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R&S NRT-Z14, Getting Started

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Power sensor tour

R&S

®

NRT-Z14/44

20

Getting Started 1443.8632.02 ─ 01

4.2

 

Host interface

Used for establishing a connection between the power sensor and a computer or
base unit. The connection is used for:

●

Remote control of the power sensor via the serial interface (RS-422).

●

Supplying the power sensor with DC power.

See 

Chapter 3.5, "Connecting to a computer or base unit"

, 

on page 16.

4.3

 

Power handling capacity

Located on the back of the power sensor, there is a derating diagram that shows
the power handling capacity of the power sensor, forward power in W versus fre-
quency. It is also dependent on ambient temperature and the VSWR of the load.
Further information on signal levels is provided in the data sheet. See also 

"Sig-

nal input and output levels"

 

on page 14.

4.4

 

R&S

 

NRT

‑

Z5 USB interface adapter

This adapter connects the host interface of the R&S

 

NRT

‑

Z5 USB interface

adapter to the USB port of a computer.

R&S

 

NRT

‑

Z5 USB interface adapter

Summary of Contents for NRT-Z14

Page 1: ...R S NRT Z14 44 Directional Power Sensor Getting Started 1443863202 Version 01 äP2 ...

Page 2: ...en Germany Phone 49 89 41 29 0 Email info rohde schwarz com Internet www rohde schwarz com Subject to change data without tolerance limits is not binding R S is a registered trademark of Rohde Schwarz GmbH Co KG Trade names are trademarks of the owners 1443 8632 02 Version 01 R S NRT Z14 44 Throughout this manual products from Rohde Schwarz are indicated without the symbol e g R S NRT Z14 is indic...

Page 3: ...1 3 Tutorials 9 2 1 4 Instrument security procedures 9 2 1 5 Printed safety instructions 10 2 1 6 Data sheets and brochures 10 2 1 7 Application notes application cards white papers etc 10 2 2 Key features 10 3 Preparing for use 13 3 1 Unpacking and checking 13 3 2 Choosing the operating site 13 3 3 Considerations for test setup 14 3 4 Connecting to source and load 14 3 5 Connecting to a computer ...

Page 4: ...4 2 Host interface 20 4 3 Power handling capacity 20 4 4 R S NRT Z5 USB interface adapter 20 5 Operating concepts 23 5 1 Base unit 23 5 2 R S Virtual NRT 24 5 3 Remote control 26 5 3 1 Remote control using R S Virtual NRT 26 5 3 2 Remote control using terminal program 27 Index 33 ...

Page 5: ...easurements with digital modulation A profound knowledge of the intended application and test setup is required Where do I find safety information Safety information is part of the product documentation It warns you of potential dangers and gives instructions on how to prevent personal injury or damage caused by dangerous situations Safety information is provided as follows In Chapter 1 1 Safety i...

Page 6: ...rts which can lead to elec tric shock serious personal injury or death if you touch the casing If Rohde Schwarz provides accessories designed for your product e g a carrying bag you can use the product outdoors Unless otherwise specified you can operate the product up to an altitude of 2000 m above sea level The product is suitable for pollution degree 2 environ ments where nonconductive contamina...

Page 7: ...ication of the product The front label of the power sensor contains the serial number that uniquely identifies the power sensor Power handling capacity See Signal input and output levels on page 14 Table 1 1 Labels regarding environment safety Labeling in line with EN 50419 for disposal of electrical and electronic equipment after the product has come to the end of its service life For more inform...

Page 8: ... Started 1443 8632 02 01 CAUTION Potentially hazardous situation Could result in minor or moderate injury if not avoided NOTICE Potential risks of damage Could result in damage to the supported product or to other property Warning messages in the documentation ...

Page 9: ...tions and general information e g safety instructions etc A printed version is delivered with the power sensor 2 1 2 User manual Contains the description of all R S NRT Zxx functions It also provides an intro duction to remote control a complete description of the remote control commands with programming examples and information on maintenance and interfaces Includes the contents of the getting st...

Page 10: ...r background information on particular topics www rohde schwarz com application nrt z_nap z 2 2 Key features The R S NRT Zxx power sensors support the following measurements Average power RMS value Returns the average value of the power for any type of measurement signal modulated unmodulated or several carriers Peak envelope power PEP and crest factor Both parameters provide information on the pe...

Page 11: ...ati cally by the power sensor Complementary cumulative distribution function CCDF Measures the probability of the peak envelope power exceeding a preset thresh old so that the amplitude distribution of signals with an unknown envelope can be determined Voltage standing wave ratio VSWR reflection coefficient return loss These parameters provide information on the matching of the load The power sens...

Page 12: ...Welcome R S NRT Z14 44 12 Getting Started 1443 8632 02 01 Key features ...

Page 13: ...z 3 2 Choosing the operating site Specific operating conditions ensure proper operation and avoid damage to the product and connected devices For information on environmental conditions such as ambient temperature and humidity see the data sheet See also Choosing the operating site on page 6 Electromagnetic compatibility classes The electromagnetic compatibility EMC class indicates where you can o...

Page 14: ... shielded cables for example double shielded RF and inter face cables Always terminate open cable ends Ensure that connected external devices comply with EMC regulations Signal input and output levels Information on signal levels is provided in the data sheet Keep the signal levels within the specified ranges to avoid damage to the product and connected devi ces Information on power handling capac...

Page 15: ... 30 W with high accuracy and matching measurements are of secondary importance you can connect the R S NRT Zxx the other way around To connect to the DUT 1 Connect RF connector 2 port 1 to the source a Insert RF connector 2 straight into the RF connector of the source Take care not to tilt the R S NRT Zxx directional power sensor b Tighten the RF connector securely by hand 2 Connect RF connector 4...

Page 16: ...e unit use the host inter face See Chapter 4 2 Host interface on page 20 For operating the power sensor you can choose from various possibilities For details see Chapter 5 Operating concepts on page 23 3 5 1 Computer As a controller you can use a computer with a Microsoft Windows operating sys tem equipped with R S Virtual NRT or remote control software 2 3 4 5 1 Figure 3 2 Connecting to computer ...

Page 17: ... 2 R S Virtual NRT on page 24 Chapter 5 3 Remote control on page 26 3 5 2 Base unit You can operate the R S NRT Zxx on an R S NRT2 or R S NRX base unit The R S NRX base unit must be equipped with the interface for R S NRT Z sensors R S NRX B9 2 3 1 Figure 3 3 Connecting to base unit 1 R S NRT Zxx directional power sensor 2 host interface connector sensor interface 3 base unit To connect to a base ...

Page 18: ...it on page 23 User manual of the base unit 3 5 3 Legacy setups To support legacy setups you can also connect the power sensor to the following legacy adapters and instruments R S NRT Z3 interface adapter To connect to a computer with standard RS 232 interface R S NRT Z4 PCMCIA interface adapter To connect to a computer with a PCMCIA type II slot R S NRT Legacy base unit Connecting to a computer or...

Page 19: ...sensor front side 1 port 1 RF connector connect to source 2 port 2 RF connector connect to load 3 host interface 4 1 RF connectors Always switch off the RF power before touching the RF connectors See Con necting directional power sensors on page 6 The RF connectors are used for connecting the power sensor between source and load To help connecting the power sensor correctly the RF connectors are a...

Page 20: ...page 16 4 3 Power handling capacity Located on the back of the power sensor there is a derating diagram that shows the power handling capacity of the power sensor forward power in W versus fre quency It is also dependent on ambient temperature and the VSWR of the load Further information on signal levels is provided in the data sheet See also Sig nal input and output levels on page 14 4 4 R S NRT ...

Page 21: ...use a self powered USB hub The drivers for the R S NRT Z5 USB interface adapter are installed on the computer To install the drivers for the R S NRT Z5 USB interface adapter Proceed as described in the technical information delivered with the R S NRT Z5 USB interface adapter For a detailed setup see Chapter 3 5 1 Computer on page 16 R S NRT Z5 USB interface adapter ...

Page 22: ...Power sensor tour R S NRT Z14 44 22 Getting Started 1443 8632 02 01 R S NRT Z5 USB interface adapter ...

Page 23: ... host interface connector sensor interface Communication between the R S NRT Zxx directional power sensor and a base unit is only possible with a baud rate setting of 38400 Bd This setting is the fac tory default that must be restored if the setting was changed If the R S NRT Zxx directional power sensor is not recognized by the base unit check that the baud rate setting of the R S NRT Zxx directi...

Page 24: ... program R S Virtual NRT is provided on the Rohde Schwarz website as a separate standalone installation package https www rohde schwarz com software nrt z_nap z Save the EXE file on your computer Required equipment R S NRT Zxx power sensor R S NRT Z5 USB interface adapter to connect the power sensor to the com puter alternatively you can use a legacy adapter see Chapter 3 5 3 Legacy setups on page...

Page 25: ...ing to source and load on page 14 Chapter 3 5 1 Computer on page 16 2 Switch on the test signal of the signal source 3 Start R S Virtual NRT A few seconds after the user interface is displayed when the pointers of the analog indication start wriggling the power sensor is ready for operation For further instructions see the R S Virtual NRT help If communication with the power sensor could not be es...

Page 26: ...l you can integrate the R S NRT Zxx directional power sen sors into a remote controlled measurement system or use functions that are not available in manual operation You can monitor the power sensor and support the development of your own test program Further information Chapter 3 5 1 Computer on page 16 User manual 5 3 1 Remote control using R S Virtual NRT In R S Virtual NRT remote control is c...

Page 27: ...r each command you want to send repeat step 4 to step 6 8 If you want to clear the receiver protocol displayed in the Output field click CLEAR 9 Click CLOSE to return to manual operation 5 3 2 Remote control using terminal program You can use a terminal program of your choice 5 3 2 1 Interface settings To set up the connection successfully the interface settings of power sensor and computer must m...

Page 28: ... Must match the COM port that is assigned to the serial adapter usually R S NRT Z5 USB interface adapter You can look up this information in the device manager of the operating system b Speed Must match the baud rate setting of the power sensor c Connection type Serial 2 If you want to reuse the session settings you can save them a Under Saved Sessions enter the name b Click Save c To load a sessi...

Page 29: ...tarted 1443 8632 02 01 4 Under Connection Serial configure the parameters of the serial inter face 5 3 2 2 Testing the connection On power up the R S NRT Zxx responds to commands with one or several lines if the connection is working Remote control ...

Page 30: ...ng test 3 Confirm with the return key The power sensor responds 17 0 This is a test string__________________ 18 1 This is a test string__________________ 19 2 This is a test string__________________ 37 97 This is a test string__________________ 38 98 This is a test string__________________ 39 99 This is a test string__________________ See also Chapter 5 3 2 3 Behavior during booting on page 31 To ...

Page 31: ...can load new firmware After booting is completed a power up test is performed for approx 3 s Do not interrupt the power up test If you send the appl command during power up test the power sensor responds with 9B busy_________________________________________ After the power up test is completed send the appl command again to ready the power sensor for measuring The power sensor responds with 8C boo...

Page 32: ...Operating concepts R S NRT Z14 44 32 Getting Started 1443 8632 02 01 Remote control ...

Page 33: ...9 Intended use 5 K Key facts 10 L Labels 7 Legacy systems Connecting 18 Load 14 O Operating concepts 23 R S NRT2 23 R S Virtual NRT 24 Remote control 26 Operating conditions 13 P Power handling capacity 20 Preparing for use 13 R R S NRT2 23 R S Virtual NRT 24 Installing 24 Measurement 25 Required equipment 24 Setup 24 Regulatory information 5 Remote control Booting 31 Connection test 29 Interface ...

Page 34: ...Index R S NRT Z14 44 34 Getting Started 1443 8632 02 01 W Warning message 7 Welcome 9 White papers 10 ...

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