Gsertel Hexylon, User Manual

Page: 53 / 73

EN
53
8.4.5.2.- Options context menu
• Span: 100KHz, 1MHz, 5MHz, 10 MHz, 20 MHz, 50
MHz, 100 MHz, 200 MHz, 500 MHz, 1.0GHz, 2.0GHz,
3.3GHz, Other.
• Reference level: Auto, 50dBuV – 130dBuV
• dB/div: Auto, 5dBuV, 10dBuV
• RBW: 500 HzW – 5MHzW
• VBW: 100Hz – 1MHz
• BW: Selects the bandwitch of the channel.
• Advanced: Access to spectrum advanced features:
- Hold: enables/disables max. hold y min.
hold features. Tapping on Clear button to
restart hold trace.
- Trigger: enables/disables the trigger by
level feature. To select the level, tap on
the label and a popup keyboard appears.
- Fill: enables/disables the spectrum graph
filled.
• Quality profile: allows to select the quality profile
• Powering:
- VDC: Selects the preamplifier powering.
• Aim Antenna: ON/OFF
Emits a modular audible signal with
frequency directly proportional to signal
level in the spectrum trace relative to
reference level. It is recommended to set
the reference level manually, as well as
to select the span to include a frequency
range wide enough. The audible signal
becomes continuous when the signal
leves is close to the reference level. Then it
is necessary to increase the reference level
to get a more accurate adjustment. This is
a useful feature to point antennas without
having to look at the display
8.4.6.- FM Deviation (only for FM channels)
This feature shows the difference between an FM
modulated frequency and the nominal carrier
frequency.
8.4.6.1.- Main Window
8.4.6.2.- Options context menu
• Restart: Starts a new chart
• Quality profile: allows to select the quality profile .
List of measurement: powe, C/N, peak deviation
(maximum deviation value), and BLER (block
error rate -rate of RDS errored blocks-)
The grey shadow indicates the
maximum deviation value to
make sure there are no problems
in neighbouring channels
Chart represents the
distribution of the
frequency deviation