dc converter

Trap dipole for WARC bands - Diamond W8010 Multiband Dipole Modifications

G4DCH Mobile Antennas - Designing and Building HF Antennas for mobile use

Resonant Frequency Podcast - The Amateur Radio Podcast by KB5JBV

SE Engineering - Manufactures FM antennas, mast ground kits, 75 ohm isolation transformer, for the broadcast industry.

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

RFTec - Coax Cables and Connectors, DC to 40 GHz RF cables & test cable assemblies, surge protectors, SMA connectors, adapters and termintators

Martek Power - Martek Power designs and manufactures a wide of high performance power supplies for various industries. Power supplies AC-DC, DC-AC inverters, DC-DC, EMI Filters

Icom ACC1 interface - Need to interface both a TNC and the computer soundcard? This is a ICOM 756PRO ACC1 audio/keying/FSK interface by WA0SXV

FT-817 DC Circuit Protection - A schematic for a DX circuit protection for the Yaesu FT-817, provides protection from the external power supply overvoltage by DL2LTO in german

A 2.3GHz to 432MHz receiver converter - Receiver converter that can be plugged to the backside of the Yaesu FT-817 battery powered portable transceiver

RSGB FT-857 Review - RadCom Jun 2003 review of the Yaesu FT-857

Mini Circuits - RF / IF Microwave components DC to 20 GHz

Offhsore radio club - A group trying to collect, save and spread amongst its members as many of these broadcast programmes as possible

Radio Seagull - Broadcasting from the ship the Jenni Baynton moored in Harlingen Harbour in the Netherlands, Radio Seagull can be heard on 1602 KHz AM

ScannerCast - Lets you listen to your scanner across your own network, or via the internet. Shoutcast/ICEcast compatible broadcasting for Uniden and GRE scanners. Broadcast your audio from your PC.

SHOUTcast DNAS - Broadcasting your radio from your home using the SHOUTcast Radio DNAS Application

UStream Producer - Broadcast your audio and video or even desktop via ustream.tv using Ustream Producer free version

Unreal Media Server  ^updated - Stream your radio audio output with free version on unreal media server. Support live audio and video broadcasting via internet

GridLocW - GridLocW a Lat/Long to Maidenhead converter for Windows with optional GPS support

ADIF2CABR - Freeware Adif to cabrillo converter by SP7DQR. Windows ADIF 2 Cabrillo log format converter application let you translate you contest log book from the standard ADIF format to the Cabrillo format.

400 W RF Power amplifier for 144 MHz - G4DCV's 144MHz amplifier with a pair of GI-7b Russian triodes

Regenerative receiver for the AM band - Build the Moorabbin, a regenerative receiver for the AM broadcast band by Peter Parker VK3YE

ICOM SoundBlaster Interface - Interfacing ICOM radios with PC soundcard by W8WWV

Big Dummy's Data Interface - Simple soundcard data interface for the various data modes

2M to 10M receive converter - EI9GQ 144 to 28 MHz converter