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glfer is a program for reception and transmission of QRSS/DFCW signals. It is composed of two main parts: the spectrogram window, where you can see the spectrum of the received signal vs. time the transmission functions, to emit cw characters at a slow but precisely controlled speed, using the QRSS (slow CW) or DFCW (Dual Frequency CW) modes

Open source software designed for the Yaesu VR-500 receiver.

BaseStation is a Windows application written originally for the SBS-1 family of Virtual Radar Receivers.

Free prgram to control Yaesu FRG 100 SW receiver with a PC

HF Weather Fax lets you receive marine weather radiofascimile transmissions on your iPad, iPhone and iPod Touch. Just connect it to a shortwave radio tune in a weather fax frequency, and watch the images come in.

This two-axis tracker tracks satellites with high accuracy entirely by reference to built-in spatial sensors in conjunction with a 9-DOF (degrees of freedom) sensor attached to the antenna boom and a GPS receiver.

NetLogger is a logging program that can use the internet to transmit check-in information to other users of NetLogger. Net participants that are monitoring the net with NetLogger receive updated information every twenty seconds.

This noise canceller is suitable for use with a receiver or transceiver and works on all modes, including AM, FM and SSB.

A simple receiver front end protection ciruit idea to protect your receiver when it is not in use

This is a packet radio software developed for amateur radio operators to provide IP communications. You can chat, send/receive e-mail, surf the web and so on via radio depending on your bandwidth. You don't need a TNC. You might have all of TNC features via SoundCard using SoundModem.

N6RK receive 4 square antenna with transformer coupled antennas and true hibrid combiner

Big picture and detailed feature of the yaesu VR-5000 receiver

a PREDICT client application written by Vittorio Benvenuti, I3VFJ, allows operation of an ICOM PCR 1000 receiver in a satellite communication environmenta PREDICT client application written by Vittorio Benvenuti, I3VFJ, allows operation of an ICOM PCR 1000 receiver in a satellite communication environmenta PREDICT client application written by Vittorio Benvenuti, I3VFJ, allows operation of an ICOM PCR 1000 receiver in a satellite communication environment

Specialize in servicing modern HF/VHF/UHF multimode transceivers and receivers Icom, Kenwood, Yaesu, and a few others

Small, but growing, group of amateur radio enthusiasts, most of whom are within 90 miles of Atlanta, are interested in promoting the development of the branch of amateur radio known as QRP - building and operating low power transmitters, receivers and transceivers.

TX RX Systems Inc. manufactures signal boosters, rf antennas, transmitter combiners, cell enhancers, land mobile radios, duplexers, receiver multicouplers, bidirectional amplifiers, bda, rf amplifiers, rf filters, rf cavity filters, rf combiners, rf components, in building rf coverage, repeaters, repeater amplifiers, rf management equipment, rf systems, and rf solutions. TX RX Delivers Reliable Solutions.

A means of sync-ing your computer clock using a GPS Receiver. GPS2Time is another GPS network time synchronization software application for Window 7 and higher. Freeware.

ChirpPix converts a bitmap image to a wave file, which can then be sent by a SSB transmitter and received on spectrogram waterfall displays Image Transmission using ChirpPix and ChirpHell. Click to donwload ChirpPix zip file.

EI9GQ 144 to 28 MHz converter

PC Navtex commercial software for your PC that connects to your NAVTEX receiver, bringing the NAVTEX messages onto your PC

The Daily DX is a text DX bulletin sent via e-mail. To subscribe you have to pay for the daily or weekly subcription and you will receive DX news to your home or office by e-mail Monday through Friday, 50 weeks per year. Includes DX news, IOTA news, QSN reports, QSL information, a DX Calendar, propagation forecast and much, much more.

DX-Fighter is a ham radio program for DX cluster spot reception. Connect to any DX cluster server and Telnet server. DX Fighter is the first program to receive the DX Cluster with an embedded web browser that allows browsing on any website also integrates the functions of research on search engines or databases such as QRZ.com.

Minimal interface circuits for receiver and transmitter audio, also for PSK31

Practical and usable direct conversion receiver for the 40 m CW band

Free memory backup/restore program for the Yaesu VR-5000 receiver.

Develops and manufactures radios and telecommunication devices for special applications. SDR Receivers, Digital HF transmitters, Digital SSB Exciter.

Wikipedia page about regenerative circuits in designing receivers.

Receiver converter that can be plugged to the backside of the Yaesu FT-817 battery powered portable transceiver

Raspberry Pi WebSDR Receiver Project running SoftRock Lite ii Receiver (40m) and Raspberry Pi Model B

This is a nice 1 W QRP transmitter that can be used in combination of one of the simple receivers.

This modification will allow the MkIIG to transmit on most of the frequencies that it receives on.

Buy old manuals, military radios, kits, receivers online shop

This article describes how to make a simple receiver Out adapter cable for the Kenwood TS-590S, so a second receiver can be connected and used as a pan-adapter

Many NDB radio enthusiasts publish their reception logs on the web. A completely separate system designed for individual listeners to make their own logs and obtain statistics on NDBs, DGPS and now Navtex Stations they have received. Log listings can be exported in a multitude of formats and then emailed to the NDB List

Echos of USAF (Formally NAVSPASUR) radar signals reflected off of meteor trails received at Roswell, New Mexico

A very simple receiver project by PA2OHH

ham.dmz.ro FT1000 pages

Packet-Radio-Controller for amateur radio, CB and commercial applications. Data radios (transceivers), receivers and transmitters for high speed data communication Assemblies for satellite ground stations, special receivers and transmitters.

Improper grounding or earthing system can cause several unwanted RF interferences (RFI) to television sets, broadcast receivers, hi-fi sets and telephone sets. In this Article the author explain how to setup a proper radio shack grounding using coaxial cable and ceramic disc capacitor

a methodology for connecting multiple LF/MF/HF receivers to a single antenna via readily available and inexpensive 75-ohm TV cable.

A Windows based Spectral Analysis/Receiver Program primarily used with the SDR-IQ, SDR-14 , SDR-IP, RF capturing hardwares

A project for a SDR receiver by Juan Domenech Fernandez

UK manufacturer of ham radio accessories, including TNX, SDR receivers, RF Diplexers Triplexers, bandpass filters, iambic memory keyers.

Windows Programming Software by RT Systems for Amateur Radios and Receivers

Maker of QRP Kits, QRP CW receiver and transmitters, audio CW Filters, antenna tuners, dummy loads, and morse code practice oscillator

The 'Super-Sixty' a 5 MHz 60 meters band transmitter & receive converter

Schematic anc PCB for a fox hunting receiver for 80 meters band

SSTV pictures received from MIR via Slow Scan TV, by WB8ERJ Mike.

Open source software designed for the ICOM IC-R5 receiver. Linux, MacOS X and Windows

Review of the Yaesu VR5000 general coverage receiver