STA-60-42-D1

Final Rev 1.3

Description:
Model STA-60-42-D1 is a direct reading, rotary vaneattenuator for use in millimeter wave systems across thestandard K-band frequency range of 18 to 26.5 GHz. The
attenuator has a large scale dial which indicates theattenuation value directly. The attenuator is an ideal piece ofequipment in waveguide systems where a broad direct
reading of attenuation is required. The attenuator exhibits
0.5 dB maximum insertion loss and up to maximum 60 dB
attenuation. The accuracy of the attenuator is 0.1 dB or 3% of the reading, whichever is larger, up to 40dB, 5% up to 50 dB, and “for reference only” above 50 dB.

Features:•••

Applications:•••

Full Band CoverageHigh Attenuation Accuracy
Large Scaled Dial

Test Lab
Instrumentations
Manual Test Set

Electrical Specifications:Parameter
RF Frequency Range
Insertion Loss
Return Loss
Attenuation Range
Attenuation Accuracy
Power HandlingSpecification Temperature
Operating Temperature

Minimum
18.0 GHz

TypicalMaximum
26.5 GHz
0.5 dB

SAGE Millimeter, Inc.

K-Band Direct Reading Attenuator

22 dB0 dB
60 dB
0.1 dB or 3% of reading, whichever is larger, up to 40 dB
500 mW+25 ˚C+25 ˚C*This product is intended to be used in a controlled lab environment.
To ensure best possible accuracy and prevent unintended behavior, please operate the unit as close to +25 °C room
temperature as possible.

Mechanical Specifications:
ItemRF Input
RF Output
Reading
Scale Increments
Insertion Length
FinishWeight
OutlineSpecification
WR-42 Waveguide with UG-595/U Flange
WR-42 Waveguide with UG-595/U Flange
Large Scale Dial
0.01 dB (0 to 0.1 dB); 0.05 dB (0.1 to 1.0 dB); 0.1 dB (1.0 to 10 dB)
0.02 dB (10 to 20 dB); 0.05 dB (20 to 30 dB); 1.0 dB (30 to 50 dB)
8.48”
Black Anodized
2.4 lbTA-DK

www.eravant.com | 501 Amapola Ave, Torrance, CA 90501
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: support@eravant.com
Copyright © 2024 by Eravant

Page | 1

STA-60-42-D1Final Rev 1.3

Mechanical Outline: (Unless otherwise specified, all dimensions are in inches)

Note:• All calibration and testing are performed at +25 °C room temperature.
• Calibration accuracy is 0.1 dB or 3% of the reading, whichever is greater, for attenuation ranges
up to 40 dB, 5% up to 50 dB, and “for reference only” above 50 dB.
• This product is intended to be used in a controlled lab environment. To ensure best possible
accuracy and prevent unintended behavior, please operate the unit as close to +25 °C room
temperature as possible.
• The attenuation flatness is ±2% or ±0.5 dB of the indicated value, whichever is greater, for thefrequency band.
• The phase shift value does change while varying the attenuation.
• Every twelve-month scheduled calibration is recommended.
• Eravant reserves the right to change the information presented without notice.

SAGE Millimeter, Inc.

K-Band Direct Reading Attenuator

Caution:• Exceeding absolute maximum ratings shown will damage the device.
• Any foreign objects in the waveguide will cause performance degradation and may damage thedevice.

www.eravant.com | 501 Amapola Ave, Torrance, CA 90501
Phone: 424-757-0168 | Fax: 424-757-0188 | Email: support@eravant.com
Copyright © 2024 by Eravant

Page | 2