PT4208 Service Manual
10
DTMF Encoder Sequences (1~12)
Please refer to the “Help” document of KSP4208 for
details.
Note:
1. Please firstly read data of the radio and back up the data
before editing the parameters on KSP4208.
2. If the radio cannot function normally after being written in
with the edited data, please rewrite the backup data into the
radio.
3. “Model Information” is important for the radio; users
should not modify it.
* PC Test Mode
Connect the radio to the serial port of the computer with
the special programming cable. Refer to figure 4.1.
Warning:
Before entering the PC Test Mode, please firstly
connect a 50
Ω
HF load to the antenna connector of the radio
or connect the radio to a general test set.
With the KSP4208 programming software, you can enter
the Tuning Mode under PC Test Mode to tune the following
parameters of the radio:
(1)
Frequency stability
(2)
Five frequency points of Tx High Power
(3)
Five frequency points of Tx Low Power
(4)
Five frequency points for SQL9 On (Wideband)
(5)
Five frequency points for SQL9 Off (Wideband)
(6)
Five frequency points for SQL9 On (Narrowband)
(7)
Five frequency points for SQL9 Off (Narrowband)
(8)
Five frequency points for SQL1 On (Wideband)
(9)
Five frequency points for SQL1 Off (Wideband)
(10)
Five frequency points for SQL1 On (Narrowband)
(11)
Five frequency points for SQL1 Off (Narrowband)
(12)
Five frequency points for QT (67.0Hz) Deviation
(Wideband)
(13)
Center frequency point for QT (67.0Hz) Deviation
(Narrowband)
(14)
Five frequency points for QT (151.4Hz) Deviation
(Wideband)
(15)
Center frequency point for QT (151.4Hz) Deviation
(Narrowband)
(16)
Five frequency points for QT (254.1Hz) Deviation
(Wideband)
(17)
Center frequency point for QT (254.1Hz) Deviation
(Narrowband)
(18)
Five frequency points for DQT Deviation (Wideband)
(19)
Center frequency point for DQT Deviation
(Narrowband)
(20)
Five frequency points for Rx Sensitivity
(21)
Center frequency of DTMF Deviation (Wideband and
Narrowband)
(22)
Tx Low Voltage
(23)
Rx Low Voltage
* Firmware Programming Mode
The radio is in possession with an internal Flash ROM
which can be upgraded when new features are released.
Procedure:
1.
Press and hold the Top Key for over 2 seconds while
turning the radio power ON. The LED will light orange
and the radio enters the Firmware Programming Mode.
2.
Run the firmware programming software KMU on PC.
3.
Connect the radio to the computer by the programming
cable.
4.
Select a COM port and load the firmware upgrading file.
Then click on “E.P” to start downloading.
5.
If the communication ends successfully, turn the radio
power OFF to exit.
6.
If you want to continue programming other radios,
repeat steps 1 to 5.
* Wired Clone Mode
If the wired clone function is enabled, the radio can enter
the Wired Clone Mode. After entering this mode, the radio
will not exit automatically. The user needs to reboot the
radio if he wants the radio to return to the User Mode.
The operation is as follows:
1.
Press and hold Side Key 2 for over 2 seconds while
turning the radio power ON to enter the Wired Clone
Mode. The radio will enter User Mode if wired clone
function is disabled.
2.
Connect the slave radio to the master radio by the
cloning cable (KCL-01) and turn on the power of the
slave radio.
3.
Press Side Key 1 on the master radio to start cloning.
Then the red LED on the master will light. The data of
the master is sent to the slave. While the slave is
receiving the data, the LED lights green. When cloning
of data is completed, the red LED on the master will go
out, and the slave radio will reboot automatically.
Summary of Contents for PT4208
Page 1: ......
Page 35: ......
Page 36: ......
Page 39: ...PT4208 Service Manual 38 Figure 7 PT4208 Main Board Top Layer Layout 420 470MHz ...
Page 40: ...PT4208 Service Manual 39 Figure 8 PT4208 Main Board Bottom Layer Layout 420 470MHz ...
Page 46: ...PT4208 Service Manual 45 Figure 14 PT4208 Main Board Top Layer Layout 136 174MHz ...
Page 47: ...PT4208 Service Manual 46 Figure 15 PT4208 Main Board Bottom Layer Layout 136 174MHz ...
Page 48: ...PT4208 Service Manual 47 Figure 16 KBC 70C Schematic Circuit Diagram ...
Page 49: ...PT4208 Service Manual 48 Figure 17 KBC 70C Top Layer Position Value Diagram ...
Page 50: ...PT4208 Service Manual 49 Figure 18 KBC 70C Top Layer Position Mark Diagram ...
Page 51: ...PT4208 Service Manual 50 Figure 19 KBC 70C Bottom Layer Position Value Diagram ...
Page 52: ...PT4208 Service Manual 51 Figure 20 KBC 70C Bottom Layer Position Mark Diagram ...
Page 53: ...PT4208 Service Manual 52 Figure 21 KBC 70C Layout ...