R&S®FU129 Antenna Filter Unit

Antenna switching, rotator control and signal attenuation, amplification and filtering

Key Facts

  • 1-out-of-6 antenna input selector
  • Frequency range from DC to 26.5 GHz
  • Suitable for outdoor use very close to antennas

Brief Description

The R&S®FU129 antenna filter unit is placed close to the receiving antennas. It comes standard with an antenna input selector for switching up to six antenna inputs to one output by remote control.

Specifications

Impedance  Frequency range
50 Ω DC to 26.5 GHz

Key Facts

  • 1-out-of-6 antenna input selector
  • Frequency range from DC to 26.5 GHz
  • Suitable for outdoor use very close to antennas
  • Integrated rotator control
    (azimuth and polarization/elevation)
  • Powerful options:
    • Five selectable attenuators for reducing strong signal levels
    • Three selectable amplifiers for different frequency ranges
    • Up to ten selectable filters with different characteristics
  • DC power supply for active antennas

Brief Description

The R&S®FU129 antenna filter unit is placed close to the receiving antennas. It comes standard with an antenna input selector for switching up to six antenna inputs to one output by remote control. Unwanted signals, such as those caused by nearby mobile radio base stations and strong sound and TV broadcast transmitters, can be reduced to levels suitable for the connected receiver by applying optional filters. This allows the suppression of strong useful signals as well as interfering signals.

All R&S®FU129 functions are controlled either directly by a control PC (connected to the R&S®FU129 via a LAN cable) or by the tried-and-tested R&S®GB127S antenna control unit.

Specifications

RF characteristics
Frequency range DC to 26.5 GHz
Impedance 50 Ω
Insertion loss up to 3 GHz
3 GHz to 6 GHz
6 GHz to 12 GHz
12 GHz to 26.5 GHz
≤ 0.8 dB
≤ 1.1 dB
≤ 1.7 dB
≤ 3.0 dB
Input VSWR up to 6 GHz
6 GHz to 12 GHz
12 GHz to 26.5 GHz
≤ 1.4
≤ 1.8
≤ 2.0
Contact switching time ≤ 15ms
Options
Attenuator option
(DC to 26.5 GHz)
without attenuation
stages 2 to 6
bypassed
typ. 3/6/10/20/40 dB
Amplifier option without amplification:
DC to 26.5 GHz
amplifier 1: 0.5 MHz to 35 MHz
amplifier 2: 20 MHz to 3 GHz
amplifier 3: 1 GHz to 26.5 GHz
bypassed
typ. +22 dB
typ. +12 dB
typ. +30 dB
Filter option without filter: DC to 26.5 GHz stages 2 to 6 (11): for frequency
ranges, see filter type
bypassed
attenuation depending on filter
Interfaces
RF inputs (X1 to X6) SMA female (26.5 GHz) 0 V DC
RF level depending on options installed
RF output SMA female (26.5 GHz)
External control input MIL female RJ-45 female
(for future expansions)
10 pin
Azimuth rotator MIL female 8 pin
Elevation/polarization rotator MIL female 6 pin
AC input circular connector 4 pin
DC input circular connector 7 pin
DC outputs (1 and 2) mini circular connector 5 pin
General data
Permissible temperature range -40°C to +55°C
(without direct sun exposure)
Storage temperature range -40°C to +70°C
Protection class   IP 65
Relative humidity   95% cyclic test, +25°C/+55°C
Vibration sinusoidal
random
5 Hz to 150 Hz
10 Hz to 500 Hz
Shock shock spectrum 40 g
MTBF   21500 h
Power supply   100 V to 240 V, 50 Hz to 60 Hz,
10 V to 30 V DC
  power consumption, depending on options installed
power consumption, with both rotators in operation
typ. 25 W to 40 W/25 VA to 40 VA
typ. 100 W/100 VA
Dimensions
(W x H x D)
  404 mm x 313 mm x 183 mm
(19.91 in x 12.32 in x 7.21 in)
Weight without options
with all options/fully configured
typ. 11.4 kg (25.13 lb)
typ. 14.6 kg (32.19 lb)
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