14
Press
“ ”
on the keyboard to enter
“
Medium Power (Low)
”
and press Enter. Press
“←
/
→”
key to make the TX power at 2+/-
0.2w and then press Enter to store the setting. Use the same way to
adjust
“
Medium Power (Medium), Medium Power (Medium High),
Medium Power (High)
”
at 2+/-0.2w.
Press
“↓”
on the keyboard to enter
“
High Power (Low)
”
and
press Enter. Press
“←
/
→”
key to make the TX power at 4+/-0.3w
and then press Enter to store the setting. Use the same way to
adjust
“
High Power (Medium), High Power (Medium High), High
Power (High)
”
at 4+/-0.3w.
6.3.5 Frequency Deviation Adjustment
Input 150mV, 1000Hz audio signals from the radio MIC, and press
“↓”
to enter
“
AK2346 VR2 Wide Band Low
”
and press Enter.
Press
“←
/
→”
key to make the maximum frequency deviation at
3.9+/-0.2KHZ.
Use the same way to make the maximum frequency deviation of
“
AK2346 VR2 Wide Band Medium
”
,
“
AK2346 VR2 Wide Band
High
”
at 3.9+/-0.2KHZ;
“
AK2346 VR2 Medium Band Medium
”
at 3.2+/-0.1KHZ;
“
AK2346 VR2 Narrow Band Medium
”
at 2.0+/-
0.2KHZ. (Notice: On the comprehensive test device, the audio
output level is 150mv and the filter is set to 50HZ~15K.)
6.3.6 DCS (DQT) TX Signal Wave Shape and Frequency
Adjustment
Under the computer test mode, press
“↓”
on the keyboard to
enter
“
DCS Frequency Deviation (Wide, Low)
”
and press Enter.
Press
“←
/
→”
key to make the DCS Frequency Deviation at
0.85+/-0.15KHZ. Use the same way to adjust
“
DCS Frequency
Deviation (Wide, Medium)
”
“
DCS Frequency Deviation (Wide,
High)
”
at 0.80+/-0.10KHz;
“
DCS Frequency Deviation (Medium,
Medium)
”
at 0.6+/-0.1KHz;
“
DCS Frequency Deviation (Narrow,
Medium)
”
at 0.4+/-0.1KHz. (Notice: The filter is set to
20HZ~300HZ.)
6.3.7 CTCSS (QT) Frequency Deviation Adjustment
Under the computer test mode, press
“↓”
on the keyboard to
enter
“
CTC Frequency Deviation (67.0HZ ,Wide, Low)
”
and
press Enter. Press
“←
/
→”
key to make the CTC Frequency
Deviation at 0.80+/-0.10KHZ. Use the same way to adjust
“
CTC
Frequency Deviation (67.HZ ,Wide, Medium)
”
,
“
CTC Frequency
Deviation (67.HZ, Wide, High)
”
at 0.80+/-0.10KHZ;
“
CTC
Frequency Deviation (67.0HZ, Medium, Medium)
”
at 0.6+/-
0.1KHZ;
“
CTC Frequency Deviation (67.0HZ, Narrow, Medium)
”
at 0.4+/-0.1KHZ; the test and specifications are the same for
“
CTC
Frequency Deviation (136.5HZ) and
”
CTC Frequency Deviation
(254.1HZ). (Notice: The filter is set to 20HZ~300HZ.)
6.3.8 DTMF Frequency Deviation Adjustment
Under the computer test mode, press
“↓”
on the keyboard to
enter
“
DTMF Frequency Deviation (Wide Band)
”
and press
Enter. Press
“←
/
→”
key to make the DTMF Frequency Deviation
at 3+/-0.3KHZ.
Press
“↓”
on the keyboard to enter
“
DTMF Frequency
Deviation (Medium Band)
”
and press Enter. Press
“←
/
→”
key to
make the DTMF Frequency Deviation at 2.3+/-0.2KHZ.
Press
“↓”
on the keyboard to enter
“
DTMF Frequency
↓
Deviation (Narrow Band)
”
and press Enter. Press
“←
/
→”
key to
make the DTMF Frequency Deviation at 1.5+/-0.1KHZ.
6.3.9 TONE Frequency Deviation Adjustment
Under the computer test mode, press
“↓”
on the keyboard to
enter
“
TONE Frequency Deviation (Wide Band)
”
and press
Enter. Press
“←
/
→”
key to make the TONE Frequency Deviation
at 3+/-0.3KHZ.
Press
“↓”
on the keyboard to enter
“
TONE Frequency
Deviation (Medium Band)
”
and press Enter. Press
“←
/
→”
key to
make the TONE Frequency Deviation at 2.3+/-0.2KHZ.
Press
“↓”
on the keyboard to enter
“
TONE Frequency
Deviation (Narrow Band)
”
and press Enter. Press
“←
/
→”
key to
make the TONE Frequency Deviation at 1.5+/-0.1KHZ.
6.3.10 VOX Gain Debugging
Under the computer test mode, press
“↓”
on the keyboard to
enter
“
VOX Gain 5 (Medium)
”
(set the output level on the
comprehensive test device to 15mv) and press Enter to store the
data ----- do not press Enter until the numbers on the screen
become steady.
Press
“↓”
on the keyboard to enter
“
VOX Gain 1 (Medium)
”
(set the output level on the comprehensive test device to 100mv)
and press Enter. Do not press Enter to store the data until the
numbers on the screen become steady.
6.3.11 Receiver Sensitivity
Under the computer test mode, set the comprehensive test device
at the sate of testing pass band, and press
“↓”
on the keyboard
to enter
“
Receiver Sensitivity (Low)
”
and press Enter. Press
“←
/
→”
key to make the frequency waveform to the middle of the
whole waveform. Then press Enter to store the data. It's the same
to other 4 testing points (notice the corresponding frequency
change).
6.3.12 AK2346 Receiving Voice Debugging
Under the computer test mode, set the RX frequency on the
comprehensive test device to the middle frequency among the 5
testing frequency points; signal strength at 1mv; AF voltage unit is
“
W
”
.
Press
“↓”
on the keyboard to enter
“
AK2346 VR3 (Wide Band,
Medium)
”
and press Enter. Press
“←
/
→”
key to make the AF
power to 0.4+/-0.05W. Set the AF power of
“
AK2346 VR3 (Medium
Band, Medium)
”
and
“
AK2346 VR3 (Narrow Band, Medium)
”
to
0.4+/-0.05W. (On the comprehensive test device, the AF deviation
is 3KHZ, 2.5KHZ, and 1.5KHZ separately.)
6.3.13 Receiver Squelch Setting
Under the computer test mode, press
“↓”
on the keyboard to
enter
“
SQL 1 ON (Wide Band, Low)
”
(on the comprehensive test
device the RX frequency is low frequency, SIAND is adjusted to
10dB). 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 ON (Wide Band, Medium Low)
”
,
“
SQL 1 ON (Wide
Band, Medium)
”
,
“
SQL 1 ON (Wide Band, Medium High)
”
, and
“
SQL 1 ON (Wide Band, High)
”
. (On the comprehensive test
device, the AF deviation is 3KHZ, 2.4KHZ, and 1.5KHZ separately.)
Press
“↓”
on the keyboard to enter
“
SQL 1 OFF (Wide Band,
Low)
”
(on the comprehensive test device the RX frequency is low
PT5200 SERVICE MANUAL
