Cavity Bandpass VHF (5-Inch)

136-175 MHz, 5-inch cavity bandpass, 0.6-2 dB IL tunable, 300 W, 2.35 kg.

Frequency

136–175 MHz
Power

3 W
Insertion loss

< 0.6 dB
Connector

N-Female
Weight

2.4 kg

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Specifications

Electrical

Frequency range	136–175 MHz
Power handling	3 W
Insertion loss	<0.6 dB
VSWR (max)	1.5
Impedance	5 Ω

Mechanical

RF connectors	N-Female
Weight	2.4 kg
Dimensions (H × W × D)	600 × 127 × 127 mm

Configuration

Cavity Count	1
Cavity Topology	Bandpass
Cavity Diameter Inch	5
Frequency Stability	0.8 ppm/C
Temperature Range	-30C to +60C
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

Compact 5-inch cavity, 2.35 kg total
02

300 W at 0.5 dB IL
03

0.8 ppm/C frequency stability

Technical brief

## Construction
Compact 5-inch high-Q cavity tuned for VHF bandpass. Light enough for tight installations, capable enough for 300 W continuous duty at 0.5 dB insertion loss.
## Where this fits
VHF voice repeater receive paths, marine band, industrial, and where 5-inch form factor matters more than the extra Q-factor of larger cavities.