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161SD012 Mario - Home Page of 161SD012 Mario, member of Special DX'ers Radio Group SD, Poland Vice President & Magazine Editor. QSL Gallery, logs, QSL cards and many more useful informations about DX-ing.

Call Sign Prefix Allocations - Table of allocation of international Call Sign series

PA5DD Uffe - VHF & microwave web site

IZ8DDJ Aspreno - Personal radioamateur home page of IZ8DDJ Aspreno.

KU9Z's Favorite Amateur Radio Links - Comprehensive list of links related to Amateur Radio, Electronics, and other fn stuff.

Logikey K-3 - CW keyer by Idiom Press

K-Com - comprehensive line of products for rejection of Radio Frequency Interference (RFI) to telephone equipment.

Magnecor - Finally auto ignition noise suppressor wires that really work.

Broadcast microwave services - Designs and manufactures a comprehensive line of microwave communications equipment for television broadcast, video, telemetry, and electronic surveillance applications.

10 GHz Where, Why and How - Truth and some Mythãs about 10 GHz by David Minchin VK5KK.

ISS Realtime tracking - 5 Day prediction table for ISS and find when the ISS will be visible from your QTH by N2YO

Hidden Transmitter Hunting - Lots of information of hidding transmitters, building portable yagi antennas, s-meters, and much more

History of amateur satellites - Here is a brief history of the amateur satellites that have and are presently circling the globe. They are listed in chronological order by launch date.

Satellite Summary - Present and future amateur satellites

The Microwave Journal - Microwaves articles, The Technology Voice of the Wireless World , need registration to access

The AM stereo page - A comprehensive listing of AM Stereo radio stations in North America with listening tips, news, AM mono to stereo radio conversion information, sources of AM Stereo receivers and a history of AM Stereo broadcasting.

Voice Shaper - Voice Shaper is a freeware windows speech pre-processor for SSB transceivers. It receives the voice signal from the microphone connected to the soundcard, and sends the processed audio back to the soundcard in real time by Alex Shovkoplyas, VE3NEA

PROADIKON - Converts your logs into ADIF (Shacklog, EasyLog, PC-Profilog, LogPlus, DXLog, Log-Projekt, QW, UKWTEST, DAS LOG, HAM-LCT, Eurowinlog, StationMaster, Catlog, ARMAP95/98/2000, SPRINT, WinFD32, WAG, Fivenine, Excel Spreadsheet, CSV or TXT file; also ADIF to ASCII, import into RXCLUS DXCC and IOTA database, *.upf import file for IOTAMEM2 and many other features)

Fastlog - Fast and easy logger freeware by I0XGR , Alberto Guerra for windows

WXtrack Priority listing - Predict the tracks of weather satellites both as paths above the earth, and as images produced by these satellites when scanning the ground.

Zelscope  ^pop - Zelscope is a Windows software that converts your PC into a dual-trace storage oscilloscope and spectrum analyzer. It uses your computer's sound card as analog-to-digital converter, presenting a real-time waveform or spectrum of the signal - which can be music, speech, or output from an electronic circuit.

Amplifier Simulation Program - ASP 4.0 - Design weak signal GaAs FET or bipolar PreAmps. Automatically designs for optimum gain, NF, VSWR or all.

AAVoice digital voice processor Priority listing - "Digital voice processor for amateur radio operators. It use prepared ""wav""-files for transmition. Can work in the beacon mode. Optionally you can use simple circuit for PTT-control. It has a lot macros for tramsmitting. Can cooperate with RZ4AG AALog logger."

KI5YN QLF Filter - The QLF filter is a microprocessor based interface designed to go between a standard Morse code key and a radio transmitter

RS232 Interface - This simple circuit is intended for older Kenwood radios and was presented in chapter 22 of the ARRL Handbook.