differential mode rf cap

50 MHz Antennas by DF9CY (4 & 6 Element)  ^pop - Two well performing 50 MHz antennas designed with W7EL EZNEC along to many other antenna projects and related articles

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

Romeo Fox Dx Group USA - Membership Info no cost to join

OH2GI Ham System - All-mode contesting and logging software system designed primarily for on-line operation of HF digital and CW radio stations through Terminal Node Controllers (TNC)

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

IOTA EU-110 Log St Nikola Isl - 9A/I2OGV, 9A/I2RFJ, 9A/I2ZBX, 9A/IZ2LSC 2010 dx pedition online log

HF Hamtrader Nes - Trader net frequencies

The Amateur Radio Flea Market - Treffpunkt Amateurfunk (German)

RSGB Region-12 - RSGB Region-12 Website for Cambridgeshire, Bedfordshire, Norfolk, Essex, Kent and Suffolk.

PD2RFU Jeroen - PD2RFU by Jeroen GoedĖl Fox United, Formula 1, Motors, links and all about ham radio

Signal Engineering - Signal Engineering technologically advanced antennas with modern design and construction technique. Up to date information about current line of high performance 10 and 11 meters antennas.

Tesoel - RF-and Microwave Coaxial switches and relays

Mirage - VHF and VHF amplifiers including repeater rf amplifiers

US Tower - US Tower Corporation will build your special tower to your specifications. We are capable of producing just about anything you need.

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

Keplerian Elements - Keplerian elements are the inputs to a standard mathematical model of spacecraft orbits.

Current Aurora status - The Aurora in near real-time from Sweden

High Frequency Propagation Models - Institute for Telecommunication Sciences High Frequency Propagation Models

The Sunspot Cycle - Sunspot Numbers, The Butterfly Diagram, the Greenwich sunspot data and sunspot realted infos.

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

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

XPacket - Packet-Radio-Host-Terminal - Packet-Radio Host-Mode-Terminal for DOS works also fine in Windows-DOS-Box. Lots of functions, includes userdatabase Name, distance, direction, qth, call, alias.

HF Propagation Models from NTIA ITS  ^updated - Windows-95/98/NT 32-bit HF Propagation Models from NTIA/ITS

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

RF prop  ^pop - RF propagation software