Description

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The 4-channel auto-tuned combiner ARF9154-xx is used in TDMA TETRA/GSM station. It consists of very narrow band high Q cavity resonator filters tuned by mean stepper motors controlled by a frequency synthesizer.
The combiner is tuned through IP/Ethernet interface and locally using a USB interface.
An easy way for BS extension is to connect a combiner to another combiner in star node, increasing the BS capacity up to 16 channels.
The output can be connected to an optional pass-reject or duplexer filter for 2-way operation.
The combiner features low loss and low intermodulation and incorporates a monitoring card.


Frequency range : 834-960 MHz
Operating bands : 834-870 / 870-925 / 870-960 MHz
Channels : up to 16 (Modular 4-channel rack) (*)
Channel spacing : > 300 KHz
Technology : Star coupling cavity resonators
Frequency drift : none - Automatic feedback compensation
Insertion loss : 3.3 dB
Impedance : 50 Ohms
Input VSWR : < 1.2
Ouput VSWR : < 1.3
Attenuation : > 37 dB at 20 MHz
Input to input isolation : > 59 dB
Output to input isolation : > 48 dB
Intermodulation : < -133 dBm (**)
Harmonics attenuation : > 84 dBc
Tuned input power range : 27 to 50 dBm
Maximum power handling : 100 W per channel
Monitoring feature : Input RF power, Output RF power,
Output return loss, Tuning failure,
Power consumption
Outage backup manual tuning
Local backup tuning with mean of thumbwheel
Assembly : 6 U rack / 19 inches enclosure
Connectors : N female for RF inputs,
7/16 DIN female for RF output
SUB-D 9 contacts RS232 interface (local mode)
USB-B interface (local mode)
RJ45 IP/ETHERNET interface (remote mode)
Supply Voltage : +24 +/- 15% V DC,
Consumption : < 42 VA (idle & tuning mode)
Lightening protection : 30 KA
EMC Class : ETSI EN 301489-1/ 301489-5
Operating temperature range : -25 to +55°C
Ingress protection : IP54
Color : Beige
Height : 239 mm / 5U
Width : 483 mm /19 inches
Depth : 362 - 389 mm
Weight : 26.6 Kg

(*) Used with MonAGER v1.5 control software
for Windows 32 /64-bit operating system
(**) IM level measured at the output for 50W 200 KHz spaced 2-tone carriers
at the input

Typical Characteristics

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Mechanicals / Packaging

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