The STELLAR RF Mobile Antenna Duplexer is designed to allow two frequency paths to operate through a shared antenna system while maintaining separation between the bands. Built for mobile and automotive radio applications, it provides a compact and reliable solution for commercial communications, amateur radio, and other vehicle-based RF systems. Its durable construction and efficient RF performance make it well suited for installations where space, reliability, and clean signal routing are important.
High-Performance Mobile RF Duplexer
Key Features
Six-cavity resonator construction
Low insertion loss for efficient RF transmission
High transmit-to-receive isolation
Temperature-compensated design for stable operation
50-ohm professional RF system compatibility
N-Type or BNC connector configurations
Compact, durable construction for professional radio installations
Suitable for shared-antenna transmit and receive systems
Frequency Range:
SRT-DP150: 130–176 MHz
SRT-DP230: 220–240 MHz
SRT-DP350: 330–390 MHz
SRT-DP450: 380–512 MHz
Operating Bandwidth:
SRT-DP150: ±200 kHz
SRT-DP230: ±500 kHz
SRT-DP350: ±700 kHz
SRT-DP450: ±400 kHz
Power Handling:
SRT-DP150 / SRT-DP230: 30 W
SRT-DP350 / SRT-DP450: 30 W / 50 W
Frequency Separation Range:
VHF: 3.5–13 MHz
UHF: 4–20 MHz
Transmit / Receive Frequency Separation:
SRT-DP150: ±0.6 MHz
SRT-DP230: ±1.6 MHz
SRT-DP350: ±5 MHz
SRT-DP450: ±5 MHz
Available Models:
SRT-DP150 / SRT-DP230 / SRT-DP350 / SRT-DP450
Connector Options: N-Type or BNC
Dimensions: 214 × 154 × 31.5 mm
Weight:
SRT-DP150: 1.2 kg
SRT-DP230: 0.9 kg
SRT-DP350 / SRT-DP450: 1.2 kg / 2.0 kg
Insertion Loss: <1.0 dB
Isolation:
SRT-DP150: >7.5 dB
SRT-DP230 / SRT-DP350 / SRT-DP450: >75 dB
Rejection: >7.5 dB
VSWR: <1.5:1