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The LINKUp wikis on Sourceforge and github have been updated to list the watering hole frequencies and their center frequency equivalents.

New feature for LINKUp is a configurable beacon, so unattended operation can produce a heard list of other stations who are also beaconing. This allows you to pick a call sign and use the LINKUp button to get a print quality report.

Sourceforge and github both updated with the new release.

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Mitch....just FYI About 5 or 6 of us in Metro Atlanta are starting a test platform on VHF Simplex...VHF/UHF Repeaters and HF using Linkup...We want to move toward a chat RF tool.

I will let you know the outcome.

Thanks again for all your work.

AEC Digital/PIO Paulding ARES

I have done some house cleaning on Sourceforge and github.

UIChat repository gone. All Sourceforge files still intact.

LINKUp repository gone. All existing Sourceforge files still intact.

New git repository on Sourceforge containing ONLY the latest Qt5 C++ source. That is under the "Source" link at the top of the page.

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Life has taken odd turns!! I am knee deep in commercial radio related software jobs now. That accounts for the silence for so long.

I was just thinking this morning that it would be great if someone could test out a new version of LINKUp which includes a rather rudimentary ARQ twist that I call SMARQ.

It is already out there on Sourceforge.


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New version of LINKUp for Windows using Qt libraries and a new ARQ method that I am trying out. It's also prettier in some ways and a little more mature than the original because I have learned much in the past few months.

The "src" zip is a Qt project that I use with MingW32, but it should compile on Linux as well with the possibility of a few minor adjustments. Hit me up if you try it and get stuck.

Creation of the exe is done with "qmake" from the source dir to create the Makefile. Then "make" to build it which if successful should leave behind a "LINKUp" executable. This all assumes a valid installation of Qt development libraries. The "qt-default" package from Debian gets you up to Qt v 5.3.2 which is OK, but requires adjusting a few function calls in the source to compile.

I have compiled and run it under Qt 5.3.2 and used it against my MingW 32-bit version with two radios.

The other zip is a Win32 installation package. Simply unzip to a convenient place and run the EXE. I suggest you start FLDIGI first and make use of PSM for your own sanity.

The SMARQ (I am leaving it a mystery as to what "SM" stands for, just for fun) code sets up a "file transfer" as a station to station operation only. Essentially, this is inspired by the FLAMP tool in FLDIGI, in that the entire file is broken into "blocks" or "frames" to send, but then ALL frames are sent in one big blob. At that point the sender requests a fill list from the receiver and they keep doing that until all frames (checksummed) are received successfully and the incoming file is written to disk with it's original filename.

So as you might imagine, the best modems to choose are those with FEC and interleave, such as THOR, MT-63 and Robust PSK.

This is really really new and not bulletproof and by no means polished. I thought some of you might want to play with it.

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Comprehensive FT-450D Remote Control with CAT command pass-through, either TCP socket or Virtual Serial.

So this program can efficiently control the radio (no more pawing through multiple button pushes, etc.) and interoperate with outside remote control programs like RigCAT inside of FLDIGI.

This should be going to market soon. I will release the web site name as soon as all is in place.

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Greetings all. I have been very quiet, but that's not because I have stopped programming!

I have been hard at work on some MARS projects that have been very well received, both by Army MARS as well as Air Force MARS and the Canadian Forces Affiliate Radio System.

The work has consisted of a "smart" terminal program which includes in-line encryption, a message origination and pre-processing program that is integrated to the terminal program, and various remote control programs for radios as well as hardware modems.

I will be bringing a lot of the lessons learned to both the Open Source projects already in place, plus some new commercial work that is in the pipeline, as well as a few radio software projects for actual money! More on that in the near future when the web presence is fully in place.

Hello Mitch,

I am interested in UIChat for possible EmmComm use. I have tried to run UIChat on Windows, Linux, and Mac with no luck. The program won't open on any of the OS using Java 1.8.0_74-b02.

On the same systems I can run LinkUp just fine.

Are you still developing UIChat?

Thank you for your contributions to HR.

73 - Pascal - AC7N
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