monitor frequency

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.

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

RC - QRG - Web site for DX'ers with DX News, Monitor, QSL managers...

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

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

Angle linear  ^pop - Linear Radio Frequency (RF) products and peripherals for communications

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.

Sirio Antenne - Antenna for GSM, CB, marine, VHF/UHF, HAM and high frequency 1,9/2,4GHz

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

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

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

Monitoring Times - Monitoring Times, SWL, BCL, montly reports, Broadcast band, satellite television, long-wave coverage, Reviews of new products and radio-related software.

NovaLynx Corporation - "Instruments & Systems for Weather & Water Monitoring; weather stations, wind alarms, sensors for wind speed, wind direction, precipitation, temperature, relative humidity, barometric pressure, solar radiation, evaporation, rain & snow gauges, lightning detection."

VOA monitoring home page - This page is devoted to all aspects of technical monitoring of radio broadcasts intended for international audiences.

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

Monitoring the Crisis in the Balkans - By the Monitoring Times Staff, NATO HF Frequencies, NATO Common VHF/UHF Frequencies and English Language Shortwave Broadcasts from the Balkans

RTTY Press Freq list - RTTY press services in english sorted by frequency

DX Monitor - DX Monitor is a standalone Win 95/98/NT program which monitors the DX announcements available on the internet at DX Summit and presents the information in a sortable grid format and on a map centered on your location.

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

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.

Scan*Star - Radio monitoring and analysis tools. Scanning, searching, spectrum analysis and traffic analysis. Amateur, Industry & Government,

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