[QCWA] Elmer question - running a fax machine

[Tom Repstad - K1VG]

I don't think you can fool a modern fax machine without providing at least a
dial tone. Somebody may have made an interface for fax/radio. Also, faxes
send/receive at the same time... don't think they could do the hand-shake to
connect. Phones only require two wires (tip & ring) ... yet they are capable
of sending/receiving at the same time. You'd probably need two radios on
different frequencies.Also faxes don't like "line-noise", I've done SSTV,
and you can see the static in the pictures sometimes. I think the fax would
barf on that one.

Maybe I'm being pessamistic here, but I've never heard of anybody
accomplishing that or exploring that technology.

--Tom
K1VG

----- Original Message ----- 
From: "Jeffrey D Angus" <jangus at socal.rr.com>
To: "Discussion of QCWA" <qcwa at mailman.qth.net>
Sent: Saturday, July 30, 2005 8:11 PM
Subject: Re: [QCWA] Elmer question - running a fax machine


>
>
> Keith Kotch wrote:
>
> >The scenario is you're an ARES operator with a fax machine at hand but
phone
> >lines are out.  You have traffic to send that is best sent by fax due to
> >details or drawings, etc.
> >
> The short answer is to have two FAX machines that are BOTH capable of
> manual send and receive. The big problem comes with fooling a machine
> into answering (i.e. going off hook) with an incoming ringer signal.
>
> If you can get the machines to work "back to back" (without the phone
> company ringing signal, dial tone dialing etc.) the next step is using a
> phone patch of sorts to connect them to either the receiver (incoming)
> or transmitter (out going)
>
> Jeff
>
>
> -- 
> "They that can give up essential liberty to obtain a little temporary
> safety deserve neither liberty nor safety." Benjamin Franklin
> "A life lived in fear is a life half lived."
> Tara Morice as Fran, from the movie "Strictly Ballroom"
>
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