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PRO-PHY150-3

Hybrid CombinersPRO-PHY150-3

3-Channel Hybrid Combiner for 150 MHz Transmitters

Description

  • Combining three transmitters or receivers on the same antenna.
  • Better utilization of good antenna position.
  • Three antennas on the same transmitter or receiver.
  • The only combining option with very small Tx-Tx frequency spacing.
  • 30 W load supplied (other loads or no load as option).

Specifications

Electrical
Model PRO-PHY150-3
Filter Type Hybrid Junction
Frequency 136 - 175 MHz (see ordering)
Max. Input Power 45 W per channel (max. 150 W with larger load)
Insertion Loss < 5.2 dB ± 0.3 dB @ 8 MHz BW
< 5.4 dB ± 0.3 dB @ 16 MHz BW
Impedance 50 Ω
Isolation Tx1 - Tx2 > 26 dB @ 8 MHz BW
> 24 dB @ 16 MHz BW
(* see note)
VSWR < 1.5:1 with all other ports terminated with 50 Ω
Load 30 W load fitted (other ratings available)
(** see note)
No. of channels 3
Mechanical
Connection(s) N(f) (other on request)
Dimensions 400 x 89 (incl. conn.) x 42 mm (excl. loads)
/ 15.75 x 3.50 x 1.65 in.
Weight Approx. 1.3 kg / 2.87 lb. (excl. load)
Environmental
Operating temperature range -30 °C to +60 °C

Diagram and Mounting

TYPICAL RESPONCE CURVE

Ordering Designations

Model Product No. Frequency
PRO-PHY150-3-1 210001225 130 - 142 MHz
PRO-PHY150-3-2 210000639 138 - 150 MHz
PRO-PHY150-3-3 210000611 146 - 158 MHz
PRO-PHY150-3-4 210000547 154 - 166 MHz
PRO-PHY150-3-5 210000583 162 - 174 MHz
PRO-PHY150-3-6 210000793 170 - 182 MHz

Note

* The isolation between the Tx ports is directly dependent on the terminating VSWR on the antenna port. With an antenna load VSWR = 1.5, the isolation between the two Tx ports will be reduced to 20 dB @ 5 MHz bandwidth.

** The VSWR of the load’s should be < 1.1! Each load should be able to dissipate 2/3 of the input power. E.g.: With 50 W input, each load should be able to dissipate 50 W x 2/3 = 33 W.

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