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Difficulty Programming a Maxtrac 300, 32 Channel
New to the group and hope you guys can help out in this.
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I had a real old laptop an Inpiron 3200 that took a crap and it had the RSS software on it.
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Fortunately, I had made a copy of the RSS on my other computer and I am able to run it in DOSBox but cannot communicate with the rig.
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The computer I am using only has a USB connector to which I plugged in a USB to serial cable, this went to my RIB box and from there onto the rig.
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However, communicating with the rig fails.
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I was wondering if the 300 has a specific Com port and baud rate settings that I could change on this computer to get communication moving along.
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Thanks,
?Bill K2WH |
You could try MoSlo, I¡¯ve used it long ago to slow down PCs programming old radios.
you can get the basic ver for free, or delux for donation to a charity for $25.
Also using a good quality USB to serial adapter such as one from Sealevel
79.00, but you can usualy find used ones on eBay. If not sealevel, be sure to use one with a FTDI chip set. Can be found on Amazon, no name for $12 or Star Tech for $33
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Greg
AI?B |
Well, tried Com1, Com2 up to Com 36 and all different baud rates for each Com selected with no luck so I asked AI Gemini what was the typical baud rate for programming a maxtrac radio, below is the answer.
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The initial communication baud rate for programming a Motorola Maxtrac radio is approximately 950 baud. The Radio Service Software (RSS) and the radio initially communicate at this slower speed. After establishing communication, the software typically sends a message to the radio to switch to a faster baud rate, around 7600 baud, for more efficient data transfer during the programming process. ? Well, I don't know if that is correct but I have no way to effectuate those baud rates, I guess I'm dead in the water. ? Bill K2WH |
It's not just slower speed; all the old Motorola DOS RSS expect the serial port to be using a processor in REAL mode (actual DOS, hardware control of the serial port) not PROTECTED mode (serial port controlled by/mapped through Windows).
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Short of a computer with a real serial port running real DOS, two things you can try:
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1)? On the HamVOIP website is a link to instructions for setting up a Raspberry Pi to do some sort of emulation that actually works with some of the Motorola DOS programs. I found the service screens (tuning) to be flaky but I was at least able to program a GM300 and a Maxtrac with it, using my Sabrent FTDI serial-USB thingy and a RIB box/cable.
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2) There's a new fork of DOSBox call DOSBox-X on Github? It claims to have much more granular control of processor speed and serial port control but I have no experience with it yet. It may or may not deal with the fundamental underlying problem.
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If you just need to get frequencies into a Maxtrac, the thing on HamVOIP is probably your best bet. |
I¡¯ve made numerous attempts to use DosBox over the years and have never had any luck. I¡¯ve got a 486 laptop that I use for DOS software and before that I used to program them with a 2007 dual core AMD processor running FreeDOS off a USB drive. The only issue I¡¯ve had with processor speed is the R100 software and the Radius M10 software.? |
¿ªÔÆÌåÓýI've used DOSBOX on XP up to Win11 with good luck. You must remember to have ALL files in the same file folder (directory) and follow DOS naming protocols, including length of the filenames and legal characters. And I'm not real good at computer stuff, but I did follow their online instructions.Chuck WB2EDV On 4/20/2025 1:45 PM, Jared Smudde via
groups.io wrote:
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Jared Do you have just one Maxtrac that you want programmed??? or do you have a shelf, box, or storage room full of them ?? what band Maxtrac do you have? L/B, VHF, UHF, 800, 900? and what would you like to put in them? if its just one then maybe someone out here can help you. There are still some of us running 386 computers (collecting dust most of the time) You can always look for an older Panasonic Toughbook, they have a real DB9 comm port (com 1) along with a single usb port, load DOS 6.22 and then load the Maxtrac or Maxlab software, hook up the RIB box & Cable & have fun, Bob KD6GNB On Sunday, April 20, 2025 at 10:45:40 AM PDT, Jared Smudde via groups.io <computerwhiz02@...> wrote: I¡¯ve made numerous attempts to use DosBox over the years and have never had any luck. I¡¯ve got a 486 laptop that I use for DOS software and before that I used to program them with a 2007 dual core AMD processor running FreeDOS off a USB drive. The only issue I¡¯ve had with processor speed is the R100 software and the Radius M10 software.? |
¿ªÔÆÌåÓýThe HamVOIP process will certainly program the radio without much drama. The DOSBox process does work on my Win 10 i7 laptop. Both options will work using an FTDI cable. Yes, the baud rate is a very seldom used 950 that most non FTDI chips don¡¯t support.?BTW, the DOSBox configuration file setting determines which virtual and physical com port is used.? Mike / K5JR? Alpharetta GA On Apr 20, 2025, at 12:15?PM, Bob KK6RQ via groups.io <nuhtrue@...> wrote:
? It's not just slower speed; all the old Motorola DOS RSS expect the serial port to be using a processor in REAL mode (actual DOS, hardware control of the serial port) not PROTECTED mode (serial port controlled by/mapped through Windows).
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Short of a computer with a real serial port running real DOS, two things you can try:
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1)? On the HamVOIP website is a link to instructions for setting up a Raspberry Pi to do some sort of emulation that actually works with some of the Motorola DOS programs. I found the service screens (tuning) to be flaky but I was at least able to program a GM300 and a Maxtrac with it, using my Sabrent FTDI serial-USB thingy and a RIB box/cable.
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2) There's a new fork of DOSBox call DOSBox-X on Github? It claims to have much more granular control of processor speed and serial port control but I have no experience with it yet. It may or may not deal with the fundamental underlying problem.
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If you just need to get frequencies into a Maxtrac, the thing on HamVOIP is probably your best bet.
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On Sun, Apr 20, 2025 at 02:43 PM, bob ehrhorn wrote:
JaredI have no issues with programming MaxTracs. I started out using a 2007 era laptop in FreeDos that has a serial port and programmed radios for years with that. I obtained the 486 laptop 2 years back and have switched to using that full time for any radio using DOS software. I've only tried DosBOX for grins and could never get it to work. Not a big deal since I have a 486 machine. |
I use an IBM thinkpad model X20. ?
it¡¯s a P3 with a real serial port. ?I don¡¯t use moslo or anything for maxtrac or gm300. ? These machines run XP and 2000 with no problems. ?I use separate partitions for windows and dos. ?My dos partition is loaded with MSDos 6. ?I select which partition to boot from the windows startup. ?
I can even run the most picky of x9000 rss. No problems.? Buy an x20 series thinkpad. ? It¡¯s TOTALLY worth it!
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I run VMBOX on Win10...load XP SP3 32BIT on the VM box..it can run anything you need Chris WB5ITT? On Sun, Apr 20, 2025, 2:43?PM bob ehrhorn via <behrhorn=[email protected]> wrote:
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For DOS on modern PC's, I had success when faced with many failures to run RSS for HT1000's, MT1000's and similar so far work Made a bootable USB stick (used a spare 8Gb that was around) and loaded FreeDOS on it following online references for how to do this. Changed the boot order for the windows 7 toughbook I use for programming and it works without any issues - like scary how well this replicated having a 286 laptop 20 years ago running RSS Notes - PC cannot be UEFI bios. You should only use with a PC that has a native serial port - not seeing a likely to have this port to a USB serial device. Jason On Sun, Apr 20, 2025, 10:31?PM Chris Boone WB5ITT via <setxtelecom=[email protected]> wrote:
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I got a bunch of HP thin clients with real serial ports on them that I use freeDOS on. It just works. All DOS based programming apps have worked with issue. They are 12V too! Contact me direct if you want one. $20 plus ship. Benjamin, KB9LFZ? On Fri, Apr 25, 2025, 10:10 Ranger Radio via <motorolaradio7000=[email protected]> wrote:
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