[TenTec] OT: USB to Serial interface

[Kim Elmore]

I've installed a new UTS and I still have the same issue. I also 
obtained a serial port slot plate adapter for the on-board COM port 
on the motherboard and tried that. I still have the same issue with it.

Now, this really is new and I haven't the faintest idea what's 
happening. It's as if the DTR line (which is what the RigBlaster uses 
for PTT) is being polled. But it's being polled even through the 
on-board COM port (which I assume really is a 16650 UART).

When I start any program that uses the assigned com port (COM2 if it 
matters) for PTT, such as MMTTY, HamScope or WinPSK, the polling 
behavior stops. When I use any of these, I go through EXTFSK (v1.06). 
If I go through the hardware manager and disable the port, the 
polling behavior stops. But, as soon as I enable the port, the 
polling behavior recommences.

Has anyone ever seen behavior like this? If you did, how did you 
solve it? I'm using XP SP3...

73,

Kim Elmore N5OP



At 03:02 PM 3/2/2011, you wrote:
>I'm not sure of its age -- I'll guess 3 or 4 years. I don't think 
>its a voltage
>change on the USB port. Regardless of the port it's in I experience this new
>"feature."  If I remove it from the USB port it's on when the system 
>boots and
>plug it into a different port (not the same port) the problem 
>vanishes until the
>next time the system boots. I've reloaded the drivers, but it 
>doesn't help. I've
>also reassigned its com port number to no avail.
>
>I should get the new ones any day and I'll give one of them a crack at it.
>
>73,
>
>Kim N5OP
>
>
>
>
>----- Original Message ----
>From: "k3miy at csonline.net" <k3miy at csonline.net>
>To: Discussion of Ten-Tec Equipment <tentec at contesting.com>
>Sent: Wed, March 2, 2011 11:54:00 AM
>Subject: Re: [TenTec] OT: USB to Serial interface
>
>Kim
>
>How old is the failing UTS converter? Also, you might have a voltage change on
>that particular USB port.
>
>Ron
>K3MIY
>
>Quoting Kim Elmore <cw_de_n5op at sbcglobal.net>:
>
> > I have recently noticed that one of my USB-to-serial converters is
> > misbehaving. It's a no-name unit that uses a Prolific chipset and has
> > served well for years. It is the one I use for PTT control of my
> > RigBlaster.  After the system boots, every 15 s I get two very quick
> > "dits." If I move it to another USB port, the problem vanishes. The
> > three other identical units I have seem to be fine. I've ordered new
> > USB-to-serial units but they have yet to arrive.
> >
> > Has anyone ever noticed anything like this on their units? Is this
> > just another failure mode for these things?
> >
> > Kim Elmore  N5OP
> >
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> > TenTec at contesting.com
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> >
> >
>
>
>
>
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