[pskmail] Re: Server TXdelay

  • From: John Douyere <vk2eta@xxxxxxxxx>
  • To: pskmail@xxxxxxxxxxxxx
  • Date: Wed, 11 Jan 2012 15:36:52 +1100

Hi Robert,

What you describe is more like a lack of delay in the client's TX
which in my experience should be a minimum of 1 second (it is zero by
default and on fast PCs it transmits way to fast for the server to
return fully to RX).

On the server side a 1 second delay is OK since the TX time for a
response is minimum 6 seconds at PSK250 speed, so it is a good
safeguard. The penalty to pay for a missed exchange is a timeout which
is much longer than that.

As mentioned by Bernard in another email, the delay on the Signalink
(or VOX delay in the transceiver if its used) should be small
(typically less than 150-200ms).

It is also my experience that Winmor requires it to be virtually zero
to work properly and that setting should work for both systems.

Hope this helps,

73, John

On Wed, Jan 11, 2012 at 2:52 PM, Robert J. Krasowski
<rkrasowski@xxxxxxxxx> wrote:
> Few months ago when we were dealing with some mode switching issue which 
> happened to be bug in server while used in US. This bug had been corrected. 
> At that time we were advised to set up TXdelay in server to 1 which I 
> understand is 1sec. Can this value be 0.5 ? It would speed up communication, 
> on top of that I have noticed many time that my server bearly catch first 
> sounds of client after switching to receive.
> Thanks
> Robert
> Sent from my iPad

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