Wsjtx this is the client that most people use for decoding ft8. Hi,i have been mostly working jt modes since getting my flex a couple of months ago. Wsjt is the original program, first released in 2001. Jtdx software may decode jt65 signals with synchronization pattern bottom frequency of the signal located in 0 to 2700 hz af frequency range. Jt65 can also be decoded by other packages, such as jt65hf. Digital master, formerly dm780, is the allpurpose ham radio digital modes communications package integrated with the ham radio deluxe suite. Ft4 dx contest 2020 is scheduled for the weekend of february 29 march 1, 2020. Joe taylor, k1jt, steve franke, k9an, and bill somerville, g4wjs april 22, 2019 introduction. Jt65a software free download analysis of deep search. Jt65 digital mode software category is a curation of 9 web resources on, wsjtx, jt65hfcomfort, jt65hf by w6cqz. Jtdx adds a number of ft8 decoding options that are useful on crowded bands and in situations when signals are very weak. When using the jt65 hf software, youll need to adjust your thinking about the waterfall display.
Apr 09, 2016 amateur radio software for transmissionreception of jt65 protocol. In order to compete in the fastpaced app world, you must reduce development time and get to market faster than your competitors. Support jt9, jt65, t10 and ft8 is released unde gnu licence, by ua3djy and es1ja. Jt65 deep search copies two calls, locator and report in 48 seconds this is only possible by doping the decoding process with the missing bits, which is exactly what k1jt is doing. It can be used together with linrad by sm5bsz or with direct input from a soundcard or. Jt65hf lies within system utilities, more precisely device assistants.
So if you use a dial freq of 5357 then you must ensure your audio is no higher than. Jt65 can also be decoded by other packages, such as multipsk. Description wsjtx implements communication protocols or modes called ft4, ft8, jt4, jt9, jt65, qra64, iscat, msk144, and wspr, as well as one called echo for detecting and measuring your own radio signals reflected from the moon. Here is a decent you tube video of wsjtx you will want to visit dxlab site getting started with k1jt modes using wsjtx, jtalert, and dxlab i will focus on ft8 since it is the hottest mode at this time. Jt65hf would not be possible without the efforts of joe taylor k1jt and his wsjt software upon which jt65hf is, in part, based. It is useful for testing the jt65 decoder and the relative capabilities of these two modes. For msk 144, the decoding threshold is the fraction of db lower than before, having the larger message payload and high code rate. The method suggested is to start all calls with lower power, and only increase the power if you must. It can decode signals many decibels below the noise floor in a 2500 hz band note that snr. Jt65hf is the only that receive and decode all trasmissions made in the same minute so you can also receive the. Decoding bandwidth can be controlled by user and defined by horizontal size of the wide graph window, binspixel and start frequency settings. Actually, doping is done to the extent that the message received via the airwaves is a fraction of the printed message on the computer screen.
The generated audio waveform consists of 105 symbols tones sent in sequence at one of four frequencies. Other unofficial or limited pskreporter client software. Download dimension 4 internet time calibration software. Because of this, we suggest that you adjust the software volume controls only through windows instead of your programs adjust waterfall drive or adjust transmitter drive or similarly worded menus. That problem seems to have mysteriously fixed itself, and now my ntp service shows that my clock is rarely off by more than 15ms every 15 minutes. Did i forget a program or the software data is not up to date, please write to me via the contact form. Jt65a is a weak signal digital mode for ham radio qso. Unlike wsjt which if set to wide decode only decodes the strongest message, w4cqzs jt65 hf software will decode all messages in the 2000 hz receive bandwidth window which is shown on the waterfall. Please read and make yourself familiar with the change logs and instructions before testing any new features. Click here to go to k1jts site for the latest wsjtx software. Wsjt x software to decode ft8 jt65 wspr and more digital. Trusted for over 23 years, our modern delphi is the preferred choice of object pascal developers for creating cool apps across devices. Wsjt is a computer program used for weaksignal radio communication between amateur.
This site describes the use of hf frequencies for jt65a. If your computer soundcard has problems with sampling rate, you will have significant problems decoding stations, and other stations may have significant problems decoding you. Jt65hf by w6cqz download jt65hf amateur radio software for. Unlike wsjt which if set to wide decode only decodes the strongest message, w4cqzs jt65hf software will decode all messages in the 2000 hz receive bandwidth window which is shown on the waterfall. Occupied bandwidth is the same of this software as in the previous version and the false decoding rate is lower in this version. The jt65hf hb9hqx edition software, along with the source code, may be obtained from sourceforge. Hi doug, for jt65jt9 i use wsjtx from k1jt togehther with jtalertx.
I think is the best way for terrestrial jt65a and you can download free for ham use on. These modes were all designed for making reliable, confirmed qsos under extreme weaksignal conditions. Jt65 was developed originally as part of the wsjt weak signal modes software package by joe k1jt. Well here is the fix, and its not written down in some book. We recommend that you download and evaluate several programs to determine which ones work best for you. Discussion in computers, hardware, and operating systems started by iz4czl, jun 8, 2010. Welcome to my personal page,website about radio amateur digital modes since 1999. The jt65 encoding and decoding routines, also used in wsjt, are developed by k1jt. Software for amateur radio weaksignal communication. Amtorfec sitorb, navtex, selfec sitor, amtorarq sitora, dtmf decoding, and multifsk16. Discussion in working different modes started by k0han, nov. All users of jt65 whether with wsjt, multipsk or jt65hf owe a debt of gratitude to k1jt and the wsjt development group for their efforts and generosity in having made the wsjt source code available and open. And mshv 22 from lz2hv recompiled from source code of wsjtx with different gui implementation both for linux. It offers psk, mfsk and rtty digital modes with logging and macro capabilities.
The jt65 encoding and decoding routines, also used in wsjt, are developed by k1jt, joe taylor. Jt65 uses 126 contiguous time intervals, each of length 0. Was using jt65hf and decoding was going great, then no decodes. This free program was originally developed by joe large w6cqz. Jt65 hf jt65a hf frequencies frequency information digital mode software download. Jt65 software to decode weak signals is practice, practice, practice. Jt65hf comfort an extension of the excellent decoding software jt65 hf by joe. Jt65 has found a use on hf and can be found around 14. Wsjt is a computer program used for weaksignal radio communication between amateur radio operators. Hi all, i have tested all software for terrestrial jt65a and in my opinion the best is jt65hf.
Weak signal communication software wsjtx, wsjt, map65, and wspr are opensource programs designed for weaksignal digital communication by amateur radio. Problem decoding jt65 messages in jt65 hf software this morning i ran across a weird issue with the jt65 hf software not decoding jt65 digital messages. That software logs correctly jt65 and jt9 without extensions. Amateur radio software for transmissionreception of jt65 protocol. The data being gathered also includes more than just psk spots, it include jt65 and ft8 with ft8 the overwhelming majority at the moment. The jt65 hf hb9hqx edition software, along with the source code, may be obtained from sourceforge. Jtdx feature rich software for ft8 and other jt modes. Wsjt x software to decode ft8 jt65 wspr and more digital modes. Welcome to the jt65a digital mode for high frequency weak signal.
Jtdx jtdx is a multimode software for amateur radio. I previously commented that my tablet clock wouldnt sync, making it useless for synced digital modes. Problem decoding jt65 messages in jt65hf software this morning i ran across a weird issue with the jt65hf software not decoding jt65 digital messages. The program was borrowed from the open source software k1jt. Jt65 hf lies within system utilities, more precisely device assistants. The jt65 communications protocol joe taylor, k1jt abstract.
The jt65hf hb9hqx edition software, along with the source code, may be obtained. The software is compatible with microsoft windows xp, microsoft windows vista, and microsoft windows 7. Version 10 implements modes jtms, fsk441, fsk315, iscat, jt6m, jt65, and jt4. The program was initially written by joe taylor, k1jt, but is now open source and is developed by a small team. Ft4 uses a modulation technique known as gaussian frequency. Almost the same location of controls was used for easy operation. Hfpacket and uhfpacket ax25 are also supported in kisstnc emulation mode. Within each interval, the waveform is a constantamplitude sinusoid at one of 65 predefined frequencies, and frequency changes between intervals are accomplished in a phasecontinuous manner. Once you have it on your hard drive, double click on the compressed file to unzip. The most frequent installer filename for the program is.
Jun 29, 20 if your computer soundcard has problems with sampling rate, you will have significant problems decoding stations, and other stations may have significant problems decoding you. To enable reporting, you need to enter the following information into the settings or preferences. Feb 22, 2018 wsjt x software to decode ft8 jt65 wspr and more digital modes. Jt65a and jt65hf software weak signal digital mode on hf. Ham radio deluxe amateur radio digital mode software. Here is the download page look toward the bottom of the page for the installer. I have operated this software and hardware for the past 4months in this configuration without a problem until now. Jt65 hf jt65a hf frequencies frequency information. The actual developer of the free program is beat oehrli hb9hqx. Like ft8, it uses fixedlength transmissions, structured messages with formats optimized for. The digital signal processing techniques in wsjt make it substantially easier for amateur radio operators to employ esoteric propagation modes, such. The rsgb have placed a some advice on their website. Digital master, formerly dm780, is the allpurpose ham radio digital modes communications package integrated with.
And mshv from lz2hv recompiled from source code of wsjtx with different gui implementation both for linux and windows os. Jt65 hf also has bandwidth filters that you can set for the best rxing and you also can segle among single and multi decoder. Ham radio deluxe software digital modes for amateur radio operators log ft8 and jt65 qsos automatically from wsjtx, jtalert, or qso relay. Nov 27, 2012 was using jt65 hf and decoding was going great, then no decodes. It is useful for testing the jt65 decoder and the relative capabilities of. Ham radio digital modes software list and descriptions. Aug 20, 2019 download jt65 hfhb9hqxedition for free. Amateur radio software for transmissionreception of jt65 protocol on hf bands 2m 160m important.
Jt65 digital mode software category is a curation of 9 web resources on, wsjtx, jt65 hfcomfort, jt65 hf by w6cqz. The alternative is to place your dial on 5355 and then you have access to 3khz. Ft4 is an experimental digital mode designed specifically for radio contesting. Jt65 hf jt65a hf frequencies frequency information digital. With all features enabled, jtdx seems to decode more signals on a crowded band than wsjtx. After you install mmtty, download extfsk and unzipthe files into the mmtty directory on your hard drive. Home wsjtx wsjt map65 wspr simjt program development references support. These features can be selectively enabled to match band and signal conditions as well as the users available cpu horsepower. Jt65 is a popular amateur radio mode suitable for long. The latest jt65 software uses a dial freq of 5357, in the uk we must not transmit beyond 5358.
Ft8 uses 15second tr sequences, provides 50% or better decoding probability down to 20 db on an awgn channel, and maintains good performance on dopplerspread fading channels. Airlink express box airlink express is a user friendly digital mode software package for the amateur radio operator. A few days ago i saw a stonkingly strong to use an english colloquialism jt9 signal and still did not decode it. Hflink is the international resource for high frequency communications, hf digital messaging, emergency disaster relief, interoperative hf communications, hf networking, ham radio. My name is sergey, i was born in the 1963 year and live in moscow, russia. Jt65hf an odd but fun digital mode ok i know this mode is not for everyone but really what other mode has the capabilities to work the eu, south africa, south america, japan, new zealand and australia all on 40 meters, low power about 20 watts with a dipole up 25 feet on a saturday morning between 7 am and 8. Mar 01, 2019 jtdx adds a number of ft8 decoding options that are useful on crowded bands and in situations when signals are very weak. The sampling rate values in the lower left of the software should be in the range of 0. Map65 implements a wideband receiver for jt65 signals, optimized for eme on the vhfuhf bands. Jt65 is a digital protocol intended for amateur radio communication with extremely weak signals. Telescopeman discusses 4 free software programs that decode jt65 digital signals.
Normal usage requires a standard ssb transceiver and a personal computer with soundcard, or the equivalent. However, some programs cannot access the windows software volume controls properly in these later versions of windows. Ive been doing more hf listening with my sdr but i am having problems decoding jt9jt65. The mode name ft8 stands for franke and taylor, 8fsk modulation. Many new features and capabilities added in this software.