rf spectrum analyzer

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

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

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"

Nemal Electronics - Manufacturer of standard and custom electronic cable, connectors, cable assemblies, and patch panels for broadcast, audio, video, RF, microwave, and electronic control applications.

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.

50 Mhz Dx & Audio Files - Lage collection of 6 Meters and 2 meters QSOs, recorded in real audio format by OE3MWS

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.

LF Analyser - Professional analyser sound signals, scope, spectrum, spectrograph

HF Analyzer - Professional analyser HF signals, work with bandwidth 500Hz....60Mhz, ddc-mode, scope, spectrum

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

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.

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

F6BON Homebrew - Spectrum alalyzer, uhf shf test equipment

Amateur Radio Repeater Controller - The project requirement is to design the interface to the signal channel elements after the receiver and before the transmitter