Satellite reception systems sometimes use a diplexer to combine or separate the satellite-IF and CATV or TV's VHF/UHF signals in order to reduce accessories and coaxial cable used(see fig. 5). This will affect the signal quality and even generate interference if a poor quality diplexer is used. Now, we provide a better diplexer for you.

The DPX1 series is a newly designed high performance diplexer. It offers many features.

1. Lowest Insertion Loss: VHF/UHF band-through-loss <1.0dB and satellite-IF band <1.5dB. Signal-through-loss reduced to an absolute minimum.

2. Excellent Return Loss: Better than 14dB is essential for satellite-IF band to provide a good impedance match so as avoid increased noise and to reduce signal loss to keep the signal clean.

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

The electrical curve is shown in fig. 1, 2, specifications in table 1.

Also Recommended

Our DPX series diplexers are available in three different housings (DPX1, DPX2 and DPX3) to fit your mechanical requirements.

- Technical Notes -
 * Satellite-IF band : 950 - 2150MHz
 * VHF/UHF band : 54 - 806MHz in USA (47- 862MHz in EUROPE)
 * The satellite-IF signal level is 45 to 65dBuV, CATV or TV's signal levels are 60 to 80dBuV under normal conditions.