Components for Antenna Systems
Further
Components
Filter and Combiners
Patch Panels
Dehydrators
Coaxial Cables and Accessories
Direct Access Units
Mounting Hardware
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Filters and Combiners
FM
l
Easy expandable system design.
l
Temperature compensated.
ID
ABR
High 0
Q-cavities enable close channel spacing.
Attenuation/dB
uation/dB
l
BCA
for
and Filters Systems
rs
e
in
b
m
o
V
C
T
cast and
FM Broad
GEM
ENT
10
20
30
40
50
Attenuation/dB
-5
-4
-3
-2
-1
f0
+1
-0.8
-0.6
-0.4
-0.2
f0
+0.2
+2
+3
+4
+0.4
+0.6
+0.8
Frequency/MHz
+5
0
1
2
3
4
124
5
-1.0
11_Further_Components.indd 124
+1.0
Frequency/MHz
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Filter and Combiners
VHF, UHF
l
Several transmitters can be combined to one common antenna.
l
Kathrein supplies products of high quality brands.
Photo: Exir
Photo: Comtech
Further
Components
Photo: Spinner
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Patch Panels
l
Switching device for: – different transmitters
– antenna halves
– backup systems
– dummy loads
Easy connection and disconnection
of switching ports by special U-Links
Easy connection and disconnection of switching ports by special U-Links
Example: 6-ports, 3 U-Links
Example: 3-ports, 1 U-Link
Dummy
load
Antenna
Transmitter
Half
Antenna
Half
Antenna
Transmitter
Patch panel in combination with a UHF combiner
Photo: Spinner
Photo: Exir
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Dehydrators
l
Continuous air pressure within RF transmission lines.
l
Prevents the occurance of humidity and condensation.
l
Maintenance-free with fully automatic regeneration.
l
19ʺ rack-mounted or wall-mounted.
Photo: Friedl + Müller
Photo: Cibred
Typical ventilating system
Dual feeder system
Dehydrator
Gas inlet
Plastic air hose
Further
Components
Air distributor
Cable connector
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Coaxial Cables
and Accessories
l
Branch cables completely configurated, phase-adjusted and fully tested.
l
Feeder cables incl. accessories up to 61/8ʺ.
l
Fire retardant jacket available.
l
Air or foam dielectric cables.
Photo: RFS
Photo: RFS
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Direct Access Units
l
Quick and direct access to feeder cables.
l
Accurate measurements of VSWR and electrical length.
l
Antenna testing and tuning without dismantling the connected feeders.
l
For outdoor application.
l
Suitable for all broadcast standards.
Measurement operation
Antenna
main splitter
Antenna
main splitter
Through-section
Measurement insert
Main feeder
Main feeder
Further
Components
Normal operation
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