Promax CABLE RANGER, Руководство пользователя

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April 2018 22 Chapter 3: MEASUREMENT
13 Arrows to increase / decrease span. Current span.
14 Bandwidth resolution.
15 Selected marker for channel / frequency.
►
Options Menu
There are some options at the bottom of the screen:
„
: Screenshot.
„
CLEAR: It clears spectrum trace (this options is available if trace was hold
previously).
„
DBG: It opens DOCSIS BONDING GROUP screen (see next section).
„
RANGING (only for CABLE): It enables RANGING function (see next
section).
„
DEMOD: Demodulator (refer to "Demodulator" chapter).
►
Settings Menu
Click on the MENU icon at the upper right corner to access the Settings
menu. The DOCSIS DOWNSTREAM SPECTRUM ANALYZER function has
these options:
„
Edit channel plan: It allows you to edit a channel plan and DBG (refer to
"Edit Channel Plan" chapter).
„
Units: It allows you to select measurement unit for power (dBuV, dBmV,
dBm).
„
Reference Line: It allows you to select the reference line by numbers
(-60 dBmV to +70 dBmv). Reference line allows you to define criteria in
order to quickly accept or refuse channels levels.
„
Trace: It allows you to select holding type of trace (maximal, minimum).
„
CM information: Information about the cable modem.
„
Frequency step: It allows you to select frequency step (0.25 MHz, 1
MHz, 8 MHz, other value).
„
Full span maximum frequency: It allows you to select full span
maximum frequency (900 MHz, 1700 MHz, other value).
„
Detector: It allows you to select detector type (maximum, minimum).
„
Wavelenght (only for FO): It allows you to select wavelength (1310
nm, 1490 nm, 1550 nm, 1590 nm).