data

Wire Dipole for 7.05 MHz - Inverted Vee antenna for 40m with simulation data by DF9CY

EB5AGV Vintage Radio and Test Equipment - EB5AGV / EC5AAU Boatanchor collection. Useful data on TV-testers, Collins, Drake, Hammarlund, Hallicrafters, National, Heathkit, EF Johnson.

VHF UHF European Beacons - MMMonVHF maintains the data for 6m, 2m, 70cm and 23cm bands in collaboration to LA0BY. This site allow display of a beacon map and latest beacon spots.

illinoisdigitalham : Digital Ham Radio - dedicated to the discussion & development of ALL amateur / ham radio Digital Voice & Data communication

ExTech - Electronic test and measurement; digital multimeters, clamp-ons, portable printers, meters and dataloggers.

EQS Systems - Test and measurement instrumentation, AC & DC power supplies, power sources and analyzers, data acquisition systems and boards

Gage Applied Technologies - Gage applied technologies designs and manufactures high-speed data acquisition systems, high-speed digitizers in pci / cpci / pxi or pc oscilloscopes, providing utmost measurement fidelity for high frequency signals.

Signatec - Signatec manufactures pc based data acquisition waveform digitizers pci daq boards, digital signal processing pci dsp boards, waveform signal generator pci dac boards, and real time waveform recording products for the signal technology market.

About Digital Smart Technologies - A general guide to D-STAR. The purpose of D-STAR is to allow HAM Radio operators to speak further and clearer using digital voice while sending data from 1200 BPS on up at the same time.

Configuring an Icom ID-1 DSTAR radio - Icom dstar digital data configuration for simplex

Low Frequency operations by W3EEE - A squint at the world of LF This website was initially thrown together to provide ready availability to data being collected from the measurement of a transatlantic LF (Low Frequency) path.

FM Repeater Database - Via this interface you have access to one of the biggest databases on amateur radio voice repeaters.

Repeater and Broadcast Transmitter Database - Searchable database of amateur repeaters and broadcast transmitters. The database covers the fifty U.S. states, the District of Columbia, and the ten Canadian provinces.

SWL DX Cluster - Web cluster for swl's. With many features, including filters, search, SWL Database, lookups

USAPhotoMaps - Free Windows APRS Client with capability of downloading free aerial photo and topo map data.

D-RATS  ^updated - D-RATS is a small application designed to provide data communication capabilities with D-STAR radios. It supports text chatting, file transfers, position reporting and mapping, and much more! It is written in Python using GTK to run on multiple platforms.

D-StarLet - D-Star Radio Messaging System - A web-based text messaging application using D-Star digital data technology. Client server environment, where server can run linux windows or macos os with apache tomcat by Dean K. Gibson.

D-StarCom - A simple command-line-based program for the exchange of common data between D-Star radios

CQRLOG for Linux - CQRLOG is a Linux advanced ham radio logger based on Firebird database. Provides radio control based on hamlib libraries.

HF software digital modes for linux - This software allows a standard PC soundcard to be used as a shortwave data "modem". The whole processing is done on the main processor CPU. Support RTTY Amtor (Sitor) and Pactor 1 by Thomas Sailer, HB9JNX/AE4WA

Ham Radio for HanDBase - PocketPC mobile logging database for Amateur Radio operators for HanDBase

Coaxial Cable's specifications - A table with Loss in DB/100m , Max power in Watts, Diameter in mm , Velocity factor (VF)

OH5IY Antennas Lightning Protection - Thoughts of ham radio station lightning and transient protection, finnish legistlation, rules, standards, principles, examples, data, graphs, formulas and transient protection device schematics.

Frank's Electron tube Pages - Tube databases in different languages

EDUCYPEDIA Tubes datasheets