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VHF / UHF Diplexers
DPX1 Series

 
 

Features
 
* Wideband, up to 1.8 GHz

* Support DOCSIS 3.1, MoCA, EoC

* Low Loss

* High Rejection

* Excellent Return Loss

* Flat Passband

* High Stability

* Die-casting Housing

* High RFI Shielding

* Precision Connector Thread

* Good Plating Quality

* Good Weather Resistance
 
 
Introduction

The DPX1 VHF/UHF diplexer can be used to combine or separate two signal bands (VHF / UHF band) for applications in TV, CATV, MMDS...ect, receiving systems.

If you use a poor quality diplexer, it will affect the signal quality and cause interference.

The DPX1 series is a wideband, high performance VHF/ UHF diplexers. It offers many features:

1. Lowest insertion loss: VHF and UHF bands through-loss < 1.0dB, reduced the insertion loss to absolute minimum.

2. Excellent return loss: Better than 18dB in essential for VHF and UHF bands to provide a good match of impedance so as avoid an increased in noise and to reduce signal loss to keep the signal clean.

3. High rejection: Better than 45dB provides a good isolation and avoids interference.

4. Closed cover panel and thick die-casting housing provides very good RFI shielding performance.

In addition to the general models in the table below, the VHF and UHF bands can be designed according to customer specifications.

* In a typical design, the DC power passing path is from the VHF port to the IN / OUT port and can be converted to UHF port to the IN / OUT port if required, please note in your order information.

For more diplexer products, please see our diplexer category.

  Items
Model Band 1 Band 2
DPX1 - 250/450 5 - 250 MHz 450 - 1000 MHz
DPX1 - 265/470 5 - 265 MHz 470 - 1000 MHz
DPX1 - 390/650 5 - 390 MHz 650 - 1000 MHz
  Electrical Curve ( DPX1-265/470 )

Insertion Loss  |  Return Loss
VHF Band
Fig. 1

Insertion Loss  |  Return Loss
UHF Band
Fig. 2
  General Specifications
  Item DPX1 - 265 / 470
  Impedance 75 Ohm
  Band VHF UHF
  Frequency Range 5 - 265 MHz 470 - 1000 MHz
  Insertion Loss 0.5 dB(typ) / 1.5 dB(max) 0.5 dB(typ) / 1.5 dB(max)
  Return Loss 20 dB(typ) / 15 dB(min) 20 dB(typ) / 14 dB(min)
  Rejection > 50 dB(typ) / 45 dB(min) > 50 dB(typ) / 45 dB(min)
  Isolation 50 dB(typ) / 45 dB(min) 50 dB(typ) / 45 dB(min)
  Power Passing DC +30 V / 500 mA(max) Blocked
  Dimensions 18(H) x 74.5(W) x 33(D) mm
  Net Weight (approx.) 60 g
 * Specifications may be change depending on the model or customer's requirement.

 

 
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