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How to change K3 COM port to a high number (to avoid N1MM/u2R problem)

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K7TV

How to change K3 COM port to a high number (to avoid N1MM/u2R problem)

I run two K3 radios with MicroHAM u2R for SO2R in N1MMplus.
It has been working, but occasionally I get a message about COM port
conflicts, about the two COM ports that are used to control the radios, and
this causes problems during a contest such as tomorrow....

I have spent some time looking for the source of conflict, but don't see
those two COM port numbers used by anything else in Device Manager, even
when using "show hidden devices". When I set up everything related to N1MM,
and the u2R I totally avoided using those two COM ports that are used for
the radios. I never get the errors when just running the radios without
N1MM/u2R. I don't remember any such error from long ago when I was using
N1MM without SO2R. I sought advice on a computer forum and a Microsoft
employee advised me to try using high port numbers such as 25 or higher for
my applications, as any "hidden" usage in Windows would be unlikely to use a
high number. No conflicts are reported for the numbers I use for N1MM and
u2R, so it seems meaningless to change those to high numbers. It seems I
need to try high COM port numbers for communicating with the radios. How can
I do that? Using the Elecraft FTDI adapters.

Thanks,
73, Erik K7TV

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Nr4c

Re: How to change K3 COM port to a high number (to avoid N1MM/u2R problem)

Use Device Manager/Ports/Advanced and change the port number(s) for the KUSB(s) in question.

Sent from my iPhone
...nr4c. bill

> On Jun 22, 2018, at 2:04 PM, Erik Basilier <[hidden email]> wrote:
>
> I run two K3 radios with MicroHAM u2R for SO2R in N1MMplus.
> It has been working, but occasionally I get a message about COM port
> conflicts, about the two COM ports that are used to control the radios, and
> this causes problems during a contest such as tomorrow....
>
> I have spent some time looking for the source of conflict, but don't see
> those two COM port numbers used by anything else in Device Manager, even
> when using "show hidden devices". When I set up everything related to N1MM,
> and the u2R I totally avoided using those two COM ports that are used for
> the radios. I never get the errors when just running the radios without
> N1MM/u2R. I don't remember any such error from long ago when I was using
> N1MM without SO2R. I sought advice on a computer forum and a Microsoft
> employee advised me to try using high port numbers such as 25 or higher for
> my applications, as any "hidden" usage in Windows would be unlikely to use a
> high number. No conflicts are reported for the numbers I use for N1MM and
> u2R, so it seems meaningless to change those to high numbers. It seems I
> need to try high COM port numbers for communicating with the radios. How can
> I do that? Using the Elecraft FTDI adapters.
>
> Thanks,
> 73, Erik K7TV
>
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]

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Bob Wilson, N6TV

Re: How to change K3 COM port to a high number (to avoid N1MM/u2R problem)

In reply to this post by K7TV

Erik,

1. Please set the Windows System Environment variable
devmgr_show_nonpresent_devices to 1
2. Open Windows Device Manager and select View -> Show Hidden Devices
3. You will probably see far more COM port devices than seen previously
4. Expand Ports
5. (Expand Eltima devices if visible)
6. Under Ports, note all the conflicts (multiple devices with same COM
port number, some not present and disabled)
7. For any ports that use Prolific device drivers, select Uninstall
Device. When you get to the last Prolific device, check the box that says
"Delete the driver software for this device"
8. Do not uninstall any FTDI or Eltima devices
9. Renumber remaining ports as required so they are all unique COM port
numbers (Right Click, Properties, Port Settings, Advanced). Do not touch
Eltima (microHAM) devices.
10. Please report success or failure here

If the problem continues, please send me a screen shot of the pop-up error
message that you see. The title bar may reveal which program is issuing
the message.

A screen shot of your Window Device Manager with Ports expanded may also be
helpful.

(Use the Windows Snipping Tool to take screen shots)

73,
Bob, N6TV

On Fri, Jun 22, 2018 at 11:04 AM, Erik Basilier <[hidden email]> wrote:

> I run two K3 radios with MicroHAM u2R for SO2R in N1MMplus.
> It has been working, but occasionally I get a message about COM port
> conflicts, about the two COM ports that are used to control the radios, and
> this causes problems during a contest such as tomorrow....
>
> I have spent some time looking for the source of conflict, but don't see
> those two COM port numbers used by anything else in Device Manager, even
> when using "show hidden devices". When I set up everything related to N1MM,
> and the u2R I totally avoided using those two COM ports that are used for
> the radios. I never get the errors when just running the radios without
> N1MM/u2R. I don't remember any such error from long ago when I was using
> N1MM without SO2R. I sought advice on a computer forum and a Microsoft
> employee advised me to try using high port numbers such as 25 or higher for
> my applications, as any "hidden" usage in Windows would be unlikely to use
> a
> high number. No conflicts are reported for the numbers I use for N1MM and
> u2R, so it seems meaningless to change those to high numbers. It seems I
> need to try high COM port numbers for communicating with the radios. How
> can
> I do that? Using the Elecraft FTDI adapters.
>
> Thanks,
> 73, Erik K7TV
>
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>