simple receiver

Morgain Antenna for 40/80 - Simple and cheap antenna for 40/80 meter band

W5AM Museum - Receivers and transmitters by Collins , Drake , Hallicrafters , Hammarlund , National Receivers

DXCal DX Calendar - This is DXCal - a DX Calendar. The idea is quite simple, DXCal is a calendar where hams can adds all the DX events that are planned.

AOR U.S.A., INC. - Aor u.s.a web site, manufacturer of base and mobile receivers, handheld receivers, digital voice modems, spectrum display units, frequency monitors and antennas

CommsAudit - Commsaudit uk, i/q quadrature , hf receivers, rf, multicoupler, multicouplers, switch matrix, antenna matrices, masthead amplifier,, vhf receiver, uhf,

Gateway Electronics - Amateur radio kits, cw keyers, vhf mini receivers, 2 meter preamplifier and more audio related kits, based in St. louis, Mo and San diego, ca USA

Russia ATV Amateur TV - Digital Amateur Television web sited include a D-ATV transmitter, D-ATV receiver, D-ATV modulator D-ATV schematics by RA3TTS

Quad - from Tonne Software - This graphics-intensive program designs and analyzes active quadrature ("90-degree") networks for use in SSB transmitters and receivers.

Linrad - An open source software defined receiver for Linux, Free DSP and Windows

MacTNC - MacTNC is simple, configurable terminal software used by amateur (ham) radio operators to control a TNC (terminal node controller). MacTNC performs most of the same functions of other terminal software, but includes buttons for standard commands, and allows the user to configure additional buttons for special purposes. MacTNC works only user Mac OS X because it relies on Unix components of the current operating system.

GOLog Contest Logger for Palm OS - GOLog is a contest logger for Palm OS and was written with the QRP field contester in mind. GOLog is small (about 48K) and simple and should run on any handheld computer running Palm OS version 3.0 or newer.

CwGet PPC Priority listing - A program to decode Morse code via sound input of PDA to text. No additional hardware required - your need only receiver and PDA with sound input. Built-in microphone of device can be used also.

CallSign Software - HamStationExtreme, hamradiostation and scopestation makers. CallSign Software provides a variety of Radio Control Packages to drive ICOM, Elecraft, and Ten-Tec's latest DSP based Transceivers and Receivers.

IC746 control - IC-746 control It’s as simple as point and click. Left click will turn counter clockwise, and right click will turn clockwise.

FRG-Controller by Frans Vink - Free prgram to control Yaesu FRG 100 SW receiver with a PC

HugeIcom - This is a very simple program which helps visually handicapped people to see the frequency and mode of the rig. Or maybe it's useful for demos, trade shows or similiar. It will work with any Icom except the IC-735.

SCAN505 - A simple freeware scanner program for the Kachina DSP505. The software does NOT control the radio thru the interface port - it works in conjuction with the Kachina control software using the file interface

Callsign Lookup - Callsign Lookup is a simple, small Apple Macintosh application that allows the amateur radio operator with a dedicated Internet connection (DSL, cable) to quickly access online callsign databases

ATPDEC - Atpdec is an open source program that decodes images transmitted by POES NOAA weather satellite series. These satellites transmit continuously, among other things, medium resolution images of the earth on 137Mhz. These transmissions could be easily received with an inexpensive antenna and dedicated receiver. For more information about receiving POES satellite images consult the rig site.

A simple VOX circuit - Here is a 3 transistors 6 diodes circuit that is a Voice Operated Tx PTT control as well as an ANTI VOX circuit to stop mis-operation from Rx noise by G8MNY

Homebrew FT 817 Headset - A simple circuit to homebrew your own headset for the Yaesu FT-817

CW Filter - I0QM Gaussian CW Filter page This Filter for the weak signals is the evolution of the simple Universal State filter, already published on "Radio Rivista", the 8/1993

External Keypad for FT-817 - An external keypad for FT-817(ND), for the serious portable/field-day contester/operator. Homebrew it with the free firmware and public circuit diagram. The circuit is very simple and takes power supply from the ACC port of the radio

Receiver block diagram - This is a block diagram of a superhetrodyne receiver.

Dual phase Software Defined Radio - Dual phase coherent Software Defined Radio using two K2 Elecraft receivers and programming in Matlab/Simulink.