Load Measurements

The table below shows the measurement results of the SARK-110 with different test loads at different test frequencies:

LOAD MEASUREMENTS

Load (Ohms)

Freq (MHz)

Impedance

50

3.5

50 + j0

14

50 + j0

28

50.1 + j0

50

50.1 + j0.1

144

50.2 + j0.2

5

3.5

5 + j0.2

14

4.9 + j0.4

28

4.9 + j0.7

50

4.9 + j1.2

144

4.9 + j3.0

25

3.5

25 + j0.2

14

25 + j0.3

28

25.2 + j0.6

50

24.9 + j0.3

144

25.1 + j1.5

100

3.5

101.4 - j0.2

14

101.4 - j0.9

28

101.7 – j2.0

50

101.6 – j3.4

144

101.2  - j8.8

200

3.5

202.2 - j1.5

14

202.4 – j4.3

28

202.7 – j8.0

50

203 - j13.5

144

198 – j36.2

500

3.5

502.7 – j10

14

501.3 – j40.8

28

496 – j79

50

476 – j131

1000

3.5

1004 – j27

14

991 - j142

28

940 – j272

50

812 – j425

50 - j50

Z = 70.7

3.5

49.8 - j50

14

49.6 - j54

28

49.9 - j50.4

50 + j50

Z = 70.7

3.5

49.9 + j52

14

49.9 + j52

28

49.9 + j53

Test Setup

The tests loads were connected to the SARK-110 using the BNC to MCX adaptor pigtail. The SARK-110 was calibrated using the OSL calibration procedure.
 

Test Loads

The test loads were built using standard components purchased from DigiKey and implemented in BNC connectors. The components were taken directly from the package and were not screened using lab equipment.