audio spectrum analyzer

Analyzing Three Antenna Analyzers - On this page W8WWV present some measurements he made with three of the popular antenna analyzers. MFJ MFJ-269, AEA CIA-HF, Autek RF-1

Patch antenna for APT - The patch, or microstrip, antenna has become a common workhorse for the microwave spectrum from about 1 GHz to tens of GHz. This type of antenna consists of two conducting layers separated by a dielectric to form an extended capacitor by WlHDX

Pacific T.V. Online Tube Catalog - Vacuum tubes and sockets for radio, audio and amateur use. Over 1500 types, online schematics and technical data

VHQ07 UHF CB Repeater - Listen to live audio by VHQ07 Channel 7 UHF CB Repeater located in Brisbane Queensland Australia.

K5ZD contest audio live - During some of the serious contest operations from K5ZD, we will enable live audio streaming direct from the headphones

VE3FW Lakehead Amateur Radio Club - The Lakehead Amateur Radio Club members have all levels of interest and knowledge in the wide spectrum of amateur radio.

South Florida FM Association - SFFMA 147.000 Repeater audio By KG4LXH

Scan Adelaide Priority listing - Scan Adelaide provides easy access to live SAGRN audio

Scan Merrimack Valley - This site contains the Scan Merrimack Valley Fire Feed which has live audio from Area Fire Departments in the Merrimack River Valley, Massachusetts.

Boston Police Radio Scanner - Broadcastify listen live audio feed from Boston Radio Police Fire and EMS

Farallon Electronics - PACTOR mode radio modems and accessories, performance sailing electronics and innovative hard to find parts. Audio cables, packet cables, usb to serial converters

Aeroflex - Aeroflex products support the Test and Measurement Instrumentation field; including aerospace, defense, wireless mobile and broadband communications. Aeroflex solutions encompass a full spectrum of instrumentation for solving test and measurement requirements.

Willtek Communications - Comprehensive range of cutting-edge solutions for testing, measuring, and analysing rf networks and devices. Testers, mobile service testers, handheld spectrum analyzers

Vacuum Tubes, Inc. - Worldwide sellers of vacuum tubes and electron tubes for audio, radio, and industry

ZLP Electronics - Yaesu Icom Kenwood CAT Interfaces. Isolated audio-DATA interfaces for ALL afsk DATA modes inc psk31 rtty sstv etc.

ViPEC Network Analyzer - This program intended for electronic circuit analysis (mainly for Linux). ViPEC is a powerful tool for the analysis of high frequency, linear electrical networks.

Morse Code Master - Highly innovative, audio-visual morse code training software for 'slow' and Farnsworth methods from Stratosoft.

KE7ATE - VR-5000 Signal Capture and Analysis Software - Give your VR-5000 a new face. Controls your VR-5000, Log stations, Manage frequency lists, Record Audio and more. This program utilizes a more visual approach to simplify your radio listening.

EIS Spectrum Analyser - Freeware program for analysis and simulation of impedance spectra

Freakin’ Beacon Setup Program - A small program to simplify changing messages in the Expanded Spectrum Systems Freakin' Beacon controller. The program makes it easy to modify an existing message or to have multiple messages available in different files ready to program into the beacon controller.

JQAM (QAM modem) - Transmit audio/video, UDP packets, http, rs232, with QAM using the soundcard rates up to 100kb/s.

A simplified video control box - When one starts in amateur television, one begins with a small simple transmitter and a small camera. But very quickly, one needs to transmit audio signals with the pictures, then comes a second camera

FT-726 AUDIO Modifications - Throughput improvement for the FT726R - Tapr PSK modem

Precision E-200-C Signal Generator - This page lists some vintage test equipment including RF Signal generators, tube tester, cap tester, audio generator

The simple man's Spectrum Analyser - An easy to build spectrum analyzer