Gnss Settings (Offline); Table 26: Snmp Settings - Novatech Kronos 2 Series User Manual

Parameter Description
AUTH_NAME
User name for read-only access using SNMPv3.
Default: blank (access is disabled)
AUTH_KEY
Password for read-only access using SNMPv3.
AUTH_PROTOCOL
Authentication protocol to use when validating AUTH_NAME and AUTH_KEY.
Possible values are MD5 or SHA.
Default: MD5

5.10 GNSS Settings (Offline)

The parameters GALILEO, GLONASS, and BEIDOU for controlling these constellations can also be made
in the webpage as described in
The parameters ANT_DELAY, FAKE_GNSS, and FAKE_TIME can only be set in the configuration file.
The parameter ANT_DELAY compensates the propagation delay in the antenna cable.
It is possible to force the clock to operate in a "fake" mode, where reception of satellite signal and antenna
connection are simulated. This can be useful during commissioning work, where the clock is required to
operate before antenna installation has been completed.
# GNSS related settings
# ANT_DELAY is the antenna cable delay compensation in nanoseconds (~4 ns for
# each meter of coax cable)
# GALILEO, GLONASS and BEIDOU can be set to TRUE/FALSE in order to enable/disable
# the usage of additional constellations
# FAKEGNSS and FAKETIME can be used to simulate antenna connection and GNSS
# signal reception
# (use for commissioning work only, set to FALSE before normal operation !)
[GNSS]
ANT_DELAY = 60
GALILEO = TRUE
GLONASS = TRUE
BEIDOU = FALSE
FAKEGNSS = FALSE
FAKETIME = 2023-01-01 12:00
Note: Switching between GNSS (and especially away from GPS) may affect the long term accuracy of
the receiver until the next cold start. In normal operation the receiver selects the best models and
corrections from the transmitted auxiliary data (e.g. UTC and ionospheric parameters), basing this
selection on the configured GNSS. Disabling a major GNSS prevents auxiliary data from that GNSS
being refreshed and so it will become stale, resulting in progressively degraded performance. For
this reason, NovaTech recommends that the satellite clock be cold started after any change that
disables an active GNSS, within a few weeks, but preferably immediately. This will ensure that the
GNSS receiver then uses only regularly refreshed information from the newly configured
constellations

Table 26: SNMP settings

GNSS Settings (Online).
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Kronos Series 3