type of multiplexing for

Reflected W Beam - Hexagonal Wire Beams for 40-10m from DL7IO, different mono/multiband designs with building descriptions and model files for EZNEC

Old Radios - Dedicated to the collection and preservation of old radios, both tube and transistor.

International Communication Friends - Official website of the ICF group

WhiteCliffs DX Group - Started in 1998 and grew out of the new CB internet newsgroup, uk.rec.radio.cb. the Group is run on a non-profit making basis

Echo Alpha Int. DX Group - Radio group with members all over the world.The group offers free membership including use of the groups PO Box and quality QSL cards.

NA Contest - NA is an amateur radio logging program for MS-DOS computers, primarily for use in operating in amateur radio contests

County Hunter Dot Com - Site dedicated to Amateur Radio Operators interested in working the 3076 US Counties for the USACA Award sponsored by CQ Magaine

The National Traffic System - ARRL National Traffic System for routing formal written message traffic

The Northern California Net - Amateur radio traffic nets serving the northern California and Nevada areas

CT2GQV homebreing blog - The Speaky HF SSB transceiver and other homebrew projects Homebrew of radio equipment, antennas, tuner, etc.

Thames Valley Repeater Group - Thames valley repeater group homepage. information about the group, its activities and its four amatuer radio repeaters in the thames valley area

Verulam Amateur Radio Club - A Radio Society of Great Britain affiliated club

Cowtown Hamfest 2011 - Fort Worth, Texas Best Hamfest; Fort Worth best opportunity to learn about Ham Radio and visit with your friends, Cowtown Hamfest

AD4C Web Page - About ham radio hobby with hundreds of related links

The #cq11 page - This is the official web page of the #cq11 IRC channel on Othernet Network. It was created to help users on 11m. band.

Virtual Hamfest - "Virtual hamfest. Everything you would expect to find in a ""brick and mortar"" hamfest. Vendors, forums, fleamarket, etc."

Heights Tower Systems  ^pop - Telescopic towers, platforms and accessories

Olivia Modes - Olivia is a family of MFSK modes with a high redundancy Forward Error Correction system similar to MT63. General description and protocol information by w1hkj

Auroral Activity - Plots showing the current extent and position of the auroral oval at each pole

Scanlist - French manuals for HF-VHF-UHF radios.

Isis Electronics (Cheltenham) Ltd - UK Sales of used RACAL, Watkins-Johnson, Icom, Microwave. Large Qty Racal 1792 in Stock. Spectrum Analysers, UHF,VHF Generators, Network Analysers, Bus Switches.

ARMHAM-Program Map - Amateur Radio Maps program which contains maps of continents and countries.

Logger 32  ^pop - 32-bit Amateur Radio logging program written by Bob Furzer, K4CY the author of Zakanaka. Logger32 runs under Windows 95/98, Windows 2000, Windows ME, Windows NT and Windows XP Logger32 has been developed to be a highly user configurable general purpose Amateur Radio logbook with computer control support for many radios and antenna rotators.

RTTY by WF1B - RTTY by WF1B combines features of a terminal program with the features of a contest logging program, support AEA PK-900,MFJ-1278, AMT-1, HAM PCI4000/4100/3000 and many more

Schematic Database  ^{updated  pop} Priority listing - Schematic database for HAM Radios and CB Radios