ZS WSJT HOMEPAGE
COMPILED BY BARRY ZR2DX


WSJT is the name of a computer program. It stands for “Weak Signal communications, by K1JT.” The program currently supports four principal modes:  FSK441 is the mode designed to support communication using very brief “pings” from meteor trails in the ionosphere at about 100km height. Such pings are typically a few dB above the receiver noise and may last from ten to a few hundred milliseconds. By using these brief pings FSK441 makes 800 to 2200 km QSOs possible in the Amateur 6m and 2m bands.JT6M is also for meteor scatter, but especially optimized for the 6-meter band; JT44 is for extremely weak but slowly varying signals such as those found on troposcatter, ionoscatter, and Earth-Moon-Earth (EME) paths.The EME Echo mode is for detecting and measuring your own echoes from the moon. The program also offers a Measure mode for testing Sun noise and the like, and an EME Calculator to help you estimate the strength of your own and other stations’ echoes from the moon.

LIST OF ACTIVE WSJT OPERATORS IN SOUTH AFRICA
This list includes email links to all operators, as well as a brief summary of station (where known).

WSJT SETUP PAGE
Information for the setup and usage of the WSJT program.

WSJT RESOURCES
A collection of links to resources on the internet for both FSK441 and JT44.

MAKING YOUR FIRST JT44 QSO
An introduction to JT44 operation, by Hal Lund ZS6WB

MANUAL TIME CALIBRATION IN JT44
A brief explanation of manual time synchronisation in JT44, by Hal Lund ZS6WB

JT44 DX OPERATING PROCEDURES
A detailed DX Operating procedure guide for the JT44 mode of the WSJT program, written by Hal Lund ZS6WB

JT44 PREFERRED DX FREQUENCIES FOR ZS OPS
In order to facilitate DX operations using JT44 mode local operators have indicated their preferred frequencies of operation. They are listed here to prevent confusion.

WSJT DOCUMENTATION
A collection of tutorial and documentation files for WSJT software. Files are in PDF format.

K1SIX WEAK SIGNAL WSJT MODES ON 6M
An excellent primer and source of reference regarding WSJT internationally, compiled by Bob K1SIX

IARU REGION 1 METEORSCATTER OPERATING PROCEDURES
The Standard Operating procedures for Meteorscatter as promulgated by the IARU Region 1. These procedures were adopted at the IARU Region 1 Conference in Miskloc-Tapolca (1978), and later slightly amended at the IARU Region 1 Conference in Noordwijkerhout (1987), Toremolinos (1990) and de Haan (1993). They have not as yet been amended to cope with WSJT.

VHFDX DL-WEST IARU WSJT STATEMENT
A demand for IARU regulation in respect of the WSJT modes, issued by the VHF-DX-Group DL-West. This document is dated 3 November 2001.


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