Transmit time-out, Minimum duration transmission – GAI-Tronics CB193-001 Call Boxes User Manual
Page 25
Pub.: 43004-031E
Model CB193-xxx, CB194-xxx, and CB195-xxx RF Call Boxes
Page
24 of 52
f:\radio products-current release\43004\43004-031e\43004-031e.doc
11/12
Transmit Time-Out
Step Action
Response
1
User presses PTT button
Call Box wakes from low-power sleep mode, checks transmit
channel activity, and the status lamp lights red to indicate unit is
operating in RX mode.
2
No transmit channel
activity detected
Call Box keys radio and transmits ANI code.
3 ANI
transmission
complete
Call Box emits a “go-ahead” splash tone over the speaker or
handset receiver, and the status lamp lights green as a signal to
talk.
4
User speaks into the
microphone
Call Box transmits audio over the radio while timing the transmit
duration.
5
Maximum transmit time
reached
Call Box un-keys the radio, the status lamp is off, and it emits a
“transmission-terminated” tone over the speaker or handset
receiver. The user must now release and repress the PTT button in
order to continue transmission.
6
User releases PTT button
Call Box proceeds as in steps 2 through 7 in “Normal Use” section.
Minimum Duration Transmission
Step Action
Response
1
User presses and releases
the PTT button
(momentary activation)
Call Box wakes from low-power sleep mode, checks transmit
channel activity, and the status lamp lights red to indicate a “wait”
period.
2
No transmit channel
activity detected
Call Box keys radio and transmits ANI code.
3 ANI
transmission
complete
Call Box emits a “go-ahead” slash tone over the speaker or handset
receiver, and the status lamp lights green as a signal to talk.
4
User speaks into the
microphone
Call Box transmits audio over the radio while timing the transmit
duration.
5
Minimum transmit time
reached
Call Box un-keys the radio, the status lamp is off, and it emits a
“transmission-terminated” tone over the speaker or handset
receiver. The user must now press and hold the PTT button in
order to continue transmission.