Timewave DSP-232, Operating Manual

Page: 224 / 271

Chapter 12 PACTOR Operation
Two or more stations can’t use the same call and SSID on the air at the same time. Use a different SSID this is the
case.
MYCALL
must be entered for you to use the PACTOR Maildrop; the callsign is used for
message routing and identification.
MYcall call [- n ] Default: DSP232
Mode: packet and PACTOR Maildrop Host: ML
call
Your callsign
“ n ” 0-15, indicating an optional SubStation ID, (SSID)
Use the
MYCALL
command to load your callsign into your DSP. The DSP232 default callsign is present in your
DSPs ROM when the system is manufactured. This “artificial call” must be changed for packet operation.
The SSID is usually added so the DSP can respond to two different tasks—as a “base” station and digipeater, a
digipeater and Maildrop, or a base station and Maildrop. An example of using the SSID suffix is given in
Chapter
5: Packet Operation .
Two or more stations can’t use the same call and SSID on the air at the same time. Use a different SSID this is the
case.
MYCALL
must be entered for you to use the PACTOR Maildrop; the callsign is used for
message routing and identification.
MYPTcall call
Default: none
Mode: PACTOR Host:Mf
Use the
MYPTCALL comand to load your PACTOR call into your DSP. (Limit: 10 characters.)
If you haven’t loaded your callsign into the DSP with
MYPTCALL , the callsign loaded in MYCALL will be used.
The difference between
MYCALL
and
MYPTCALL
is that
MYCALL
allows only the dash (-) to be used while
MYPTCALL
will allow any punctuation with the call. Example:
MYPTCALL KB6IUX/AE
.
If calls have not been loaded into either
MYCALL
or
MYPTCALL
, the DSP won’t allow PACTOR transmission—
an error message of
Need MYCALL
will be displayed if transmission is attempted.
OVer
Immediate Command
Mode: AMTOR, PACTOR Host: OV
An immediate command that reverses the link direction from ISS to IRS; this can be considered the opposite of the
function of
ACHG . The changeover happens as soon as possible—the DSP doesn’t wait for all the characters in its
buffer to be sent.
OVER
should be thought of as analogous to
RCVE
—as neither command waits for the buffer to empty—the same
way the PTOVER character is analogous to the RECEIVE character (both wait for empty). Host applications can
use
ZSTATUS
to detect when all characters have been sent.
In
PTCONN
, this command accomplishes the same thing as sending the
PTOVER
character.
OVER
is useful in
Host mode when sending transparent data ( CONMODE TRANS ). To change from ISS to IRS, you’d normally
send the
PTOVER
character, but in Transparent mode, the character would be sent as data and would not change
the link direction.
OVER
changes the direction without the need to change
CONMODE
to
CONV
first.
12-16 September, 05