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PHY-TETRA-2-FME-...

Compact CombinersPHY-TETRA-2-FME-...

TETRA combiner with VSWR adaption/adjustment network

Description

  • Combiner for coupling of two TETRA mobile transceivers on one common antenna.
  • Factory-adjusted to either 380 - 410 MHz or 400 - 430 MHz.
  • Compact dimensions – especially suitable for mobile applications.
  • FME-connectors for direct connection of FME-cable without extra adapter.
  • For parallel operation of two two-way communication radios (transceivers) where highest possible decoupling (isolation) is necessary.
  • Integrated VSWR adjustment network for optimization of isolation in the frequency range of 380 - 410 MHz or 400 - 430 MHz. Via the adjustment network the effective VSWR of the antenna can be optimized and consequently the isolation between the ports of the combiner clearly improved.
  • Isolation obtainable with normal antenna VSWR 1.5:1 to 2.0:1 on the Antenna port is 25 - 30 dB isolation between the TRX ports.
    If a perfect 50 Ohm match on the Ant. port  = VSWR 1.0:1 is achieved, a higher isolation of > 50 dB can be obtained.
  • The adjustment of the VSWR adjustment network takes place via built-in variable capacitors.
  • Max. TETRA transmitter power 2 x 10 W.
  • Also usable as equal power divider for max. 20 W.
  • Very small ripple over the total frequency range.

Specifications

Electrical
Model PHY-TETRA-2-FME-...
Frequency 380 - 410 MHz or 400 - 430 MHz
Max. Input Power 20 W (when used as power divider) 10 W (when used as power combiner)
Impedance 50 Ω
Nominal Divider Loss 3 dB
VSWR < 1.3:1
No. of channels 2
Mechanical
Connection(s) FME-connectors
Dimensions 50.5 x 66 (including bottom plate and connectors) x 19.5 mm / 1.99 x 2.59 (including bottom plate and connectors) x 0.77 in.
Weight Approx. 0.08 kg / 0.18 lb.
Mounting 4 mm dia. (4 holes)
Environmental
Operating temperature range -30 °C to +60 °C

Diagram and Mounting

TYPICAL RESPONSE CURVE SWR 1

TYPICAL RESPONSE CURVE ANTENNA MU 1-Z/s (with 1.5 m cable)

TYPICAL RESPONSE CURVE ANTENNA MU 3-BZ/TETRA/l (with 1.5 m cable)

MOUNTING DETAILS

Ordering Designations

Model Product No.
PHY-TETRA-2-FME-380-410 210001836
PHY-TETRA-2-FME-400-430 210001837

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