PRO-PHY85-2

2-Channel Hybrid Ring Combiner for 85 MHz Transmitters

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PRO-PHY85-2

Quickly identify the correct ordering code.

PRO-PHY85-2
Electrical
Model PRO-PHY85-2-…
Filter Type Hybrid Junction
Frequency 68 – 88 MHz (see ordering)
Max. Input Power 30 W per channel (max. 100 W with larger load)
Insertion Loss < 3.4 dB @ 2 MHz BW
< 3.7 dB @ 4 MHz BW
Impedance 50 Ω
Isolation Tx1 – Tx2 > 35 dB @ 2 MHz BW
> 30 dB @ 4 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
Environmental
Operating temperature range -30 °C to +60 °C
Mechanical
Connection(s) N-female (other on request)
Historic Brand Procom
Dimensions 210 x 85 (incl. conn.) x 42 mm (excl. load)
Weight Approx. 0.7 kg / 1.54 lb. (excl. load)
  • 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 loads as option).

TYPICAL RESPONSE CURVE

HOLE PLACING

Model Product No. Frequency Add To Quote

PRO-PHY85-2-1

 210000539 68 – 72 MHz

PRO-PHY85-2-2

 210000653 71 – 75 MHz

PRO-PHY85-2-3

 210000550 74 – 78 MHz

PRO-PHY85-2-4

 210000589 77 – 81 MHz

PRO-PHY85-2-5

 210000588 80 – 84 MHz

PRO-PHY85-2-6

 210000541 83 – 87 MHz

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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 1/2 of the 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.