Chapter 3 OEM7 Receiver Operation
OEM7 Installation and Operation User Manual v4
76
To configure HDR mode, use the
ITFRONTENDMODE
command. HDR mode can also be
enabled using NovAtel Connect.
Notch Filter
The Interference Toolkit notch filter reduces the signal power in a narrow frequency band. This
type of filter is useful for reducing the signal power of a single, narrow band interference signal.
Note that the narrowest possible filter should be used to maintain the maximum amount of over-
all signal power.
To configure a notch filter, use the
ITPROGFILTCONFIG
command. A notch filter can also be
configured using NovAtel Connect.
Bandpass Filter
The Interference Toolkit bandpass filter reduces the signal power of all incoming signals at the
upper and lower end of the GNSS signal band starting at the requested cut-off frequency. This
type of filter is good for reducing single or multiple interference signals at the edges of the sig-
nal band.
When a bandpass filter is applied to this signal, the upper and lower ends of the signal band are
filtered out to reduce the signal power of the interference signal.
To configure a bandpass filter, use the
ITPROGFILTCONFIG
command or the
ITBANDPASSCONFIG
command. A bandpass filter can also be configured using NovAtel Con-
nect.
Example of a Notch Filter
The following example shows interference at 1750 in the signal band.
The following example shows post filtering with interference.
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