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Attenuation (db) – Atec Agilent-8490 Series User Manual

Page 4

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4

Connector type

Frequency range (GHz)

Measured SWR

1.0 to 1.35

Measured SWR

1.35 to 1.86

Male Type -N

dc to 12.4

12.4 to 18.0

±0.025

±0.031

±0.041

±0.050

Female Type -N

dc to 8.0

8.0 to 12.4

12.4 to 18.0

±0.025

±0.031

±0.042

±0.046

±0.063

±0.071

Male SMA

dc to 8.0

8.0 to 12.4

12.4 to 18.0

±0.031

±0.045

±0.077

±0.054

±0.084

±0.137

Female SMA

dc to 8.0

8.0 to 12.4

12.4 to 18.0

±0.054

±0.077

±0.122

±0.088

±0.132

±0.206

Male APC-3.5

dc to 8.0

8.0 to 12.4

12.4 to 18.0

±0.025

±0.031

±0.045

±0.041

±0.050

±0.067

Female APC-3.5

dc to 10

10 to 18

18 to 26.5

±0.020

±0.025

±0.035

±0.031

±0.037

±0.050

Table 1. SWR data uncertainties

Table 2. Coaxial attenuator calibration frequencies* (MHz)

100

4500

9000

13000

16750

500

5000

9500

13500

17000

1000

5500

10000

14000

17250

1500

6000

10500

14500

17500

2000

6500

11000

15000

17750

2500

7000

11500

15500

18000

3000

7500

12000

16000

3500

8000

12400

16250

4000

8500

12500

16500

(each 250 MHz

to 26.5 GHz

*dc to 12.4 GHz models include 26 frequencies, dc to 18 GHz

models include 42 frequencies, dc to 26.5 GHz models include
67 frequencies (2 to 26.5 GHz).

Table 3. Attenuation data uncertainties

Attenuation

(dB)

0.1 to 2.0 GHz

2 to 6 GHz

6 to 12.4 GHz

12.4 to 18.0 GHz

18.0 to 26.5 GHz

3

±0.07

±0.06

±0.07

±0.11

±.15

6

±0.07

±0.07

±0.07

±0.11

±.15

10

±0.08

±0.07

±0.08

±0.12

±.15

20

±0.09

±0.08

±0.09

±0.13

±.15

30

±0.12

±0.11

±0.12

±0.15

±0.18

40

±0.15

±0.14

±0.15

±0.21

±0.25

50

±0.23

±0.23

±0.23

±0.34

n/a

60

±0.50*

±0.48*

±0.90*

±0.90*

n/a

8491, 8492 and 8493 Attenuation data uncertainty

(dB)

*The uncertainties noted represent 99.7% probability values.