rf spectrum analyzer sof

Build A Magnetic Loop  ^{updated  pop} - Documents and schema on how to build a Magnetic Loop Antenna fo 80/30 mtrs

Antennas : theory and designs - Thierry LOMBRY, ON4SKY, develops in several long articles all you need to know about antennas, their design and performance, for both amateurs and SWL

Japanese Amateur Radio Teleprinter Society (JARTS) - The biggest RTTY/PSK31 club in Japan includes info on JARTS RTTY Contest

Win-Test contest logging software - Win-Test is a contest logging software compatible with all the operating systems Windows 32 bits without exception. All major international and many national contests are supported. Network TCP/IP capability, radios and CW interfaced, database-aided autocompletion, and much more...

Empower RF Systems - We offer a large selection of standard and custom High Power RF and Microwave amplifiers for broadband, general communication, matched band, and personal communication markets.

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.

How to select an amplifier - Thierry LOMBRY, ON4SKY, develops in three long articles all you need to know about amplification, and how to seletc an HF and a solid-state amplifier, with pictures.

DOMINO - new MFSK mode - A new MFSK mode with IFK by ZL1BPU and ZL2AFP.It is a simple Amateur Radio mode for keyboard QSOs. domino provides digital chat-mode operation on the HF bands, using the well respected sound card technique. Domino will handle TX/RX offsets and mistuning of 200Hz with ease, and will provide perfect copy of drifting signals up to 200Hz/minute!

How to wind a choke - How to build and properly wound an efficient RF choke to protect antenna controller in mobile setups

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

UK Radio Frequency Bands - A guide from 0 Hz to 30 MHz The main bands, all frequencies in MHz unless otherwise stated

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!

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.

YagiCAD - A freeware software package for Yagi design. This webpage also contains many sample and standard antenna downloads for experimentation.

Ham Radio Deluxe v4  ^pop - HRD v4 is a freeware windows multi function software, includes logbook, CAT Control software for Elecraft, Kenwood, ICOM, Ten-Tec and Yaesu radios, rotor controls, digital mode rtx, rotor control, dx cluster client and many more features by HB9DRV

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.

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

MacR–1000 - Icom IC–PCR1000 communications receiver remote control for Apple Macintosh computers running MacOsX

SSTV32 Slow Scan for Windows - SLow scan software that runs in Windows 95 and up (32 bit), this app uses the sound cart and is loaded with functions and operator modes.

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

Axis Spectrum Analyzer - Axis Spectrum Analyzer allows you to record audio along with sincronized 31 band spectrum analyzer readings from any audio source to be inputed into Macromedia Flash movies in an easy to integrate way. The software can also be used to display real-time audio with customized visuals on video devices such as projectors, tvs,etc.

Attendance Management System - Software that tracks attendance for ham radio clubs and organizations.

Defpom's CB Radio Simulator - It is a application which can be used for troubleshooting CB radio faults, by giving a graphical display of the normal operating frequencies generated by various parts of the CB radios circuits, it can help you identify if a frequency is incorrect or even missing. Another good use for this software is simulating possible frequency expansions, as it allows you to choose any frequency that the PLL is capable of generating, so you can see what the radio will allow you to get !

F6BON Homebrew - Spectrum alalyzer, uhf shf test equipment