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Expert Electronics LLC is a manufacturer of modern and compact SDR transceivers. EE develops and produces modern radio-electronic devices based on SDR (Software Defined Radio) for radioamateurs and professional applications. Makers of popular SunSDR models and SunSDR-MB1 transceivers

TinySDR for 80m band and ZetaSDR for 40m band

How to cheaply track ships using AIS and a cheap $20 software radio.

A self-contained and portable SDR Transceiver using a Softrock front end and embedded Digital Signal Processing ... No PC required!

Adding a Panadapter to the Yaesu FT-817

Audio and waterfall images of some sounds found on the RF spectrum

Windows Software Defined Radio SDR for analogue and digital modulation types. Can decode AM and FM+RDS radio as well as DRM/DRM+ and time signals DCF77/HBG. Sodira supports the use of the RTL-SDR through use of the ExtIO_RTL2832.dll module. Demo version available.

RTL-SDR is a very cheap software defined radio that uses a DVB-T TV tuner dongle based on the RTL2832U chipset. This is a blog about rtl-sdr, software defined radio and their developments and applications.

Setting up a Raspberry Pi as Remote Server for RTL2832u SDR

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

The Peaberry SDR is the first and only do-it-yourself transceiver that doesn't require adding sound cards to your computer.

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

Chinese manufacturer of Software Defined Radio for commercial, public and amateur radio market. Markers of H1 H1Plus H2 Q900 SDR transceivers

A High-End UHF Preamp for the VHF/UHF Dongle

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.

Download free skins for PowerSDR, a SDR client appliction. Skins provided by W1AEX

Digital Vector Wattmeters, Dummy loads, software defined panadapter systems, SteppIR Tuning Relay, Digital SWR meters, LP-Pan Pan Adapter IQ Decoder for SDR based panadapter system

The SDR-908 is a software defined radio designed specifically for portable use, without the bother of being tethered to a PC or soundcard for the modulation/demodulation processing performed in this kind of radio.

Yaesu FT-2000 Panadapter, using the Softrock 9 Lite, SDR receiver kit

This is an Android application used to remotely control several HAM radio Web SDR or any CAT enabled transceiver

GQRX is a free and simple to use SDR receiver which runs on Linux and MacOS X. GQRX comes with a standard FFT spectrum and waterfall display and a number of common filter settings

OSX/Mac and Windows versions of SdrDx. Supports RFSPACE, FunCube Pro, Andrus MK1.5, AFEDRI, FunCube Pro Plus, Peaberry, RTL sticks (RTL supported under OS X only, via this OS X RTL server) and Softrock SDR receivers.

Using the Raspberry Pi to operate Weak Signal Propagation Reporter

Dodgy plans to make Archimedean spiral antenna for RTLSDR software defined radio receiver. Made of two equal lengths of coaxial cable seems to be the easiest circularly polarized antenna to make that will cover a broad range of the rtlsdr dongles E4000 tuners

A spiral antenna experiment for RTL SDR usage.

5000+ member discussion group for the low-cost series of SoftRock SDR receiver and transceiver kits.

Recepteur decametrique 3 - 30 MHz Detection classique et SDR

Software Defined Radio Projects, HF Receivers and Transceivers projects by YU1LM/QRP

Software Defined Radio manufacturer, SDR-IQ NetSDR SDR-IP and IF-2000

The RasHAWK team has used a Raspberry Pi as the basis for a networked RF sensor capable of supporting spectrum monitoring, signal intercept and direction finding (DF) operations.

The instructions listed here show you how to set up a Raspberry Pi for use as an RTL-SDR dongle server

low-noise amplifier for HF reception, amplifies signals 80 to 100 times between 0.15 MHz and 30 MHz. It will let you hear more signals with your RTL-SDR plus Ham-It-Up setup

Round-Up of different HF Upconverters for RTLSDR by KF7LZE

Shortwave radio receivers review site featuring radios by JRC AOR Icom Kenwood Lowe Yaesu Perseus SDR CiaoRadio SDR Drake Hagenuk Sony Kneisner&Doering Reuter and RadioJet

Ham radio shop for APRS digipeaters WX3in1, RPTC, GSM devices, SDR software defined radio producrsa, APRS trackers and GPS Receivers based in Poland

SDR-Radio.com is a Windows console for Software Defined Radio (SDR) receivers and transceivers. Designed for the commercial, government, amateur radio and short-wave listener communities, the software provides a powerful interface for all SDR users

Reviews of the mosto popular SDR Transceivers in the market, like Flex Radio, Elecraft, Cube, Softrock

How to receive JT-65 signals using a cheap RTL-SDR dongle with the 820T2 tuner chip

Portuguese Antenna dealer, offer also HF Converter Kit for the SDR Fun Cube Dongle and RTL SDR sticks

PDF document for IC-7300 beginners. The ICOM IC-7300 is an HF + 6 meter, multi-mode, self-contained Software Defined Radio (SDR) transceiver with knobs, buttons and a touch screen. It also has a real-time spectrum display with pan adapter and water fall displays.

Cutting out the noise using a simple coax filter to improve the poor front end filtering

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

Software Defined Radio parts, RTL-SDR DVB-T USB Stick, cables, antennas, upconverters, leds delaer

SDRplay limited is a UK company and consists of a small group of engineers with strong connections to the UK Wireless semiconductor industry. SDRplay announced its first product, the RSP1 in August 2014

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

Studio 1 is a Paid windows SDR software defined radio application, supports Tmate and Tmate2 USB control consoles, for better tuning and control.

QRadioLink is a Linux analog/digital SDR transceiver application with Codec2 digital voice mode support.

DG8SAQ Vector Network Analyzer and VNWA multiband antenna analyzer