hf propagation

Sporadic E research Challenge F8SH - Challenge for the promotion of VHF contacts via Spor. E - from 1 may to 30th of September 2001

Radio H.F. Catalogue - General and shortwave radio newsletter

ON7VZ Daniel - Site dedicated to 6 meter and VHF

The DK5YA VHF Page - Concentrating on VHF DX, Aurora, Meteorscatter, TEP, Sporadic E, EME, VHF DXpeditions. Daily updates.

Vhfdx.de - Eme meteorscatter Aurora Fai Tropo Tep and more about VHF

The DK5YA Vhfdx Page - The DK5YA Vhfdx Site is dedicated to the serious VHFDXer, serving the Web for more than 5 years for all of those working Aurora, Meteorscatter, FAI, EME, Tropo, TEP etc. on 50 MHZ and up.

The Vhfdx Chat - Vhfdx Chat is dedicated to the serious VHF DXer. Meet VHFDXers from all around the world, discussing EME, Meteorscatter

VR2HF Online Yaesu FT-817  ^pop Priority listing - Online Yaesu FT-817 transceiver (receive only over the Net) using R.A.T.S. control software and MS Netmeeting for program access and audio. Asia's first online receiver, first online FT-817, and worlds first full-featured online receiver (operates just like a desktop radio including audio encoding time of less than 1 second). Operating from a flat in Kowloon, Hong Kong. Open to all.

Hi-Q Antennas - HF Ham Radio mobile operation antennas manufacturer, W6HIQ, HA5CMG, VE7BOC, HF mobile antennas, screwdriver antenna, coils and filters.

Spectral - High End isopole VHF & UHF antennas for Amateur, Commercial and Military applications.

ITU CIRAF zones maps - Online CIRAD zone maps by ITU

Eme Gallery - Images of VHF UHF antennas

Repeaters in Ecuador - Frequency, location and coverage of repeaters in Ecuador.

G0ISW VHF/UHF DX Homepage - VHF/UHF DX site showing latest propagation, software, radio dealers, awards, maps etc.

W1AW Propagation Bulletins - W1AW Propagation Bulletins for 2001

Propagation Prediction Tool - This is a propagation prediction program tailored to the serious contester

Yaesu FT-101 HF Transceiver - Yaesu FT 101 unofficial web site managed by NW2M

Todd Emslie's TV FM DX page - Australian page featuring 45-108 MHz VHF DX via Es, F2, and TEP propagation.

ICDX Australia - Australia's only TV FM VHF DX group for world-wide members.

Ariel 30 - HF wire antenna design program by WB4ZYA for DOS

PropView - PropView is a free application that uses the included VOACAP, ICEPAC, and IONCAP engines to graphically display band openings between two locations over a specified 24 hour period. It can also build schedules for the IARU/HF beacon network and automatically QSY your transceiver to monitor each scheduled beacon.

WSJT High Speed Meteorscatter - "Software uses four-tone frequency-shift keying for meteor scatter. WSJT stands for ""Weak Signal communications, by K1JT"", and plans call for the program to include more than one communication mode."

Monteria - International Commercial supplier of HF, VHF and UHF signals analysis and receiver control hardware and software

Beacon-Time Wizard Priority listing - BTW is a group of beacon information views and tools to enhance the enjoyment and usefulness of the NCDXF/IARU International Beacon Network and HF radio operation.

How modify a CB linear to use in HF band  ^pop - how to modify a Cb linear amplifier to use in HAm HF band