home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
QRZ! Ham Radio 11
/
QRZ Ham Radio Callsign Database - Volume 11.iso
/
files
/
packet
/
tnc2mdm.arc
/
SCOTT.TUN
< prev
next >
Wrap
Text File
|
1988-06-28
|
1KB
|
32 lines
*****************************************************************************
Hi Scott,
Here is a fairly comprehensive modem tuneup procedure for 2211/2206 based
modems. When the appendices are included, there is a lot of modem
information gathered into 1 reference. Much of it I have never seen
published elsewhere.
Please publish this both in PSR and in whatever SIG(s) you feel appropriate
on compuserve. Although primarily intended for packet TNCs, much of the same
information presented here applies to RTTY modems based on the 2211/2206 pair
as well.
The appendices are not presented in any logical order. They appear in the
order they were written. If you want to rearrange them more logically, feel
free to do so.
The description of the DCD modification for TNC-2s is short of specific
physical location information because the TNC which I used to check out the
mod was a MFJ-1274. I am not sure how closely the 1274 board resembles the
other TNC-2 clones in the modem area. This means that the people who do this
mod will have to find the physical locations of connections from the
schematic part number references and then trace them out on the board. I
don't have time right now to put the mod in a TNC-2 and rewrite the
modification procedure. I may be able to do that in the future sometime if
you think it would be really useful to do so.
Thanks & 73
Eric Gustafson N7CL