[Dx4win] BandMap wildly wrong freq?

[Mel, VE2DC]

>some worked properly with my contest software

Without knowing more about the code it might not be quite that simple.

The problem is CI-V collision detection as implemented assumes no data loss 
other than via collision. This assumption can break down in there are 
hardware issues... If Paul "followed the book" on CI-V protocol this it 
might explain the problem. I suspect some programs have added some 
additional error checking to get around this issue.

When things settle down we might get Paul's thoughts on this... but right 
now I suspect he has his hands full.

One thing you might try, Rick, is CI-V commander. You can download it from
http://www.dxlabsuite.com/commander/
It has a very handy trace feature as well as being absolutely solid 
communicating with Icom radios. It's a great troubleshooting tool.

Mel, VE2DC


----- Original Message ----- 
From: "Rick Murphy" <k1mu at arrl.net>
To: "DX4WIN" <dx4win at mailman.qth.net>
Sent: Thursday, August 13, 2009 10:31 PM
Subject: Re: [Dx4win] BandMap wildly wrong freq?


> On Thu, Aug 13, 2009 at 7:40 AM, Larry Gauthier (K8UT)<K8UT at arrl.net> 
> wrote:
>> Rick,
>>
>> I also encountered problems tracking frequency with certain USB CI-v
>> interfaces and DX4Win. Troubleshooting was made more difficult by the 
>> fact
>> that some worked properly with my contest software (N1MM) but not with
>> DX4Win. This bug was evident in v7, and probably still lingers in v8. You
>> will see erroneous readings in the new v8 bandmap and the "Freq (KHz)"
>> field.
>
> Progress so far: Larry's right. DX4WIN doesn't work with my USB CI-V
> interface.  I see the same incorrect readings when viewing the using
> the "Set Frequency" dialog and spinning the dial as I see in the
> bandmap.  Slower baud rate and higher poll frequency doesn't help.
> (1200 baud and 60000 ms poll didn't get any better!)  If you're going
> to suggest stuff like this, say what works....110 baud with 600 second
> poll? :-)
>
> Rebooting didn't help, either.
>
> I'm still trying to get a serial port replicator working to work around 
> this.
>    -Rick
> -- 
> Rick Murphy, CISSP-ISSAP, K1MU/4, Annandale VA USA
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