websdr app

Baluns - by ON9CVD - The simple 1 : 1 balun is being know in a variety of constructions. A dedicated chapter seems appropriate

80-10 m multiband wire antenna - G8OFZ multi-band antenna for 80-10m, this antenna appears to be a derivative of the Doublet and the Classic G5RV

Rubber duck portability with quarter-wave performance - This article describes an application of Tucker's design which results in the most satisfactory two meter portable antenna this author has ever used.

PI5EHV-8 DX Cluster - Access to PI5EHV-8 DX Cluster via this java application

Murfreesboro Police and Fire Dispatch Live Scanner Audio Feed - Murfreesboro Police and Fire Dispatch Live Scanner Audio Feed on RadioReference.com

Rutherford County Sheriff and Fire Live Scanner - Rutherford County Sheriff and Fire Live Scanner Audio Feed on RadioReference.com

Tucson Police and EMS Live Scanner Audio Feed - Tucson Police and EMS live scanner audio feed on radioreference.com

WebSDR in Eindhoven - This is a WebSDR receiver, located in Eindhoven, the Netherlands.

WebSDR in Czech Republic - 80 meter WebSDR receiver by OK1KPU in castle Doubravka Czech republic

WebSDR in Canada - WebSDR receiver located at the University of British Columbia Amateur Radio Society by VE7KA

ASC Signal - Global manufacturer of Satellite Earth Station, Air Traffic Control Radar Antenna and High Frequency Antenna products for broadcast, government and enterprise satellite communication applications.

Twin Antennas - Professional antenna manufacturing company promoted, by experienced engineers. Manufacture antennas and accessories for broadcast and communication applicati

Cmpter Electronics - Cmpter Electronics is specialized in designs and manufactures RF Coaxial Connectors, RF Adapters, Cable Assembly and GPS Antennas for applications in the datacom/telecom, automotive, instrumentation aerospace and defense markets.

QRP 1:1 Current-type Balun for Portable Use - A ferrite-loaded coaxial RF choke which just happens to yield the same result as a 1:1 current balun

How Satellite Doppler Tracking Works - The Doppler Effect allows the distance between a satellite transmitting from space and a radio receiver on the ground to be measured by observing how the frequency received from the satellite transmitter changes as the satellite approaches, passes overhead, and moves away.

PExprt - Tool for magnetic component design and modeling. Design and modeling of magnetic components such as inductors, planar transformers and integrated magnetics used in power-electronics applications.

NFM - noise figure measurement - NFM (for Noise Figure Meter) is a software application to assist Noise Figure measurement. NFM implements the method of Agilent application notes AN 57-1 and AN 57-2 for noise figure measurement, but with the addition of an adjustable attenuator after the noise source and between the DUT and instrument.

Pyhamclock - Pyhamclock is a simple application that shows a useful display of both the UTC date and time and your local date and time.

DX_Central - Get DX_Central a compact desktop application to display latest solar statistics and images from NOAA, NIST, and other solar observation agencies. For Linux and Windows by AD5XJ

I-PSK31 - Ipsk31 is a modem based on Bpsk31 protocol for ham radio digital transmissions. Can be used on IPhone and Ipod Touch, and let you transmit and receive PSK31 directly from your Apple device.

Friis-It NF for iPhone - 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

PCB with kitchen appliances - Cheap and relatively easy way of making professional quality printed circuit boards at home

Digital Wattmeter - 300nW to 30W - The digital wattmeter project was created for the purpose of measuring power in the range of 300nw to 30w.

Ferrite in EMC applications - Electro-magnetic compatibility EMC issues arise when electronic systems interact in an un-desired way

AC power meter - Measure the AC current flowing through your appliances