SOONTAI - VHF/UHF Diplexers (High Rejection, High Isolation)

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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.