Radioretries; Radiorssi - Campbell CR300 Series Product Manual

1 Second: The radio wakes every 1 second for a 100 msec interval to listen for RF activity. It will
transmit a 1200 msec wakeup header with the first transmission following a period of RF
inactivity.
4 Second: The radio wakes every 4 seconds for a 100 msec interval to listen for RF activity. It will
transmit a 4200 msec wakeup header with the first transmission following a period of RF
inactivity.
Long data type
l
Where to find:
Settings Editor tab in Device Configuration Utility: Radio > Power Mode
l

18.3.58.11 RadioRetries

Specifies the level to which the radio should retry to deliver an unacknowledged RF packet
transmission. When an RF packet fails to be acknowledged by the destination, the radio will
resend the packet again. A receiving radio responds to the sending radio with an ACK packet for
every radio packet that it receives that is addressed to it and has a valid CRC. Retry levels and
counts:
None - 0
l
Low - 2
l
Medium - 4
l
High - 6
l
Set Retry Level to None when the Protocol setting is set to Transparent for the purpose of
communicating with other RF407 series radios.
Long data type
l
Where to find:
Settings Editor tab in Device Configuration Utility: Radio > Retry Level
l

18.3.58.12 RadioRSSI

Indicates the signal strength of the last packet received by this radio.
The units of the RSSI are dBm; -40 is a stronger signal than -70. Because the received signal
strength can vary due to multipath, interference, or other environmental effects; this setting may
not give a true indication of communication performance or range. However, received signal
strength can be useful for activities such as:
18. Information tables and settings (advanced) 177