Agilent E4416A Data Sheet

Data Sheet

Agilent

E4416A/E4417A EPM-P Series
Power Meters and E-Series E9320
Peak and Average Power Sensors

2

EPM-P power meter specifications

Specifications describe the instrument’s warranted per­formance and apply after a 30 minute warm-up. These
specifications 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
additional 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
series, E-series CW and the E9300 range of power
sensors for average power measurements. For specifica­tions pertaining to the 8480 and E-series CW and
E9300 power sensors, please refer to the, EPM Series

Power Meters E-Series and 8480 Series Power
Sensors, Technical Specifications, literature number

5965-6382E.

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 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

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 band-
width in the meter can be set to High, Medium and
Low, as detailed in the following table. The filter video
bandwidths stated i n 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 flatness 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

3

Accuracy

Instrumentation

Please add the corresponding power sensor linearity
percentage; see Tables 6a and 6b for the E9320 sen­sors.

Average only mode:
Absolute

Logarithmic: ±0.02 dB
Linear: ±0.5%

Relative Logarithmic: ±0.04 dB

Linear: ±1.0%

Normal mode:
Time Base Accuracy 0.01%

1 mW power reference

Power output: 1.00 mW (0.0 dBm).

Factory

set to ±0.4% traceable to the
National Physical Laboratories
(NPL), UK

2

Accuracy: For two years

±0.5% (23 ± 3 °C)
±0.6% (25 ± 10 °C)
±0.9% (0 to 55 °C)

Frequency: 50 MHz nominal

SWR: 1.06 maximum (1.08 maximum

for Option E41xA-003)

Connector type: Type N (f), 50 ohms

Measurement characteristics:

Measurements: Average power

Peak power
Peak-to- average ratio
Measurements between two

time offsets (time-gating)

Averaging: Averaging over 1 to 1024 read-

ings is available for reducing noise

Measurement speed (GPIB)

Over the GPIB, three measurement speeds are available
(normal, x 2 and fast). The typical maximum speed is
shown in the table below.

Table 2. Measurement speed for different sensor types

Channel functions A, B, A/B, B/A, A-B, B-A and

Relative

Storage registers 10 instrument states can be

saved via the Save/Recall

menu.

Predefined setups

For common wireless standards (GSM900, EDGE, NADC,
iDEN, Bluetooth, IS-95 CDMA, W-CDMA and
cdma2000), predefined setups are provided.

Calibration temperature1Temperature
±5 °C 0 to 55 °C

Absolute accuracy (log) ±0.04 dB ±0.08 dB
Absolute accuracy (linear) ±0.8% ±1.7%
Relative accuracy (log) ±0.08 dB ±0.16 dB
Relative accuracy (linear) ±1.6% ±3.4%

1. Power meter is within ±5 °C of its calibration temperature.

2. National metrology institutes of member states of the Metre Convention, such as the
National Institute of Standards and Technology in the USA, are signatories to the
ComitÈ International des Poids et Mesures Mutual Recognition Arrangement. Further
information is available from the Bureau International des Poids et Mesures, at

http://www.bipm.fr/

3. Fast speed is not available for 8480 series sensors.

4. Maximum measurement speed is obtained by using binary output in free run trigger.

5. For E9320 sensors, maximum speed is achieved using binary output in free run
acquisition.

Sensor type Measurement speed

(readings/second)

Normal x 2 Fast

3,4

E-Series E9320 Average only mode 20 40 400
peak and average
sensors Normal mode

5

20 40 1000

E-Series CW and E9300 average power 20 40 400
sensors

8480 Series sensors 20 40 N.A.

4

Trigger

Sources: Internal, External TTL,

GPIB, RS232/422,

Time resolution: 50 ns

Delay range: ±1.0 s

Delay resolution: 50 ns for delays < ±50 ms;

otherwise 200 ns

Hold-off:

Range: 1 us to 400 ms
Resolution: 1% of selected value

(minmum of 100 ns)

Internal trigger:

Range: -20 to +20 dBm

Level accuracy: ±0.5 dB
Resolution: 0.1 dB
Latency: 500 ns ± 100 ns

Latency is defined as the delay between the applied
RF crossing the trigger level and the meter switching
into the triggered state.

External trigger range: High > 2.0 V, Low < 0.8 V;

BNC connector; rising or falling edge triggered; input
impedance > 1 kW.

Trigger out: Output provides TTL compatible levels

(high > 2.4 V, low < 0.4 V) and uses a BNC connec-
tor

Sampling characteristics

Sampling rate: 20 Msamples/second

Sampling technique: Continuous sampling

Rear panel inputs/outputs

Recorder output(s): Analog 0 to 1 V, 1 kW output

impedance, BNC connector. Two outputs are available
on E4417A (channels A and B).

Remote input/output:

TTL output: used to signal when mea

surement has exceeded a
defined limit.

TTL input: initiates zero and calibration

cycle.

Connector type: RJ-45 series shielded modu

lar jack assembly.

TTL output: high = 4.8 V max;

low = 0.2 V max.

TTL input: high = 3.5 V min, 5 V max;

low = 1 V max, -0.3 V min.

RS-232/422 interface: Serial interface for commu-

nication with an external controller. Male plug 9-pin
D-subminiature connector.

Trigger in: Accepts a TTL signal for initiating mea-

surements, BNC connector.

Trigger out: Outputs a TTL signal for synchronizing

with external equipment, BNC connector.

Ground: Binding post accepts 4 mm plug or bare

wire connection

Line power

Input voltage range 85 to 264 Vac,

automatic selection

Input frequency range 47 to 440 Hz
Power requirement approximately 50 VA

(14 Watts)

Remote programming

Interface: GPIB interface operates to IEEE 488.2

and IEC-625. RS-232 and RS-422 serial interfaces
supplied as standard

Command language: SCPI standard interface

commands

GPIB compatibility: SH1, AH1, T6, TE0, L4, LE0,

SR1, RL1, PP1, DC1, DT1, C0.

Environmental specifications

Operating environment

Temperature 0° to 55 °C
Maximum humidity 95% at 40 °C,

(non-condensing)

Minimum humidity 15% at 40 °C
Maximum altitude 3,000 meters

(9,840 feet)

Storage conditions:

Storage temperature -20 to +70°C
Non-operating maximum
humidity: 90% at 65 °C

(non-condensing)

Non-operating maximum
altitude: 15,420 meters

(50,000 feet)

Regulatory information

Electromagnetic compatibility: This product

conforms with the protection requirements of
European Council Directive 89/336/EEC for
Electromagnetic Compatibility (EMC). The conformity
assessment requirements have been met using the
technical Construction file route to compliance, using
EMC test specifications EN 55011:1991 (Group 1,
Class A) and EN 50082-1:1992. In order to preserve
the EMC performance of the product, any cable
which becomes worn or damaged must be replaced
with the same type and specification.

Product safety: This product conforms to the

requirements of European Council Directive
73/23/EEC, and meets the following safety standards:

IEC 61010-1(1990) + A1 (1992) + A2 (1995) /
EN 61010-1 (1993)
IEC 825-1 (1993) / EN 60825-1 (1994)
Canada / CSA C22.2 No. 1010.1-93

5

Physical specifications

Dimensions: The following dimensions exclude front

and rear panel protrusions: 212.6 mm W x 88.5 mm
H x 348.3 mm D (8.5 in x 3.5 in x 13.7 in)

Weight

Net:

E4416A: 4.0 kg (8.8 lbs) approximate
E4417A: 4.1 kg (9.0 lbs) approximate

Shipping:

E4416A: 7.9 kg (17.4 lbs) approximate
E4417A: 8.0 kg (17.6 lbs) approximate

Ordering information

Accessories supplied

Power sensor cable
E9288A 1.5 meter (5 ft). One per E4416A, two

per E4417A

Power cord

One 2.4 meter (7.5 ft) cable. Power plug matches
destination requirements.

ANSI/NCSL Z540-1-1994 certificate of calibration

supplied as standard.

Installation guide

Users Guide and Programming Guide (CD-ROM for­mat)

Power meter options

Connectors
E441xA-002 Parallel rear panel sensor input

connector(s) and front panel reference
calibrator connector

E441xA-003 Parallel rear panel sensor input

connector(s) and rear panel reference
calibrator connector

Calibration documentation
E441xA-A6J ANSI Z540 compliant calibration test

data including measurement uncertain
ties

Documentation

A hard copy of the Installation Guide and CD1 of the
English language User’s Guide and Programming
Guide is provided with the EPM-P power meter as

standard. A selection can be made to delete the hard
copy.

E441xA-0B0 Delete manual set

Additional documentation

Selections can be made for the localization of the
User’s Guide, an English language Programming Guide
and Service Manual.

E441xA-0B3 English language Service Manual
E441xA-0BK English language manual set (hardcopy

User’s Guide and English Programming
Guide)

E441xA-ABD German localization (hard copy User’s

Guide and English Programming Guide)

E441xA-ABE Spanish localization (hard copy User’s

Guide and English Programming Guide)

E441xA-ABF French localization (hard copy User’s

Guide and English Programming Guide)

E441xA-ABJ Japanese localization (hard copy User’s

Guide and English Programming Guide)

E441xA-ABZ Italian localization (hard copy User’s

Guide and English Programming Guide)

Power sensor cables

E441xA-004 Delete p ower sensor cable

For operation with the E9320 power sensors:

E9288A Power sensor cable, length 5 ft (1.5 m)
E9288B Power sensor cable, length 10 ft (3 m)
E9288C Power sensor cable, length 31 ft (10 m)

Note: The E9288A, B, and C sensor cables will also
operate with 8480 and E-series power sensors.

For operation with 8480, E-series CW and E9300
power sensors:

11730A Power sensor and SNS noise sourc e

cable, length 5 ft (1.5 m)

11730B Power sensor and SNS noise source

cable, length 10 ft (3 m)

11730C Power sensor and SNS noise source

cable, length 20 ft (6.1 m)

11730D Power sensor cable, length 50 ft (15.2

m)

11730E Power sensor cable, length 100 ft (30.5

m)

11730F Power sensor cable, length 200 ft (61.0

m)

Other sensor cable lengths can be supplied on request.

Accessories

E441xA-908 Rack mount kit (one instrument)
E441xA-909 Rack mount kit (two instruments)
34131A Transit case for half-rack 2U high instru-

ments

34141A Yellow soft carr y / operating case
34161A Accessory pouch

Service options

Warranty

Included with each EPM-P series power meter is a
standard 36-month, return- to- Agilent warranty and
service plan. For warranty and service of 5 years,
please order 60 months of R-51B.

1. CD includes EPM-P analyzer software.

6

R-51B Return- to-Agilent warranty and service

plan

Calibration

1

For 3 years, order 36 months of the appropriate cal­ibration plan shown below. For 5 years, specify 60
months.

R-50C-001 Standard calibration plan
R-50C-002 Standard compliant calibration plan

E-series E9320 power sensor
specifications

The E9320 peak and average power sensors are
designed for use with the EPM-P series power
meters. The E9320 sensors have two measurement
modes:

Normal mode (default mode for E9320 sensors) for
peak, average and time-related measurements

Average only mode is designed primarily for average
power measurements on low-level signals. This mode
is the only mode used with 8480 series sensors, E
series CW sensors and E-series E9300 sensors.

The following specifications are valid after zero and
calibration of the power meter.

Note: E9320 power sensors MUST be used with an
E9288A, B or C cable.

Table 3. Sensor specifications

Sensor

model

E9321A

E9325A

E9322A

E9326A

E9323A

E9327A

Video

bandwidth

300 kHz

1.5 MHz

5 MHz

Frequency range

50 MHz to 6 GHz

50 MHz to 18 GHz

50 MHz to 6 GHz

50 MHz to 18 GHz

50 MHz to 6 GHz

50 MHz to 18 GHz

Power range

Average only mode Normal mode

2

-65 dBm to +20 dBm -50 dBm to +20 dBm

-60 dBm to +20 dBm -45 dBm to +20 dBm

-60 dBm to +20 dBm -40 dBm to +20 dBm

Maximum power

+23 dBm average;
+30 dBm peak
(< 10 msec duration)

Connector

type

Type N (m)

1. Options not available in all countries.

2. For average power measurements, free run acquisition.

7

The E9320 power sensors have two measurement
ranges (lower and upper) as detailed in Table 4.

Table 4. Lower and upper measurement ranges

Lower range
(min. power)

Lower range
(max. power)
Lower to upper
auto range point

Upper to lower
auto range point

Upper range
(min. power)

Upper range
(max. power)

E9321A/E9325A

Normal Average only

-50 dBm -65 dBm

+0.5 dBm -17.5 dBm

1

-9.5 dBm -18.5 dBm

-35 dBm -50 dBm

+20 dBm +20 dBm

1

E9322A/E9326A

Normal Average only

-45 dBm -60 dBm

-5 dBm -13.5 dBm

1

-15 dBm -14.5 dBm

-35 dBm -45 dBm

+20 dBm +20 dBm

1

E9323A/E9327A

Normal Average only

-40 dBm -60 dBm

-5 dBm -10.5 dBm

1

-15 dBm -11.5 dBm

-30 dBm -35 dBm

+20 dBm +20 dBm

1

1. Applies to CW and constant amplitude signals only above –20 dBm.

Table 5. Power sensor maximum SWR

Sensor model

E9321A,
E9325A

E9322A,
E9326A

E9323A,
E9327A

Maximum SWR (< = 0 dBm)

50 MHz to 2 GHz: 1.12
2 GHz to 10 GHz: 1.16
10 GHz to 16 GHz: 1.23
16 GHz to 18 GHz: 1.28

50 MHz to 2 GHz: 1.12
2 GHz to 12 GHz: 1.18
12 GHz to 16 GHz: 1.21
16 GHz to 18 GHz: 1.27

50 MHz to 2 GHz: 1.14
2 GHz to 16 GHz: 1.22
16 GHz to 18 GHz: 1.26

Figure 2. Typical SWR for the E9322A and E9326A sensors at various power
levels

Figure 1. Typical SWR for the E9321A and E9325A sensors at various power
levels

Figure 3. Typical SWR for the E9323A and E9327A sensors at various power
levels

8

Sensor linearity

If the sensor temperature changes after calibration, and

the meter and sensor is not re-calibrated, then the fol-

lowing additional linearity errors should be added to
the linearity figures in Tables 6a and 6b.

Figure 5 shows the typical uncertainty in making a
relative power measurement, using the same power
meter channel and the same power sensor to obtain
the reference and the measured values. It also assumes
that negligible change in frequency and mismatch error
occurs when transitioning from the power level used as
the reference to the power level measured.

Table 6a. Power sensor linearity, normal mode
(upper and lower range).

Sensor model Temperature Temperature

( 25 ± 10 °C) (0 to 55 °C)

E9321A and E9325A ±4.2% ±5.0%
E9322A and E9326A ±4.2% ±5.0%
E9323A and E9327A ±4.2% ±5.5 %

Table 6b. Power sensor linearity, average only mode
(upper and lower range).

Sensor model Temperature Temperature

( 25 ± 10 °C) (0 to 55 °C)

E9321A and E9325A ±3.7% ±4.5%
E9322A and E9326A ±3.7% ±4.5%
E9323A and E9327A ±3.7% ±5.0 %

Table 6c. Additional linearity error (normal and average only modes).

Sensor model Temperature Temperature

( 25 ± 10 °C) (0 to 55 °C)

E9321A and E9325A ±1.0% ±1.0%
E9322A and E9326A ±1.0% ±1.5%
E9323A and E9327A ±1.0% ±2.0 %

Figure 4. Typical power linearity at 25 °C for the E9323A and
E9327A 5 MHz bandwidth sensors, after zero and calibration, with
associated measurement uncertainty.

Power range –30 to –20 to –10 to 0 to +10 to

–20 dBm –10 dBm 0 dBm +10 dBm +20 dBm

Measurement ±0.9% ±0.8% ±0.65% ±0.55% ±0.45%
uncertainty

Figure 5. Relative mode power measurement linearity with an
EPM-P series power meter, at 25 °C (typical).

+20 dBm

-60 dBm

-65 dBm

-60 dBm

-65 dBm

20 dBm

0 dBm

0 dBm

±

2 %

±

2 %

±

4.0 %

±

4.0 %

9

Peak flatness

The peak flatness is the flatness of a peak-to-average
ratio measurement for various tone-separations for an
equal magnitude two-tone RF input. Figures 6, 7 and 8
refer to the relative error in peak- to-average measure­ment as the tone separation is varied. The measure­ments were per- formed at –10 dBm average power
using an E9288A sensor cable (1.5 m).

Calibration Factor (CF) and
Reflection Coefficient (Rho)

Calibration Factor and Reflection Coefficient data are
provided at frequency intervals on a data sheet includ­ed with the power sensor. This data is unique to each
sensor. If you have more than one sensor, match the
serial number on the data sheet with the serial num­ber of the power sensor you are using. The CF cor­rects for the frequency response of the sensor. The
EPM-P series power meter automatically reads the CF
data stored in the sensor and uses it to make correc­tions.

For power levels greate r than 0 dBm, add to the cali­bration factor uncertainty specification:
±0.1%/dB (for E9321A and E9325A sensors),
±0.15%/dB (for E9322A and E9326A sensors) and
±0.2%/dB (for E9323A and E9327A sensors).

Reflection Coefficient (Rho) relates to the SWR accord­ing to the formula:

SWR = (1 + Rho) / (1 – Rho)

Maximum uncertainties of the CF data are listed in
Table 7. The uncertainty analysis for the calibration of
the sensors was done in accordance with the ISO
Guide. The uncertainty data, reported on the calibra­tion certificate, is the expanded uncertainty with a
95% confidence level and a coverage factor of 2.

Figure 6. E9321A and E9325A Error in peak-to-average measurements for a
two-tone input (high, medium, low and off filters).

Figure 7. E9322A and E9326A error in peak-to-average measurements for a
two-tone input (high, medium, low and off filters).

Figure 8. E9323A and E9327A error in peak-to-average measurements for a
two-tone input (high, medium, low and off filters).

Table 7. Calibration factor uncertainty at 0.1 mW (-10 dBm).

Frequency

50 MHz
100 MHz
300 MHz
500 MHz
800 MHz

1.0 GHz

1.2 GHz

1.5 GHz

2.0 GHz

3.0 GHz

4.0 GHz

5.0 GHz

6.0 GHz

7.0 GHz

8.0 GHz

9.0 GHz

10.0 GHz

11.0 GHz

12.0 GHz

12.4 GHz

13.0 GHz

14.0 GHz

15.0 GHz

16.0 GHz

17.0 GHz

18.0 GHz

Uncertainty (%)

(25 ±10°C)

Reference

±1.8
±1.8
±1.8
±1.8
±2.1
±2.1
±2.1
±2.1
±2.1
±2.1
±2.1
±2.1
±2.3
±2.3
±2.3
±2.3
±2.3
±2.3
±2.3
±2.3
±2.5
±2.5
±2.5
±2.5
±2.5

Uncertainty (%)

(0 to 55°C)

Reference

±2.0
±2.0
±2.0
±2.0
±2.3
±2.3
±2.3
±2.3
±2.3
±2.3
±2.3
±2.3
±2.5
±2.5
±2.5
±2.5
±2.5
±2.5
±2.5
±2.5
±2.8
±2.8
±2.8
±2.8
±2.8

Zero set

This specification applies to a ZERO performed when
the sensor input is not connected to the POWER REF.

Zero drift and measurement noise

Effect of averaging on noise: Averaging over 1 to
1024 readings is available for reducing noise. Table 9
provides the measurement noise for a particular sen­sor. Use the noise multipliers in Table 10, for the
appropriate speed (normal or x 2) or measurement
mode (normal or average only) and the number of
averages, to determine the total measurement noise
value.

In addition, for x 2 speed (in normal mode) the total
measurement noise should be multiplied by 1.2, and
for fast speed (in normal mode), the multiplier is 3.4.

Note that in fast speed, no additional averaging is

implemented.

Example:
E9321A power sensor, number of averages = 4, free
run acquisition, normal mode, x 2 speed.
Measurement noise calculation:

(< 6 nW x 0.88 x 1.2) = < 6.34 nW

Effect of video bandwidth setting: The noise per

sample is reduced by applying the meter video band­width reduction filter setting (High, Medium or Low).
If averaging is implemented, this will dominate any
effect of changing the video bandwidth.

Example:
E9322A power sensor, triggered acquisition, video
bandwidth = High.
Noise per sample calculation:

(< 180 nW x 0.80) = < 144 nW

Effect of time-gating on measurement noise

The measurement noise will depend on the time gate
length, over which measurements are made. Effectively
20 averages are carried out every 1 us of gate length.

Table 8. Zero set

Sensor model Zero set Zero set

(normal mode) (average only mode)

E9321A, E9325A 5 nW 0.17 nW
E9322A, E9326A 19 nW 0.5 nW
E9323A, E9327A 60 nW 0.6 nW

Table 9. Zero drift and measurement noise.

Sensor

model

E9321A
E9325A

E9322A
E9326A

E9323A
E9327A

Zero drift

1

Normal Average only

mode mode

< ±5 nW < ±60 pW

< ±5 nW < ±100 pW

< ±40 nW < ±100 pW

Measurement noise

2

Normal Normal Average only

mode

3

mode

4

mode

< 6 nW < 75 nW < 165 pW

< 12 nW < 180 nW < 330 pW

< 25 nW < 550 nW < 400 pW

1. Within 1 hour after zero set, at a constant temperature, after a 24 hour warm-up of the power meter.

2. Measured over a one-minute interval, at a constant temperature, two standard deviations, with averaging set to 1
(for normal mode), 16 (for average only mode, normal speed) and 32 (for average only mode, x 2 speed).

3. In free run acquisition mode.

4. Noise per sample, video bandwidth set to OFF with no averaging (i.e. averaging set to 1) - see the note “Effect of
Video Bandwidth Setting” and Table 11.

Table 10. Noise multipliers

Mode

Average

-only

Normal

Number of
averages

Noise multiplier

(normal speed)

Noise multiplier

(x 2 speed)

Noise multiplier

(normal speed;
free run acquisition)

1

5.5

6.5

1.0

2

3.89

4.6

0.94

4

2.75

3.25

0.88

8

1.94

2.3

0.82

16

1.0

1.63

0.76

32

0.85

1.0

0.70

64

0.61

0.72

0.64

128

0.49

0.57

0.58

256

0.34

0.41

0.52

512

0.24

0.29

0.46

1024

0.17

0.2

0.40

Table 11. Effect of video bandwidth on noise per sample.

Sensor

E9321A
E9325A

E9322A
E9326A

E9323A
E9327A

Low

0.32

0.50

0.40

Medium

0.50

0.63

0.63

High

0.63

0.80

1.0

Noise multipliers

10

11

Settling times

Average-only mode:

In normal and x 2 speed, manual filter, 10 dB decreasing power
step refer to Table 12.

In fast speed, within the range –50 to +20 dBm, for a 10 dB
decreasing power step, the settling time is 10 ms (for the E4416A)
and 20 ms (for the E4417A).

When a power step crosses the power sensor’s auto-range switch point,
add 25 ms.

Normal mode:

In normal, free run acquisition mode, within the range –20 to +20 dBm,
for a 10 dB decreasing power step, the settling time is dominated by
the measurement update rate and is listed in Table 13 for various filter settings.

In normal mode, measuring in continuous or single acquisition mode,

the performance of rise times, fall times and 99% settled results are shown

in Table 14. Rise time and fall time specifications are for a 0.0 dBm pulse,

with the rise time and fall time measured between 10% to 90% points and

upper range selected.

Overshoot in response to power steps with fast rise times, i.e. less than the

sensor rise time, is < 10%. When a power step crosses the power sensor’s

auto-range switch point, add 10 µs.

Table 12. Settling time (average only mode)

Number of average 1 2 4 8 16 32 64 128 256 512 1024

Settling time(s) normal 0.08 0.13 0.24 0.45 1.1 1.9 3.5 6.7 14 27 57

Settling time(s) x 2 0.07 0.09 0.15 0.24 0.45 1.1 1.9 3.5 6.7 14 27

Table 13. Settling time (normal mode)

Number of averages 1 2 4 8 16 32 64 128 256 512 1024

Settling time free run 0.1 0.15 0.25 0.45 0.9 1.7 3.3 6.5 13.0 25.8 51.5
acquisition, normal speed (s)

Settling time free run 0.08 0.1 0.15 0.25 0.45 0.9 1.7 3.3 6.5 13.0 25.8
acquisition, X2 speed (s)

Table 14. Rise and fall times versus sensor bandwidth

1

Sensor model Parameter Video bandwidth setting

Low Medium High Off

E9321A, Rise time (< µs) 2.6 1.5 0.9 0.3
E9325A Fall time (< µs) 2.7 1.5 0.9 0.5

Settling Time (rising) (< µs) 5.1 5.1 4.5 0.6
Settling Time (falling) (< µs) 5.1 5.1 4.5 0.9

E9322A, Rise time (< µs) 1.5 0.9 0.4 0.2
E9326A Fall time (< µs) 1.5 0.9 0.4 0.3

Settling Time (rising) (< µs) 5.3 4.5 3.5 0.5
Settling Time (falling) (< µs) 5.3 4.5 3.5 0.9

E9323A, Rise time (< µs) 0.9 0.4 0.2 0.2
E9327A Fall time (< µs) 0.9 0.4 0.2 0.2

Settling Time (rising) (< µs) 4.5 3.5 1.5 0.4
Settling Time (falling) (< µs) 4.5 3.5 2 0.4

1. Rise and fall time specifications are only valid when used with the E9288A sensor cable (1.5 meters).

Physical specifications

Dimensions: 150 mm L x 38 mm W x 30 mm H

(5.9 in x 1.5 in x 1.2 in)

Weight: Net: 0.2 kg (0.45 lbs)

Shipping: 0.55 kg (1.2 lbs)

Ordering information

E9321A 50 MHz to 6 GHz; 300 kHz BW
E9322A 50 MHz to 6 GHz; 1.5 MHz BW
E9323A 50 MHz to 6 GHz; 5 MHz BW
E9325A 50 MHz to 18 GHz; 300 kHz BW
E9326A 50 MHz to 18 GHz; 1.5 MHz BW
E9327A 50 MHz to 18 GHz; 5 MHz BW

Accessories supplied

Operating and Service Guide (multi-language)
ANSI/NCSL Z540-1-1994 Certificate of Calibration
supplied as standard

Power sensor options

E932xA-A6J Supplies ANSI/NCSL Z540-1-1994

test data including measurement
uncertainties

E932xA-0B1 Add manual set

12

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