Specifications

REtry
n
Default: 10
Mode:
packet
Host: RY
0 to 15
specifies the maximum number of
packet
retries before the PK-96
"gives
up" sending that
packet.
The AX.25
protocol
uses the retransmission of frames that haven'g
been acknowledged as
a means to en-
sure that a// transmitted frames are received.
The
number
of retries that the PK-96 will attempt
is
set by this
command. If the number of retries is
exceeded, the
packet
link
mal be
lost.
SENDPAC n
Mode:
packet
Defaulr:
$0D
(CTRL-M)
or
(RETURN)
0 to
$7F
(0
to 127
decimal) specifies an
ASCII
character code.
Use SENDPAC to select the
character used to cause a
packet
to be sent in Converse
mode. The
parameter
"n"
is the ASCII
code for the character
you
want to use to force
your
typed input to be sent. Use the
de-
fault SENDPAC value,
$0D,
for
ordinary conversation with ACRPACK ON to send
packets
at
natural in-
tervals.
Slottime n Default:
30
(300
mS)
Mode;
packet
Host: SL
"n"
0 to 250 specifies the time the PK-96 waits
between
generating
random numbers to see i[ it can
transmit.
The SLOTTIME
parameter
works
with the
PPERSIST
and
PERSIST
parameters
to
achieve
trlre
p-per-
sistent
CSMA
(Carrier-Sense
Multiple Access) in
packet
operation.
SQuelch ONOFF
Mode: packet
OFF Your PK-96 responds to negative-going
squelch
voltage.
ON
Your
PK-96 responds to
positive-going
squelch
voltage.
Normally,
your
PK-96
uses its CSMA
(Carrier
Sense Multiple Access) circuit
to
decide whether or not it's
clear to transmit on a
packet
channel.
If
there are non-packet signals on the channel
you're
using-such as
voice-you'll
want to use true RF-carrier
CSMA by monitoring the squelch
line
voltage
from
your
radio.
With
SQUELCH OFF, the PK-96 inhibits transmissions when
there
is a
positive
voltage on the radio
connector's squelch input line. When there is no voltage
or
connection to this
pin,
the PK-96 allows
pack-
ets to be sent.
With SQUELCH
OM the
PK-96 will inhibit
packet
transmissions
when no voltage is applied to the
squelch
input
pin
on the Radio connector.
Ncrrp:
If
you
need to use
this
command,
you
also
need to
have
the black wire in the supplied radio cable
hooked
up.
Host: SP
Delault:OFF
Host: SQ
STArt n
Mode:
packet
0
to
$7F
(0
to 121
decimal) specifies
an ASCII character code.
Default:
$11
(CTRL-Q)
Host: ST