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Re: [WriteLog] WL/MK2 TX hang-up using MTTY

To: writelog@contesting.com
Subject: Re: [WriteLog] WL/MK2 TX hang-up using MTTY
From: "Joe Subich, W4TV" <lists@subich.com>
Date: Mon, 08 Dec 2014 10:49:45 -0500
List-post: <writelog@contesting.com">mailto:writelog@contesting.com>

> That's how I've always set it (CW PTT = NO)

It's not CW PTT= NO ... it's COMM PTT in the WinKey Ports Set-up.
This has been documented in the configuration examples for all
microHAM interfaces *for years*.  Sometimes I wonder if it is
worth the effort to generate and document those configurations.

73,

   ... Joe, W4TV


On 2014-12-08 12:27 AM, Eric Rosenberg wrote:
That's how I've always set it (CW PTT = NO)

Changing that parameter makes no difference. It just keeps transmitting....

Could I have set something incorrectly in the MK2 router?

73,
Eric W3DQ

---------------------------------------

Date: Sun, 07 Dec 2014 22:23:12 -0500
From: "Joe Subich, W4TV" <lists@subich.com>
To: writelog@contesting.com
Subject: Re: [WriteLog] WL/MK2 TX hang-up using MTTY

Make sure Writelog is *not* using "COM PTT"  (PTT commands on the serial
port) as several rigs appear to have a subtle race condition between PTT
via CAT commands and hardware PTT.

My suspicion is that the rigs in question mask changes on the PTT input
while processing CAT PTT commands but ignore a CAT PTT off if the PTT
input is asserted ... then when unmasking the PTT input the transition
has been missed.  I've never seen the issue (or heard reports of it)
in systems where COM PTT (or equivalent software PTT) has been disabled.

73,

    ... Joe, W4TV
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