Description
Atlantic Radio Duplexer Series — VHF/UHF 6-Cavity 50W Repeater Duplexer
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 series consists of the ARDUPVHF (136–180 MHz VHF band) and the ARDUPUHF (380–520 MHz UHF band). Acting as a critical isolation network, each duplexer enables a repeater to simultaneously transmit and receive high-power signals over a single coaxial feedline without degrading receiver sensitivity.
Built for fleet technicians and wireless infrastructure engineers who need to eliminate co-site interference and receiver desensitization while avoiding the cost of multiple tower antennas. Duplexers ship untuned. Professional bench tuning to your specific operating frequencies is available as a separate service — add SERV-DUP-TUNE to your order and provide your exact frequency spacing requirements in the order notes at checkout so our bench technicians can calibrate the cavities for peak isolation and minimum insertion loss.
Key Features & Benefits
Single-Antenna Operation: Merges transmit and receive paths onto one antenna feedline, minimizing infrastructure overhead.
High-Isolation 6-Cavity Build: Delivers greater than 75 dB signal suppression to isolate active transmissions from incoming signals.
50-Watt Power Rating: Manages continuous duty cycles for standard commercial mobile and localized repeater installations.
Low Insertion Loss: Under 1.0 dB total signal attenuation to maintain optimal coverage footprint.
Specifications
| Attribute |
Details |
| Brand |
Atlantic Radio |
| Model / SKU |
ARDUPVHF / ARDUPUHF |
| 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 |
Details |
| ARDUPVHF |
VHF Band (136–180 MHz), 6-Cavity, 50W, N-Female |
| ARDUPUHF |
UHF Band (380–520 MHz), 6-Cavity, 50W, N-Female |
Compatibility
| Repeater Type |
Band |
| VHF Repeaters |
VHF (136–180 MHz) |
| UHF Repeaters |
UHF (380–520 MHz) |
What’s Included
More Resources
Frequently Asked Questions
Does the Atlantic Radio duplexer come pre-tuned?
No. Duplexers ship untuned. Professional bench tuning is available as a separate service — add SERV-DUP-TUNE to your order and provide your exact high and low operating frequencies in the order notes so our bench technicians can calibrate the cavities for peak isolation and minimum insertion loss.
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 on the frequency band of your repeater hardware.
What happens if I do not provide my frequencies when ordering tuning?
Your tuning order will be placed on temporary hold. Atlantic Radio requires your exact high and low operating frequencies before performing calibration to ensure proper cavity tuning.
Warranty
1-year manufacturer’s warranty.
