I will not be able to provide any support for that version, however, if aįuture HRD release breaks the JTAlert/HRD integration.

This comes into effect with the next public release of JTAlert (2.9.0).Īffected HRD users can continue to use the current version of JTAlert I will no longer be providing support for HRD V6 logging within JTAlert. (the programmer of JT-Alert) made a decision not to support HRD V6 any There are some other issues as well that Laurie VK3AMA The populair WSJT-X and many other JT digimode software) without any

Now it seems HRD V6 deliberately shutdown JT-Alert (a program that supports No good advertisement for a commercial software package. Of all the issue most of you heard of a while ago.īasically the user of HRD V6.* was blocked after some troubles in which heĬalled for support. Lately some very unpleasant things happen regarding Ham Radio DeLuxe.

Operators have also begun using the JT65 mode for contacts on the HF bands, often using QRP (very low transmit power) while the mode was not originally intended for such use, its popularity has resulted in several new features being added to WSJT in order to facilitate HF operation./////////////////////////////////////////// After messages are encoded, they are transmitted using MFSK with 65 tones. (The particular code used for JT65 is Reed-Solomon.) Because of this FEC process, messages are either decoded correctly or not decoded at all, with very high probability. The FEC adds redundancy to the data, such that all of a message may be successfully recovered even if some bits are not received by the receiver. Like the other modes, multiple-frequency shift keying is employed unlike the other modes, messages are transmitted as atomic units after being compressed and then encoded with a process known as forward error correction (or “FEC”). It can decode signals many decibels below the noise floor in a 2500 Hz band (note that SNR in a 2500 Hz band is approximately 28 dB lower than SNR in a 4 Hz band, which is closer to the channel bandwidth of an individual JT65 tone), and can often allow amateurs to successfully exchange contact information without signals being audible to the human ear. JT65, developed and released in late 2003, is intended for extremely weak but slowly varying signals, such as those found on troposcatter or Earth-Moon-Earth (EME, or “moonbounce”) paths.

Jt65 using ham radio deluxe