Hybrid CombinersPRO-PHY450-2

2-Channel Hybrid Ring Combiner for 450 MHz Transmitters

Description

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

Specifications

Electrical
Filter Type Hybrid Junction
Frequency 380 - 480 MHz (see ordering)
Max. Input Power 30 W per channel (max. 100 W with larger load)
Insertion Loss < 3.4 dB @ 10 MHz BW
< 3.7 dB @ 20 MHz BW
Impedance 50 Ω
Isolation Tx1 - Tx2 > 35 dB @ 10 MHz BW
> 30 dB @ 20 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 2
Mechanical
Connection(s) N(f) (other on request)
Dimensions 210 x 85 (incl. conn.) x 42 mm (excl. load)
/ 8.30 x 3.35 x 1.65 in.
Weight Approx. 0.7 kg / 1.54 lb. (excl. load)
Environmental
Operating temperature range -30 °C to +60 °C

Ordering Designations

Model Product No. Frequency
PRO-PHY450-2-TETRA 210001126 380 - 400 MHz
PRO-PHY450-2-1 210000580 400 - 420 MHz
PRO-PHY450-2-2 210000546 415 - 435 MHz
PRO-PHY450-2-3 210000579 430 - 450 MHz
PRO-PHY450-2-4 210000542 445 - 465 MHz
PRO-PHY450-2-5 210000570 460 - 480 MHz
PRO-PHY450-2-6 210003039 450 - 470 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 loads should be < 1.1! The load should be able to dissipate 1/2 of the total input power. E.g.: With 50 W input in total for the two channels, the load should be able to dissipate 50 W x 1/2 = 25 W.

Mounting Details

PRO PHY85 2 hulplacering

All dimensions are given in mm [in.]

Typical response curve

pro phy450 2 450 2 TETRA ins GB