4 meter

PV5 Yagi antenna for 20m - 5 elelents yagi beam antenna for 20 meters band by T93M

PV4 4 element Yagi antenna - PV4, W2PV 4 element Yagi antenna as described in ARRL antenna handbook 15th edition for 20 meters band by T93M

The Gain of the Axial-Mode Helix Antenna - by Dr. D.T. Emerson, National Radio Astronomy Observatory (NRAO++). Antenna Compendium Volume 4, pp 64-68, 1995, published by the ARRL.

Ferrite antenna for LF - A ferrite antenna for Low Freqencies

Folded Dipole  ^pop - All about folded dipoles, a variation of the dipole is an antenna called a folded dipole. It radiates like a dipole but sort of looks like a squashed quad.

Projects and Info Center - Antenna projects and info center by KP4AO, including The Optimized Wideband Antenna (OWA) Yagi and Skyhawk, a state-of-the-art trapless tribander

14 SD 057 Jacques - CB, Hamradio informations & more ...

Surfing my World - Something aboutme where I come from with interested links and about the Charlie Sierra DX-group.

Home page 14MU 174 Max - home page 14MU 174 Max

Nienberge Amateur Radio Group Germany - "The Nienberge Amateur Radio Group a subdivision of the DARC - German Amateur Radio Club; our group's number is ""N 46""."

Madison County, Kentucky, ARES - This is the Home Page of the Madison County, Kentucky, ARES organization, with links to other Kentucky related Amateur sites.

ON4CIP Filip - ON4CIP Amateur Radio Station

Comet Antennas  ^pop - Distributor for COMET and MALDOL brand antenna products designed, manufactured in Japan. Distributor of DAIWA brand RF SWR/power meters and switching power supplies.

Timeware tech. - Amateur Radio Products, Noise Reduction Filters, Data Controllers, deviation meter, Software, DSP-RTTY

CUBEX - Quad Antennas by CUBEX, Cubex currently offers Cubical Quad antennas for 2 meters through 40 meters.

Arrow Antennas - Hand held portable, 6 meters and satellite antennas

AEA - AEA Technology Inc. is a pioneer and leading manufacturer of RF and cable test equipment for the wireless, Telco, CATV, NMR & MRI, RFID, telemetry, aviation, commercial, military, and two-way radio industries. Produces SWR Meters, Pre Amplifiers, filters, power meters and antenna testing products

Linux DStar Development - The life and times of development of a Linux D-Star repeater and dplus node.

Amateur Packet Radio Networking - Packet Radio Networking Information by CQ Magazine Packet Editor Buck Rogers, K4ABT

Electronic Service Pros  ^pop - HAM/Broadcast, Modifications & Repair, D-104 mods, TS-830 TS-530 mods

DOS programs by g4fgq - Small collection of DOS antenna design and RF calculations programs

BTL Blaster TeLetype - High performance RTTY reception and transmission software, need a Sound Blaster compatible sound card.

Charly 4.0 - WRAASE Slow-Scan-Television (SSTV) commercial windows software, need an external hardware, SC-4 to work.

YC156 Conversion - RF Amplifier project modified the original chassis to use a 4CX1000A instead of a YC156 triode

SWR Mega - SWR Power Meter - SWR and RF power meter for home usage, 8 different RF probes with different characteristics and power ranges by OK1DX