rtty frequenc

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.

Crossed-Wire HF Antenna - This Crossed-Wire Electrically-Steerable HF Antenna, capable of transmitting signals over the entire 1.8 to 30MHz HF range, and capable of receiving signals at much lower frequencies is basically a crossed centre-fed wire system, consisting of four thin wires brought to a central mast by G3YNH

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.

Timeware tech. - Amateur Radio Products, Noise Reduction Filters, Data Controllers, deviation meter, Software, DSP-RTTY

Radio & Communications  ^pop - Info about many aspects of Radio & Communications. Antennas, signals, frequencies, codes, swr, scanning etc.

PSK for Beginners - Article on PSK modes. PSK for Beginners Has RTTY's Replacement Arrived?

SSTV Nets - List of SSTV Net frequencies

Amateur Satellite FAQ - Beginner guide to amateur satellite, with tech info about accessories, antennas, and frequencies.

The FAX and SSTV Corner - SSTV Fundamentals, frequencies in use for SSTV and many SSTV related infos, includes Fax basics

Near-Realtime MUF indicator  ^pop - This is a highly informative map that can be used by amateur and professional radio communicators to determine maximum usable frequencies for any world-wide path at the indicated UTC (Zulu) time.

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

Scanning Reference - Informations about Scannings, with frequencies, information about scanning, hardware and software reviews

Dansk Scanner Information - Danish frequencies and scanner resource

Spy Centre - All about Spy Numbers Stations, which send coded messages to agents. Includes schedules and frequencies of stations.

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

MultiMode - Digital modes decoding software for the macintosh. Decodes CW, RTTY, WEFAX, SATFAX, ACARS, DTMF, SSTV

HamComm 3.1  ^pop - DOS Freeware popular program for ham radio communications, supports reception and transmission of radio teletype RTTY, AMTOR ARQ/FEC, SITOR A/B, NAVTEX and Morse code (CW) signals. A decoder for SHIP and SYNOP reports from weather stations is also included. This program is discontinued and unsupported. Originally developped by Schroeder DL5YEC

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.

KaGold and PkGold - Performance Software for AEA and Kantronics TNCs Recognized Leader in Packet Amtor RTTY Baudot Pactor Gtor ASCII CW Morse support

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

BTL Blaster TeLetype - High performance RTTY reception and transmission software, need a Sound Blaster compatible sound card.

FTV  ^pop - FTV is an MS-DOS program used to receive images from Weather Satellites and Terrestrial Facsimile Stations, text transmissions from radio telex services, Morse code, as well as Amateur Radio FAX, SSTV, RTTY and CW signals. It can also be used to transmit FAX and SSTV. No external hardware, other than a radio, is required, as all the necessary signal processing is implemented in software.

MScan Meteo - The revolutionary program, combining the ability to decode FAX, NAVTEX and RTTY signals, make VOICE recordings and view GRIB files in a single program!

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