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PRO-COM450-4SI

Compact 4-Channel UHF/LTE 450 MHz Tx/Rx Combiner
Description
  • An integrated single tray combining solution housing a 4-channel hybrid Tx hybrid combiner, duplex filter, active Rx multicouplers and preselector.
  • Built-in power supply suitable for 12 VDC
  • Minimal rack space required – only 3 HU in a 19″ rack.
  • Compatible with digital 6.25 kHz channel spacing.
  • Single Tx isolators fitted as standard (With Dual Isolators, please ask for availability).
  • 4 Tx & 4 Rx ports as standard.
  • Please specify Tx/Rx frequencies when ordering.
  • As standard the combiner will come with black painted front plate. If requested,
    please ask for a front plate with alu-look.
Specification
Electrical
Model PRO-COM450-4SI
Frequency L : 380 – 400 MHz
H : 406 – 470 MHz
Max. Input Power 50 W
Spacing Tx-Rx ≥ 5 MHz
Spacing Tx-Tx ≤ 2 MHz
Insertion Loss Tx Path 8.4 dB
Impedance 50 Ω
Ant-Tx Isolation > 40 dB @ 25 °C
Isolation Tx-Tx > 70 dB @ 25 °C
Isolation Tx – Rx Tx – Tx spacing < 0.5 MHz : > 85 dB
Tx – Tx spacing > 0.5 MHz : > 65 dB
Isolation Rx-Rx > 20 dB
VSWR < 1.5:1
LNA Noise Figure < 3.5 dB
Current Consumption 500 mA @ 12 V DC
Gain Rx 1 dB ±1 dB (factory set)
No. of channels 4
Environmental
Storage temperature range -30 °C to +60 °C
Mechanical
Connection(s) N(f)
Historic Brand Amphenol Procom
Dimensions 19″ x 3 HU
(482.6 x 132.55 mm) /
19 x 5.22 in.
– see Mechanical Outline for depth of tray
Weight Approx. 9.2 kg / 20.28 lb.
Ordering Codes
Model Product No.
Compact 4-Channel UHF/LTE 450 MHz Tx/Rx Combiner PRO-COM450-4
Additional Information
Ordering Designations

Contact for system-specific product No.

Use the guide below to make the name of the PRO-COM450-4SI. Remember to buy the Power Adaptor separately if needed.

Model
Duplex Filter Freq. Band
Pre-selector Rx Freq. Band
Duplex filter Bandwidth (BW) and Tx/Rx Spacing
Max. Input Power
PRO-COM450-4SI
Low: 340 – 400 MHz = L
High: 406 – 470 MHz = H
380 – 440 MHz = L
430 – 470 MHz = H
2-5/7-2 *
2-7/9-2
2-9/13-2
2-13/16-2
2-15/27-2


*Max. Low BW: 2 MHz- Tx/Rx spacing: 5 to 7 MHz –
Max. High BW: 2 MHz = 2-5/7-2
50 W per channel
Naming Example
PRO-COM450-4SI
H
H
/2-5/7-2
/50W


Naming Example: PRO-COM450-4SI HH/2-5/7-2/50W

Accessories
ModelProduct No.
Power Supply AC/DC 12V/1A EU/UK/US 240000060
Power Supply AC/DC 12V/1A EU/UK/US

Power Supply ACDC 12V1A EUUKUS

Mechanical Outline

PRO COM450 4 HH 2 9 13 2 50W Mechanical outline

All dimensions are given in mm [in.].

EU and UK Declaration of Conformity

Hereby Amphenol Procom declare that the product type PRO-COM450-4SI is in compliance with EU Directive 2014/53/EU and
the UK Radio Equipment Regulations 2017 (S.I. 2017 No. 1206).
The full text of the Declaration of Conformity is available at:

https://s3.us-west-2.amazonaws.com/catsy.1080/Declaration-of-Conformity-PRO-COM450.pdf

PROCOM A/S reserves the right to amend specifications without prior notice
PROCOM A/S • Smedetoften 12 DK 3600 Frederikssund • Denmark
Generated : 2026-06-26 Version 1