N8485A Data Sheet

Keysight Technologies

N8480 Series Thermocouple Power Sensors

Data Sheet

Introduction

The Keysight Technologies, Inc. N8480 Series thermocouple power sensors are amongst the most accurate and reliable sensors, plus they include EEPROM, and extended frequency and power ranges.

Accurate, repeatable measurements

Here’s how: Excellent linearity (1% approximately) and noise speciications. The sensors’ low SWR further enhances accuracy by minimizing mismatch uncertainty. These sensors also come with dual-range power for greater sensitivity to luctuating signals. With high accuracy and stability, the N8480 helps you test conidently, faster.

Calibration-easy testing

During test, calibrating your sensor is an essential step. Minimizing the time this step takes is essential.

The N8480 sensor eliminates cumbersome keying-in of the calibration factor (CF), eliminates manual input errors, and saves you time and effort. CF, linearity, and temperature corrections are all stored in the sensors’

EEPROM—auto-downloaded on calibration. The N8480 Series streamlines the calibration procedure making overall testing faster and more eficient.

One sensor, WIDEST range

Pick an N8480 sensor—any one—and you’ll see how its wide dynamic range equips you for various applications: metrology labs, radar, mobile radio, TDMA, GSM, W-CDMA, and WiMAX™, among others. With up to

55 dBm wide dynamic range, the N8480 Series offers you the widest thermocouple sensor power range in the industry.

System integration can be dificult, but not with the N8480

The N8480 Series sensors are backward compatible with the Keysight leading range of power meters, including the P-Series, EPM-P Series, and EPM Series. All that’s needed is a simple irmware upgrade that’s downloadable for free from the Website.

All SCPI codes used on the E-Series sensors are re-usable on the N8480, including most of the codes used on the 8480 Series. When migrating code from the 8480 Series, Option CFT

1 will allow SCPI codes to behave much like they do on the 8480 Series.

Features

–

High accuracy with excellent linearity and noise speciications

–

Wide dynamic range in a single sensor

– Auto-download of calibration factor and corrections from EEPROM

– Option CFT provides full-code compatibly between sensors and the 8480 Series (excluding the N8488A)

– Broad compatibility with existing power meters: P-Series (N1911A/12A), EPM-P Series (E4416A/17A), and EPM Series (N1913A/14A, E4418B/19B)

1. Option CFT is not available for the N8488A power sensor.

03 | Keysight | N8480 Series Thermocouple Power Sensors - Data Sheet

Speciication Deinitions

There are two types of product speciications:

–

Warranted speciications

–

Characteristic speciications

Warranted speciications

Warranted speciications are covered by the product warranty and apply over 0 to 55 °C, unless otherwise noted. Warranted speciications include measurement uncertainty calculated with 95% conidence.

Characteristic speciications

Characteristic speciications are not warranted. They describe product performance that is useful in the application of the power sensors by giving typical, but non-warranted performance parameters. These characteristics are shown in italics or denoted as “typical”, “nominal” or “approximate”.

Characteristic information is representative of the product. In many cases, it may also be supplemental to a warranted speciication.

Characteristic speciications are not veriied on all power sensors. The types of characteristic speciications can be placed in two groups:

–

The irst group of characteristic types describes ‘attributes’ common to all products of a given model or option. Examples of characteristics that describe attributes are product weight and 50-Ω input Type-N connector. In these examples, product weight is an approximate

value and a 50-Ω input is nominal. These two terms are most widely used when describing a product’s attributes.

–

The second group of characteristic types describes ‘statistically’ the aggregate performance of the population of products. These characteristics describe the expected behavior of the population of products. They do not guarantee the performance of any individual product. No measurement uncertainty value is accounted for in the speciication. These speciications are referred to as typical.

Conditions

The power meter and power sensor meet their speciications when:

– Stored for a minimum of two hours at a stable temperature within the operating temperature range and turned on for at least 30 minutes

– The power meter and power sensor are within their recommended calibration periods

– Used in accordance to the information provided in the power meter’s user’s guide


Performance Characteristics

Speciications stated hereon refer to all N8480 Series power sensors, unless otherwise stated. The term “standard” refers to all N8480 Series sensors except Option CFT.

Frequency and dynamic power range

Sensor option

Standard

Option CFT

Sensor model

N8481A

N8482A

N8485A

N8485A - Option 33

N8487A

N8488A

N8486AR

N8486AQ

N8481B

N8482B

N8481H

N8482H

N8481A

N8482A

N8485A

N8485A - Option 33

N8487A

N8486AR

N8486AQ

N8481B

N8482B

N8481H

N8482H

Frequency range

10 MHz to 18 GHz

100 kHz to 6 GHz

10 MHz to 26.5 GHz

10 MHz to 33 GHz

50 MHz to 50 GHz

10 MHz to 67 GHz,

67 GHz to 70 GHz

26.5 to 40 GHz

33 to 50 GHz

10 MHz to 18 GHz

100 kHz to 6 GHz

10 MHz to 18 GHz

100 kHz to 6 GHz

10 MHz to 18 GHz

100 kHz to 6 GHz

10 MHz to 26.5 GHz

10 MHz to 33 GHz

50 MHz to 50 GHz

26.5 to 40 GHz

33 to 50 GHz

10 MHz to 18 GHz

100 kHz to 6 GHz

10 MHz to 18 GHz

100 kHz to 6 GHz

Dynamic power range

–35 to +20 dBm

–5 to +44 dBm

–15 to +35 dBm

–30 to +20 dBm

0 to +44 dBm

–10 to +35 dBm

Damage level

Sensor model

N8481A

N8482A

N8485A

N8487A

N8488A

N8486AR

N8486AQ

N8481B

N8482B

N8481H

N8482H

Damage level (average power)

+25 dBm

+49 dBm

+40 dBm

Damage level (peak power)

15 W/2 μs

500 W/1 μs

100 W/1 μs


Performance Characteristics (continued)

Maximum SWR

1

Sensor model

N8481A

N8482A

N8485A

N8487A

N8488A

N8486AR

N8486AQ

N8481B

N8482B

N8481H

Frequency band

10 to 30 MHz

30 to 50 MHz

50 MHz to 2 GHz

2 to 12.4 GHz

12.4 to 18 GHz

100 to 300 kHz

300 kHz to 1 MHz

1 MHz to 2 GHz

2 to 6 GHz

10 to 50 MHz

50 to 100 MHz

100 MHz to 2 GHz

2 to 12.4 GHz

12.4 to 18 GHz

18 to 26.5 GHz

26.5 to 33 GHz 2

50 to 100 MHz

100 MHz to 2 GHZ

2 to 12.4 GHz

12.4 to 18 GHz

18 to 26.5 GHz

26.5 to 40 GHz

40 to 50 GHz

10 to 100 MHz

100 MHz to 2.4 GHz

2.4 to 12.4 GHz

12.4 to 18 GHz

18 to 26.5 GHz

26.5 to 40 GHz

40 to 67 GHz

67 to 70 GHz

50 MHz 3

26.5 to 40 GHz

50 MHz 3

33 to 50 GHz

10 MHz to 2 GHz

2 to 12.4 GHz

12.4 to 18 GHz

100 kHz to 2 GHz

2 to 6 GHz

10 MHz to 8 GHz

8 to 12.4 GHz

12.4 to 18 GHz

100 kHz to 6 GHz

1.08

1.08

1.10

1.12

1.21

1.30

1.46

1.48

1.17

1.40

1.17

1.50

1.08

1.05

1.10

1.16

1.22

1.30

1.34

1.33

1.08

1.05

1.14

1.19

1.26

1.32

1.09

1.14

1.23

1.08

1.16

1.16

1.22

1.32

1.13

Maximum SWR

25 ± 10 °C

1.37

1.14

1.08

1.16

1.23

1.54

1.17

1.06

1.07

1.20

1.40

1.20

1.50

1.10

1.18

1.28

1.10

1.18

1.08

1.08

1.10

1.14

1.23

1.31

1.47

1.50

1.10

1.07

1.10

1.16

1.22

1.30

1.33

1.16

1.22

1.41

1.14

1.57

1.17

1.06

1.08

1.53

1.11

1.07

1.14

1.20

1.28

1.36

0 to 55 °C

1.57

1.16

1.11

1.16

1.25

N8482H

1.

For overlapping frequency points, refer to the lower SWR speciication.

2. Only applicable for N8485A Option 033.

3.

SWR for 50 MHz calibration port. Type-N (m) coaxial connector is used in the 50 MHz calibration.



1.20

1.18

1.16

1.14

1.12

1.10

1.08

1.06

1.04

1.02

1

0 2 4 6 8 10 12 14 16 18

Frequency GHz

Typical SWR, 10 MHz to 18 GHz (25 ± 10 °C) for N8481A sensor

1.04

1.03

1.02

1.01

1

0 1 2 3

Frequency GHz

4 5

Typical SWR, 100 kHz to 6 GHz (25 ± 10 °C) for N8482A sensor

6

1.20

1.18

1.16

1.14

1.12

1.10

1.08

1.06

1.04

1.02

1

0 5 10 15 20 25

Frequency GHz

30 35

Typical SWR, 10 MHz to 26.5 GHz (25 ± 10 °C) for N8485A sensor

1.20

1.18

1.16

1.14

1.12

1.10

1.08

1.06

1.04

1.02

1

0 10 20 30

Frequency GHz

40 50 60

Typical SWR, 50 MHz to 50 GHz (25 ± 10 °C) for N8487A power sensor

1.30

1.25

1.20

1.15

1.10

1.05

1

0 10 20 30 40 50

Frequency GHz

60 70

Typical SWR, 10 MHz to 70 GHz (25 ± 10 °C) for N8488A power sensor

1.41

1.36

1.31

1.26

1.21

1.16

1.11

1

33 36 39 42

Frequency GHz

45 48 51

Typical SWR, 33 to 50 GHz (25 ± 10 °C) for N8486AQ power sensor



1.22

1.20

1.18

1.16

1.14

1.12

1.10

1.08

1.06

1.04

26.5

29 31.5

34

Frequency GHz

36.5

39 41.5

Typical SWR, 26.5 to 40 GHz (25 ± 10 °C) for N8486AR power sensor

1.08

1.07

1.06

1.05

1.04

1.03

1.02

1.01

1

0 2 4 6 8 10 12 14 16 18 20

Frequency GHz

Typical SWR, 10 MHz to 18 GHz (25 ± 10 °C) for N8481B power sensor

1.028

1.026

1.024

1.022

1.020

1.018

1.016

1.014

1.012

1.01

0 1 2 3 4

Frequency GHz

5 6 7

Typical SWR, 100 kHz to 6 GHz (25 ± 10 °C) for N8482B power sensor

1.12

1.10

1.08

1.06

1.04

1.02

1

1.24

1.22

1.20

1.18

1.16

1.14

0 2 4 6 8 10 12 14 16 18 20

Frequency GHz

Typical SWR, 10 MHz to 18 GHz (25 ± 10 °C) for N8481H power sensor

1.09

1.08

1.07

1.06

1.05

1.04

1.03

1.02

1.01

1

0 1 2 3 4

Frequency GHz

5 6 7

Typical SWR, 100 kHz to 6 GHz (25 ± 10 °C) for N8482H power sensor



Power linearity

1

The N8480 Series power sensors’ linearity is negligible except for the power range speciied in the table below.

Sensor model Power range Linearity (25 ± 10 °C) Linearity (0 to 55 °C)

N8481A, N8482A, N8485A, N8487A, N8488A,

N8486AR, N8486AQ

–1 to < +15 dBm

+15 to +20 dBm

±0.52%

±0.80%

±0.80%

±1.90%

N8481B, N8482B

N8481H, N8482H

+29 to < +39 dBm

+39 to +44 dBm

+17 to < +30 dBm

+30 to +35 dBm

±0.52%

±1.66%

±0.77%

±2.84%

±0.80%

±2.75%

±1.05%

±3.93%

1. After zero and calibration at ambient environment conditions

1

0.5

Power level

–1 to +20 dBm

Measurement uncertainty

±0.35%

–5

–0.5

0

5 10 15 20 25

–1

Input power (dBm)

Typical N8481A/2A/5A/7A/8A and N8486AR/AQ power linearity at 25 °C, after zero and calibration with associated measurement uncertainty

1.0

0.8

0.6

0.4

0.2

0

–0.2

–0.4

–0.6

–0.8

–1.0

5 10 15 20 25

Power level

29 to 40 dBm

40 to 44 dBm

Input power (dBm)

Typical N8481B/2B power linearity at 25 °C, after zero and calibration with associated measurement uncertainty

–5

1.0

0.8

0.6

0.4

0.2

–0.2

0

–0.4

–0.6

–0.8

–1.0

5 10 15 20 25

Power level

17 to 30 dBm

30 to 35 dBm

Input power (dBm)

Typical N8481H/2H power linearity at 25 °C, after zero and calibration with associated measurement uncertainty


±0.35%

±1.21%


±0.60%

±2.39%



Zero set, zero drift and measurement noise

Sensor model

N8481A, N8482A,

N8485A, N8487A,

N8486AR, N8486AQ

N8488A

N8481B, N8482B

N8481H, N8482H

Sensor option

Standard

Option CFT

Standard

Option CFT

Standard

Option CFT

Standard

Option CFT

N/A 5

Upper

Lower

N/A 5

Upper

Lower

N/A 5

Range

Upper

Lower

N/A 5

Upper

Lower

Conditions (RH)

20% to 70%

20% to 70 %

20% to 70%

20% to 70%

20% to 70 %

N/A 5

20% to 70%

20% to 70 %

20% to 70%

20% to 70%

20% to 70 %

20% to 70%

1 Zero set 4

± 63 nW

± 25 nW

± 63 nW

± 63 nW

± 25 nW

N/A 5

± 63 μW

± 25 μW

± 63 μW

± 63 μW

± 2.5 μW

± 6.3 μW

Zero drift 2, 4

< ± 7 nW

< ± 3 nW

< ± 7 nW

< ± 7 nW

< ± 3 nW

N/A 5

< ± 7 μW

< ± 3 μW

< ±7 μW

< ± 0.7 μW

< ± 0.3 μW

< ± 0.7 μW

Measurement noise 3, 4

< 114 nW

< 80 nW

< 114 nW

< 114 nW

< 80 nW

N/A 5

< 114 μW

< 80 μW

< 114 μW

< 11.4 μW

< 8 μW

< 11.4 μW

1. RH is the abbreviation for relative humidity.

2. Average hourly drift, at constant temperature. If there is an abrupt change of temperature, it is strongly recommended to perform zeroing or waiting for

30 minutes before taking the measurement.

3. The number of averages at 16 for normal mode and 32 for x2 mode, at a constant temperature, measured over one-minute interval and two standard deviations.

4.

The zero set, zero drift, and measurement noise speciications are tested at 50 MHz.

5. N/A is the appreviation for “not applicable.”

Effects of averaging on noise:

Averaging over 1 to 1024 readings is available for reducing noise. The table below provides the measurement noise for a particular sensor with the number of averages set at 16 (for normal mode) and 32 (for x2 mode). Use the noise multiplier, for the appropriate mode (normal or x2) and number of averages, to determine the total measurement noise value.

Example:

N8481A power sensor, normal mode, number of averages = 4

Measurement noise calculation:

< 80 nW x 2.75 = < 220 nW

Number of averages

Noise multiplier

Normal mode x2 mode

1

5.5

6.5

2

3.89

4.6

4

2.75

3.25

8

1.94

2.3

16

1

1.63

32

0.85

1

64

0.61

0.72

128

0.49

0.57

256

0.34

0.41

512

0.24

0.29

1024

0.17

0.2



Switching point

The N8480 Series power sensors (excluding Option CFT) have two measurement ranges: a lower power range and an upper power range. The power meter automatically selects the proper power level range. To avoid unnecessary switching when the power level is near the switch point, switching point hysteresis has been added.

N8481A/82A/85A/87A/88A and N8486AQ/AR power sensors

This hysteresis causes the lower power range to remain selected until approximately

–0.5 dBm as the power level is increased. Above this power, the upper power range is selected.

Likewise, the upper power range remains selected until approximately –1.5 dBm as the signal level decreases. Below this power, the lower power range is selected.

N8481B/82B power sensors


29.5 dBm as the power level is increased. Above this power, the upper power range is selected.

Likewise, the upper power range remains selected until approximately 28.5 dBm as the signal level decreases. Below this power, the lower power range is selected.

N8481H/82H power sensors


17.5 dBm as the power level is increased. Above this power, the upper power range is selected.

Likewise, the upper power range remains selected until approximately 16.5 dBm as the signal level decreases. Below this power, the lower power range is selected.

Power range in range setting

Sensor

N8481A/82A/85A/87A/88A and

N8486AQ/AR excluding Option CFT

N8481B/82B excluding Option CFT

N8481H/82H excluding Option CFT

Range setting

AUTO (default)

LOWER

UPPER 1

AUTO (default)

LOWER

UPPER 1

AUTO (default)

LOWER

UPPER 1

Lower range

–35 to –1 dBm

–35 to –1 dBm

—

–5 to +29 dBm

–5 to +29 dBm

—

–15 to +17 dBm

–15 to +17 dBm

—

1. Recommended for pulse signals measurement with period of more than one second

Upper range

–1 to +20 dBm

—

–30 to +20 dBm

+29 to +44 dBm

—

0 to +44 dBm

+17 to +35 dBm

—

–10 to +35 dBm



Settling time

1

Manual ilter, 10-dB decreasing power step for normal and x2 modes (not across switching point)

Number of averages 1 2 4 8 16 32 64 128

Settling time (s)

Normal speed x2 speed

0.15

0.15

0.2

0.18

0.3

0.22

0.5

0.35

1.1

0.55

1.9

1.1

3.4

1.9

6.6

3.5

1. Settling time: 0 to 99% settled readings over the GPIB

Auto ilter, default resolution, 10-dB decreasing power step for normal and x2 modes

(not across switching point) x2 mode Normal mode Maximum dBm

256

13

6.9

512

27

14.5

1024

57

33

Typical settling times

150 ms

180 ms

400 ms

3.6 s

6.6 s

150 ms

200 ms

1 s

6.6 s

13.5 s

20 dB

10 dB

10 dB

10 dB

5 dB

Sensor dynamic range

Minimum dBm

Calibration factor and relection coeficient

Calibration factor (CF) and relection coeficient (Rho) data are unique to each sensor.

The CF corrects for the frequency response of the sensor. The Keysight EPM Series,

EPM-P Series, and P-Series power meters automatically read the CF data stored in the sensor’s EEPROM and use it to make the corrections.

The relection coeficient (Rho or ρ) relates to the SWR according to the following formula:

SWR =

1 + ρ

1 – ρ

Typical measurement uncertainties of the calibration factor (CF) are listed in the following table. There is only one set of CF data used for both the high and low range of each sensor. The typical measurement uncertainty data listed in the table is meant to help users on the measurement uncertainty estimation. These values are only a guideline and are not to be used in any accurate uncertainty calculations. For accurate measurement uncertainty values, please refer to the measurement report 1

of the speciic sensor.

1. Only applicable with the purchase of Option 1A7 or Option A6J



Calibration factor uncertainty

The typical measurement uncertainties listed are not to be taken as the maximum CF measurement uncertainties.

25 ± 3 °C

Frequency

100 kHz to 10 MHz

N8481A

—

N8481B

—

N8481H N8482A N8482B N8482H N8485A N8487A

— 0.91

1.48

0.89

— —

N8486AR N8486AQ

— —

10 to 30 MHz

30 to 500 MHz

6 to 14 GHz

14 to 18 GHz

0.82

0.77

500 MHz to 1.2 GHz 0.78

1.2 to 6 GHz 0.91

1.26

1.59

1.42

1.48

1.48

1.58

1.77

1.92

0.77

0.89

0.89

1.06

1.46

1.73

0.78

0.77

0.78

0.89

—

—

1.43

1.49

1.49

1.56

—

—

0.79

0.89

0.89

1.02

—

—

0.82

1.24

1.26

1.35

1.66

1.83

—

1.33

1.35

1.41

1.61

1.73

—

—

—

—

—

—

—

—

—

—

—

—

18 to 26.5 GHz

26.5 to 33 GHz

33 to 34 GHz

34 to 35 GHz

35 to 40 GHz

40 to 45 GHz

45 to 50 GHz

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

2.67

3.32

—

—

—

—

—

2.26

2.58

2.80

2.80

2.80

3.66

4.23

—

2.68

3.19

3.19

3.19

—

—

—

—

3.14

3.40

3.14

3.19

3.26

Frequency

100 kHz to 50 MHz

50 to 100 MHz

100 MHz to 2 GHz

2 to 12.4 GHz

12.4 to 18 GHz

18 to 26.5 GHz

26.5 to 50 GHz

50 to 67 GHz

67 to 70 GHz

1.75

1.92

2.43

4.56

5.30

5.81

25 ± 3 °C

N8488A

1.70

1.60

1.58



Calibration factor uncertainty (continued)


25 ± 10 °C

Frequency

100 kHz to 10 MHz

N8481A

—

N8481B

—

N8481H N8482A N8482B N8482H N8485A N8487A

— 1.28

2.40

0.99

— —

N8486AR N8486AQ

— —

10 to 30 MHz

30 to 500 MHz

6 to 14 GHz

14 to 18 GHz

1.47

1.03

500 MHz to 1.2 GHz 0.97

1.2 to 6 GHz 1.23

1.85

2.17

1.98

1.91

1.91

1.97

2.69

3.20

1.39

1.10

1.15

1.42

3.87

7.01

1.03

1.03

1.08

1.81

—

—

1.84

1.83

1.94

2.68

—

—

0.86

0.98

1.00

1.19

—

—

0.94

1.43

1.52

1.68

2.26

2.47

—

1.84

2.10

2.36

2.87

3.14

—

—

—

—

—

—

—

—

—

—

—

—

18 to 26.5 GHz

26.5 to 33 GHz

33 to 34 GHz

34 to 35 GHz

35 to 40 GHz

40 to 45 GHz

45 to 50 GHz

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

3.75

4.79

—

—

—

—

—

3.77

4.17

4.55

4.55

4.55

5.40

6.02

—

3.48

4.07

4.07

4.07

—

—

—

—

5.02

4.99

5.02

5.17

5.20

Frequency

100 kHz to 50 MHz

50 to 100 MHz

100 MHz to 2 GHz

2 to 12.4 GHz

12.4 to 18 GHz

18 to 26.5 GHz

26.5 to 50 GHz

50 to 67 GHz

67 to 70 GHz

2.45

2.89

3.52

4.99

6.46

7.29

25 ± 10 °C

N8488A

2.83

1.98

1.84



Calibration factor uncertainty (continued)


0 ± 55 °C

Frequency

100 kHz to 10 MHz

N8481A

—

N8481B

—

N8481H N8482A N8482B N8482H N8485A N8487A

— 1.59

2.67

1.41

— —

N8486AR N8486AQ

— —

10 to 30 MHz

30 to 500 MHz

6 to 14 GHz

14 to 18 GHz

4.46

1.57

500 MHz to 1.2 GHz 1.65

1.2 to 6 GHz 2.04

2.62

3.27

3.64

2.22

2.49

2.85

3.81

4.30

2.83

1.44

1.60

1.96

4.81

9.74

0.91

1.16

1.54

1.99

—

—

1.73

1.77

2.12

3.91

—

—

0.86

1.03

1.07

1.40

—

—

1.25

1.98

2.07

2.40

2.99

3.35

—

2.14

2.45

2.65

3.17

3.41

—

—

—

—

—

—

—

—

—

—

—

—

18 to 26.5 GHz

26.5 to 33 GHz

33 to 34 GHz

34 to 35 GHz

35 to 40 GHz

40 to 45 GHz

45 to 50 GHz

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

4.70

6.41

—

—

—

—

—

4.04

4.43

4.84

4.84

4.84

5.70

6.19

—

3.76

4.25

4.25

4.25

—

—

—

—

6.04

6.04

6.04

5.86

6.59

Frequency

100 kHz to 50 MHz

50 to 100 MHz

100 MHz to 2 GHz

2 to 12.4 GHz

12.4 to 18 GHz

18 to 26.5 GHz

26.5 to 50 GHz

50 to 67 GHz

67 to 70 GHz

2.61

3.15

4.50

5.67

7.18

8.69

0 ± 55 °C

N8488A

3.69

2.63

2.40



Typical CF and SWR versus frequency

The chart below shows supplemental characteristics intended to provide additional information, useful in applying the power sensor by giving typical but not warranted performance parameters.

96

95

94

93

100

99

98

97

92

91

0.05

1 4 8 12

Frequency GHz

15 18 23

1.05

11

0.95

27

0.9

1.25

1.2

1.15

1.1

Typical CF

Typical SWR



General speciications

Dimensions and weight

Dimensions (W x H x L)

Weight

N8481A/82A: 38 mm W x 30 mm H x 130 mm L

N8485A: 38 mm W x 30 mm H x 121 mm L

N8487A: 38 mm W x 30 mm H x 121 mm L

N8488A: 38 mm W x 30 mm H x 115 mm L

N8486AR: 38 mm W x 62 mm H x 152 mm L

N8486AQ: 38 mm W x 62 mm H x 152 mm L

N8481B/82B: 83 mm W x 114 mm H x 283 mm L

N8481H/82H: 38 mm W x 30 mm H x 174 mm L

N8481A/2A: Net: 0.181 kg (0.40 lb) Shipping: 0.90 kg (1.98 lb)

N8485A: Net: 0.183 kg (0.40 lb); Shipping: 0.90 kg (1.98 lb)



N8486AR: Net: 0.202 kg (0.45 lb); Shipping: 0.922 kg (2.03 lb)

N8486AQ: Net: 0.204 kg (0.45 lb); Shipping: 0.924 kg (2.03 lb)

N8481B/82B: Net: 0.684 kg (1.51 lb); Shipping: 1.404 kg (3.09 lb)

N8481H/82H: Net: 0.234 kg (0.52 lb); Shipping: 0.954 kg (2.10 lb)

Operating environment

Temperature

Humidity

Altitude

Storage conditions

Temperature

Humidity

Altitude

0 to 55 °C

Maximum: 95% RH at 40 °C non-condensing

Minimum: 15% RH at 40 °C non-condensing

Up to 4600 m (15,000 ft)

–40 to 70 °C

Up to 90% RH at 65 °C non-condensing

Up to 4600 m (15,000 ft)

Other

Connector 1

Programming language

Safety and EMC compliance

Calibration interval

Warranty 1

N8481A/82A: N-type (male)

N8485A: 3.5 mm (male)

N8487A: 2.4 mm (male)

N8488A: 1.85 mm (male)

N8481B/82B: N-type (male)

N8481H/82H: N-type (male)

N8486AR: Waveguide lange UG-599/U

N8486AQ: Waveguide lange UG-383/U

Standard: SCPI code-compatible to E-Series sensors

Option CFT: SCPI code-compatible to 8480 Series sensors

IEC 61326-2002/EN 61326:1997+A1:1998+A3:2003

Canada: ICES-001:2004, ICES/NMB-001:2004

Australia/New Zealand: AS/NZS CISPR11:2004

1 year

3 years

1. See “Ordering Information” for available options

Length (L)

Height (H)

Width (W)


Ordering Information

Power sensors

Standard power sensors

N8481A

N8482A

N8485A

N8487A

N8488A

N8481B

N8482B

N8481H

N8482H

N8486AR

N8486AQ

Other sensor options

Option CFT

N8485A-033

Standard-shipped

Shipped as standard with every power sensor

Description

Standard N8481A model with EEPROM feature





Standard N8481B model with EEPROM feature

Standard N8482B model with EEPROM feature

Standard N8481H model with EEPROM feature

Standard N8482H model with EEPROM feature

Standard N8486AR model with EEPROM feature

Standard N8486AQ model with EEPROM feature

Frequency range

10 MHz to 18 GHz

100 kHz to 6 GHz

10 MHz to 26.5 GHz

50 MHz to 50 GHz

10 MHz to 67 GHz

10 MHz to 18 GHz

100 kHz to 6 GHz

10 MHz to 18 GHz

100 kHz to 6 GHz

26.5 to 40 GHz

33 to 50 GHz

Power range

–35 to +20 dBm

–35 to +20 dBm

–35 to +20 dBm

–35 to +20 dBm

–35 to +20 dBm

–5 to +44 dBm

–5 to +44 dBm

–15 to +35 dBm

–15 to +35 dBm

–35 to +20 dBm

–35 to +20 dBm

Description

N8480 sensor without the calibration factor table stored in the EEPROM. Calibration factor data is provided on the label attached to the power sensor

N8485A model with EEPROM feature with extended frequency range, 10 MHz to 33 GHz

Description

–

Certiicate of Calibration

– Operating and Service Guide

–

Product Reference CD (contains Migration Guide, Operating and Service Guide, irmware upgrades for EPM, EPM-P, and P-Series power meters, and upgrade procedures)


Ordering Information (continued)

Accessories, calibration and documentation options

Connectors

Option 100

Option 200

Description

– Type-N (male) connector for

N8481A/N8482A/N8481B/N8482B/N8481H/N8482H

– 3.5 mm (male) connector for N8485A



– Waveguide connector for N8486AR/N8486AQ

APC-7 (male) connector for N8481A only

Cables

11730A

11730B

11730C

11730D

11730E

11730F 1

E9288A

E9288B

E9288C

N1917A

N1917B

N1917C

Calibration

Option 1A7

Option A6J

Description

For EPM Series power meters: 1.5 m (5 ft), grey

For EPM Series power meters: 3 m (10 ft), grey




For EPM Series power meters: 61 m (200 ft), grey

*operates up to 45 °C

For EPM and EPM-P Series power meters: 1.5 m (5 ft), blue

For EPM and EPM-P Series power meters: 3 m (10 ft), blue

For EPM and EPM-P Series power meters: 10 m (31 ft), blue

For P-Series power meters: 1.5 m (5 ft)

For P-Series power meters: 3 m (10 ft)

For P-Series power meters: 10 m (31 ft)

Description

ISO 17025 calibration with test data

ANSI Z540 calibration with test data

Warranty Description

Option R-51B-001-3C

Return to Keysight Technologies Warranty - 3 years

Option R-51B-001-5C

Warranty Assurance Plan - Return to Keysight Technologies - 5 years

Documentation

Option OB1

Option ABJ

Description

English language Operating and Service Guide

Japanese localization Operating and Service Guide

1. Only applicable for E4418/19B power meters


Where Does the N8480 Fit in Keysight’s Average Power Sensors Offering?

Signal characteristics > CW

CW

Typical application examples >

Metrology lab

Modulated

Pulse/ averaged

Radar/ navigation

●

AM/FM proiled

Mobile radio

●

Wireless standards

TDMA

GSM

EDGE

NADC

IDEN

●

Average only

cdmaOne

Bluetooth

®

●

Average only

W-CDMA cdma2000 ®

●

Average only

802.11a/b/g

MCPA

HiperLan2

WiMAX

●

Average only

Themocouple sensors

8480A/B/H,

N8480A/B/H/R/Q,

8486A, N8486AR/AQ

Diode sensors

8480D, V8486A, W8486A

Diode sensors compensated for extended range

E4412A/3A

Two-path diode-stack sensors

E9300 Series

●

●

●

●

●

●

●

FM only

●

●

Average only

●

Average only

●

Average only

●

Average only

●

Average only

●

Average only

●

Average only

●

Average only


Where Does the N8480 Fit in Keysight’s Average Power Sensors Offering?

Peak-and-average power sensors

(breakdown by dynamic range)

Power

N1922A (30 MHz BW)

N1921A (30 MHz BW)

E9327A (5 MHz BW)

E9326A (1.5 MHz BW)

E9323A (5 MHz BW)

E9322A (1.5 MHz BW)

E9325A (300 kHz BW)

E9321A (300 kHz BW)

Average power sensors

(breakdown by dynamic range)

N848XB Series

–5 to +44 dBm

E930XB Series

–30 to +44 dBm

U200XB Series

–30 to +44 dBm

N848XH Series

–15 to +35 dBm

E930XA/H Series

–50 to +30 dBm

U200XH Series

–50 to +30 dBm

Power

N8481B

N8482B

E9300B

E9301B

U2001B

U2000B

N8481H

N8482H

E9300H

E9301H

E9300A

E9304A

U2002H

U2001H

U2000H

848XA Series

–30 to +20 dBm

8483A (75 ohm)

OPT-H25

OPT-H19

N8486AQ

N8486AR

V8486A W8486A

N848XA Series

–35 to +20 dBm

E930XA Series

–60 to +20 dBm

U200XA Series

–60 to +20 dBm

V3500A

–63 dBm to +20 dBm

E441XA Series

–70 to +20 dBm

N8487A

N8485A

N8481A

N8482A

E9300A

E9301A

E9304A

U2004A

U2002A

U2001A

U2000A

V3500A

E4413A

E4412A

8487D

OPT-H24

OPT-H18

OPT-33

OPT-H33

848XD Series

–70 to –20 dBm

8485D

8481D

Q8486D

R8486D

OPT-33

Frequency

Legend

■

N192x peak-and-average sensors

Compatible with P-Series power meters

■

E932x peak-and-average sensors

Compatible with EPM-P and P-Series power meters

Frequency

Legend

■

N848X average thermocouple sensor

■

848XD average diode sensor

■

848X thermocouple sensor

■

E441X 1-path diode CW-only sensor

■

E930X 2-path diode true-average sensor

■

U200X USB sensors

■

V3500A Handheld RF Power Meter


Compatible Power Meters

The N8480 Series power sensors perform accurate, repeatable average power measurements with the following power meters:

Keysight N1911A/12A P-Series power meters

– Single (N1911A) and dual (N1912A) channels

– High resolution color display

– 30 MHz video bandwidth

– 100 MSa/s continuous sampling rate

– Time-gated and free-run measurement modes

– Rise time, fall time, pulse width, time to positive occurrence, and time to negative occurrence measurements

–

Includes predeined conigurations for WiMAX, HSDPA, and DME

– GPIB, LAN, and USB interfaces

– Code-compatible with EPM-P and EPM Series power meters

– Optimized for peak power measurements and CCDF statistical analysis with the

P-Series power sensors

– Also compatible Compatible with all E-Series, N8480 Series, and 8480 Series power sensors

Keysight E4416A/17A EPM-P Series power meters

– Single (E4416A) and dual (E4417A) channels

– 5 MHz video bandwidth

– 20 MSa/s continuous sampling rate

– Time-gated and free-run measurement modes

–

Includes predeined conigurations for GSM, EDGE, NADC, iDEN, Bluetooth, IS-95

CDMA, W-CDMA, and cdma2000

– GPIB, RS-232/422 interfaces

– Code-compatible with EPM Series power meters

– Optimized for peak power measurements with the E9320 E-Series power sensors

– Also compatible with the E9300 and E4410 E-Series, 8480, and N8480 Series power sensors

Keysight N1913A/14A EPM Series power meters

– Single (N1913A) and dual (N1914A) channels

– Two optional USB channels available for four-channel measurements

– Frequency range of 9 kHz to 110 GHz

– Power range of –70 to +44 dBm (depending on the attached power sensor)

– Fast measurement speed of 400 readings/s

–

Industry’s irst color LCD screen for average power meters

–

USB and LAN/LXI-C connectivity on top of the standard GPIB

– Automatic frequency/power sweep measurements with the optional trigger IN/OUT feature

– Code-compatible with legacy E4418B/9B EPM Series, 436A, 437B, and 438A power meters (43X compatibility only with option N191xA-200)

– Optimized for average power measurements with the U2000, E9300 and E4410,

N8480, and 8480 Series power sensors

1. Note: The N8480 Series is also compatible with the E4418B/19B Series EPM power meters


Compatible Power Meters

To get your existing power meters up-and-running in supporting the N8480 Series, just download their irmware upgrades online at www.keysight.com > Technical Support > Drivers & Software > Firmware Update

Power meter

EPM Series power meters

EPM-P Series power meters

P-Series power meters

Model number

E4418B

E4419B

N1913A

N1914A

E4416A

E4417A

N1911A

N1912A

Compatible irmware revision

A1.09.01 and above

A2.09.01 and above

A.01.00 and above

A.01.00 and above

A1.05.01 and above

A2.05.01 and above

A.05.02 and above

A.05.02 and above

23 | Keysight | N8480 Series Thermocouple Power Sensors - Data Sheet myKeysight www.keysight.com/find/mykeysight

A personalized view into the information most relevant to you.

www.axiestandard.org

AdvancedTCA ®

Extensions for Instrumentation and Test (AXIe) is an open standard that extends the AdvancedTCA for general purpose and semiconductor test. Keysight is a founding member of the AXIe consortium.

ATCA ® , AdvancedTCA ® , and the ATCA logo are registered US trademarks of the PCI Industrial Computer Manufacturers Group. www.lxistandard.org

LAN eXtensions for Instruments puts the power of Ethernet and the

Web inside your test systems. Keysight is a founding member of the LXI consortium.

www.pxisa.org

PCI eXtensions for Instrumentation (PXI) modular instrumentation delivers a rugged, PC-based high-performance measurement and automation system.

Three-Year Warranty www.keysight.com/find/ThreeYearWarranty

Keysight’s commitment to superior product quality and lower total cost of ownership. The only test and measurement company with three-year warranty standard on all instruments, worldwide.

Keysight Assurance Plans www.keysight.com/find/AssurancePlans

Up to five years of protection and no budgetary surprises to ensure your instruments are operating to specification so you can rely on accurate measurements.

www.keysight.com/go/quality

Keysight Technologies, Inc.

DEKRA Certified ISO 9001:2008

Quality Management System

Keysight Channel Partners www.keysight.com/find/channelpartners

Get the best of both worlds: Keysight’s measurement expertise and product breadth, combined with channel partner convenience.

WiMAX is a US trademark of the WiMAX Forum.

Bluetooth and the Bluetooth logos are trademarks owned by Bluetooth SIG, Inc., U.S.A. and licensed to Keysight Technologies.

cdma2000 is a US registered certification mark of the Telecommunications Industry

Association.

www.keysight.com/find/thermocouplesensor

For more information on Keysight

Technologies’ products, applications or services, please contact your local Keysight office. The complete list is available at: www.keysight.com/find/contactus

Americas

Canada

Brazil

Mexico

United States

Asia Paciic

Australia

China

Hong Kong

India

Japan

Korea

Malaysia

Singapore

Taiwan

Other AP Countries

(877) 894 4414

55 11 3351 7010

001 800 254 2440

(800) 829 4444

1 800 629 485

800 810 0189

800 938 693

1 800 112 929

0120 (421) 345

080 769 0800

1 800 888 848

1 800 375 8100

0800 047 866

(65) 6375 8100

Europe & Middle East

Austria

Belgium

Finland

France

Germany

Ireland

Israel

Italy

Luxembourg

Netherlands

Russia

Spain

Sweden

Switzerland

United Kingdom

0800 001122

0800 58580

0800 523252

0805 980333

0800 6270999

1800 832700

1 809 343051

800 599100

+32 800 58580

0800 0233200

8800 5009286

800 000154

0200 882255

0800 805353

Opt. 1 (DE)

Opt. 2 (FR)

Opt. 3 (IT)

0800 0260637

For other unlisted countries: www.keysight.com/find/contactus

(BP-09-23-14)

This information is subject to change without notice.

© Keysight Technologies, 2012 - 2014

Published in USA, November 14, 2014

5989-9333EN www.keysight.com

N8485A Data Sheet

Keysight Technologies

N8480 Series Thermocouple Power Sensors

Data Sheet

Introduction

Accurate, repeatable measurements

Calibration-easy testing

One sensor, WIDEST range

System integration can be dificult, but not with the N8480

Features

Warranted speciications

Characteristic speciications

Conditions

Frequency and dynamic power range

Damage level

Maximum SWR

Power linearity

Zero set, zero drift and measurement noise

Effects of averaging on noise:

Example:

Measurement noise calculation:

Switching point

N8481A/82A/85A/87A/88A and N8486AQ/AR power sensors

N8481B/82B power sensors

N8481H/82H power sensors

Power range in range setting

Settling time

Calibration factor and relection coeficient

Calibration factor uncertainty

Calibration factor uncertainty (continued)

Calibration factor uncertainty (continued)

Typical CF and SWR versus frequency

General speciications

Power sensors

Accessories, calibration and documentation options

Keysight N1911A/12A P-Series power meters

Keysight E4416A/17A EPM-P Series power meters

Keysight N1913A/14A EPM Series power meters

Related manuals

Agilent Technologies

N8481B

Keysight Technologies

N8482B