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Precision Mismatch, page 1 of 2

7mm, 14mm
Type N and TNC Connectors

Frequency Range

. . . . . . . .

DC - 18 GHz

Nominal VSWR

. . . . . . . .

See charts

VSWR Accuracy

. . . . . . . .

See charts

Calibration:
Data Provided
Impedance Reference


. . . . . . . .
. . . . . . . .


2 to 18 GHz, 1 GHz steps

50 ohms

Power Handling

. . . . . . . .

1 watt average, 1 kW peak

2561A
2562A
2611D

7mm Standard Mismatches

Nominal
VSWR

Model

Accuracy

Resistance
(ohms)

DC - 8.0 GHz

8.0 - 12.4 GHz

12.4 - 18.0 GHz

1.05

2611A

±0.05

±0.05

±0.07

47.6

1.10

2611B

45.5

1.20

2611C

±0.06

±0.09

41.7

1.30

2611D

±0.07

±0.10

38.5

1.50

2611E

±0.06

±0.08

±0.15

33.3

1.75

2611F

±0.08

±0.10

±0.17

28.6

2.00

2611G

±0.10

±0.12

±0.20

25.0

14mm Standard Mismatches

Nominal
VSWR

Model

Accuracy

Resistance
(ohms)

DC - 1.0 GHz

1.0 - 4.0 GHz

4.0 - 8.5 GHz

1.10

2411B

±0.02

±0.03

±0.04

45.5

1.20

2411C

±0.03

±0.04

±0.05

41.7

1.30

2411D

±0.04

±0.05

±0.06

38.5

1.50

2411E

±0.05

±0.06

±0.07

33.3

Type N Standard Mismatches

Nominal
VSWR

Model

Accuracy

Resistance
(ohms)

Female

Male

DC - 8.0 GHz

8.0 - 12.4 GHz

12.4 - 18.0 GHz

1.05

2561A

2562A

±0.05

±0.05

±0.08

47.6

1.10

2561B

2562B

±0.06

±0.06

45.5

1.20

2561C

2562C

±0.07

±0.10

41.7

1.30

2561D

2562D

±0.08

±0.012

38.5

1.50

2561E

2562E

±0.08

±0.09

±0.17

33.3

1.75

2561F

2562F

±0.10

±0.11

±0.19

28.6

2.00

2561G

2562G

±0.12

±0.12

±0.22

25.0

TNC Standard Mismatches

Nominal
VSWR

Model

Accuracy

Resistance
(ohms)

Female

Male

DC - 10 GHz

10 - 18.0 GHz

1.20

8611C
8612C

±0.08

±0.15

41.7

1.30

8611D
8612D

±0.09

±0.15

38.5

1.50

8611E
8612E

±0.10

±0.18

33.3

1.75

8611F
8612F

±0.13

±0.20

28.6

2.00

8611G
8612G

±0.15

±0.25

25.0

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