– 21 –
[Check Center Frequency]
Measuring process
• Setting Spectrum analyzer:
Center frequency : 903.6 MHz (CH1)
RBW
: 10 kHz
VBW
: 10 kHz
Span
: 1 MHz
• Setting Test mode:
Continuous Transmit mode (CH1 High Power)
(Refer to “Test Mode” on page 18)
• Measurement:
Measure transmitting wave f
0
(Formula of center frequency)
(Refer Fig.5)
• Specification:
903.6 MHz ± 27 kHz
• Center Frequency:
Fig. 4
–9
–8
–7
–6
–5
–4
–3
–2
–1
1
2
3
4
5
6
7
8
9
18dB
[Confirm Transmitting output]
Measuring process
• Setting Spectrum analyzer:
Center frequency : 903.6 MHz (CH1)
RBW
: 1 MHz
VBW
: 100 kHz
Span
: 5 MHz
• Setting Test mode:
Continuous Transmit mode (CH1 High Power)
(Refer to “Test Mode” on page 18)
f
–1
f
–2
f
0
f
1
f
2
PN
Tr-A
10dB/
• Measurement:
Measure peak level by Spectrum analyzer.
DATA
(UNIT; dbm)
NO
HANDSET
BASESET
HIGH
MID
LOW
HIGH
MID
LOW
1
–3.93
–20.95
-34.53
–2.36
–19.17 –32.81
2
–3.70
–20.36
–33.75
–1.52
–18.33 –30.79
3
–4.47
–21.48
–34.78
–4.36
–18.65
–33.3
4
–4.64
–21.85
–35.12
–4.25
–19.37 –33.05
5
–4.52
–21.18
–35.54
–2.35
–19.05 –32.95
6
–4.02
–21.57
–35.12
–2.96
–19.14 –33.45
7
–5.03
–22.14
–35.45
–4.12
–19.12 –33.01
8
–5.58
–22.35
–35.61
–2.89
–18.56 –32.12
9
–4.03
–21.32
–35.82
–5.01
–18.33 –32.41
10
–4.43
–19.69
–33.92
–2.74
–17.28 –31.33
×
–4.435
–21.29
–34.96
–3.256
–18.7 –32.52
σ
0.5336
0.7634
0.6747
1.0562
0.5895 0.8273
×
+ 4
σ
–2.301
–18.24
–32.27
0.9687
–16.34 –29.21
×
– 4
σ
–6.569
–24.34
–37.66
–7.481
–21.06 –35.83
• Specification:
HANDSET MIN –17 dBm
(at High power: Include location loss)
BASE SET MIN –18 dBm
(at High power: Include location loss)
CENTER 903.600 MHz
RES BW 1.0 MHz
SPAN
5.000 MHz
SWP 20.0 msec
903.587 MHz
MKR
–3.67 dBm
AT 10 dB
.0 dBm
REF
PEAK
LOG
WA SB
SC FC
CORR
PLOTTER ADRS
10
dB/
VBW 100 kHz
0
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TEL 13942296513 QQ 376315150 892498299
