signal generator rf

Magnetic Loop antenna  ^pop - Why is an Magnetic Loop antenna so special, this antenna is picking only the magnetic part of the elektro magnetic radio wave. The big advantage of this antenna is that the electric interference from the big city have no influence on the received signal

1AT172 Franco - Personal page from Livorno Italy

QNEWS Ham Radio News - Daily updates to the weekly QNEWS Ham Radio News service in text realaudio and RF

Amateur Radio Club of Parker County - W5PC is an ARRL Special Services Club, ARES/RACES/SKYWARN in Weatherford, Parker County, TX

SV2BXC Spiros - SV2BXC Personal Amateur radio Web Page

WB2RXF David - VHF UHF, Satellite and weak signal resource

HamFind - Search engine dedicated to amateur radio

Antenna Products - Antennas cover the RF spectrum from kilohertz to gigahertz and support countless mission critical military, air-sea navigation, ILS and voice-data communications applications.

CONEX - DTMF Remote Controls, DTMF tone generators and broadcasting products, remote broadcasting via cell phone, cell phone mixer and remote phone keypad

Quantics W9GR - Digital Signal Processor Kits

Industrial Communication Engineers - RF parts, filters, rf switching products.

MT63 HF mode - MT63 is a DSP based advanced HF mode for Amateur Radio, intended to provide high performance keyboard - to - keyboard conversational operation on HF bands under poor conditions

Digital Signals Sounds - Several files with examples of sounds from digital radio modes on short wave. PSK, RTTY Hellschreiber MFSK FSK Sitor

Hellschreiber beacon project - This web site describes a low power beacon system to be used for propagation and performance tests on the lower bands. The beacon offers CW (on-off keyed) modes and FSK modes; the traditional Morse ID mode, and Feld-Hell, another highly noise immune CW mode.

W5NCD SSTV pages - SSTV interfaces and software, personal stuff and suggestions for sstv novices

Frequency Manager - Database system with 60000 frequencies, powerfull 3D MUF/LUF-propagtion software and full copntrol of several receivers

WinPSKse - WinPSKse is a logical outgrowth of WinPSK as designed and written by AE4JY. The look and feel is intentionally similar, but some significant changes have been made, not the least of which is the ability toreceive two PSK31 signals simultaneously.

SkySweeper - Provides most advanced digital signal processing (DSP) functions to be used together with your HF receiver. All signal processing is done in your PC and no extra hardware is needed. HF/VHF rx & tx and analysis software introducing free advanced SkyBoost and MFSK16 modes!

Zakanaka  ^pop - A digital mode decoding and terminal program that uses no terminal unit, terminal node controller, or multimode hardware. It does all its decoding using the sound card inside the computer, and it can interface with a radio using a COM port. Zakanaka is an extremely cost-effective way of operating PSK31 and RTTY

SSTV1 - SSTV1 Modem software is an AFM modem that runs on the TAPR/AMSAT DSP-93 hardware platform that can be used to receive and transmit Slow Scan Television(SSTV) signals.

Nova For Windows  ^pop - Real time tracking of an unlimited number of satellites, fast, accurate and easy to use. Automated FTP keps updates. Also support a great number of interface to control rotors azimuth and elevation plus frequency doppler shift.

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.

Double Tone Generator - Double tone generator for testing intermodulation

100W HF QRO linear amplifier - Based on Motorola MRF454, schematics and component list

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