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Keysight N9340B, Demo Manual

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Keysight N9340B Demo Manual Download Page 4

4

Caption

Function

1

External DC power connector

Provides input for the DC power source via an AC-DC adapter or automotive type DC adapter. 

2

LED indicator (charging)

Light is {On} when the battery is charging

3

LED indicator

Light is {On} when external DC power is connected to the tester

4

USB interface (device)

Connects the analyzer to a PC

5

USB interface (host)

Connects the analyzer to a USB memory stick or disk

6

Headphone

Connects the analyzer to a headphone

7

LAN interface

Connects the analyzer to a PC for SCPI remote control

8

RF OUT connector

The output for the built-in tracking generator. Enabled with Option TG3.

9

EXT TRIG IN/REF IN  
(BNC, female)

Connects to an external TTL signal or a 10 MHz refer ence signal. The TTL signal is used to  
trigger the analyzer’s internal sweep.

10

RF IN connector (50 Ω)

Accepts an external input with a frequency range from 100 kHz to 3 GHz, tunable to 9 kHz

Section 1

Top Panel Overview

10

9

8

7

1

2

3 4

5

6

Summary of Contents for N9340B

Page 1: ...Keysight Technologies N9340B Handheld Spectrum Analyzer Demo Guide ...

Page 2: ...nded by indicate hardkeys located on the front panel while key names surrounded by indicate softkeys located on the right of the display Demos 1 Panel Tour 2 File Operation 3 Measurement Basics 4 Peak Search and Makers 5 Measuring Signal to Noise with Delta Markers 6 Improving Signal to Noise 7 Limit Lines and Pass Fail Testing 8 Spectrogram 9 Tracking Generator 10 Power Meter Measurements 11 Fiel...

Page 3: ... and closes the dialog box or clears the character input 6 MARKER Activates the marker functions 7 LIMIT Sets limit lines for quick pass fail testing 8 Save Quickly saves the current trace 9 Arrow keys Increases or decreases a parameter step by step 10 Knob Selects an option item or edits a numerical parameter 11 Softkeys Indicate current menu functions 12 Built in light sensor Adjusts the display...

Page 4: ... analyzer to a USB memory stick or disk 6 Headphone Connects the analyzer to a headphone 7 LAN interface Connects the analyzer to a PC for SCPI remote control 8 RF OUT connector The output for the built in tracking generator Enabled with Option TG3 9 EXT TRIG IN REF IN BNC female Connects to an external TTL signal or a 10 MHz refer ence signal The TTL signal is used to trigger the analyzer s inter...

Page 5: ...ual and adjust the backlit keys brightness SYS KeyBackLight BackLight Man Brightness High Off Brightness Med Set the automatic turn off time interval so the backlit keys will shut off when not in operation SYS KeyBackLight AutoOffTimer 5 Sec 10 Sec Communication system maintenance and repair often requires a technician to troubleshoot in bright daylight or in the dark There is a light sensor on th...

Page 6: ...tting information Spectrum Mask MSK Records spectrum mask settings State STA Records the current controls and settings of the analyzer Trace DAT Records the data of the current trace and controls In this section the state of the instrument is saved to a filename of your choice so that it can be recalled for use in later sections Section 2 Save Recall Setups and Results 1 Save a state file to the l...

Page 7: ...e Setup File Type State Rotate the knob to highlight the file Load the file Load now 2 Save the state file to an external USB memory stick Instruction Key strokes Insert a USB memory stick into the USB port on the top panel of the analyzer Call up the file save menu SYS Select the save path File File Setup Save Path USB Select the file type File Setup File Type State Enter the file name using the ...

Page 8: ...l set an external signal generator to 100 MHz at 10 dBm and connect an RF cable from its output port to the input port of the N9340B Software If you do not have a signal generator you can connect an antenna to the input port of the N9340B and perform this demonstration using an ambient signal such as from a local radio station In this case you may need to jump ahead to Section 6 to learn how to lo...

Page 9: ... one peak you can connect an antenna to the input port of the N9340B and perform this demonstration using ambient signals such as from several local radio stations In this case you may need to jump ahead to Section 6 to learn how to lower the noise Instruction Key strokes Connect the 100 MHz signal to the RF IN connector Set start frequency and stop frequency Preset FREQ Start Freq 90 MHz Stop Fre...

Page 10: ...nals Note Besides harmonics you can also measure the amplitude ratio of any two signals present in dBc using delta markers The Marker Normal function lets you enter the exact frequency you want the marker to go The Delta Marker function lets you enter the exact frequency difference desired and places the second marker at that point The amplitude difference is shown in the upper right corner of the...

Page 11: ...vides a 1 dB step attenuator to allow maximum flexibility when setting the analyzer s dynamic range If after adjusting the attenuation and RBW a signal is still near the noise visibility can be improved by using the video bandwidth VBW or averaging functions VBW filter smoothes small signal variations Averaging function simply averages the traces on screen as the sweep is made Turning on the inter...

Page 12: ...mpares trace data to a set of amplitude and frequency parameters while the analyzer is sweeping the measurement range Instruction Key strokes Connect the signal to the RF IN connec tor Set center frequency and span Preset FREQ Center Freq 100 MHz Span 1 MHz Quit digital edit state ESC CLR Open the limit menu Limit Activate the limit lines Limit On Open the limit lines edit menu Edit Limits There a...

Page 13: ...can be displayed and saved In the following demo an Omni Antenna with a frequency range from 1 8 GHz to 1 9 GHz is needed Instruction Key strokes Connect the omni antenna to the RF IN connector Set HSA to high sensitivity mode AMPTD HiSensitivity On Set the center frequency and span 1 FREQ Center Freq 1 8052 GHz SPAN 5 MHz Turn on the spectrogram function MEAS Spectrogram Set the update interval t...

Page 14: ...14 Figure 5 Spectrogram screenshot Figure 6 Spectrogram trace mode Trace display shows the trace from the spectrogram for the time selected Section 8 Spectrogram continued ...

Page 15: ...est The N9340B spectrum analyzer can be used to characterize measure transmis sion parameters such as fl atness and rejection or refl ection parameters such as return loss on devices under test DUTs Return loss is an a reflection measurement requiring a directional coupler or bridge Transmission measurements In the following demo the rejection of a bandpass fi lter is measured In the following dem...

Page 16: ...easurement sensitivity and smooth the noise RBW 30 kHz VBW 30 kHz Disconnect the DUT and directly connect the cable from the tracking generator output to the analyzer input Store the frequency response of the cable in trace 4 by performing normalization MEAS Normalize Store Ref 1 4 Normalize On Reconnect the DUT Change the normalized reference position Norm Ref Posn 8 ENTER Measure the rejection o...

Page 17: ...g Any adapter between the test port and DUT degrades coupler bridge directivity and system source match Ideally you should use the same adapter for the calibration and the measurement Be sure to terminate the second port of a two port device Please refer to the following procedures when connecting the DUT to the instrument 1 Connect the DUT to the directional bridge as shown in Figure 9 and termin...

Page 18: ...o the directional bridge output connector Normalize to eliminate the test system response error MEAS Normalize Store Ref 1 to 4 Normalize On Change the normalized reference position Norm Ref Posn 8 ENTER Reconnect the DUT without changing any analyzer settings and terminate the uncon nected port of the DUT Use a marker to read the return loss Position a marker and rotate the knob to find the highe...

Page 19: ... percentage for relative measure ments Results can be displayed in power meter mode with fast display update rates or on a chart of power versus time In this demo the N9340B is used with a U2000A USB power sensor to measure the output power of an external signal generator Instruction Key strokes Connect the U2000A power sensor to the USB interface of the N9340B PRESET Turn on the power meter funct...

Page 20: ...20 The N9340B can display power measurement results in meter mode or chart mode Figure 12 Power meter mode Figure 13 Chart mode Section 10 Power Meter continued ...

Page 21: ... factor file and load it into the N9340B via USB cable Instruction Key strokes Connect the N9340B to a PC using a USB cable Run the Keysight N9340 PC software on the PC Click the N9340 PC software shortcut key on the PC screen Open a new antenna file File New select the antenna file Edit the antenna file Insert fill out the antenna parameters in the antenna point dialog box such as frequency anten...

Page 22: ...e into N9340B via USB SYS File View Usb File Setup File Type Antenna rotate the knob to highlight the file Copy 3 Run the field strength measurement function Instruction Key strokes Connect the antenna to the RF IN connector Turn on the field strength function MEAS More FieldStrength Load the antenna file AntennaTable highlight the file by rotating the knob Load You can set up limit lines using th...

Page 23: ...deviation signal to noise and distortion ratio SINAD and carrier frequency offset User definable limits provide pass fail indicators for four types of measurements Maximum carrier power Maximum AM modulation index or FM deviation Minimum AM modulation index or FM deviation Minimum carrier frequency offset You can save the waveforms with metrics for reporting and set up parameters for future measur...

Page 24: ...ysis ENTER AM Set the carrier frequency of the source Carrier Freq 100 MHz Set the attenuation state to auto More 1 of 3 More 2 of 3 Attenuation Auto More 3 of 3 Set the Y scale Y Scale Auto Scale Return Set the AM depth limit and turn on the limit function More 1 of 3 Limits AM Depth UP 51 AM Depth Low 49 Limits on Return Save the result SYS File enter the file using the numeric keypad Save Detai...

Page 25: ...e knob to highlight Demodulation Analysis ENTER FM Set the carrier frequency Carrier Freq 100 MHz Set the attenuation state to auto More 1 of 3 More 2 of 3 Attenuation Auto More 3 of 3 Set the Y scale Y Scale Auto Scale Return Set the FM deviation limit and turn on the limit function More 1 of 3 Limits FreqDev UP 11 kHz FreqDev Low 9 9 kHz Limits on Return Figure 16 FM demodulation Detailed metric...

Page 26: ...ators Option AMA provides four types of measurements Maximum carrier power Maximum ASK modulation depth FSK frequency deviation Minimum ASK modulation depth FSK frequency deviation Maximum carrier frequency offset Metrics include carrier power ASK FSK error ASK depth FSK frequency deviation ASK index etc You can save the waveform with metrics and setup parameters for reports and future measurement...

Page 27: ...r Freq 100 MHz Set the symbol rate Symbol Rate 10 ksps Set the filter type Filter Setup Ref Filter Nyquist Return Set the attenuation state to auto More 1 of 3 More 2 of 3 Attenuation Auto More 3 of 3 Set the Y scale Y Scale Auto Scale Return Set the ASK depth limit and turn on the limit function More 1 of 3 Limits ASK Depth UP 71 ASK Depth Low 70 Limits on Return View the eye diagram More 2 of 3 ...

Page 28: ...t the symbol rate Symbol Rate 10 ksps Set the filter type Filter Setup Ref Filter Nyquist Return Set the attenuation state to auto More 1 of 3 More 2 of 3 Attenuation Auto More 3 of 3 Set the Y scale Y Scale Auto Scale Return Set the FSK deviation limit and turn on the limit function More 1 of 3 Limits FreDev UP 41 kHz FreqDev Low 39 kHz Limits on Return View the eye diagram More 2 of 3 More 3 of ...

Page 29: ...for each out of channel frequency range The user can save the spectrum scan the mask the data or screen shot for later analysis and reporting As it applies to W CDMA 3GPP this is the power contained in a specified frequency bandwidth at certain offsets relative to the total carrier power It may also be expressed as a ratio of power spectral densities between the carrier and the specified offset fr...

Page 30: ...tware and the Keysight I O library should be installed on your PC Remote control the N9340B via USB Instruction Key strokes Connect the N9340B and PC with a USB cable Run the Keysight N9340 PC software on the PC Click the N9340 PC software shortcut key on the PC screen Monitor the signal on the PC Click the Monitor shortcut key Highlight the corresponding USB address of the N9340B in the instrumen...

Page 31: ... NI604 C A1 router a PC with Keysight IO Libraries Suite version 15 0 or later and N9340 PC software version A 01 04 or later installed and 3 LAN cables are needed See Figure 22 for system connection Section 14 Automation continued LAN Cable N9340B LAN PC N9340 PC Software Router D Link N1604 C A1 ...

Page 32: ...truments shortcut key on the toolbar Select the item corresponding to the IP address of the N9340B Click Ok You can manually add the N9340B into the Keysight connection expert Click the Add Instrument shortcut key on the toolbar Click the Add Address shortcut key or manually add a known IP address or hostname Select Use IP Address item and input the IP address of the N9340B Select IDN query click ...

Page 33: ...d contactus BP 9 7 17 DEKRA Certified ISO9001 Quality Management System www keysight com go quality Keysight Technologies Inc DEKRA Certified ISO 9001 2015 Quality Management System Evolving Since 1939 Our unique combination of hardware software services and people can help you reach your next breakthrough We are unlocking the future of technology From Hewlett Packard to Agilent to Keysight myKeys...

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