dc power supply

DirectionalBiQuad - Seattle Wireless - A biquad is a fairly powerful antenna which is relatively easy to construct, with impressive performance for their size. A link greater than 5 miles can be made with a pair of these as a stand-alone antenna and a Prism2 100mW card, provided you keep coax short, and your line-of-sight is clear.

Radio 2 Radio Blog - Radio 2 Radio broadcasts amateur & HAM radio news and current events from around the world.

W7TDC Trevor - Personal site and web log

Handiham Blog - Ham radio for people with disabilities provide podcast and blog

Maha / Powerex - Portable electronics, amateur radio, pro audio and digital cameras batteries, chargers and conditioners.

Kiwa Electronics - Kiwa Electronics is a company that specializes in accessory equipment for the radio enthusiast. Our products include Filter Modules to improve receiver performance, a High Performance Medium Wave Air Core Loop Antenna for improved broadcast band reception, the Pocket Loop Antenna, the Earth Monitor, BCB Rejection Filter and Broadband and SW Preamps. We also offer numerous performance upgrades for popular receivers.

BEKO Elektronik - VHF power amplifiers made in germany

RFAC Solutions - RF Connectors Cable Assembly Attenuators Filters High Power VHF Amplifiers, Adapters MMCX MCX SMA SMB SMC BNC TNC N from RFAC Solutions

Hy Power Antenna Company - Full size or shortened dipoles, Single band or Multi band, Half Square Antennas, Fan Dipole Antennas, Delta Loop Antennas, Antennas completely assembled Loading coil packages, delta loops

TET-Emtron - Australian antenna manufacturer specialise in supplying amateurs with the best quality products. Amateur radio multiband Yagi antennas, balums, cb antennas, dipoles

Electronika Int. - Electronika manufacturers Coaxial Cable Assembly, RF Connectors, Adapters, Power Dividers, Couplers, Crimping Tools

SAT-Service Schneider - Digital radio mondiale DRM products, measuring tools, Magnetic field probes, RF power meters, Broadband loop antennas, DRM devices and services

Nissei - VU Meter, Analog Meters, Panel Meter,Multi-Meter, SWR meter, power supply, power meters

AN Wireless Tower Company - AN Wireless is a manufacturer and distributor of Self Supporting Tower Systems for Wireless Communications, Wireless Internet, Wireless Networking, Microwave, Paging, Broadcast, Two-Way Radio and Amateur Radio.

CPI Eimac Internet - Innovators in Power Tube Technology

F5VLB amateur radio astronomy station Priority listing - F5VLB and EA4EOZ have designed a small but powerful system using satfinder and standard LNB to make radioastronomy. A step by step descritpion for the novice about radioastronomy, VLB and listening to echo of meteorite.

FT817 DSP noise reduction noise - Add-on audio DSP unit from BHI

Heston Supply - Adapters, Antenna and Antenna Parts, Coax and Wire, Connectors from Longview WA

Reimesch - Ham radio dealer based in germany offer RF power amplifiers, from Alpin and SPE, antennas, RFI suppression products and GSM GPRS products

Welcome to VIS Amateur Supply - Vis amateur supply, largest independent dealer for several major brands of amateur radio accessories, and publisher of 'vis study cards' and the 'sam amateur radio callsign database'. Coffeeville, AL USA

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.

Cobalt pet: shortwave weblog Priority listing - Cobalt Pet is a weblog focusing on shortwave radio. It features shortwave reception reports, product reviews, photos, listening tips, and links. International broadcasters and amateur / ham radio operators are monitored and discussed.

ID Wizard - ID Wizard is an ID timer with system clock setting and miscellaneous tools. Tools includes Notes, a full-featured “text” editor, Calculator, Calendar for sun/moon times, Time Zone Browser Conversion Utility Area, Distance, Mass, Power, Temperature, Time and Volume, Trace Route, Ping and WhoIs

Ameritron AL-80A modification - W7TDC modification of the Ameritron AL-80A power amplifier

A CW TX for 80 meters band - This simple circuit will give about 1.2 Watts of output when powered from a 13.8VDC supply.