Campbell Scientific RF401A-Series Spread Spectrum Radios - Manual (Page 30)

RF401A-Series Spread Spectrum Radio
11.1.5 RF Hop Sequence
Specifies the radio channel hop sequence. This setting must match in all radios
in the same RF network. This setting can also be used to prevent radios in one
RF network from listening to transmissions of another.
11.1.6 RF Network
Specifies the RF network. This setting must match in all radios in the same RF
network. Valid entries are 0 to 3 for radios with Protocol set to PakBus Aware
or PakBus Node. Valid entries are 0 to 63 for radios with Protocol set to
Transparent.
11.1.7 RF Radio Address
Specifies the radio address. The radio address is only used when Protocol is
set as Transparent. Radios must have matching radio addresses in order to
communicate. Valid addresses are 0 to 1023.
11.1.8 Power Mode
Power Mode governs the duty cycle that the radio will use for powering its
receiver. As such, it governs the amortized current drain for the radio. Note
that choosing a low power mode that requires a long transmission header for a
network with frequent communications can actually cause a higher average
power draw; a large percentage of the communication interval is spent in high
power transmission.
Power
Mode
Typical
Avg.
Current
Draw Description
Always
on, No
Header
< 15 mA The radio receiver is always on. Additional
wakeup header is never transmitted. Use this
setting in a network with very frequent
communications or when network latency needs to
be minimized.
Always
on, 1 Sec
Header
< 15 mA The radio receiver is always on. A wakeup header
of 1.2 seconds is transmitted at the beginning of
the first transmission occurring after a period of RF
inactivity to ensure that other radios in the network
set to a 1 second mode are awake and ready to
communicate. Using this setting is uncommon,
generally only used in a base radio that
communicates with a CR200-series datalogger
configured with a power mode of “1 second” (no
header).
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