Duplexer can be customized and supports frequency range 400-470 Mhz with TX/RX Space(MHz) 10 MHz.This 6 cavity duplexer will handle up to 30W-50 watts and has N-Female connectors type, it is easy to build your Repeaters.Unleashing communication capabilities with our Duplexer, featurings a highly power designs for superior signals transmission and extensive coverage.

Equipped with female connectors and duplexer functionality, this Repeaters duplexer ensuring stable signals.
Suitable for professional radio engineers and technicians who demand a stable communication link, as well asenthusiasts seekings
NOTE: Our factory can provide many kinds of duplexers,customization is acceptable.Before ordering,please tell us your TX & RX Frequency or Low & High Frequency and Power;
Specifications
| Item | Specifications | Memo |
| Model | KT-SGQ-415/425D | |
| Center Frequency(MHz) | UL:415MHz/DL: 425MHz | Customizable |
| TX/RX Space(MHz) | 10 | |
| Bandwidth (MHz) | 2 | |
| L Port Insertion Loss(dB) | ≤1.0 | |
| H Port Insertion Loss(dB) | ≤1.0 | |
| Rx/Tx Isolation(dB) | ≥75 | |
| VSWR | ≤1:1.5 | |
| Max Input Power(W) | 50 | |
| Port Type | N-female | |
| Dimension(mm ): | 225*155*33 | |
| Weight(kg) | 1 | |
| Temperature Range(℃) | -25~85 | |
| Chassis color | Black spray |
- This item is pre-configured by the factory with a low frequency of 415MHz, a high frequency of 425MHz, and an N-type female connector, making it convenient for building your repeater.
- It is adjustable within the 400-470MHz range, provided you have the necessary tools.
- Please contact us prior to placing your order if you require different low/high frequency tuning.
How to tune the duplexer frequency:
- Gather the necessary tools, including a three-port network analyzer, a dummy load with an N male connector, two RF cables to connect the duplexer to the network analyzer, a slotted screwdriver, and a spanner.
- Power on the network analyzer and follow the frequency network guidelines to monitor the frequency. Use the slotted screwdriver to adjust the six screw poles on the duplexer to achieve the desired frequency.
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