Itbandpassconfig - Novatel OEM6 Integration Manual

Chapter 2 New for OEM7 – Firmware

2.2.14 ITBANDPASSCONFIG

Enable and configure bandpass filter on receiver
Platform: OEM729, OEM719, OEM7700
Use this command to apply a bandpass filter at a certain frequency to mitigate interference in
the pass band of L1 primary signals. The ITBANDPASSBANK log (see page 102) provides
information on the allowable configuration settings for each frequency band. The bandpass filter
is symmetrical in nature, which means that specifying one cutoff frequency will apply a cutoff on
both the low side and high side of the spectrum center frequency. For instance, applying a cutoff
frequency of 1576.3 MHz in the GPSL1 frequency band (this is on the high side as the center fre-
quency is 1575 MHz) will also apply a cutoff at 1573.7 MHz (low side). Only one filter can be
applied for each signal.
The bandpass filters are only applicable to GPS L5, Galileo 5A, Galileo 5B, BeiDou B2
phase 2 and BeiDou B1 phase 2.
Message ID: 1999
Abbreviated ASCII Syntax:
ITBANDPASSCONFIG frequency switch [cutofffrequency]
Factory Default:
ITBANDPASSCONFIG gpsl5 enable 1178.5
ASCII Example:
ITBANDPASSCONFIG gpsl5 enable 1178.5
Field Field Type
ITBANDPASS
1
CONFIG header
2 frequency
3 switch
OEM6 to OEM7 Integration Guide v1
ASCII Binary
Value Value
Command header.
- - See Messages for
more information.
See Table 21: Set the frequency
Frequency Types band on which to
on page 47 apply the filter
DISABLE 0 Disable filter
ENABLE 1 Enable filter
Description Format
-
Enum
Enum
Binary Binary
Bytes Offset
H 0
4 H
4 H+4
38