Spectrum Analyzer: Difference between revisions

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''' Advantest TR4172 Specifications '''
''' Advantest TR4172 Specifications '''


<table border="1">
The TR4172 Spectrum analyzer is a microprocessor-controlled,
  <tr>
intelligent instrument with a frequency range from 50 Hz to
    <td>Low end frequency limit</td>
1800 MHz. in addition to the spectrum analyzing function,
    <td>50.00 Hz</td>
the integrated tracking Generator of TR4172 enables analysis
  </tr>
of frequency response of Filter Amplifier and so on TR4172 is the first Spectrum analyzer with a capability for
  <tr>
measuring phase response and group delay of Filter or Amplifier at resolutions of down to 0.1 deg and 0.1 ns
    <td>High end frequency limit</td>
respectively, up to a frequency of 1800 MHZ.
    <td>1.80 GHz</td>
 
  </tr>
The integrated tracking Generator along with the analyzer’ร
  <tr>
intelligent control capability, permits correction of the
    <td>Resolution Bandwidth Min.</td>
analyzer's frequency response itself allowing precision
    <td>10 kHz</td>
level measurement.
  </tr>
 
  <tr>
A wide dynamic range is ensured by the low higher-harmonic
    <td>Resolution Bandwidth Max.</td>
distortion level of 90 dB at and above 20 MHz, with respect
    <td>0</td>
to a signal level of -40 dBm.
  </tr>
 
  <tr>
The display screen has a dynamic range of more than 95 dB
    <td>Amplitude Range</td>
and permits direct observation of Filter responses with
    <td>--</td>
large attenuations.
  </tr>
 
  <tr>
The vertical resolution of the scale can be selected from
    <td>Status</td>
10, 5, 2, 1, and 0.1 dB per division, observation of a
    <td>discontinued</td>
ripple level of even 0.01 dB is possible with the maximum
  </tr>
resolution setting.
  <tr>
 
    <td>Launch Date</td>
Use of the SAVE switch makes various measurements available,
    <td>--</td>
with which up to eight sets of measurement condition data
  </tr>
are stored in the internal registers and recalled as needed.
  <tr>
Since the internal memory is backed up by a battery, its
    <td>Discontinued on</td>
contents remain intact even if the device is unplugged from
    <td>--</td>
its supply outlet.
  </tr>
 
  <tr>
All front panel functions are remotely controllable with the
    <td>Supported until</td>
GPIB Interface (standard supply) for automatic measurement.
    <td>--</td>
The CRT display presents all pertinent measurement data. The
  </tr>
signal response trace and measurement data on the screen can
  <tr>
be output to an X-Y plotter simply by connecting the
    <td>See also</td>
instrument*ร GPIB connector to the plotter'ร input with a
    <td>TR4171</td>
GPIB cable and operating the relevant front-panel switches,
  </tr>
without the need for running an output program on the GPIB
</table>
controller TR4172 also provides various convenient features to enhance
measurement flexibility and efficiency, such as multiple
marker, zoom, automatic centering, automatic enlargement,
auto-peak search, logarithmic scaling, and four page
memorized display.





Revision as of 00:48, 15 December 2025

Project Spectrum Analyzer
Status In progress
Contact Crashjuh
Last Update 2025-12-15

Information

Advantest TR4172 Specifications

The TR4172 Spectrum analyzer is a microprocessor-controlled, intelligent instrument with a frequency range from 50 Hz to 1800 MHz. in addition to the spectrum analyzing function, the integrated tracking Generator of TR4172 enables analysis of frequency response of Filter Amplifier and so on TR4172 is the first Spectrum analyzer with a capability for measuring phase response and group delay of Filter or Amplifier at resolutions of down to 0.1 deg and 0.1 ns respectively, up to a frequency of 1800 MHZ.

The integrated tracking Generator along with the analyzer’ร intelligent control capability, permits correction of the analyzer's frequency response itself allowing precision level measurement.

A wide dynamic range is ensured by the low higher-harmonic distortion level of 90 dB at and above 20 MHz, with respect to a signal level of -40 dBm.

The display screen has a dynamic range of more than 95 dB and permits direct observation of Filter responses with large attenuations.

The vertical resolution of the scale can be selected from 10, 5, 2, 1, and 0.1 dB per division, observation of a ripple level of even 0.01 dB is possible with the maximum resolution setting.

Use of the SAVE switch makes various measurements available, with which up to eight sets of measurement condition data are stored in the internal registers and recalled as needed. Since the internal memory is backed up by a battery, its contents remain intact even if the device is unplugged from its supply outlet.

All front panel functions are remotely controllable with the GPIB Interface (standard supply) for automatic measurement. The CRT display presents all pertinent measurement data. The signal response trace and measurement data on the screen can be output to an X-Y plotter simply by connecting the instrument*ร GPIB connector to the plotter'ร input with a GPIB cable and operating the relevant front-panel switches, without the need for running an output program on the GPIB controller TR4172 also provides various convenient features to enhance measurement flexibility and efficiency, such as multiple marker, zoom, automatic centering, automatic enlargement, auto-peak search, logarithmic scaling, and four page memorized display.


Advantest TR4172 Features
50Hz to 1,800MHz,
10Hz resolution,
reflection measurement bridge,
tracking generator,
very low noise level,
GPIB

Status

The device is overhauled by Crashjuh, with some help from Maxell and PBX
At present, there are again a number of buttons that refuse service.
These buttons would therefore be replaced by new momentary-contact push buttons.

Operating manual / Maintenance manual

Pics