signal analyz

Build An LF Antenna Analyzer - A Portable Low Frequency Antenna Analyzer, For those of us who like to play with antennas on the ham bands, one of the handiest tools to have around the shack is an "antenna analyzer". These gadgets combine a signal generator and standing-wave ratio (SWR) sensor in a small battery-powered unit.

The K6STI Receiving Loop - This relatively unknown antenna does an amazing job pulling weak low band signals out of man-made noise backgrounds

802.11b Homebrew WiFi Antenna Shootout  ^pop - Guide to homebrew your wifi antenna, using a tin can, in this cases using a pringles can. This antennas are also known as cantenna and let you spread your wifi signal.

Mobile 2.45Ghz antenna - A prototype 2.45ghz antenna for mobile use. This antenna has been u sed for surveying signal strength using a variety of free wlan tools.

DirectionalWaveguide - Seattle Wireless - Waveguide antenna is a type of DirectionalAntenna and is a modified waveguide. A waveguide is simply a tube, either rectangular or cylindrical in cross-section, that will carry a microwave radio signal with very low signal loss

Antennas by Antenex - Signal Propagation Systems, mobile HT base antennas

MicroSignals - MicroSignals produces a line of RF and IF signal processing components that offer high performance at an exceptional value. To achieve this MicroSignals began with an engineering team that possessed an excellent background in RF Transformer and Balun design.

W&W Batteries manufacturer - U.s.a. manufacturer of replacement radio batteries, battery packs, inserts, chargers, analyzers, and battery eliminators for the public safety, land mobile, amateur radio and cellular phone industry.

Bitscope - An affordable high bandwidth mixed signal pc based digital oscilloscope logic analyzer.

JT65 - JT65 is a digital protocol intended for Amateur Radio communication with extremely weak signals. It was designed to optimize Earth-Moon-Earth (EME) contacts on the VHF bands, and conforms efficiently to the established standards and procedures for such QSOs.

Unusual HF Propagation Phenomena - This page has a collection of audio samples from unusual HF propagation phenomena, from round-the-world propagation to moonbounced signals , and to ducted transmission.

FT-1000D: The G3TKF Synchro Mod - If you have an FT-1000 with the BPF-1 option, and are into HF weak signal DXing, this is for you. Although not for beginners, it should be no problem for hams with some home building experience.

SignaLink SL-1 and Yaesu FT-817 - The SignaLink has been used with virtually every radio available, but the radio that is heard mentioned most often is the Yaesu FT-817

Yaesu VX-5R Review - Strong signals review of Yaesu VX-5r

Strong signals - Yaesu VX-5R - Yaesu vx-5r vhf/uhf transceiver specifications

Batterytech - Buy nimh, ncicad, and li-ion batteries, chargers, and analyzers for laptops, pdas, digital cameras, cellular phones, nextel radios, hand held scanners, and eliminators

Dynamic Signal - The Largest Selection of Cable Assemblies and Accessories. Coaxial Cables, Fiber Optic Cables, Connectors, Attenuators, Terminators, and Tools.

Durham Radio - Durham Radio stocks a wide variety of Amateur radio products by ADI, Alinco, Alpha Delta, Ameco, Ameritron, ARRL, Bencher, Comet, Cushcraft, Daiwa, DCI, Galaxy, Heil, HyGain, Icom, Iron Horse, Kenwood, Larsen, Maldol, MFJ, Opek, Palstar, Procomm, Pryme, Ranger, Signal Links, Tigertronics, Valor, Vectronics, Vertex Standard, Workman, Yaesu.

Grandicelli - Hf-vhf-uhf-shf-digital-monitoring-site,wavecom Decoder and tools, winradio and DRM decoders, WD3000 Direction Finding System , radioraft software. PFSL3000 Integrated HF-VHF-UHF signal monitorin

Kitmondo: used test equipment - Kitmondo is an online marketplace for used test equipment and measurement equipment including analyzers, oscilloscopes and generators equipment.

SignalGen - SignalGen is a free (GPL) Linux (Xwindows GUI-based) utility that generates relatively low frequency signals with the use of a PC sound card. It is an entirely suitable replacement for a hardware signal generator if one doesn't require signals of a frequency higher than about 50 KHz. SignalGen creates any frequency between a fraction of one Hertz and an upper limit determined by your sound card's capabilities.

FFT Explorer - A free (GPL) Linux (Xwindows GUI-based) utility that performs spectral analysis on real-time data from a sound card or other source, and can analyze the spectra of various sound file types. It can also accept data from many kinds of applications in plain-text form by way of the "named pipe" feature of Linux

QST signalink review - SL-1 - Designed to handle audio signal interfacing as well as transmit/receive switching Reviewed by Steve Ford, WB8IM

Display/Stabiliser unit - The Display/Stabiliser unit displays the signal frequency on a Hitachi LCD module.

Rainbow Antenna Analyzer - A small and inexpensive measurement device designed to determine antenna performance across the amateur bands through use of automatically collected SWR readings