SECTION 3 - BASIC OPERATION
TRANSMISSION FLOWCHART
REQUEST:
1.
Activate the Request to Transmit output.
Wait the programmed Request Hold Time.
INHIBITS:
2.
Wait until both the Channel Busy and Terminal Busy inputs have
been clear for the programmed Channel Busy Time.
KEYING:
3.
Is the Transmitter already Keyed?
: Yes --> PAGE
4.
Is the Terminal programmed to Inhibit Transmit Relay?
: Yes --> Step 6
: No -
Close PTT Relay.
5.
Is the Terminal programmed for Remote Control?
: Yes --> Turn on HLGT
Wait programmed time
Turn off HLGT
Turn on FI tone
Set keyup delay to 250 ms
6.
Wait the programmed Key Up Delay Time.
PAGE:
7.
Send digital paging data.
GRANT:
8.
Is the Hold Request input asserted?
: Yes --> END
REPAGE
9.
Is another Batch ready to transmit?
: Yes --> KEYING
END:
10. Is Station ID required and timer expired?
: Yes - Set Digital Mode output to level for Audio data.
Turn off "Digital" LED.
Wait 50 milliseconds.
Transmit Morse code Station ID.
11. Is Terminal programmed to Inhibit Transmit Relays?
: Yes --> Step 12
: No -
Open PTT relay.
12. Turn off the "Transmit" LED.
13. Was the Transmitter Granted to another Terminal?
: Yes - Wait for Request Grant Time.
--> REPAGE
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