ac voltage representing

Portable Rabbit-Ears Dipole Antenna - This handy and cheap portable dipole can be folded and backpacked, carried in use, and adjusted to a very wide range of frequencies by KV5R

VK3RMH ham repeater and beacon - Running 10 and 6 meters beacons, 6 m and 70 cm fm repeater from Melbourne, Australia

WJ5O Beacon - TX on 28.289MHz since 1992

C6AMS Bahamas DX Pedition 2010 - Online log and live audio from NA6M/C6AMS, N5BW/C6AMR, K2CK/C6ASH, K5AB/C6AAB and W5ETY/C6ATY will be active from Eleuthera Island, Bahamas (IOTA NA-001)(Grid FL15)9 July to 25 July 2010. Operating on 160-6m CW, SSB and Digital Modes

DXCC spreadsheet - Excel spreadsheet that helps you trace your status of DXCC entities. You only have to fill the cells with your worked and confirmed entities and the totals will be automatically updated. You don't have to make any calculation

AZDEN - Makes a wide range of portable and AC-powered wireless microphones

QRO Technologies - HF amplifiers manufacturer

California Amplifier - manufacturer of solutions for worldwide wireless broadband communications

Shakespeare CB antennas - Shakespeare Composites & Electronics Division manufactures a complete line of unmatched CB, CB marine, and military antennas for a veriety of applications.

Advanced Communication Sys - Repeaters, transmitters and receivers manufacturer for ham radio and commercial applications

Heil Sound - Microphones, headsets and accessories

Ritron - Vhf Ufh transceivers, repeaters, Telemetry Scada Systems and accessories

Aurora Status from Alaska - The aurora today, ground view from alaska

Ionospheric Group - UK RCRU ionospehric group researches

Stanford Solar Center - Providing solar on-line activity resources for the joy of solar science exploration

Sunspot answer book - Mr Sunspot's Answer Book National Solar Observatory Sacramento.

Pactor news - A Ham Radio Newsletter dedicated to HF communications and the PACTOR user

Weather Radio Frequencies - Weather Radio Frequencies across the U.S.

National Weather Service - Some little known facts about the NOAA Weather Radio system

Amateur Weather Satellite Imaging - Images and Radio Shack composition

Digi key - Digi-Key offers over 1,000,000 electronic components from more than 360 manufacturers.

Radioman - Freeware dos VHF/UHF Logbook morse code facility, kenwood transceivers interface, moontracking, distance and bearing calculators by DF9CY but discontinued and unsupported

AREPS propagation programs - Collection of various propagation software by Space and Naval Warfare Systems Center, San Diego, Atmospheric Propagation Branch

Pathloss Calculation and EME - Java free space pathloss calculation and EME

Amateur Repeater Builders - Radio Mods, Technical Data, where to Purchase Equipment Amateur Repeater Coordination. All you need to build a repeater