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1225 RSS being stupid

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There was a fake set of Prolific serial to usb chips sets floating around a few years ago.

I think Prolific did a change to the drivers to make sure the fake chips would not work and that caused some issues. Maybe a driver roll back would help.
 

knockoffham

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There was a fake set of Prolific serial to usb chips sets floating around a few years ago.

I think Prolific did a change to the drivers to make sure the fake chips would not work and that caused some issues. Maybe a driver roll back would help.
Yes, I have encountered that many times. This PC hasn’t had an active internet connection since I’ve owned it though, so the only drivers it has are the ones it shipped with or anything I add via flash drive/CD/floppy etc. The prolific ribless cable I had was plug and play, worked great until when 1225 RSS started acting up and I went to give it another try… “No driver found”. And I went to manually select one and “the device failed to start.” I will have to make a driver CD and fight with it again today. The counterfeit-chip-intentionally-broken-driver issue with Prolific stuff only affects Windows 10/11 in my experience. The annoying thing is it also affects legitimate PL-2303 chips as well.
 

knockoffham

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Still not working with the PL2303 fixed. Switched to PS/2 mouse and keyboard. Still fails after part of a read then nothing until the program has restarted. Have just written/read a Maxtrac and Astro Spectra with the same computer and RIB.
 
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Sounds like you need to use a program to monitor the serial data from the pc to radio to capture it and look for any errors if that's possible.
I don't know if there is some active checksum monitoring going on but the symptoms seem to indicate that.
 

knockoffham

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I would think it is a data integrity issue. Except the comm test (involving no real data transmission) fails after an initial read attempt. But passes before that. I will see if I can monitor the serial data. Thanks for the suggestion.
 

knockoffham

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I think so, but I'm not 100% sure. I'm not planning on being in old-radio-programming-computer area for another 6 days or so, but when I am, I will give that a try.
 

knockoffham

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Picking up several 1225 mobiles to program for a client today. Are any versions of 1225 RSS DOS-based? I have programmed the same radios for him before, and had no issues. I don’t remember if it was through DOS or Windows but I’m 95% sure it was the same computer.
 

knockoffham

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Have tried reading/writing a few other 1225s. No success. In the mean time today have written some Maxtracs, SM50s/120s.
 

petnrdx

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The earliest 1225 I have is WIN 98 which without the GUI is DOS 7.10. I *think* there might have been a WIN 95 version. I have experienced the trouble you are having with a few radio/rib/computer combinations. And I found 1225 to be one of the most unstable. I run the WIN 98 on a TOUGHBOOK running ver 3.2 build 7 CPS and on WIN XP version 4. I also have that "reads once then won't work until a reboot" problem with SM120. Good luck.
 

knockoffham

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The earliest 1225 I have is WIN 98 which without the GUI is DOS 7.10. I *think* there might have been a WIN 95 version. I have experienced the trouble you are having with a few radio/rib/computer combinations. And I found 1225 to be one of the most unstable. I run the WIN 98 on a TOUGHBOOK running ver 3.2 build 7 CPS and on WIN XP version 4. I also have that "reads once then won't work until a reboot" problem with SM120. Good luck.
Thank you. That is some useful info. So sounds like they never had a DOS-only 1225 RSS. That slightly sucks for me, since the only capabilities I have are plain DOS, Windows 2000/XP, and 10/11. Might have to install Windows 95/98 and try from there. Fortunately, the customer is not on a tight timeline at all- he says as long as they're back by spring he's happy. The DOS/Windows 2000 computer is a 1997 or so mid-tier Dell workstation, the Windows 10/11 are a 2021 Lenovo ThinkPad and a tower I built a few months ago. I forget the exact specs of the Dell. But it probably would not run XP so well. I had a Windows 95 and an XP laptop but they fell victim to cold solder joints that I could not find.
 
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------------------------------------------------------------------------
MOTOROLA Radius 1225 Series Radio Service Software
Version 3.2 Release Build 7
Copyright (c) Motorola, 1996-2000
------------------------------------------------------------------------
DESCRIPTION:
This software is Version 3.2 of the 1225 Series RSS. It supports
the R1225 Repeater, the M1225 Mobiles, and the P1225 portable radios.
This release includes several improvements and fixes relative to the
oriinal 1225 Series RSS. Details may be found below.
------------------------------------------------------------------------
SYSTEM REQUIREMENTS:
COMPUTER:
IBM PC-compatible system, with at least 4 MB of RAM.
OPERATING SYSTEM:
This software was designed to run on the Microsoft Windows 3.1, Windows
3.11, Windows for Workgroups, and Windows 95/98 operating systems.
 

knockoffham

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I got another old computer running XP and tried it with the same software and same RIB, works fine. Please do not close this thread just yet as I’m hoping I or someone else can find a solution or at least the cause of the issue.
 

knockoffham

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Com port settings exactly the same. Both are motherboard ports (although computer one also had a PCI one I tried)
 

knockoffham

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I did. I think baud rate is set by CPS/RSS though as no matter what I change it to, 1225 RSS didn’t work but other CPS packages still did.
 
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