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PRO-PHY85-3

3-Channel Hybrid Combiner for 85 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).

Specification

Electrical
Model	PRO-PHY85-3
Filter Type	Hybrid Junction
Frequency	68 – 88 MHz (see ordering)
Max. Input Power	45 W per channel (max. 150 W with larger load)
Insertion Loss	< 5.2 dB ±0.3 dB @ 2 MHz BW < 5.4 dB ±0.3 dB @ 4 MHz BW
Impedance	50 Ω
Isolation Tx1 – Tx2	> 26 dB @ 2 MHz BW > 25 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	3

Environmental
Operating temperature range	-30 °C to +60 °C

Mechanical
Connection(s)	N(f) (other on request)
Historic Brand	Procom
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)

Ordering Codes

Model	Product No.	Frequency
PRO-PHY85-3-1	210000785	67 – 71 MHz
PRO-PHY85-3-2	210000736	70 – 74 MHz
PRO-PHY85-3-3	210000549	73 – 77 MHz
PRO-PHY85-3-4	210000703	76 – 80 MHz
PRO-PHY85-3-5	210000737	79 – 83 MHz
PRO-PHY85-3-6	210000693	82 – 86 MHz
PRO-PHY85-3-7	210000694	85 – 89 MHz

Additional Information

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.

Diagrams

RESPONSE CURVE

PROCOM A/S reserves the right to amend specifications without prior notice

PROCOM A/S • Smedetoften 12 DK 3600 Frederikssund • Denmark

Generated : 2026-06-27 Version 1