SQ Cable Device

1.2 GHz SJ-2B 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 variable loss produced (dB) is between 0 dB to 10 dB or 0 dB to 20 dB. The attenuators are rated for operation up to 1.2 GHz. Within specific amplifier types, the attenuators are also used as equalizers.

Specifications

Item	Units	Value
Attenuation Values	dB	0 - 10	0 - 20
Frequency	MHz	0 - 1200
Insertion Loss at 5 MHz	dB	≤ 1.0
Return Loss	dB	≥ 18.0 @ 0 - 204 MHz
		≥ 16.0 @ 205 - 750 MHz
		≥ 14.0 @ 751 - 860 MHz
		≥ 12.0 @ 861 - 1200 MHz
Impedance	Ω	75
Knob Color	-	Red, Blue
Box	-	Blue, Black
Cover	-	Transparence, Yellow

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.

Dimensions

Shaft Size
Shaft diameter Ф (mm)	Shaft length L (mm)
5	2, 6.5, 9, 10.5
6	5

Ordering information

The Variable Attenuators are available in a wide variety of attenuator value and length. Please consult with us to determine the best choose for your application.

SJ-2B-10dB: 1200 MHz, 10dB, blue box, red knob, 9 mm knob, transparence cover.

SJ-2B-20dB: 1200 MHz, 20dB, blue box, red knob, 9 mm knob, transparence cover.

When you want different type you must add label.

Example:

SJ-2B-10dB (blue box, blue knob, 5mm knob, transparence cover):

1200MHz,10dB, blue box, blue knob, 5mm knob, transparence cover

SJ-2B

About Us

Contact