[BC] AP 10 Bells Survery

[Mark Humphrey]

Does anyone here know the specifics of the Extel data protocol -- in
other words, does it want to see Baudot,  7-bit ASCII, or what?

There's an abandoned Extel sitting on the shelf at one of my client
stations... so I'm thinking of asking to take it off their hands and
building a interface circuit to print RTTY.

The same station also has a classic old Type 15 in the closet...
tempting, but ya gotta draw the line somewhere.  If anyone is
interested in that, let me know your offer.  You'll pay the freight,
of course.

Mark

On 6/22/06, Bruce Potterton <bpotterton at ksgn.com> wrote:
> Yes, UPI used bells.  I designed a bell decoder so that when more than 4
> bells fired it would light a light in control room studio.  The Extell
> printer was down stairs.
>
>