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LH 108/136 AMP

Diplexer for Mobile Telephone (136 - 1300 MHz) and Car Radio (0 - 108 MHz) with built-in low noise amplifier
Description
  • Diplexer for simultaneous operation of mobile telephone and car radio on a common mobile radio antenna.
  • A single diplexer covers all communication bands 136 – 1300 MHz.
  • Built-in low-noise SMD-equipped amplifier in the car radio section gives freedom of choice of mobile telephone antenna.
  • Better reception of car radio signals due to the built-in low-noise amplifier.
  • Power supply of the low-noise amplifier via the car radio cable or by direct wiring.
  • Extremely compact.
  • Quick installation using dual-adhesive pad provided.
  • FME-connections on antenna and mobile telephone terminals
  • CRC connection (M10 x 0.75) on the car radio terminal.
  • Power supply 12 V to the low-noise amplifier via CRC-connection.
  • Procom 75 Ohm car radio cable available as an option.
Specification
Electrical
Power Supply +12 V from the car via CRC-connection or directly
Model LH 108/136 AMP
Frequency Mobile telephone : 136 – 1300 MHz
Car radio : 0 – 108 MHz
Max. Input Power 35 W
Amp. Gain 0 – 108 MHz : 6 dB
Insertion Loss 136 – 1300 MHz : 0.8 dB
Impedance COM : 50 Ω, VSWR < 1.5:1
Radio : 75 Ω
Current Consumption ~ 25 mA
Environmental
Operating temperature range -30 °C to +70 °C
Mechanical
Connection(s) Antenna : FME
COM : FME
Radio : CRC-Connector (M10 x 0.75)
Historic Brand Amphenol Procom
Dimensions 50 x 21 x 60 mm / 1.97 x 0.83 x 1.97 in.
Weight Approx. 0.073 kg / 0.16 lb.
Accessories Car radio cable
Type 1 m CRC (length 1 m)
Type 5 m CRC (length 5 m)
Ordering Codes
Model Product No.
Diplexer for Mobile Telephone (136 – 1300 MHz) and Car Radio (0 – 108 MHz) with built-in low noise amplifier 200000768
Additional Information
Typical Response Curve
Connection diagram

Installation note
  1. The 50 Ω cable between antenna and diplexer should be kept as short as possible (preferably not over 1 m).
  2. Some communication antennas have insufficient height to ensure satisfactory broadcast reception. Only antenna whips with a height of at least 25 cm are acceptable.
  3. Tuning: The antenna is tuned for best VSWR at the operating frequency as usual. The filter is factory-tuned and ready for installation. The car radio is tuned for optimum reception on the MW-band by means of the antenna tuning screw (if present).
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