
NX-220
94
Q201
Mixer
VCO
ASIC
IC610
Q303
IF Amp
IC904
SUM
SMF
400mW
C338
C353
XF1
MCF
IC302
FM IC
CF2
CF
C216
C246
LNA
Q202
C71
PLL
C477
C475
Q408
Q102
C482
D413
RXLO
Q103
Q104
C149
D412
–119.5dBm
–120.0dBm
–111.0dBm
–120.5dBm
–107.0dBm
12.5mVrms
(at MIC terminal)
42.6mVrms
–0.2dBm
31.5dBm
5.0W
IF1 (49.95MHz)
RF (Center Frequency)
RF (Center Frequency)
AF (1kHz)
R133
C106
C114
C120
IC2
C30
C335
–71.0dBm
IC610
ASIC
C605
186.2mVrms
186.2mVrms
226.2mVrms
23.5mVrms
DSP
IC603
–5.9dBm
9.7dBm
10.1dBm
AF (1kHz)
IF2 (450kHz)
IC901
Audio Amp
IC2
C35
C443
168.9mVrms(W)
84.5mVrms(N)
168.9mVrms(W)
84.5mVrms(N)
IC4
DAC
C903
68.0mVrms
43.9mVrms
VCO
IC6
IC610
ASIC
To make measurements in the AF section, connect the AC level meter. (ANT input: –53dB, 1kHz FM, 3kHz DEV (Wide))
In the RF section, use a 1000pF coupling capacitor.
(The display shows the SSG input value required to obtain 12dB SINAD without local level.)
AG is set to the MIC input becomes 3kHz/1.5kHz DEV at 1kHz MOD (Wide/Narrow).
To make measurements in the AF section, connect the AC level meter.
In the RF section, use a 1000pF coupling capacitor.
如要在AF部测量,则连接AC电平表。(天线输入: -53dBm, 1kHz FM, 3kHz DEV(宽带))
如要在RF部测量,请使用1000pF 耦合电容器。
(图中显示了获得12dB SINAD所需的SSG输入值,没有本地电平。)
AG被设为麦克风输入,在1kHz MOD(宽带/窄带)时为3kHz/1.5kHz DEV。
如要在AF部测量,则连接AC电平表。
如要在RF部测量,请使用1000pF耦合电容器。
Receiver Section /
接收部分
Transmitter Section /
发射部分
LEVEL DIAGRAM /
电平图