Campbell Scientific LoggerNet Datalogger Support Software - Manual (Page 213)

Section 6. Network Status and Resolving Communication Problems
Clear – Clicking this button clears the contents of the right-hand pane.
Start Test – The action taken when this button is activated depends on the
device selected in the network map.
With an RFRemote-PB or RFRemote-TD selected: An RF Link Quality
test will execute on the branch of the network map comprising the selected
RFRemote-TD/PB and the associated RFBase-TD.
With an RFBase-TD selected: The RF Base Codes/RFIDs field is enabled
and the entries in this field will determine the action taken. See RF Base
Codes/RFIDs below.
RF Base Codes/RFIDs: - When enabled by selecting an RFBase-TD in the
network map, the RF Base codes or RFIDs entered in this field will determine
the action taken when the Start Test button is activated.
RF Base codes: Entering a supported command string of numeric values,
separated by a space or comma, will activate the associated Advanced
Features in the RFBase-TD or specified RFRemote-TD/PB.
RFIDs: Entering one or more RFIDs, separated by a space or comma,
defining an RF path will initiate an RF Link Quality test on the specified
path. This feature allows one the option of testing an RF path that, with the
exception of the selected RFBase-TD, may or may not be composed of
devices configured in the network map.
When enabled by selecting an RFBase-TD in the network map, the
Browse button will open the Advanced RF Commands window for
selecting and executing Advanced Features in the RFBase-TD or specified
RFRemote-TD/PB.
6.5.3.1 RF Link Quality Test
Fundamentally, an RF Link Quality test provides an indication of how well the
specific data patterns of an RF test packet have been decoded by each of the
TD-RF modems in the specified RF path. This information, in turn, is
indicative of the relative quality (i.e. Signal to Noise Ratio) of the RF signal
received by the associated FM transceivers.
Before executing an RF Link Quality test, one must first specify the RF path to
be tested. This can be done in one of two ways. If all the devices in the RF path
to be tested are configured in the network map, simply select the RFRemote-
TD/PB that represents the end of the path. (Right-clicking the end of path
RFRemote-TD/PB will simultaneously select the RF path and launch a popup
window for selecting Start Test.) If one or more of the RFRemote-TD/PB
devices in the path to be tested is not configured in the network map, one must
specify the RF path by first selecting the RFBase-TD that is configured in the
network map and then manually entering the RFIDs of each TD-RF modem
along the path in the RF Base Codes/RFIDs field. (See RF Base Codes/RFIDs
above.)
Once the RF path has been designated, the RF Link Quality test is initiated by
clicking the Start Test button.
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