98 General Information TP9100 Service Manual
© Tait Electronics Limited May 2005
4.9 Visual and Audible Indications
Visual and audible indicators give information about the state of the radio.
Visual indications are provided by the status LED and LCD display.
The information conveyed by the status LED is listed in Table 4.10.
The LCD display normally displays channel and user information, or error
messages. For more information on the LCD display during normal
operation, refer to the user’s guide. The error messages are listed in Table 6.1
on page 131. Audible indications are provided in the form of different tones
emitted from the speaker. The information conveyed by the tones is given
in Table 4.11 on page 99.
Table 4.10 Visual indications provided by the status LED
LED color LED name Indications Meanings
Red Transmit LED is on The radio is transmitting
LED flashes (1) The transmit timer is about to expire
(2) The radio cannot transmit because the channel is busy
(3) The battery is low
(4) The radio is ready to use (on power-up)
Green Receive and
monitor
LED is on There is activity on the current channel, although it might
not be audible
LED flashes The monitor or squelch override has been activated
Amber Scanning LED flashes The radio has detected activity on a certain channel and
scanning has halted on this channel
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