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Continuously Variable
Attenuators

 

 

2.0-18.0 GHz Models 3" Dia

 General Characteristics
Typical Direct Reading Models
Direct Reading Octave Band Models
Uncalibrated Level Set Models

General Characteristics
  • Frequency bands from 2.0-18.0 GHz
  • Optional dial lock on P version (Form 6921)
  • Many models exhibit flat attenuation vs frequency characteristics
  • Zero Backlash
  • 0.1 dB or better resettability
  • 10 Watts average power, 5 kW peak
  • Type N or SMA female connectors
  • Low VSWR - 1.50 max
  • Non-contacting
  • Low insertion loss:
    0.5 dB max for models up to 60 dB
    1.0 dB max for models above 60 dB
  • Directly calibrated or degree dial
  • Counter clockwise rotation increases loss
  • Stop at low and high loss positions
  • Material:
    Body - Aluminum
    Connectors - Stainless Steel
  • Finish: ARRA Blue per Mil-C-22750

General Information

This series of variable attenuators is our most popular type for direct reading requirements. As in most of our units, it features a non-contacting method of varying attenuation, and calibration does not change with usage.

Direct Reading Models are furnished with dials individually calibrated in 1 dB increments. These units are flat with frequency.

Level Set Models are supplied with dials in degrees for reference. These units do not have attenuation vs frequency specifications. All level set models can be directly calibrated at a spot frequency; contact factory.

Special Models: Most units are manufactured to customer specifications. Accuracies can be quoted for your exact attenuation range and frequency band; contact factory.

Type N Female Connectors are standard. For SMA female connectors, suffix model number with S.

Panel Mounting is standard on Forms 0-1028 and 0-1069. Form 0-701 can be changed to form 0-1096 by preceding model number with P. When panel mounting these units, turn the shaft fully clockwise (0 dial position) and after removing the dial in the dial holder, mount the unit behind the panel with the shaft protruding thru. Then set screw the dial hub to the shaft. The dial can be slipped to align the 0 with the index line (a separate index plate is furnished) and calibration accuracy is perfectly maintained. Because of this arrangement, the units can be oriented in any position behind the panel, while the index plate can be mounted to the panel anywhere on the periphery of the dial.

 


Model 6684-60FS


Model PG5684-50S


Model 6684-100S


Typical Direct Reading Models
Freq
Range (GHz)		 Atten
Range(dB)		 Atten vs
Freq (±dB)		 Form
Factor		 Model
No.*
2.0-3.0 15 2.00 0-701-2 4684-20G
2.2-2.3 20 0.50 0-701-2 F4684-20
2.6-3.0 10 0.50 0-701-2 F4684-10
2.9-3.1 20
30
50		 0.50
1.00
1.50		 0-701-2
0-701-2
0-701-2		 A4684-20
F4684-30
F4684-50
3.0-3.5 10
20		 0.25
0.50		 0-701-2
0-701-2		 G4684-10
G4684-20
3.5-4.5 10 0.60 0-701-2 468-10G
3.7-4.2 20
30
40
50		 0.50
0.75
1.50
2.00		 0-701-2
0-701-2
0-701-2
0-701-2		 B4684-20
G4684-30
F4684-40
G4684-50
3.7-6.5 30 2.00 0-701-2 F4-5684-30
3.8-4.0 50 1.50 0-701-2 F4684-50A
3.8-6.0 20 1.00 0-701-2 G4684-20
3.9-4.1 100 2.00 0-1069-2 F4-5684-100
3.9-4.2 30 1.50 0-701-2 F4-5684-30A
4.0-4.5 50 1.25 0-701-2 5684-50F
4.0-5.0 20 0.50 0-701-2 F5684-20
4.2-4.4 20
40		 0.20
0.75		 0-701-2
0-701-2		 5684-20G
F5684-40
4.4-4.8 60 1.50 0-701-2 5684-60F
4.4-5.0 70 1.75 0-1069-2 5684-70F
4.5-5.0 20 0.25 0-701-2 G5684-20
4.8-5.2 40 0.30 0-701-2 5684-40F
4.9-5.1 30 0.50 0-701-2 A5684-30F
5.0-8.0 30 1.50 0-701-2 5684-30G
5.0-6.0 50 1.50 0-701-2 G5684-50
5.1-5.9 30 1.00 0-701-2 G5684-30
5.2-5.9 120 2.00 0-1069-2 F5684-120
5.2-5.8 20 0.50 0-701-2 A5684-20
5.4-5.9 70
100		 1.75
2.00		 0-1069-2
0-1069-2		 F5684-70
F5684-100
5.4-5.8 80 2.00 0-1069-2 F5684-80
5.5-7.5 30 1.00 0-701-2 B5684-30
5.5-6.1 60 1.50 0-701-2 F5684-60
5.6-5.9 50
70		 0.50
1.00		 0-701-2
0-1069-2		 F5684-50
5684-70G
5.9-6.4 20
30
40
60		 0.25
0.50
1.00
1.50		 0-701-2
0-701-2
0-701-2
0-701-2		 B5684-20
F5684-30
G5684-40
5684-60G
6.2-6.4 100 1.00 0-1069-2 G5684-100
6.5-7.0 30 0.50 0-701-2 A5684-30
7.1-8.4 40 1.00 0-701-4 F6684-40
7.2-7.8 20
40
50		 0.50
0.50
1.00		 0-701-4
0-701-4
0-701-4		 F6684-20
6684-40F
6684-50F
7.7-8.4 60 2.00 0-701-4 6684-60F
7.7-7.9 50 0.50 0-701-4 6684-50G
7.8-8.4 30 0.50 0-701-4 F6684-30
7.9-8.4 20
40
50		 0.25
0.50
1.00		 0-701-4
0-701-4
0-701-4		 6684-20G
6684-40G
F6684-50
8.0-10.0 30 1.00 0-701-4 G6684-30
8.1-8.4 70 0.50 0-1028-2 6684-70F
8.2-8.4 60 1.00 0-701-4 F6684-60
8.5-9.7 40 1.00 0-701-4 G6684-40
8.5-9.6 100 3.00 0-1028-2 6684-100F
8.7-10.2 60 1.50 0-701-4 6684-60G
8.7-9.5 70 1.00 0-1028-2 6684-70G
9.0-10.0 50
100		 1.00
2.00		 0-701-4
0-1028-2		 G6684-50
A6684-50
9.1-9.4 50 0.50 0-701-4 A6684-50
9.2-9.5 120 2.00 0-1028-2 6684-120F
9.4-9.7 100 1.50 0-1028-2 F6684-100
9.5-10.5 30 1.00 0-701-4 6684-30G
9.6-9.8 100 1.00 0-1028-2 G6684-100
10.9-12.2 50 2.00 0-701-4 B6684-50
11.7-12.2 40 0.50 0-701-4 A6684-40
12.7-13.3 50 1.00 0-701-4 F9684-50
14.0-14.5 30
50		 0.20
1.00		 0-701-4
0-701-4		 F9684-30
G-9684-50
14.4-15.3 100 1.50 0-1028-2 F9684-100
15.0-17.0 50 1.00 0-701-4 9684-50G
15.5-16.5 30 1.00 0-701-4 G9684-30
15.7-16.2 40 0.50 0-701-4 F9684-40

Direct Reading Octave Band Models
Freq
Range (GHz)		 Atten
Range(dB)		 Atten vs
Freq (±dB)		 Form
Factor		 Model
No.*
2.0-4.0 10 1.25 0-701-2 4684-10F
4.0-8.0 10
20
30		 0.60
1.00
2.50		 0-701-2
0-701-2
0-701-2		 5684-10F
5684-20F
5684-30F
5.4-11.0 10
20		 1.00
1.50		 0-701-4
0-701-4		 5-6684-10F
5-6684-20F
7.0-11.0 10
20
30		 0.50
1.00
2.00		 0-701-4
0-701-4
0-701-4		 6684-10F
6684-20F
6684-30F
8.0-12.4 10
20
30		 0.50
1.00
2.00		 0-701-4
0-701-4
0-701-4		 6684-10X
6684-20X
6684-30X
12.4-18.0** 10
20
30
40		 0.50
1.00
1.00
2.00		 0-701-3
0-701-3
0-701-3
0-701-3		 9684-10FS
9684-20FS
9684-30FS
9684-40FS

Uncalibrated Level Set Models

 * Model numbers indicate Type N connectors. For SMA connectors, suffix model number with S. Ex: 6684-10S
To indicate panel-mounted version, precede model number with P. Ex: P6684-10
** Units 12.4-18.0 GHz are available with SMA connectors only.

Freq Range (GHz) Atten Range (dB) Form Factor Model Number*
2.0-4.0 10
20		 0-701-2
0-701-2		 4684-10
4684-20
3.0-4.0 10
20
30
40
50		 0-701-2
0-701-2
0-701-2
0-701-2
0-701-2		 4684-10X
4684-20X
4684-30X
4684-40X
4684-50X
4.0-7.0 10
20
30
40
50
70
80
90
100		 0-701-2
0-701-2
0-701-2
0-701-2
0-701-2
0-1069-2
0-1069-2
0-1069-2
0-1069-2		 5684-10
5684-20
5684-30
5684-40
5684-50
5684-70
5684-80
5684-90
5684-100
5.4-11.0 10
20
30
40
50		 0-701-4
0-701-4
0-701-4
0-701-4
0-701-4		 5-6684-10
5-6684-20
5-6684-30
5-6684-40
5-6684-50
7.0-12.4 10
20
30
40
50
60
70
80
90
100		 0-701-4
0-701-4
0-701-4
0-701-4
0-701-4
0-701-2
0-1028-2
0-1028-2
0-1028-2
0-1028-2		 6684-10
6684-20
6684-30
6684-40
6684-50
6684-60
6684-70
6684-80
6684-90
6684-100
12.4-18.0** 10
20
30
40
50
60
70
80
90		 0-701-3
0-701-3
0-701-3
0-701-3
0-701-3
0-701-3
0-1028-1
0-1028-1
0-1028-1		 9684-10S
9684-20S
9684-30S
9684-40S
9684-50S
9684-60S
9684-70S
9684-80S
9684-90S

Note: Knob supplied with every unit

Standard Form 0-701
 Panel Mount P Option
Standard Form 0-1096
 Standard Forms
Standard Form 0-1028 & 0-1069


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