18 | Keysight | N9342C/N9343C/N9344C HSA Handheld Spectrum Analyzer - Demonstration Guide
In order to keep a communication system working reliably long term, you need to monitor
the spectrum routinely. Regular spectrum monitoring is usually accomplished automati-
cally by using remote control software to drive the spectrum analyzer. You can remotely
control the HSA using SCPI commands over LAN and USB, or use the HSA PC software
to monitor spectral changes. There are two modes that are used to set up the HSAs’ LAN
IP address: static and DHCP.
In this demonstration, we will show how to set HSA’s IP address.
Instructions for HSA
Keystrokes for HSA
Set HSA’s IP address is in static mode
[Shift], {System}, {More 1 of 2}, {Port Setting}, {IP Config}, {IP Address
(Static)}
Set IP address such as: 192.168.0. 12
[192.168.0.12], [Enter]
Set gateway such as: 192.168.0.8
[192.168.0.8], [Enter]
Set subnet mask such as: 255.255.255.0
[255.255.255.0], [Enter], {Apply}
Set HSA’s IP address automatically using DHCP mode
[Shift], {System}, {More 1 of 2}, {Port Setting}, {IP Config}, {IP Address
(DHCP)}, {Apply}
Demonstration 7
Remote control via LAN or USB port
The N934xC HSAs each have a total of six markers that can be used in normal or delta
mode. In addition to the marker table and peak search, each N934xC HSA also has a
peak table feature which automatically searches 10 max or min peak signals simultane-
ously and is updated after each sweep.
In this demonstration, we will use peak table to find the absolute values of FM signal
sidebands.
Note: To prevent data corruption when saving the table to a USB memory device, set
the file directory to USB then reset to INT before removing the device.
Demonstration 8
Marker, marker table, and peak table
Instructions for the source
Keystrokes for the source
Set 2 GHz center frequency, amplitude -10 dBm, 100 kHz deviation, 30
kHz rate, FM signal
[Preset], [FREQ], [2], {GHz}, [AMPTD], [-10], {dBm},
[FM/
Ф
M], {FM On}, {FM Dev} [100], {kHz}, {FM Rate}, [30], {kHz}, [Mod On],
[RF On]
Instructions for HSA
Keystrokes for HSA
Set center frequency to 2 GHz
[Freq], [2], {GHz}
Set span to 500 kHz
[Span], [500], {kHz}
Set reference level to -10 dBm
[Amptd], {Ref Level}, {10}, {dBm}
Peak search
[Shift], [Peak], {Peak Search}
Measure the absolute peak amplitude of FM sidebands using the peak
search table. Peak search table will display up to 10 peaks (Figure 21)
{More 1 of 2}, {Peak Table}, {Peak Table On}
Change peak criterion
[Shift], [Peak], {More 1 of 2}, {Peak Criterion}, user can set the peak threshold
limit, peak excursion limit and peak type
Save peak table in a .csv format
[Shift], [Peak], {More 1 of 2}, {Peak Table}, {Export Table to CSV}, input file
name, [Enter]
Turn the peak table off
[Shift], [Peak], {More 1 of 2}, {Peak Table}, {Peak Table Off}
Figure 21. FM sidebands peak values in peak table