Nautel XR6, Operation And Maintenance Manual

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XR6/XR3 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: XR6/XR3 RF Output Filter
NOTE:
The XR6/XR3 has one (optionally two) 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
RF Powe
r
Mod
u
le 2
RF 1 (B)
RF 2 (B)
T1
A3
RF
Cu
rrent Prob
e
Shunt Cap
a
citor
Bank
A5
S
tatic Drain
Ch
oke
Series Cap
a
citor
C7
Spark gap
RF Out
to Antenn
a
L3 L5
L4
Rela
y
Re
lay
Paral
lel Inductors (2)