AR>> back of the modem! it reads " Model: NC6400 " if that helps

IS> Sorry, I've never heard of it, not indeed of a 'trailblazer
 IS> 2400' at all.
IS> Hope somebody can help ..

 DH> According to my dim recollections, a NC6400 was close to a
 DH> T100.  PEP at 1400+cps, and 2400 baud & down in v.
 DH> recommendations.

Hmmm.  The 2400/Rel connects probably bear that out, and it's unlikely
Aaron would find any other PEP thingys to play with around here .. at least
the TR250s did pretty good V.32 as well.

 DH> It's nearly inoperable without a manual - the command set is _huge_.

I'm sure you're right; I wouldn't buy _any_ modem without a manual.  I've
even struck people having Octocom-based Dataplex modems without manuals,
and none of their Rockwell-toting mates can help at all. 'Try
AT%C2&Q9', or something, they'll say, without realising they've just
had you switch it irrevocably into leased line V.27ter mode, or somesuch ..

 DH> There is a PEP echo - there may still be a few active
 DH> participants.  The US forest service standardized on 'em at
 DH> one stage, and the Australian backbone ran on little else.

.. and they were worth a good grand, second hand.  Days of yore, for sure. 
I recall being offered Bill Bolton's at one stage for $1400, and missing
out :)

IS> that, but older Telebit modems (I assume it's 'older'?) might have a few
IS> different settings to more modern or common brands.

 DH> It's "mid older".  Later than a T100, not late enough to have v32.
 DH> A nice modem, well built.  Still superb on reasonably wide

Was that one of the ones with a fan, and a case you could drive over?

 DH> band lines, even in the presence of horror level noise.
 DH> Doesn't like restricted bandwidth lines, aka ISD, or the
 DH> latest Telstra scam efforts - can and does narrow down to
 DH> 500 cps or less.

I remember hearing ADPCM just about killed their international usefulness :(

 DH> I stopped running an original Trailblazer only a few months back.

Not much use without another one on the other end, is the problem these
days; seems overkill for a 2400 bps modem.  The museums will relish these
oneday ..

Cheers, Ian

--- MaltEd 1.0.b5