
Reference Waveforms
R&S
®
RTM20xx
74
User Manual 1317.4726.02 ─ 01
5 Reference Waveforms
Reference waveforms are waveform data stored in in the internal reference storages.
Four internal reference storages are available: RE1 - RE4. These four reference wave-
forms can be displayed.
Reference waveforms can be saved to and loaded from any storage device - internal
memory or external USB flash device. The file format is
.TRF
, and the file size is about
12.4 Byte. The file content depends on the storage device:
●
Internal storage of the R&S
RTM: TRF files contain also the instrument settings, so
you can restore also the settings when you load a reference waveform.
●
External USB flash drive: TRF files contain only the waveform data, the instrument
settings are not saved and cannot be restored.
See
chapter 13.2.4.1, "Waveform File Formats"
, on page 227 for details on file formats.
You can copy the stored references to another storage device with usual export/import
functions. With export/import, you can also change the target file format and convert the
data. If you export a TRF file to a USB flash drive, the instrument settings get lost and
cannot be loaded with the waveform data anymore. To copy a stored reference, use
FILE >"Import/Export References". See also:
chapter 13.2.1.2, "Importing and Exporting
Furthermore, you can save waveforms directly to a USB flash drive with FILE > "Wave-
forms", without creating a reference waveform before. See:
5.1 Using References
You can store any of the active waveforms as reference waveform - channel, math, and
other reference waveforms - or load a previously saved reference.
If MSO option R&S
RTM-B1 is installed, you can store also the pods of digital channels
as references.
For each selected reference waveform, you can adjust the vertical position and scale as
usual, and, unlike for other waveform types, you can also adjust the horizontal position
and scale individually.
The current scale values are shown in the waveform label of the reference waveform.
5.1.1 Displaying a Reference Waveform
A reference waveform is displayed as soon as data is written to its storage, either from
an active waveform, or loaded from a reference file. You can hide it and display it again
by using the "Visible" key.
1. Press the REF key to display the "Reference" menu.
Using References