hf propagation

Antennas for HF mobile operation  ^{updated  pop} - The following description should give you guidance on how to build a mobile antenna for HF bands yourself, using a very cheap CB-mobile whip antenna base. Antennas for mobile operation 7Mhz ,10Mhz, 14Mhz, 18Mhz, 21Mhz, 24Mhz,28-430Mhz

Freeland - Vacuum tubes, power grid tubes, rebuilt vacuum tubes, rebuilt transmitter tubes, rebuilt uhf klystrons, rebuilt cermolox types, rebuilt eimac types, rebuilt thomson types

75SM001 DX Portal - Radio Communications CB Radio, Ham Radio Meteorology, Propagation, Packet Cluster etc

WB4WOR Propagation Beacons - WB4WOR Propagation Beacon on 6 and 10 meters Jointly Owned and Operated by the Broadcast Packet and Repeater Group and Piedmont Amateur Radio GroupRandleman, NC USA

French Beacons  ^updated - Les balises francaises, french beacons and world wide vhf uhf shf and decametric beacon.

Chiltern DX Club - The aim of the club is to promote HF operating in Amateur Radio and to encourage excellence, particularly in DXing and contest operating. We approach this through mutual assistance, by the support of DXpeditions, by the issuing of achievement awards and by whatever other means are deemed to be appropriate.

IARU Region 1 HF band plan - Band Plan for HF Bands by IARU Region 1, effective march 2009.

MF and HF Amateur Radio Band Charts - Easy to read set of band charts for the amateur radio MF and HF bands: 160, 80, 60, 40, 30, 20, 17, 15, 12, and 10 meter by W5JCK

Tri-County Amateur Radio Club VA3TRI - Website for radio Amateurs in the Hastings, Peterborough, and Northumberland Counties of East Central Ontario, Canada. Propagation information as well as antenna designs and home brew projects and Club News. Many links to Amateur Radio information

Mobat Communications - HF-SSB radio products Accessories, Amplifiers and Antennas tuners. Established in 1995 as a joint venture between Motorola's Land Mobile Product Sector and Bartal Electronic Enclosures Ltd.

WJ Communications Inc. - Watkins-Johnson - WJ HF-1000 Receiver

Frequency Counter for VHF/UHF - DFD4A for bench top test equipment, has a built-in prescaler good to more than 3 GHz.

An HF Packet Tuning Indicator - This article describes the use of a PSK31 soundcard program's "waterfall" display as great tuning indicator for any HF packet TNC

VHF AM Operation - Notes on operating VHF in AM

Australian National VHF DX Group - ANVDG - Australian National VHF DX Group

KN4LF Daily LF/MF/HF Radio Propagation Outlook - A daily LF/MF/HF radio propagation forecast.

KN4LF LF/MF/HF Radio Propagation Theory Notes - Layman level explanations of "seemingly" mysterious LF MF and HF propagation occurrences.

Comtrek - Comtek service ICOM radios. We service most ICOM equipment from HF to UHF

Spy Numbers Stations - N2UHC's Radio Stuff - Spy numbers stations are stations on HF that transmit messages consisting of groups of numbers. Sometimes letter groups are sent instead

ADDX Schedule - Search for schedule of radio programs by selecting the language

HFCC Public Data - Operational Schedule, available for free download

CyberDX-CW - CyberDX-CW is a software simulation of an amateur radio station monitoring the world. Generates a simulated radio environment, where the operator can tune all of the HF bands and actually hear computer generated station activity

Radio Mobile - Excellent, very detailed radio path mapping software, vhf uhf propagation predictor This software is a tool used to predict the performance of a radio system.

Icom 706MKIIG mod of internal fan on rx - Unlike the old Icom 706, the 706 MKIIG HF/VHF/UHF multi-mode ham radio transceiver do not keep its internal blower running all the time in receive mode.

Yahoo! Groups : TS-850S - Welcome to TS-850S HF Transceiver Owners Group. Group designed to discuss the attributes, usage and technical information sharing, concerning this Classic Transceiver. Please feel welcome to add your questions, information and comments. We hope you enjoy the Amateur Operators "Attribute of helping ones fellow operator". Valid AmateurCallsigns only, admitted.