China Ck 1.0 GHz SJ-4B Step Variable Attenuators – Qianjin factory and manufacturers

China Ck 1.0 GHz SJ-4B Step Variable Attenuators – Qianjin factory and manufacturers | Qianjin

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China Ck 1.0 GHz SJ-4B Step Variable Attenuators – Qianjin factory and manufacturers | Qianjin Detail:

1.0 GHz SJ-4B Step Variable Attenuators produce flat (even) loss across Cable TV forward and reverse frequency band. The attenuators are used during amplifier balancing to adjust amplifier signal levels as needed. The step variable loss produced (dB) is between 0 dB to 2.5, 5, 10, 15 dB base on the step. The attenuators are rated for operation up to 1.0 GHz. Within specific amplifier types, the attenuators are also used as equalizers.

Specifications

Item	Units	Value
Attenuation Values	dB	0 – 2.5	0 – 5	0 – 10	0 – 15
Step Value	dB	0.5	1	2	3
Frequency	MHz	0 – 1000
Tolerance at 5 MHz	dB	≤ 0.2
Flatness	dB	± 1.0
Return Loss	dB	≥ 12.0
Impedance	Ω	75

Note: Unless otherwise noted, all specifications reflect typical performance and are referenced to 68°F (20°C). Specifications are based upon measurements made in accordance with SCTE/ANSI standards (where applicable), using standard frequency assignments.

Ordering information

Type: SJ-4B-0.5dB Step - Value 0 – 2.5 dB

SJ-4B-1dB Step - Value 0 – 5 dB

SJ-4B-2dB Step - Value 0 – 10 dB

SJ-4B-3dB Step - Value 0 – 15 dB

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