qrp receiver

Tenna Dipper Kit - The "Tenna Dipper" is a low power antenna analyzer and ATU tuning aid. With this handy accessory, you can determine the 50 Ohm resonance frequency of antennas or you can adjust your antenna tuner for a 50 Ohm match without generating QRM

50MHz Power Splitters - Splitting an antenna between two receivers or in use as the phasing harness in stacked antennas where there is a need to equally split the power from the transmitter between two antennas

Build a 4:1 Guanella Balun - Step-By-Step Construction of a 4:1 Current-Type Guanella Balun by W1CG

Rockloop Antenna @dl1gsj - A magnetic loop made just of wire. Suitable for portable usage and for QRP operations.

SWL Receiving Antenna Ideas - Shortwave radio receiving antenna experiments, on 30 and 40 meters band with pictures, schematics and descriptions.

Crystal Receiver World - Crystal receivers, construction projects and plans, old-time crystal sets, hints, crystal receiver store.

K0KP 10 Meter QRPp Beacon - Homebrew K0KP 500 Milliwatt Ten Meter Beacon. The beacon is located at the K0KP shack in Fredenberg, Minnesota, USA at Maidenhead grid square EN36VW

HB9AZT Internet remote station in switzerland - HB9AZT offer a free Ham Radio Receiver (TS2000) with live audio stream. Login is required for full control, available for paying members with valid radio amateur licence.

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,

SSB Electronic USA - manufactures and distributes HF, VHF, UHF and SHF equipment covering 10MHz. - 47.0GHz. Our products include: Wireless LAN / WAN Bidirectional Linear Amplifiers, Low Noise Preamplifiers - LNA's, RF Linear Amplifiers, Relays, Transverter Systems, Frequency Translation Systems, Downconverters, Antennas, Parabolic Dishes, Coaxial Cable, Relays, Antenna Switches, Microwave Test equipment, PC controlled Receivers, Microwave Linear Amplifiers including models for Telemetry, Wireless, and CDMA applications.

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

Ideas and Projects for QRP - The free pdf book is a compilation of articles congenial to QRP published on 2003- 2005 years at free e- magazine AntenTop. 17 Mb pdf file.

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

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  ^updated 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.

EasyTuner - Easytuner id an excel spreadsheet that tunes your radio. Works with all Kenwood and Icom receivers and transceivers that are computer-controllable. Sets receiver and transmitter frequency and mode

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.

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

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.

HF QRP Lin Ampl - HF QRP Linear Amplifier with 2x 2SC2166 + 2x 2SC1969 Push Pull Transistors (13.8V)

Noise Sources - Computers, TV's, and Switching Systems can cause noises to your receiver

A regenerative receiver with 6SN7GT - Circuit to build a regenerative receiver

Digital QRP SWR & Power meter - A KD1JV Melt solder kit, a swr and power meter operating from 160 to 6 meters ideal for portable and field use