vlf receiver

Antenna Diversity - Single antenna with multiple polarization for diversity, diveristy receivers and propagation effects on signal polarization

WebSDR in Rhode Island USA - N8LI WebSDR receiver on 40 meters band from Rhode Island USA

160m WebSDR from Poland - WebSDR receiver in Wroclaw, Poland. Antenna is 160m inverted-L 12m height.

WebSDR from Slovenia - A WebSDR receiver located in Novo mesto, Slovenia, qth JN75NT operating 40 and 80 meters bands

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

Cross Country Wireless SDR Receiver  ^updated - SDR Receiver a compact high performance HF software defined radio receiver designed to be used in fixed or portable stations. Version 2 of the receiver is now available. It now has an RF pre-amplifier using a power MOSFET and other revisions to improve it's performance both as a stand alone receiver and as an IF panadaptor with HF and VHF transceivers.

Software Radio Laboratory LLC - Makers of SRL QuickSilver QS1R Receiver

ulfelf : Ulf Elf Group - Ulf Elf Group. Exploration of ULF, ELF, VLF Radio with emphasis on natural radio signals, the Schumann resonances, earthquake precursors, etc.

Receiver Tests - Receiver tests of some transceivers and receivers including FT-1000, FT-2000, IC-751, IC-756 IC-7800 and TS-870

MPFilters for FT-1000MP - MPfilters is a Windows-based program which enables you to select the Yaesu FT-1000MP and FT-1000MP Mark V main receiver and sub receiver IF filters via the radio’s CAT port

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

QST Reviews Key Measurements Summary - QST Magazine Product Reviews - Key Measurements Summary - HF-Transceivers or Receivers. Compares Yaesu FTDX5000, Elecraft K3, Flex 5000 and Kenwood TS-590S

Yaesu VX-2 jumpers - This walkie is sold without the wide band receiver enabled, this is, only 144 and 432 MHz band

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

CuteSDR - CuteSDR Open-Source application for MacOSX , Linux, and Windows designed to run with RFSPace SDR receiver

ControlSoft AR5000 - The software controls a communication receiver AR 5000 designed by AOR. It allows controling the receiver via a PC using a serial port

R-20 Signal Capture and Analysis Software - Connect your R-20 Communications Receiver to your computer. Put your listening hobby on your computer desktop.

The BBRC Frequency Counter - The Burnham Beaches Radio Club frequency counter is a PIC micro controller based frequency counter with LCD readout. It can be used stand alone or the in built offsets allow integration into a receiver

20m CW QRP Transceiver - The direct-conversion receiver uses an audio-based automatic gain control, an LC tone filter, and a 100-kHz crystal for frequency alignment. The same VFO is used for transmitting and receiving by DC1YB

Bartling RX-40 Receiver - Circuit Diagram and Construction of the Bartling RX-40 Joachim Münch DF4ZS

A Simple Receiver - the DC40 - A beginner's direct conversion receiver

VXO 80 metre receiver - 80 metre ceramix VXO with schematic and assembly instructions

30 m Band Direct Conversion Receiver - 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.

An SDR receiver project - A project for a SDR receiver by Juan Domenech Fernandez

SDR hardware architecture  ^updated - Essentials about the key areas of importance for the software defined radio SDR hardware and the SDR hardware architecture used.