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ALUNOR RF

Cavity VHF Bandpass — 6-Inch

136-175 MHz, single 6-inch cavity, 0.5 dB IL @ 350 W or 2.0 dB IL @ 125 W (tunable).

  • Frequency
    136–175 MHz
  • Power
    35 W
  • Insertion loss
    < 0.5 dB
  • Connector
    N-Female
  • Weight
    3.5 kg
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Specifications

Electrical
Frequency range 136–175 MHz
Power handling 35 W
Insertion loss <0.5 dB
VSWR (max) 1.5
Impedance 5 Ω
Mechanical
RF connectors N-Female
Weight 3.5 kg
Dimensions (H × W × D) 600 × 482 × 152 mm
Configuration
Cavity Count 1
Cavity Diameter Inch 6
Il Alt 2.0 dB @ 125 W tighter BW
Frequency Stability 0.8 ppm/°C
Temperature Range -30°C to +60°C
Mounting 19-inch rack
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

    Single 6-inch cavity, 0.5 dB or 2.0 dB IL tunable trade-off

  • 02

    0.8 ppm/°C frequency stability

  • 03

    350 W (low-IL) or 125 W (tight-BW) operation

Technical brief

Single-cavity VHF bandpass

Tunable insertion-loss / power trade: 0.5 dB IL at 350 W power-handling, or 2.0 dB IL at 125 W with tighter bandwidth. 6-inch cavity diameter — the workhorse Q for VHF service.

Frequency stability

0.8 ppm/°C — across the operating temperature range, frequency drift stays well below typical channel spacing.

Need a custom configuration?

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