Description
Professional 6-Cavity Repeater Duplexers with Custom Tuning
Maximize your repeater system efficiency by running transmit and receive paths through a single antenna.
The Atlantic Radio Duplexer Series features high-performance 6-cavity RF filtering networks designed for commercial, industrial, and public safety repeater stations. This specialized series consists of the AR-DUP-VHF (operating across the 136–180 MHz VHF band) and the AR-DU-PUHF (covering the wide 380–520 MHz UHF range). Acting as a critical isolation layout, each duplexer enables a dual-frequency base station or repeater to simultaneously transmit and receive high-power signals utilizing a single coaxial feedline without degrading receiver sensitivity.
This series is built for fleet technicians and wireless infrastructure engineers who need to eliminate co-site interference and receiver desensitization while avoiding the high material costs of installing multiple tower antennas. To guarantee immediate out-of-the-box functionality, professional bench tuning to your specific high and low operating frequencies is included with every purchase. Buyers must provide their exact frequency spacing requirements within the order notes at checkout so our bench technicians can calibrate the cavities for peak isolation and minimum insertion loss.
Key Features & Benefits
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Atlantic Radio Duplexer Series Engineering: Minimizes infrastructure deployment overhead by merging cross-frequency paths onto one antenna system.
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High-Isolation 6-Cavity Build: Delivers superior signal suppression (greater than 75dB) to isolate active transmissions from weak incoming signals.
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Complementary Professional Tuning: Custom-calibrated by bench radio experts to your requested operating frequencies before shipping out.
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Robust 50-Watt Power Load: Confidently manages steady continuous duty cycles for standard commercial mobile and localized repeater units.
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Low Insertion Loss Design: Minimizes total system signal attenuation to under 1.0dB, maintaining an optimal effective radio coverage footprint.
Specifications
| Attribute |
Details |
| Brand |
Atlantic Radio |
| Model/SKU |
ARDUP Series |
| Product Type |
6-Cavity Repeater Duplexer |
| Frequency Options |
VHF: 136–180 MHz / UHF: 380–520 MHz |
| Power Input Max |
50 Watts |
| Isolation |
>75 dB |
| Insertion Loss |
≤1.0 dB |
| V.S.W.R. |
≤1.5 |
| Connector Type |
N-Female |
| Nominal Impedance |
50 Ω |
Model Variations
| Model |
Key Difference |
| ARDUPVHF |
VHF Band (145–170 MHz), 6-Cavity, 50W, N-Female |
| ARDUPUHF |
UHF Band (380–520 MHz), 6-Cavity, 50W, N-Female |
Compatibility
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| VHF Repeaters |
UHF Repeaters |
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What's Included
| Description |
SKU/Model |
Status |
| 6-Cavity Duplexer Assembly |
AR-DUP-VHF / AR-DUP-UHF |
✅ Included |
| Professional Bench Tuning Service |
Custom Calibrated |
✅ Included |
| Coaxial Jumper Cables |
AR-RG400-N-M |
❌ Sold Separately |
| Base Station Repeater Chassis |
— |
❌ Sold Separately |
More Resources
Frequently Asked Questions
Do I need to tune the Atlantic Radio duplexer myself?
No. Professional bench tuning to your exact high and low operating frequencies is included at no extra cost at the time of purchase.
Can I use this duplexer for both VHF and UHF at the same time?
No. You must select either the ARDUPVHF or ARDUPUHF model variation depending entirely on the single physical operational frequency band of your repeater hardware.
What happens if I do not provide my frequencies when ordering?
Your order will be placed on temporary hold. Atlantic Radio requires your exact high and low operating frequencies before shipment to ensure proper cavity calibration.
Warranty
2-year manufacturer's warranty.
