Tait TM8000 Series, Руководство по обслуживанию

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TM8100 Mobile Radio Service Manual General Information 103
May 2004 © Tait Electronics Limited
Invoking CCTM
Using the terminal program, place the radio in CCTM as follows:
1. Enter the character
^
to reset the radio.
2. As soon as the radio is reset, the letter v is displayed. (If an
uppercase letter
V
appears, this implies a fault.)
3. Immediately the letter v is displayed, enter the character % . (The
character
%
must be entered within half a second of the letter
v
appearing.)
4. If the character
%
is accepted, the character
–
is displayed in
response, and the message CL (two-digit display) or C (one-digit
display) appears on the radio’s LCD screen. This implies that the
radio has entered CCTM. If the attempt fails, repeat Steps 1 to 3.
CCTM Error Codes
Once the radio is in CCTM, the CCTM commands may be entered as
shown in
Table 4.5 to Table 4.9 . Depending on the command, a
response might or might not be displayed. If an error occurs, an error
code will be displayed. Possible error codes are listed in
Table 4.10 .
Table 4.9 CCTM commands in the transmitter category (part 2)
Command
Usage
Entry at keyboard Response on screen
Transmitter category
331 – Final bias 1
Sets or reads the bias voltage for
the first PA
331
(to read value)
x
where x is the DAC value of the
bias voltage (an integer from 0 to
255)
331 x
(to set value)
where x is the DAC value of the
required bias voltage
(any integer from 0 to 255)
None
332 – Final bias 2
Sets or reads the bias voltage for
the second PA
332
(to read value)
x
where x is the DAC value of the
bias voltage (an integer from 0 to
255)
332 x
(to set value)
where x is the DAC value of the
required bias voltage
(any integer from 0 to 255)
None