1200 baud regen

[Jeff King]

I used the NJ7P and N7OO circuit on our 441.125/446.125 mhz 1200 baud data
repeater in Detroit back in the 90's. Worked remarkably well. As I recall,
it was a 74HC00 chip hanging off the disconnect header of a TNC2. Input from
the DCD keyed the repeater and there was a bit of hang time. Basically the
tx/rx where cross connected via the 7400 part. One advantage is the TNC2 was
still functional, we had it hooked to our NOS switch.
A quick google shows it in the PSR..

On Tue, Oct 6, 2009 at 10:36 PM, Bob Nielsen <n7xy at clearwire.net> wrote:

>
> On Oct 6, 2009, at 6:07 PM, Bill V WA7NWP wrote:
>
>  Another 1200 baud regen project has come up.   What resources do we
>> have available here on the list?   Any hardware?  Any specific
>> schematics?    It's probably time to ping Open Tracker Scott again and
>> see if he's considered it.
>>
>
> I recall that the NetRom manual had details about using a Hayes modem in
> conjunction with a TNC2.  NJ7P and N7OO came up with a simpler method
> (adding a couple of chips to a TNC) that they presented at a TAPR meeting
> about 15 years ago (I may have a copy of the paper around here somewhere).
>
> Bob
>
>
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