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Description
Atlantic Radio Duplexer Series (VHF/UHF 50W 6-Cavity) for RepeatersProfessional 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 136180 MHz VHF band) and the AR DU PUHF (covering
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
- Atlantic Radio Duplexer Series Engineering: Minimizes infrastructure deployment overhead by merging cross-frequency paths onto one antenna system.
- High-Isolation 6-Cavity Build: Delivers superior signal suppression (greater than 75dB) to isolate active transmissions from weak incoming signals.
- Complementary Professional Tuning: Custom-calibrated by bench radio experts to your requested operating frequencies before shipping out.
- Robust 50-Watt Power Load: Confidently manages steady continuous duty cycles for standard commercial mobile and localized repeater units.
- 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
| VHF Repeaters | UHF Repeaters |
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.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 5
Best socks!
Size: Medium, Color: Blue
I love these socks! They last for years and they fit so nicely on my feet. I love that I can wear the in tennis shoes or wool boots and they never move!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 21, 2025
★★★★★ 1
TOO SMALL
Size: Medium, Color: Blue
Nice socks, but they are way too small. Says they fit size 6 - 10. I kept 3 ( I wear size 8) and gave 3 to my daughter (size 8.5). We both agreed that they were just too small.
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Reviewed in the United States on May 12, 2026
★★★★★ 5
Style and comfort
Size: Medium, Color: Black
Exactly what I was looking for. Style and sock thickness and comfort.
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Reviewed in the United States on December 14, 2025
★★★★★ 5
Comfortable
Size: Medium, Color: Blue
So comfortable! They stay up perfectly love love love
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Reviewed in the United States on December 7, 2025
★★★★★ 5
Excellent all-poly athletic socks for general lifting and HIIT.
Size: Medium, Color: Black/White/Grey
***These are NOT “low” -cut socks as the description in the title states. These are actually “quarter”-cut socks as clearly visible in the picture of the sock itself. “Low” -cut socks are shorter than this height but still visible with a shoe. Also, on the actual UA package of these socks, it clearly states these are QUARTER cut socks.
My review: Gave these UA Performance Tech socks (UAPT) 5 stars since they’re very good but in all reality not the best socks I’ve ever had for lifting and HIIT workouts. That title goes to Nike Dri-Fit MAX socks (DFM)….but these socks are really good. Like Nike’s DFM’s, these UAPT socks come in sizes, halleluah (M, L, and XL). The idea that most athletic sock are sized 6-12 and should therefore fit everyone perfectly is absolutely ridiculous. Your shoes come in whole and half sizes…so socks should at the very least be sized like these UAPT’s and Nike DFM’s…in S/M/L or in this case, M/L/XL. I wear a men’s size 8 shoe and the M (medium) size in these socks was a perfect fit; true to size.
Also, UAPT socks are ALL polyester with Spandex which is ideal and 100% that which you want for athletic socks: wicking with stretch. Cotton socks are the absolute worst thing you could wear to the gym since they’re sponges for sweat and therefore get wet and heavy, cause blisters, tend to stink, stick to skin, etc… IF you prefer cotton socks for athletics, then you don’t understand how performance fabrics work in athletics and training. You do NOT want cotton in your athletic apparel. You want your fabrics that wick sweat away; NOT soak up sweat and hold onto it. Also, the flexibility and stretch of the foot and ankle parts of the sock were both just right. Snug but not too tight. Wicking is perfect, too. Already worn during two 3 1/2 hour workouts and my feet stayed as dry as a desert.
When looking for UA athletic socks on Amazon, I surprisingly continued to find UA “athletic” socks made with mostly cotton which completely surprised me because a serious athletic company should produce an abundance of performance-level socks… i.e. all-poly socks. Thank goodness I finally came across these UA all-poly Performance Techs. The only drawback to these UAPT’s…and it’s a minor drawback…is that unlike Nike DFM’s, these do not come in L & R (left and rights) to specifically match the individual foot shape. Nike DFM socks come in L and R which sets them apart from all other athletic socks…and yet I don’t like supporting a massive monopolistic athletic apparel company like Nike, but they’re the only one that makes THE best athletic sock.
Nonetheless, these UAPT’s are perfect workout/HIIT/lifting socks for the bundle value price of six pair and three colors. If you’re looking to match your new UA or Rock shoes with the appropriate UA athletic sock, then here you go. I chose the black/white/gray mix bundle since I have new pairs of a black and a white version of the same UA-Rock shoe. These UAPT socks are medium thickness so they didn’t take up an exorbitant amount of room in my shoes but they’re thick enough to prevent blisters and provide cushion. Overall they’re very comfortable, hold a good stretch, hold their shape, and seem to be durable but only time will tell.
And since we’re on the black and white sock subject, I couldn’t resist: I read a shoe review about someone angered that his new UA/Rock black shoes (obviously bought for casual wear in lieu of gym use) staining his white cotton socks. First of all, never ever wear white socks (much less cotton white socks) with black athletic shoes! The possibility of staining is always there and the appearance just doesn’t work. However, you can get away with black socks with white shoes in some cases…but never white socks with black shoes. Why? Who knows? It’s just one of those unwritten rules of the gym. And no, I didn’t make the rules…so don’t blame the messenger. LOL!
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Reviewed in the United States on July 28, 2025