Nautel XR12, Руководство по эксплуатации и обслуживанию

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XR12 Operations and Maintenance Manual Description
Issue 3.1 2013-03-14 Page 1-5
RF output filter
See electrical schematic
SD-4
. The RF outputs from the RF power modules are combined,
monitored, and filtered by the RF output filter stage, and then provided to the antenna system.
Figure 1.2: RF Output Filter
NOTE:
The XR12 has two (optionally three) RF power modules. Each RF power module has two parallel
inductors in the combiner.
RF
Power Modul
e 1
RF 1 (A)
# Spark Gap Sh
A4
Fo
rward/Reflected
Pow
e
r Prob
e
RF Sample
Forward Power Sample
Reflected Power Sample
RF Current Sample
A6
Surge Arrestor
RF 2 (A)
Shun
t Cap
a
citor
Ba
nk
T1
A3
RF
Cu
rrent Prob
e
Shunt Cap
a
citor
Bank
A5
S
tatic Drain
Ch
oke
Para
llel
Ca
p
a
citors C1
1, C12
Spark gap
RF Out
to Antenn
a
L7 L9
L8
Parallel Inductor
s
(2)
RF Powe
r
Mod
u
le 2
RF 1 (B)
RF 2 (B)
P
a
rallel Inductors
(2)
RF Po
wer
Mo
dule
3
RF 1 (C)
RF 2 (C)
Paral
lel Indu
ctors (2)