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ALUNOR RF

VHF Preselector — 145-175 MHz

145-175 MHz, min 2 MHz BW, 1.6 dB typical IL (1.3 dB tuned), 1.5:1 VSWR. 0.52 kg.

  • Frequency
    145–175 MHz
  • Insertion loss
    < 1.6 dB
  • Connector
    N-Female
  • Weight
    0.5 kg
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Specifications

Electrical
Frequency range 145–175 MHz
Insertion loss <1.6 dB
VSWR (max) 1.5
Impedance 5 Ω
Mechanical
RF connectors N-Female
Weight 0.5 kg
Dimensions (H × W × D) 34 × 166 × 103 mm
Configuration
Bandwidth Min Mhz 2
Il Typ Db 1.3
Il Max Db 1.6
Temperature Range -30°C to +60°C
Verified 2026-05-06 · ALUNOR RF Engineering · source: ALUNOR RF Technical Catalogue 2026-01-21

All measurements at 25 °C, 50 Ω, unless otherwise noted.

Why this product

  • 01

    VHF 145-175 MHz coverage

  • 02

    ≥ 2 MHz tunable bandwidth

  • 03

    Compact 0.52 kg enclosure for tight installations

Technical brief

VHF preselector

VHF counterpart to the UHF preselectors. 2 MHz minimum tunable bandwidth — the slightly tighter window reflects VHF channel spacing norms.

Need a custom configuration?

Talk to an application engineer about variants, custom tuning, or integration into an existing repeater chassis.