15
frequency, SIAND is adjusted to 8dB. Press Enter to watch the RX
sensitivity and press Enter to store the data after the value
becomes steady. It's the same for
“
SQL 1 OFF (Wide Band,
Medium Low)
”
,
“
SQL 1 OFF (Wide Band, Medium)
”
,
“
SQL 1
OFF (Wide Band, Medium High)
”
, and
“
SQL 1 OFF (Wide Band,
High)
”
.
Press
“↓”
on the keyboard to enter
“
SQL 9 ON (Wide Band,
Low)
”
(on the comprehensive test device the RX frequency is low
frequency, SIAND is adjusted to -117dB). Press Enter to watch the
RX sensitivity and press Enter to store the data after the value
becomes steady. It's the same for
“
SQL 9 ON (Wide Band,
Medium Low)
”
,
“
SQL 9 ON (Wide Band, Medium)
”
,
“
SQL 9
ON (Wide Band, Medium High)
”
,
“
SQL 9 ON (Wide Band,
High)
”
,
“
SQL 9 OFF (Medium Band, Medium)
”
and
“
SQL 9
OFF (Narrow Band, Medium)
”
.
Press
“↓”
on the keyboard to enter
“
SQL 9 OFF (Wide Band,
Low)
”
(on the comprehensive test device the RX frequency is low
frequency, SIAND is adjusted to -119dB. Press Enter to watch the
RX sensitivity and press Enter to store the data after the value
becomes steady. It's the same for
“
SQL 9 OFF (Wide Band,
Medium Low)
”
,
“
SQL 9 OFF (Wide Band, Medium
”
,
“
SQL 9
OFF (Wide Band, Medium High)
”
,
“
SQL 9 OFF (Wide Band,
High)
”
,
“
SQL 9 OFF (Medium Band, Medium)
”
and
“
SQL 9
OFF (Narrow Band, Medium)
”
.
Chapter 7 Technical Specifications
7.1 General Specification
Frequency
（
）
Modulation
Number of Channels
Channel Spacing
MF
Working Voltage
Working Temperature
Antenna Impetance
Mic Impedance
Battery (Standard)
Dimension (WxHxD)
Weight
MHz
136~174MHz 470~512 MHz
400~450MHz 350~390 MHz
420 ~ 470MHz
16K0F3E
16
25 kHz
（
W
），
20
（
M
），
12.5
（
N
）
1st MF
：
51.65MHz 2nd MF
：
450kHz
7.5V negative grounding
-25
℃
~ +55
℃
50
Ω
2k
Ω
Model
：
KB-58L
，
Li-Ion Battery DC 8.4V , 1200mAh
56 mm
×
102 mm
×
29 mm
235g
（
With battery and antenna
）
kHz
kHz
7.2 Receiver
Available Sensitivity (12dB SINAD)
Squelch Activation Sensitivity
Receiver Surplus Output
Modulation Receiving Bandwidth
Adjacent Channel Selectivity
Intermediation Reject Ratio
Spurious Response Reject Ratio
Audio Output Power
Receiver Surplus Output
Modulation Receiving Bandwidth
≤
0.28
μ
V
≤
0.25uV @ level 3 squelch
≤
-45dB
±
7kHz
≥
70dB
≥
65dB
≥
70dB
Internal speaker
：
500mW
，
balance
@ distortion
≤
5%
，
16
Ω
≤
350mA
≤
20mA
7.3 Transmitter
RF Power
Frequency Stability
Maximum Modulation Frequency
Deviation
Modulation Sensitivity
Modulation Distortion
（
300~3000Hz
）
Adjacent Channel RF Power
Spurious and Harmonics
Residential Frequency
Modulation
Transmitting Current Sinking
4.0W @7.5V DC
-6
≤
2.5
×
10
±
5kHz
15mV
≤
3%
≤
-70dB
≤
-70 dB
≤
-45 dB
≤
1.8A @ 7.5V DC
±
Chapter 8 Trouble Shooting
No display after
switching on the
radio.
PLL is
unlocked.
(Beep
sounds)
Cannot talk to
or hear other
group
members.
Cannot receive
signals.
The indicator
lights red when
in transmitting
but no voice
can be heard.
The indicator
lights green
when in
receiving but no
voice can be
heard.
Cannot
program the
radio
parameters
normally.
Battery power may be insufficient. Recharge or
change the battery pack.
The power switch is broken, and please change it.
The CPU is broken, and please change it.
The radio is remote killed and reprogram it.
The PLL crystal oscillator X301 is broken, and
please change it.
The oscillatingtube is broken, and please change
it.
The PLL chip IC301 is broken, and please change
it.
Make sure the two communication radios are
using the channel of the same frequency.
Make sure the CTCSS/DCS tone is the same as
that of your group members.
Out of the effective communication range.
The antenna is not well connected, and please
screw the antenna again until secure.
HF amplifier Q26 is broken, and please change it.
The squelch level is too high and the squelch
cannot be activated. Reset the squelch level with a
computer.
Mixer tube Q21 is broken, and please change it.
MF processing chip IC408 is broken, and please
change it.
The power amplifier tube Q104 is broken and
there is no power output and please change it with a
new tube.
The microphone is broken, and please change it
with a new one.
The operational amplifier IC402 is broken, and
please change it with a new one.
The speaker is broken, and please change it with
a new one.
The audio amplifier IC401 is broken and please
change it with a new one.
The switch tube Q404 and Q405 is broken, and
pleas change it with a new one.
The operational amplifier IC408 is broken, and
please change it with a new one.
Make sure the programming cable is well
connected.
The computer RS-232 serial port output is
unmoral, and please fix the computer.
The MIC is not well connected with the SPK
socket. Check the socket and if it is unable to work
normally please change it with a new one.
1
2
3
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5
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7
PT5200 SERVICE MANUAL
