data controllers

New HF antenna HB9ABX  ^{updated  pop} - A new, revolutionary design allows the construction of small HF antennas, which provide the same efficiency as large antennas. This antenna can be built for all HF bands, from 10 to 80 m.

World Contest Station Database - Database of over 3000 active hf contest stations worldwide

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

Italian Callbook - CallBook OnLine - this callbook includes data from over 50000 italian radio amateurs

Ham Radio Deluxe DX Spots - Ham Radio Deluxe DX Cluster data is taken from the Amateur Radio DX cluster using DXSpider

RACOM - Radio modems - RACOM is a Czech company specialized in design and production of radio modems and other devices for wireless data networks for radio channels from 140 to 900 MHz. RACOM radio data networks are suitable for data transfer in telemetry & SCADA applications, transaction networks, security systems, IP networks and firts of all mobile tracking and fleet management.

US Frequency allocations - Searchable database of frequency allocations in the US, from cellular frequencies, paging frequencies to marittime and microwave frequencies.

APRS in Tokyo - APRS stations in the Tokyo region tracking database from FindU.com

ESA Portal - Calling all radio amateurs Priority listing - Radio amateurs worldwide are being asked to help collect data from the student-built SSETI Express satellite, due to be placed in orbit on 27 September. To encourage them, ESA’s Education department has organised two competitions and is supplying free downloadable software.

Icom AH-4 modifications - Mods for the Icom AH-4 antenna tuner

Modifications for the Yaesu FT-817 by KB2LJJ - KB2LJJ Radio Mods Database

KB2lJJ radio mods TH-G71A and TH-F6A - Another page dedicated to TH-F6A modifications

Rigpix database - Yaesu - VX-5R - Picture and specification about yaesu VX-5R

Rigpix database -Yaesu - VX-7R - Picture and specifications for Yaesu VX-7R

KB2LJJ mods for 2725 - IC-2725 mods

Test & Measurement Equipment Buying Guide - Compare and select Test& Measurement equipment according to its technical parameters; access library of manufacturers specs and data sheets. TestBuyer.com

Phase 3D (AO-40) Decoder - This program demodulates the telemetry data signal transmitted by the AO-40 satellite (aka Phase III-D) using the PC sound card

DF9CY Project Auriga - PA is a JAVA software package containing several programs, SW/VHF/UHF Logbook (imports format from RADIOMAN, VMT), Log conversion to HTML format, Import and export functions for RADIOMAN, CT RES files, BV QSL Labels, CSV etc. Internet DX-Cluster support, Keeps track of your worked Callsigns, Checks your worked Grid Squares per band, Databases for worked Grids and Callsigns Uses K1EA CQWW.CTY country file, Easy command line version for terminal operation Moontracking as clock, Pathloss calculation

Baudline signal analyzer - A Linux based FFT spectrum analyzer designed for time-frequency browsing and scientific data visualization. Oscilloscope waveform, statistical histogram, accumulated spectral trace,Weak Signal reception, continuos data logging, FFT Analyzer and specialized measurement windows.

eQSLMaster - eQSLMaster is a HAM radio program, that allow to perform various functions using the Electronic QSL Card Centre (eQSL.cc). With eQSLMaster users of the eQSL.cc system have the ability to upload an entire ADIF format log file (or single QSO) and have it deposited into eQSL central database using LogServices.

RigResident - RigResident is a small program for RIG control, which does allow to set and read data of connected tranceiver (frequency, mode etc). RigResident supports more than 70 TRX models from ICOM, KENWOOD, YAESU and Ten-Tec.

DJ-X3 Memory Management Utility - DJ-X3 Memory Management Utility - Edit Memory Bank channels (700). Upload / Download, Load / Save Memory Bank channel data, Full / Partial Reset of radio.

FhG Software Radio - The Fraunhofer Software Radio is a first-class DRM reception system which provides audio and multimedia data content

Are you ready for BPL - Broadband over power lines (BPL) is a technique for transmission of high speed data (broadband Internet) over powerlines. Access BPL technology injects radio frequency energy into powerlines which were not designed for transmission of radio frequency energy, and leak substantial energy that causes interference to radiocommunications service

Wavefront CompactPCI (CPCI) RF converter - The Wavefront CompactPCI (CPCI) RF converter provides a complete half-duplex radio front-end in an industry-standard 6U format. The architecture consists of dedicated receive and transmit channels that share a common RF interface.