Timewave DSP-232, Operating Manual

Page: 86 / 271

Chapter 5 Packet Operation
OFF
The DSP uses AX.25 Level 2 Version 1.0 protocol.
This command allows the selection of either the old (version 1) version of the AX.25 packet protocol or the current
(version 2.0) protocol. Some implementations of version 1 of AX.25 protocol won’t properly digipeat Version 2.0
AX.25 packets. Most users run AX.25 version 2, but this command allows you to
( RETURN ) to the older version,
if necessary, for compatibility.
AXDelay
n Default: 0 (00 msec.)
Mode: packet Host: AX
“
n ” 0 to 180 specifies a key-up delay for voice repeater operation in 10mS intervals.
AXDELAY
specifies the period of time the DSP will wait—in addition to the delay set by
TXDELAY
—after keying
the transmitter and before data is sent. Packet groups using a standard voice repeater to extend the range of the local
area network may need to use this feature.
Repeaters with slow electromechanical relays, auxiliary links, or other circuits which delay transmission after the
RF carrier is present require more time to get RF on the air. Try various values to find the best value for “
n ” if
you’re using a repeater that hasn’t been used for packet operations before. If other packet stations have been using
the repeater, check with them for the proper setting.
AXDELAY
acts together with
AXHANG
.
AXHang
n Default: 0 (000 msec.)
Mode: packet Host: AH
“
n ” 0 to 20 specifies voice repeater “hang time” in 100mS intervals.
AXHANG
allows you to increase efficiency when sending packets through an audio repeater that has a hang time
greater than 100mS. When the DSP hears a packet sent within the AXHANG period, it doesn’t add the repeater key-
up delay (
AXDELAY
) to the key-up time. Try various values to find the best value for “ n ” if you’re using a repeater
that hasn’t been used for packet operations before. If other packet stations have been using the repeater, check with
them for the proper setting.
BBSmsgs ON
|
OFF
Default: OFF
Mode: packet, PACTOR Host: BB
OFF
The DSPs status messages work as before (default).
ON Makes the DSP status messages look like the TAPR-style output.
With
BBSMSGS ON , some of the status messages change or are suppressed which may improve operation of the
DSP with some BBS software. The following status messages are suppressed or changed with
BBSMSGS ON
:
No: (
parm
)
was
(
value
)
( parm ) now ( value )
(Connect
messages:)
; v2; 1 unACKed
xxx in progress:
(
dest
)
via
(
digis
)
Sends carriage ( RETURN ) before all other “
***
”
(
callsign
)
busy
message
Beacon EVERY | AFTER n Default: EVERY 0 (00 sec.)
Mode: packet Host: BE
EVERY Sends a beacon at regular intervals.
AFTER
Sends a beacon after the specified time interval without any packet activity.
“ n ” 0 to 250 sets beacon timing in 10-second intervals.
September, 05 5-25