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PK-88 OPERATING MANUAL
n
DWAIT
n
Parameters:
DWAIT helps avoid collisions with digipeated packets.
Unless the PK-88 is waiting to send digipeated packets, DWAIT forces the PK-88 to pause after last
hearing data on the channel, for the duration of the DWAIT (Default Wait) time, before beginning
its transmitter key-up sequence.
Wherever possible, the value of DWAIT should be agreed on by all stations in a local area when
digipeaters are used in the area. The best value will be determined by experimenting.
DWAIT is a function of the key-up time (TXDELAY) of the digipeater stations and helps alleviate
the drastic reduction of throughput that occurs on a channel when digipeated packets suffer colli-
sions.
DWAIT is necessary because digipeated packets are not retried by the digipeater, but are always
restarted by the originating station. When all stations specify a default wait time, and the right val-
n
ue of
is chosen, the digipeater captures the frequency every time it has data to send - digi-
peated packets are sent without this delay.
Recommended settings of DWAIT for different types of packet station operation are:
Your PK-88 always uses a DWAIT value of 0 (zero) when you digipeat someone else's packet. If
DWAIT is set to any other value, the PK-88 simply ignores it.
NOTE:
DWAIT is inoperative when PPERSIST is ON as in KISS/TCP/IP operation.
ECHO ON|OFF
Parameters:
ON
OFF
The ECHO command controls local echoing by the PK-88 when it is in Command or Converse
Mode. Local echoing is disabled in Transparent Mode.
Set
ECHO ON
if you do not see your typing appear on your display.
Set
ECHO OFF
if you see each character you type doubled.
ECHO is set correctly when you see the characters you type displayed correctly.
Mnemonic: DW
0 to 250 specifies default wait time in ten-millisecond intervals.
TYPE OF OPERATION TIME (in ms) DWAIT VALUE
Digipeaters
Local keyboards
PBBSs, Hosts
File transfers
Mnemonic: E
Characters received from the computer or terminal ARE echoed by the PK-
88.
Characters are NOT echoed.
Default: 16
0
0
160
16 (default)
320
32
480
48
Default: ON
5 - 33
COMMAND SUMMARY
PK-88 - 108
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Troubleshooting
