Yes, computer port timing is not to be trusted for sending good CW.
On Mon, Dec 28, 2020, 10:45 <marsh@ka5m.net> wrote:
> Thanks to all who responded. A WinKeyer USB solved my erratic keying
> problem.
>
> Marsh, KA5M
>
>
> -----Original Message-----
> From: marsh@ka5m.net <marsh@ka5m.net>
> Sent: Sunday, December 27, 2020 2:26 PM
> To: WriteLog <writelog@contesting.com>
> Subject: Erratic Keying
>
> I have a problem with erratic keying.
>
> My setup:
> Dell Computer with an i5 Quad Core 3.1 MHz Windows 10 Pro 64-bit WriteLog v
> 12.55G
> Icom-7851
>
> The Icom-7851 has the latest firmware version 1.31.
> For radio to computer communication, I'm using a single USB cable, Icom USB
> Driver and USB Audio CODEC version 1.30.
> The USB Driver set up 2 virtual COM ports, COM5 and COM6. COM5 is used for
> rig control and CW keying on DTR. COM6 handles PTT for FT8, and PTT and
> keying for RTTY.
>
> For contesting I press the [F2} key to send my exchange - for the Mini-CWT
> Sessions it is MARSH 1433. From 1 to 4 out of 10 [F2] presses gibberish is
> sent.
>
> Any suggestions or comments would be appreciated.
>
> Marsh, KA5M
>
>
>
>
>
>
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