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PRO-COM150-SRC-2

2-Channel VHF Simplex Relay Combiner
Description
  • The PRO-COM150-SRC-2 is an integrated single-tray solution to combine two simplex radios to one antenna.
  • When transmitting on one channel, the other channel is switched to a load to make sure that the system is secured against a simultaneous transmission on two channels.
  • Minimal rack space required – only 1HU.
  • Please specify Tx / Rx frequencies when ordering.
  • The PRO-COM150-SRC-2 is a 2-channel VHF simplex combiner with active relays for controlling the switching between Tx and Rx.
  • The simplex combiner gives the possibility to combine two simplex radios to one antenna. In the Rx path a bandpass filter, an isolator and LNA is included.
  • The simplex combiner safeguards that both radio transmitters do not have access to the antenna at the same time, but the two radios are still able to listen on the Rx channel simultaneously.
  • The first radio that enables the transmitter will be able to transmit while the output of the other transmitter will switch to an internal load. When the first radio that enabled the transmitter stops transmitting, the other transmitter is switched to the antenna and allowed to transmit.
  • If no radio is transmitting, the system is in listening mode and both radios are able to receive the signal from the antenna.
Specification
Electrical
Model PRO-COM150-SRC-2
Frequency 144 – 174 MHz
Min. Input power 3 W (per channel)
Max. Input Power 50 W (per channel)
Switch Time Tx – Rx < 5 ms
Insertion Loss Tx-Ant. < 0.7 dB
Impedance 50 Ω
Isolation Tx-Tx 60 dB
Isolation Tx – Rx 60 dB
VSWR In Tx mode ≤ 1.5
In Rx mode ≤ 2.0
Bandwidth 4 MHz
LNA Noise Figure < 1.2 dB
Current Consumption 200 mA < 0.7 @ 12 V DC
Gain Rx 4 ±1 dB (factory set)
No. of channels 2
Environmental
Operating temperature range -30 °C to +60 °C
Mechanical
Number Of Switch Operations 10⁷
Connection(s) N(f)
Historic Brand Amphenol Procom
Dimensions 19″ x 1HU x 300 mm
(483 x 44.45 x 300 mm) / 19 x 1.75 x 11.81 in.
Weight Approx. 3.9 kg / 8.6 lb.
Ordering Codes
Model Product No.
2-Channel VHF Simplex Relay Combiner 210002127
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