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PK-88 OPERATING MANUAL
TXDELAY 'n'
Parameters.:
'n' -
0 to 120 specifies ten-millisecond intervals.
The TXDELAY command tells the PK-88 how long to wait before sending packet frame data
after keying your transmitter's PTT line.
All transmitters need some amount of start-up time to put a signal on the air; some
need more, some need less. Some general rules apply:
•
Crystal-controlled radios with diode T/R switches are faster;
•
Synthesized radios need time for phase-lock loops (PLLs) to lock;
•
Radios with mechanical T/R relays need more time.
Experiment to determine the best TXDELAY value for a specific radio.
TXDELAY can also compensate for delays in the distant station's radio. If the distant
station's radio has slow recovery or release times when switching from transmit to
receive, increasing your TXDELAY may permit improved throughput by retarding the start
of your data Until the distant receiver has reached full sensitivity.
TXFLOW ON|OFF
Parameters:
ON -
Software flow control for the PK-88 can be activated in Transparent Mode.
OFF -
Software flow control for the PK-88 is disabled in Transparent Mode.
When TXFLOW is ON, the setting of XFLOW determines the type of flow control used in
Transparent Mode.
When TXFLOW is OFF, the PK-88 uses only hardware flow control; all data sent to the
terminal remains fully transparent.
When TXFLOW and XFLOW are ON, the PK-88 uses the Start and Stop characters (set by XON
and XOFF) to control the input from the terminal.
Unless TRFLOW is also ON, only hardware flow control is available to the computer or
terminal to control output from the PK-88.
If the PK-88 Start and Stop characters are set to $00, hardware flow control will
always be selected regardless of the setting of TXFLOW,
Mnemonic: TX
Mnemonic: TXF
5-89
Default: 30 (300 ms)
Default: OFF
COMMAND SUMMARY
PK88-171
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