Digital Television Signal Analyzer Measurement Guide : DVB‑T/H SFN Signal Analyzer : Marker Menu (Inband Spectrum)
 
Marker Menu (Inband Spectrum)
This menu is displayed when the Marker main menu key is pressed while making measurements in the Inband Spectrum mode.
Key Sequence: Marker
Marker Menu (Inband Spectrum)
Marker
On Off
Press this submenu key to toggle the main Marker setting On or Off. The current setting is underlined on the submenu key. When set to On (and when the Delta Marker is Off), this marker is displayed as a small green diamond in the Inband Spectrum graph.
The frequency and amplitude that are displayed in the lower‑right corner of the screen are absolute values that are associated with the marker.
Delta Marker
On Off
Press this submenu key to toggle the Delta Marker setting On or Off. The current setting is underlined on the submenu key. When Marker and Delta Marker are both set to On, the reference marker is replaced with a small green square, and the Delta Marker is displayed as a green diamond, which is originally located at exactly the same point at which the reference marker is located.
Notice that the frequency and amplitude annotation that are initially displayed in the lower‑right corner of the screen are 0 MHz and 0 dB. This is because this annotation corresponds to the Delta Marker position (diamond) relative to the fixed marker position (square), and the Delta Marker is originally placed exactly at the reference marker position.
By turning the rotary knob, you can move the Delta Marker to a different location.