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MultiplexersTRI 70/900/1800/UMTS/FM-SMA

Triplexer for TETRA (380-470 MHz), GSM (870-2300 MHz) and Car Radio (0-108 MHz)

Description

Triplexer for simultaneous operation of TETRA, GSM mobile telephone and car radio on a common mobile telephone antenna.
Excellent coverage of the two bands 380 – 470 MHz and 870 – 2300 MHz.
Small dimensions.
Two mounting options available:
- Dual-adhesive pad for quick installation.
- Mounting brackets with ø3.2 mm holes for screw mounting.

Electrical

Model

TRI 70/900/1800/UMTS/FM-SMA

Frequency

TETRA : 380 - 470 MHz (UHF)
Mobile telephone : 870 - 2300 MHz (GSM)
Car radio : 0 - 108 MHz (FM)

Max. Input Power

35 W mobile telephone and TETRA

Insertion Loss

0 - 108 MHz : = 2.0 dB
380 - 470 MHz : = 1.0 dB
870 - 2300 MHz : = 0.7 dB

Impedance

Transceiver : 50Ω
Car radio : 75Ω

Isolation

UHF to GSM = 40 dB
UHF to FM = 35 dB
GSM to FM = 40 dB

Mechanical

Connection(s)

SMA

Dimensions

50 x 21 x 60 mm /
1.97 x 0.83 x 1.97 in.

Weight

Approx. 0.068 kg / 0.15 lb.

Environmental

Operating temperature range

-30 °C to +70 °C

Model	Product No.	Description
TRI 70/900/1800/UMTS/FM-SMA	200002134	Dual-adhesive pad
TRI 70/900/1800/UMTS/FM-SMA-M	200002331	Mounting brackets

TRI 70/900/1800/UMTS/FM-SMA

tri 709001800umtsfm sma hole placeing 1

TRI 70/900/1800/UMTS/FM-SMA-M

tri 709001800umtsfm sma m hole placeing2

All dimensions are given in mm [in.]

The 50 Ω cable between antenna and diplexer should be kept as short as possible (preferably not more than 1 m).
Some communication antennas have insufficient height to ensure satisfactory broadcast reception. Only antenna whips with a height of at least 25 cm are acceptable.
Tuning: The antenna is tuned for best VSWR at the operating frequency as usual. The filter is factory-tuned and ready for installation.

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