Dual Isolator UHF 380-470 MHz

380-470 MHz, 150 W max power, >75 dB typical isolation, <1.0 dB insertion loss.

Frequency

380-470 MHz
Power

15 W
Isolation

> 75 dB
Insertion loss

< 1 dB
Connector

N(f)
Weight

1.3 kg

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Specifications

Electrical

Frequency range	380-470 MHz
Max. Input Power	15 W
Insertion loss	<1 dB
Tx-Rx isolation	>75 dB
VSWR (max)	1.5
Impedance	5 Ω

Mechanical

RF connectors	N(f)
Weight	1.3 kg
Dimensions	51 × 114 × 160 mm

Configuration

Power	150 W
Insertion Loss	<1.0 dB
Isolation	>75 dB (Typ @ +25°C)
VSWR	<=1.5:1

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

Dual-stage ferrite — > 75 dB typical isolation at +25 °C
02

150 W continuous duty, < 1.0 dB insertion loss
03

Documented temperature-dependent isolation curve

Technical brief

Two-stage ferrite isolator

Dual-stage construction stacks isolation: > 75 dB typical at +25 °C, with documented degradation outside the room-temperature window:
- 0 °C to +60 °C: > 40 dB
- -10 °C to 0 °C: > 35 dB

Protects transmitter PA stages from reflected power; prevents transmitter-to-transmitter intermod at multi-carrier sites.

Solves these problems

Protecting transmitter PA stages from reflected power and inter-system intermod

A failed antenna, a wet feedline connector, or a strong nearby transmitter can drive reflected power back into the PA — and at multi-carrier sites, two transmitters mixing in a non-linear element generate intermod products that fall back into your receiver band.