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A transceiver front-end protector in high signal level environments. An homemade RF limiter to protect your receiver front-end from high radio frequency.

The direct conversion receiver described consists of only a bandpass filter, mixer IC, VFO and audio filter. With only 22 parts, this simple circuit should take a few hours at the weekend to construct.

G0UPL QRSS receiver inspired by I1DFS receiver

Receive and listen to FM and AM radio broadcasts on your browser or ChromeBook using an RTL2832U-based USB digital TV tuner.

A free marketplace for hams and radio enthusiasts to list extra receivers, transmitters, parts and associated items to be posted.

cq-contest reflector comments about the performance of the EWE receive antennna collected by KA9FOX

160 meters transmitter and receiver by G3NGD

Contest organizers can use this software to receive e-mails containing contest logs written in the most common Cabrillo file format. The (automatic) evaluation of these Cabrillo files is also supported by creating summary and human readable log files.

Whether Hamradio software, Transceiver or Receiver, WiFi sticks as well as practical accessories. Bonito have everything around the topic Hamradio.

The function of the XPhase is based on the fact that the interfering signal, received by an auxiliary antenna, is added phase-shifted to the signal received from the main antenna. When the phase-shift is more or less 180°, the interfering signal is canceled out.

The Radio Shield is an add-on kit for the Arduino development board that provides AX.25 packet radio send and receive capability, a prototyping area, and an HD44780-compatible LCD interface.

GPSTime is a small freeware applet that corrects your PC clock using GPS. GPSTime reads the serial data coming out of your GPS receiver and decodes the $GPRMC messages to determine the precise UTC time. Works on Windows Vista/7/8/10 with PC with serial ports.

A group for the purpose of buying-selling-trading SW receivers and scanners only. Free and mainly for individuals.

The place where Marconi received the first transatlantic signal

Allow the reception of amateur signals on domestic AM-only short wave receivers article and project by VK3YE

Article on RTL SDR dongles to receive UHF VHF ham radio bands

Build a Receive 4 Square Array! Make your own 160 meter 4 square receive antenna.

US amateur radio antenna manufacturer, design and build monoband, dual band and multiband Yagi Antennas for HF bands as well as receive antenna systems

This Radio Direction Finder Device Connects to an FM Receiver, Transceiver, or HT

The RadioFrequency Program is a professional Software dedicated to all HAM, SWL and Radio Listeners. Freeware. Included is a Text-CSV dBase Converter. Connection to the ICOM R8500 Receiver. Special Scanning Feature. Special Search Feature x large dBase.

80 metre superhet SSB receiver project

This wiki is intended to help identify radio signals through example sounds and waterfall images. Most signals are received and recorded using a software defined radio

A simple free running oscillator oscillating at the receiver\'s IF (intermediate frequency) beats with the incoming signals in either CW or SSB and the resultant audio frequency goes to the AF amplifier.

M1HOG Direct Conversion Experiments

Online websdr receiver based in Rome Italy provides a nice user web interface and receiver most of the amateur radio HF bands

A project with schematic to build a receiver for 80 meters band by VK1PK

TenTec Receiver RX 320 D Review by DF9CY

The 80 metre fox-or/test transmitter is a small low power transmitter which is designed to be used as an alignment aid for running up 80 metre foxhunt or ARDF receivers. It is also usable as a micro transmitter for fox-or-ing events.

A simple accessory for a satellite station, that allows using a 6 meter capable radio in conjunction with a typical S-band to 2 meter converter

Complete guide to receive weather satelite images with a RTL SDR dongle and free software

A full superhetrodyne SSB fox hunting receiver kit

What may be received from africa in north-west of france, french and english data

The idea makes use of a very simple direct conversion receiver on the band of interest.

Sorted by Intermodulation. Best receiver first. This is a measure of how badly a close-spaced signal will trash your receiving with spurious signals or splatter sounds,

How to run an SDR Receiver on the Android Google Nexus 7 using SDR Touch App and an RTL-SDR dongle, review and costs by IW5EDI

Collection of several Crystal Radio receiver circuits with schematics diagrams and pictures

Wavesink Plus is an Android based RTL-SDR receiver app with a free trial and paid full version, can decoding DAB+ and DRM+ digital radio signals.

Sell 2-Way radios and Accessories. Amateur Radio, Business Radio, CB Radio, FRS & GMRS, MURS, VHF-Marine Radio, Shortwave & Wideband Receivers, Police-Scanners in WA Usa

An illustrated modification for the Icom IC-R20 receiver to locate and use the unfiltered audio.

Kenwood TS-2000 Transmit / Receiver eSSB Modifications by N3GX

ICOM IC-R20 Portable Receiver review by Bob Parnass PDF File.

80 metre ceramix VXO with schematic and assembly instructions

A live map of current KiWiSDR receivers available on the network. It allows users to explore a directory of web-controlled receivers for listening to HF and VHF stations worldwide. The site provides access to remote ham radio stations online, making it a valuable resource for amateur radio operators.

Software defined radio products. Maker of AFEDRI SDR a direct sampling Software Defined Receiver by 4Z5LV

A nice tutorial and the basics of the software defined radio, SDR, and links of software defined radios to JTRS, and general SDR receiver technology.

This converter uses the popular NE602 mixer/oscillator chip and allows reception of signals below 500 kHz on a 3.5 – 4 MHz HF receiver

Designed to handle audio signal interfacing as well as transmit/receive switching Reviewed by Steve Ford, WB8IM

Breakaway Pipeline allows you to send audio to or from another program on the same computer. This will permit to forward audio streams, virtually like connected via a cable taken form any radio receivers, like online web sdr or your digital modes receiver like WSJT-X or fldigi to anther application running on the same PC.

A simple direct conversion receiver for 80m. The receiver covers 3.51 MHz - 3.60 MHz and 3.64MHz - 3.71 MHZ - CW and Phone portions by M0DGQ

Friis-It NF is the first iPhone OS based application that allows you to calculate noise figure, system sensitivity, and cascaded gain for an RF Receiver system