JRC NT337-XL2, Инструкция по эксплуатации

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3-26
The CPU in the IF section performs the AGC, the cable loss compensation, and the monitoring and
control functionalities.
Figure 3-1is a block diagram of the AP-RFU.
t o I F U
AP-RFU
WG
BPF
RF
SW
LNA
SW
2.4GHz
Synth
2 6G :× 5
×n
×2
DOWN̲CONV
T RS EL ( RF )
PA
×2
UP̲CONV
F RE Q ̲C NT
IF部
H Y B
A S K
M O D E M
T e m p
C N T
D / A
D / A
AG C
×2
1 2 8 2 . 5
M H z
A T P C
A G C
2 1 3 . 7 5
M H z
M A X ̲ H O L D /
A V E R A G I N G
A / D
TRCNT
V a ri ab l e[ 20 d B]
T e m p
C N T
R F U
|
I F U
C o n t
T e m p S e n s
VAR̲ATT
[30dB]
C A B L E
L O S S
DC +1 6 V
LOGAMP
TMG
Gen
TH
CNT
O b s t a c l e
i n f o r m a t i o n
T RS EL ( RF )
F R EQ ̲C N T[ DA TL C LK /L E ]
4 2 7 . 5
M H z
S A W ̲ B P F
I F ̲ F r e q
1 7 1 0 M H z
S A W ̲ B P F
Horn
Ante nna(V /H)
or
Omni
Ante nna(V /H)
×3
BPF
SAW
BPF
B P F
B P F
LOGAMP
SAW̲BPF
A GC 2
RX̲LVL
CNT
AUTO ON/OFF
AG C 2
RFU-IF
RFU̲PS
Serge protection
C oa x a l
C A B L E
HYB
COMP
Figure 3-1 AP-RFU Block Diagram
3.1.5. Operations and Indications
The AP-RFU does not have any operation or indication panels.
3.1.5.1. Indications
The AP-RFU does not have any LEDs or other status indicators.
3.1.5.2. Switches
The AP-RFU does not have any switches.