Epm-p power meter specifications, Single sensor dynamic range, Display units – Atec Agilent-E9320 Series User Manual

Page 2: Video bandwidth/ dynamic range optimization

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EPM-P power meter specifications

Specifications describe the instrument’s warranted perfor-
mance and apply after a 30 minute warm-up. These speci-
fications are valid over its operating and environmental
range unless otherwise stated and after performing a zero
and calibration procedure.

Supplemental characteristics are intended to provide addi-
tional information; useful in applying the instrument by
giving typical (expected), but not warranted performance
parameters. These characteristics are shown in italics or
labeled as ‘typical’, ‘nominal’ or ‘approximate’.

Measurement uncertainties information can be found in,
Fundamentals of RF and Microwave Power Measurements
- Application Note 64-1
, literature number 5965-6630E.

Compatibility, the EPM-P series power meters operate
with the E-series E9320 family of power sensors for peak,
average and time-gated power measurements. The EPM-P
series also operates with the existing 8480 and N8480
series, E-series CW and the E9300 range of power sensors
for average power measurements. For specifications per-
taining to the 8480 and E-series CW and E9300 power sen-
sors, please refer to the EPM Series Power Meters, E-
Series and 8480 Series Power Sensors
, Technical
Specifications, literature number 5965-6382E. For specifi-
cations pertaining to the N8480 series power sensors, please
refer to the N8480 Series Thermocouple Power Sensors,
Technical Specifications, literature number 5989-9333EN.

Measurement modes, the EPM-P series power meters
have two measurement modes:

1. Normal mode (default mode using E9320 sensors)

for peak, average and time-related measurements,
and

2. Average only mode. This mode is primarily for

average power measurements on low-level signals,
when using E9320 sensors, and is the mode used
with 8480 and N8480 series sensors, E-series CW
sensors and E-series E9300 sensors.

Frequency range:

9 kHz to 110 GHz,
sensor dependent

Power range:

-70 to +44 dBm,
sensor dependent

Single sensor dynamic range

E-series E9320 peak and average power sensors:

70 dB maximum (normal mode);
85 dB maximum (average only mode)

E-series CW power sensors: 90 dB
E-series E9300 average power sensors:

80 dB maximum

8480 series sensors:

50 dB maximum

N8480 series sensors:

55 dB maximum

Display units

Absolute:

Watts or dBm

Relative:

Percent or dB

Display resolution:

Selectable resolution of 1.0,
0.1, 0.01, 0.001 dB in loga-
rithmic mode, or 1 to 4 sig-
nificant digits in linear mode.

Offset range:

±100 dB in 0.001 dB incre-
ments, to compensate for
external loss or gain

Video bandwidth:

5 MHz (set by meter and is
sensor dependent)

Note that the video bandwidth represents the ability of
the power sensor and meter to follow the power envelope
of the input signal. The power envelope of the input signal
is, in some cases, determined by the signal's modulation
bandwidth, and hence video bandwidth is sometimes
referred to as modulation bandwidth.

Video bandwidth/
dynamic range optimization

The power measurement system, comprising the sensor
and meter, has its maximum video bandwidth defined by
the E9320 sensor. To optimize the system’s dynamic range
for peak power measurements, the video bandwidth in
the meter can be set to High, Medium and Low, as
detailed in the following table. The filter video bandwidths
stated in the table are not the 3 dB bandwidths as the
video bandwidths are corrected for optimal flatness. Refer
to figures 6 to 8 for information on the sensor’s peak flat-
ness response. A filter OFF mode is also provided.

Table 1. Video bandwidth versus peak power dynamic range

Sensor model

Video bandwidth/maximum peak power dynamic range

OFF

High

Medium

Low

E9321A

300 kHz/

300 kHz/

100 kHz/

30 kHz/

E9325A

-40 dBm to +20 dBm

-42 dBm to +20 dBm

-43 dBm to +20 dBm

-45 dBm to +20 dBm

E9322A

1.5 MHz/

1.5 MHz/

300 kHz/

100 kHz/

E9326A

-36 dBm to +20 dBm

-37 dBm to +20 dBm

-38 dBm to +20 dBm

-39 dBm to +20 dBm

E9323A

5 MHz/

5 MHz/

1.5 MHz/

300 kHz/

E9327A

-32 dBm to +20 dBm

-32 dBm to +20 dBm

-34 dBm to +20 dBm

-36 dBm to +20 dBm

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