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PRO-PHY450-3

3-Channel Hybrid Combiner for 450 MHz Transmitters

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

ORDERING DESIGNATIONS

TYPE PRODUCT NO. FREQ. RANGE
PRO-PHY450-3-1 210000540 395 - 410 MHz
PRO-PHY450-3-2 210000595 405 - 420 MHz
PRO-PHY450-3-3 210000557 415 - 430 MHz
PRO-PHY450-3-4 210000654 425 - 440 MHz
PRO-PHY450-3-5 210000733 435 - 450 MHz
PRO-PHY450-3-6 210000621 445 - 460 MHz
PRO-PHY450-3-7 210000575 455 - 470 MHz
PRO-PHY450-3-8 210000576 465 - 480 MHz

SPECIFICATIONS

ELECTRICAL
FILTER TYPE Hybrid Junction
FREQUENCY 380 - 475 MHz (see table)
MAX. INPUT POWER 75 W per channel
(max. 150 W with larger load)
INSERTION LOSS < 5.3 dB ± 0.3 dB @ 11 MHz BW
< 5.5 dB ± 0.3 dB @ 22 MHz BW
ISOLATION TX 1-TX 2
(*see note)
> 26 dB @ 11 MHz BW
> 25 dB @ 22 MHz BW
IMPEDANCE Nom. 50 Ω
LOAD 30 W load fitted (other ratings available)
SWR < 1.5 with all other ports terminated
with 50 Ω
MECHANICAL
TEMP. RANGE –30° C → +60° C
CONNECTORS N-female (other types as option)
DIMENSIONS (L x W x H) 400 x 89 (incl. conn.) x 42 mm (excl. load)
WEIGHT Approx. 1300 g (excl. load)

 

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

**The SWR 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.

 

TYPICAL RESPONCE CURVE

 

 

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