Sony SPP-S9000 Service Manual page 14

• Transmission Wave:
ATTEN 10 dB
RL 0 dBm 10 dB/
MKR
903.392 MHz
–16.00 dBm
CENTER 904.2 MHz
RBW 30 KHz VBW
ATTEN 10 dB
RL 0 dBm 10 dB/
MKR
903.233 MHz
–14.67 dBm
CENTER 904.2 MHz
RBW 30 KHz VBW
ATTEN 10 dB
RL 0 dBm 10 dB/
MKR
903.233 MHz
–14.67 dBm
CENTER 904.2 MHz
RBW 30 KHz VBW
14
MKR –16.00 dBm
903.392 MHz
SPAN 5.000 MHz
SWP 50.0 msec
30 kHz
Fig. 1
MKR –14.67 dBm
903.233 MHz
SPAN 5.000 MHz
30 kHz SWP 50.0 msec
Fig. 2
MKR –14.67 dBm
903.233 MHz
SPAN 5.000 MHz
SWP 50.0 msec
30 kHz
Fig. 3
–5
–6
–4
–7
18dB
–3
–8
–9
[Check Center Frequency]
Measuring process
• Setting Spectrum analyzer:
Center frequency : 904.2 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 21)
• Measurement:
Measure transmitting wave f
(Refer Fig. 5)
• Specification:
904.2 MHz ± 27 kHz
• Center Frequency:
10dB/
f
–2
[Confirm Transmitting output]
Measuring process
• Setting Spectrum analyzer:
Center frequency : 904.2 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 21)
3
4
5
–1 7
6
1
2
–2
8
9
Fig. 4
(Formula of center frequency)
0
Tr-A
PN
f
f 1
f
–1
2
f
0
Fig. 5