split. frequency operati

Amateur Vertical Antenna Calculator  ^{updated  pop} - This calculator is designed to give the vertical length (height) of a particular antenna, for the frequency and wavelength chosen.

Marconi Museum - Wireless radios from all eras Operating ham station - W1FGM Rivals museum at ARRL Hq.

Citizens Band Mid~West - A very attractive and informative site designed to promote the professional operation and knowledge of Citizens Band Radio

19 AT 318 Home page - Radiocodes, Prefix's, IOTA, Frequency's, Hot links and a lot more.

Ham Radio QSO Parties - QSO Parties held around the area. Details about making the most of the many QSO Parties. A place where planning information, operating details and technical advantages are discussed

CyberCWContest - Contest simulation: Call stations or call CQ. Program is excellent for CW contest practise or enter ongoing operating contests.

NCDXF/IARU International Beacon Network - The NCDXF, in cooperation with the IARU, constructed and operates a worldwide network of high-frequency radio beacons.

Beacon Transmission Schedule - This table gives the minute and second within each hour of the start of the first transmission of each of beacon on each frequency

Announced DX operations - Announced dx operations by By Bill Feidt/NG3K

US Amateur Radio Frequency Allocations - US Amateur Radio Band Plans by ARRL

Trivalantene - Professional antennas in MF, VHF, UHF and SHF frequency range for military applications, civil-professional market, mobile communications, radioamateurs and antennas for special applications - EMC, radiomonitoring, etc.

Optoelectronics - DTMF, RF, decoders receivers and accessories icluding computer interface boards, frequency counters, tone decoders, spectrum sweeper and nearfield receivers

International Meteor Organization - IMO was created in response to an ever growing need for international cooperation of meteor amateur work. Radio Observations.

NAVSTAR GPS Timing Operations - NAVSTAR GPS Timing Operations, USNO GPS Data & Information Files Global Positioning System Overview Current GPS Constellation, GPS Time Transfer Operations, GPS & Glonass Satellite Visibility

Introduction to HF propagation - An Introduction to High Frequency Radio Propagation by IPS Radio & Space Service

NCDXF/IARU International Beacon Network - The NCDXF, in cooperation with the IARU, maintains a network of beacon stations which operate sequentially on five bands.

Yaesu VX-7R operating manual - PDF File of the english Yaesu VX-7R operating manual

British DX club - Information about the BDXC and how to join, including a club-compiled list giving time and frequency details for all English language dx and media programmes

Frequency Manager for Windows - A Windows program for Storing, Sorting, Searching, & Printing Frequency Lists.

CQRLOG - Advanced ham radio Linux logger based on Firebird database. Provides radio control based on hamlib libraries, DX cluster connection, QRZ callbook, a grayliner, ON6DP QSL manager database support and a most accurate country resolution algorithm based on country tables developed by OK1RR. CQRLOG is strongly focused on easy operation and maintenance.

RadioRaft  ^pop - RadioRaft decodes 10 different ARQ modes, 8 different FEC modes, Packet, Baudot, CW... It works with a Hamcomm interface or a radiomodem. RadioRaft offers automatic detection of modes, speeds and shift. It comes with a frequencymeter/baudmeter included, it has signal frequency tracking and a bit by bit display mode. Very easy to use. practical and fast.

Radio Propagation & Diffraction Calculator  ^pop - This is a radio frequency propagation calculator for the transmission path between an RF transmitter and a receiver.

RadioControl  ^pop - 32-bit Windows software to control multiple radios simultaneously. Beside direct control, it also features frequency and memory management and various scan options. Supported radios range from AOR to Icom and WiNRADiO.

Batteries - some thoughts - What sort of batteries when operating mobile, choosing proper battery technology

40MHz Frequency Counter Module - Design for a very low cost 6-digit frequency counter module using of the shelf components