[GreenKeys] RTTY Answerback Unit

[Steve Garrison]

Before you ask, no I don’t have an article!  It’s all in my head, what there is of it!!  😊

 

From: greenkeys-bounces at mailman.qth.net <greenkeys-bounces at mailman.qth.net> On Behalf Of Paul Heller
Sent: Thursday, January 16, 2020 12:06 PM
To: Alf Fisher <alf at blunham.com>
Cc: Greenkeys <greenkeys at mailman.qth.net>
Subject: Re: [GreenKeys] RTTY Answerback Unit

 

A device plugged in the loop that waits for WRU and just keys the loop accordingly. That’s all it does. Teletype actually made one of these - mechanical of course. 

 

This could be done with modern solid state technology. Surely there must be an article somewhere.

 

Paul
W2TTY

ITTY:                      HTTP://INTERNET-TTY.NET:8000/ITTY
AUTOSTART: HTTP://INTERNET-TTY.NET:8030/AUTOSTART
EUROPE:              HTTP://INTERNET-TTY.NET:8040/EUROPE





On Jan 16, 2020, at 9:24 AM, Alf Fisher <alf at blunham.com <mailto:alf at blunham.com> > wrote:

 

Hello Greenkeys folks, 

One of the essential features of a machine for use on i-Telex is that it has an answerback unit and I know that a workaround has been developed by the designers.

Unfortunately not every machine has this installed or making the wards is a somewhat exacting process that is beyond the ability of those of us who do kitchen table engineering! 

I was thinking how hard would it be to make an electronic device to perform the function.

Has anyone had experience of building an electronic answerback unit that could be initiated on receipt of the code. 

In building your own, I don’t think there is any good reason why it couldn’t have more characters than the normal 20.

I wouldn’t be surprised if someone has written an article in one on the various magazines.

 

Any ideas?

 

Alf, G3WSD

 

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