Manufacturer UHF Full-Bridge Digital TV Combiner Duplexer for Television Transmitting Equipment

Product Description

UHF full-bridge digital TV Combiner 1. Model: ZRUHF-DG
2. Structural form: full-bridge structure, broadband port reserved; The duplexer consists of two bridge units, and the broadband port is reserved, which can be directly extended to the duplexer
3. The user can adjust it on site within the full frequency range, and the parts are not replaced during adjustment
4. Frequency range: 470-900MHz
5. Bandwidth: 8MHz
6. Power capacity: digital 50W~digital 10kW various power grade models are optional (take digital 1kW duplex unit as an example)
Single-channel narrowband input: ≥ 1.5kW (digital power)
Broadband port input: ≥ 4kW (digital power)
Total output: ≥ 5kW (digital power)
Absorbed load withstand power:
≥ 100W @ non-adjacent frequency (digital power)
≥ 300W @ adjacent frequency (digital power)
7. In-band loss (taking digital 1kW full-bridge triplex as an example):
Center insertion loss: f (0), adjacent frequency ≤ 0.58dB, non-adjacent frequency ≤ 0.59dB
Sideband insertion loss: f (0) ± 3.8MHz, adjacent frequency ≤ 2.4dB, non-adjacent frequency ≤ 1.4dB
8. Port SWR: 1.09
9. Isolation degree (taking digital 1kW full-bridge triplex as an example):
Narrowband to broadband ≥ 35dB; Broadband to narrowband ≥ 55dB
Port isolation: f (0) ± 3.8MHz in band ≥ 35dB
10. Temperature rise at full power: ≤ 25 ºC
11. Port: 1-5/8, 3-1/8
12. Port impedance: 50 Ω
13. Working environment:
Storage environment temperature: - 40 ºC~+85 ºC
Working temperature: - 10 ºC~+60 ºC
Relative humidity: ≤ 95%
14. Equipment size: customized according to different requirements
The digital TV multiplexer adopts a dual cross coupled filter, with adjustable operating frequencies in the full frequency range of 470-900MHz, which can achieve the synthesis of any TV channel, including adjacent channel synthesis;
The narrowband input of the digital television multiplexer meets the out of band spectrum requirements of the digital television transmitter, and the transmitter does not need to install a bandpass filter;
The filter in the digital TV multiplexer adopts integrated molding processing technology, with excellent consistency and various indicators;
The digital television multiplexer has a compact structure and beautiful appearance.

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