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Power

Sensor

Measurement Speed (rds/s)

E4418/4419B N1913/1914A

Normal x2 Fast Normal x2 Fast

848x

20 40 - 20 40 -

N848x

20 40 - 20 40 -

E930x

20 40 200 20 40 400

E441x

20 40 200 20 40 400

U2000 Series

- - - 20 40 110

Table 3. The measurement speed of power sensors that are supported by N1913/1914A and

E4418/4419B

High speed measurement is essential in high-volume manufacturing of RF and

microwave components and systems. Faster test time will improve the productivity

by enabling users to test more devices in a shorter time.

Measurement time can be improved by switching the measurement speed.

There are three types of measurement speed settings: NORMAL (by default),

DOUBLE (x2), and FAST. In NORMAL and DOUBLE modes, full sensor functionality

is available. In FAST mode, averaging limits are disabled and set to 1, which

allows fast measurement with slight degradation of measurement accuracy at

lower power.

Because of the SCPI backward compatibility, the same SCPI command for fast

measurement mode can be used between the N1913/1914A and the E4418/4419B.

Therefore, the N1913/1914A can be used directly by current E4418/4419B users

without needing software recoding. For example, using the SCPI command of

SENS1:SPE 200 sets the measurement speed on Channel 1 to 200 readings/

second (rds/s). But in reality, the N1913/1914A can achieve up to 400 rds/s in fast

measurement mode while the E4418/4419B achieves 200 rds/s only.

Fast Measurement

Speed

1 2 3 4 5 6 7 8 9 10 11 12 13 14

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