Kirisun DM588 - Page 24

DM588 Service Manual
Item Environment
Measurement Tool and Method
Index Requirement
Test Device
Test Point
Tool
Method
5. Analogue MOD1
Set general-purpose
tester to TX state.
(After resetting the tester,
TX TEST is set by
default.)
General-purpose
tester
Connect
antenna
interface of the
radio to RF
IN/OUT interface
of the tester
PC
1) Run the debugging software on the
PC, and set the tester to adjustment
mode;
2) Double click [Analogue MOD1],
and click [Low Frequency];
3) Click Start. When the AF Freq is
0.1kHz, observe the FM Deviation of
the tester, and adjust the values of
the software until the FM deviation is
5kHz±80Hz;
4) Respectively adjust the FM
deviation at medium and high
frequencies to the above range, and
click Stop.
6. Analogue MOD2
Set general-purpose
tester to TX state.
(After resetting the tester,
TX TEST is set by
default.)
General-purpose
tester
Connect
antenna
interface of the
radio to RF
IN/OUT interface
of the tester
PC
1) Run the debugging software on the
PC, and set the tester to adjustment
mode;
2) Double click [Analogue MOD2],
and click [Low Frequency];
3) Click Start. When the AF Freq is
6kHz, observe the FM Deviation of
the tester, and adjust the values of
the software until the FM Deviation is
5kHz±80Hz;
4) Respectively adjust the FM
deviation at medium and high
frequencies to the above range, and
click Stop.
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