PT500-2
Service Manual
37
Figure 7.1 External Speaker/microphone Interface Definition
7.2 Adjustment Items
Some detection and adjustment shall be made to the station technical data after changing
the components during the maintenance. The debugging introduction of some related
circuits goes as follows:
Some parameters of the product can be adjusted by use of PT500 Programming Software
of our company. The adjustable parameters are as follows
:
(
1
)
Frequency stability
(
2
)
RF transmitting high power
(
3
)
RF transmitting Middle power
(
4
)
RF transmitting Low power
(
5
)
Maximum TX voice deviation
(
6
)
VOX1(Tight)
(
7
)
VOX10
(
8
)
2/5 tone deviation
(
9
)
DTMF deviation
(
10
)
MSK deviation
(
11
)
DCS/LTR balance
(
12
)
DCS deviation
(
13
)
LSD deviation
(
14
)
CTCSS(67.0Hz) deviation
(
15
)
CTCSS(254.1Hz) deviation
(
16
)
Battery warning level
(
17
)
RX Sensitivity
(
18
)
DCS RX middle level
(
19
)
RX squelch 9 open level
(
20
)
RX squelch 9 close level
(
21
)
RX squelch 1 open level
(
22
)
RX squelch 1 close level
(
23
)
RSSI(-120dBm)
(
24
)
RSSI(-70dBm)
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