N1935A Electrical Specifications and Characteristics

Definitions

All specifications and characteristics apply over a 25°C  5°C range (unless otherwise stated) and 90 minutes after the instrument has been turned on.

Specification (spec.)

Warranted performance. Specifications include guard bands to account for the expected statistical performance distribution, measurement uncertainties, and changes in performance due to environmental conditions.

Characteristic (char.)

A performance parameter that the product is expected to meet before it leaves the factory, but that is not verified in the field and is not covered by the product warranty. A characteristic includes the same guard bands as a specification.

Typical (typ.)

Expected performance of an average unit which does not include guard bands. It is not covered by the product warranty.

Nominal (nom.)

A general, descriptive term that does not imply a level of performance. It is not covered by the product warranty.

Calibration

The process of measuring known standards to characterize the system's systematic (repeatable) errors.

Corrected (residual)

Indicates performance after error correction (calibration). It is determined by the quality of calibration standards and how well "known" they are, plus system repeatability, stability, and noise.

Uncorrected (raw)

Indicates instrument performance without error correction. The uncorrected performance affects the stability of a calibration.

Configuration

The following specifications are applicable for a system in the following configurations:

Network Analyzer:

Keysight N5230A Option 225

Test Set:

Keysight N4419B

Calibration Kit:

Keysight 85052D 3.5 mm

Test Port Cables:

Keysight N4419B Option B20

Calibration Technique:

Four-Port SOLT

System Dynamic Range

The test port transmission measurements are valid at 10 Hz IF bandwidth with four-port error correction and -5 dBm default maximum output power. The dynamic range is the difference between rms noise floor and the output power.

Table 1 System Dynamic Range

Frequency Range

Characteristics

10 MHz to 45 MHz

  60 dB

45 MHz to 500 MHz

70 dB

500 MHz to 2.0 GHz

100 dB

2.0 GHz to 10.0 GHz

100 dB

10.0 GHz to 20.0 GHz

70 dB

Measurement Port

Residual uncertainties for corrected data using four-port error correction. These apply for 25° C with less than 1° C variation from calibration.

Table 2 Measurement Port Characteristics

Description

Characteristic

    

45 MHz
to
2.0 GHz

2.0 GHz
to
10.0 GHz

10.0 GHz
to
20.0 GHz

    

Directivity

56 dB

42 dB

40 dB

    

Source Match

42 dB

36 dB

33 dB

    

Load Match

56 dB

42 dB

40 dB

    

Reflection Tracking

± 0.0025 dB

± 0.009 dB

± 0.013 dB

    

Transmission Tracking

± 0.020 dB

± 0.032 dB

± 0.050 dB

    

Test Set Performance

Table 3 Test Set Performance

Description

Characteristics

Supplemental Information

Frequency Range

10 MHz to 20.0 GHz

 

Impedance

 

50 Ohms (nom.)

Insertion Loss

 

 

Source Out to Coupler Thru  

5.0 dB maximum

 

Port 2 to Rcvr A In and
Port 4 to Rcvr B In

 

 

45 MHz to 1.0 GHz

 

18 to 45 dB (typical)

1.0 GHz to 20.0 GHz

 

18 to 25 dB (typical)

Rcvr A In to Cplr Arm and
Rcvr B In to Cplr Arm

8.0 dB maximum

 

Isolation (port to port)

 

 

45 MHz to 200 MHz

³ 70 dB

 

200 MHz to 20 GHz

³ 90 dB

 

Maximum Operating Level

+20 dBm

 

Damage Level

 

+30 dBm (typical)

Test Port Connectors

 

50 Ohms (nom.)
3.5 mm Connectors

Power Supply

The power supply requirements for the test sets are listed below.

Table 4 Test Set Power Supply Specifications

Description

Specification

Input Voltage Range

100 to 240 Volts

Frequency Range

47 to 63 Hertz

Power

40 VA

General Characteristics

The following are the test set environmental operating conditions and physical characteristics.

Environmental Operating Conditions

The environmental operating conditions for the test set are listed below.

Table 5 Test Set Environmental Operating Conditions

Description

Conditions

Operating Environment

Indoor use

Altitude

 

  Operating:  

0 to 2.0 km (6,560 ft)

  Storage:

0 to 15.24 km (50,000 ft)

Temperature

0 C to 40 C

Maximum Relative Humidity

80% for temperatures up to 31 C decreasing linearly to 50% for a temperature of 40 C

This product is designed for use in INSTALLATION CATEGORY II and POLLUTION DEGREE 2, per IED 61010-1 and 664, respectively.

Physical Characteristics

The weight and dimensions for the test sets are listed below.

Table 6 Test Set Weight and Dimensions

Model Number

Weight

Dimensions

Height (A)

Width (B)

Depth (C)

N4419B

9.0 kilograms
(19.9 pounds)

3.0 in
(7.62 cm)

16.75 in
(42.55 cm)

19.25 in
(48.90 cm)

N4420B and N4421B

9.0 kilograms
(19.9 pounds)

5.5 in
(13.97 cm)

16.75 in
(42.55 cm)

16.75 in
(42.55 cm)