNode WN-1 is a precision, full-featured Amateur Radio Station Monitoring System which now includes Audio Announcing for RF power, SWR, and DC monitoring using HF and UHF remote sensors.

Great Circle calculator - Excellent on-line java great circle calculator with perl source code and excel spreadsheet for gc calculations

Yaesu FT857 897 Interface - FT857 and FT897 Interface PCB and schematic

Ontario Unlisted Frequency Guide - The Ontario Unlisted Frequency Guide web page is dedicated to scanner radio hobbists who are frequency hunters.

Antenna Masts & Mounts - Online shop for Rotators, masts, wall mounts, chimney mounts, tripods.

Outbacker Antenna shop - Outbacker HF Mobile Antenna from Down-Under, Old Fashioned Service in secure online shopping

12 Volt Electronics, Inc. - The CB Shop in PA

K1CRA Radio Store - Unique and Hard-to-Find accessories for Amateur Radio. Featuring Plasti Dip products, DK9SQ Masts, Wire Antennas, AEA Antenna Analyzers and RF Connectors too!

Funktechnik Grenz - Online shop for ham radio equipment. Yaesu, Kenwood, Icom, Alinco, Diamond, Power supplies, Antennas, Rotators with world-wide shipping.

The Quack Shack CB Shop - CB Radio and Ham Radio outlet. Accessories, amplifiers, mounting brackets, power supplies, GMRS, FRS, scanners, microphones,and more

RFI - Radio France Internationale - Le site de Radio France Internationale (RFI). L'actualité internationale en français et en 19 langues. Ecoutez RFI sur Internet et découvrez les dossiers d'actualité, les programmes et les fréquences de RFI à travers le monde, toutes les émissions, le club RFI, la langue française, les forums de discussion, les revues de presse, les éditoriaux, la météo marine, MFI.

SuperNEC antenna simulation - Hybrid Method of Moment (MoM) and Geometric Theory of Diffraction (GTD) program. Matlab based GUI interface. Genetic optimizer included. Windows/Linux versions.

Smith chart calculator - linSmith is a Smith Charting program, mainly designed for educational use. It allows defining multiple load impedances (different frequencies), and adding components (discrete components and line sections) in series and parallel. It plots the impedances on the screen, shows the values in table format, and is able to generate publication quality Postscript output.

HamCAP - A freeware HF propagation prediction tool, that interface the VOACAP tool by Alex VE3NEA

FODtrack Satellite Tracking Interface - Construction tips to build an automatic``satellite tracking rotor controller using``PIC16F877 IC.

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

Transistor Specifications - Transistor Specifications, ``RF Power Mosfets ¹ HF VHF transistors