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Re: Topband: DSP and Latency

To: Bill Cromwell <wrcromwell@gmail.com>, topband@contesting.com
Subject: Re: Topband: DSP and Latency
From: "Richard (Rick) Karlquist" <richard@karlquist.com>
Date: Wed, 18 Mar 2015 11:06:11 -0700
List-post: <topband@contesting.com">mailto:topband@contesting.com>
On 3/18/2015 7:38 AM, Bill Cromwell wrote:

managed. The real sticking place for me is the delay between pressing
the key (CW of course) and the beginning of the dit or dah. Again when

Bill  KU8H


There is a very straightforward fix for this latency.
Simply use a POTS telephone line with a phone patch.
Receive audio comes in, and CW tones go out.  At
the remote site, a tone decoder generates key closures.
I measured 50 ms latency on a 100 mile phone connection.
And you never get audio glitches.

Rick N6RK
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