MoTeC BR2 BTX - Manual (Page 36)

34 Appendices
Any other code indicates an internal problem
BR2 Valid Receptions
The number of valid beacon patterns received in 50ms. This gives a good
indication of signal quality and signal strength. The maximum number that can
be recorded is dependent on the beacon Mode and ID, but never exceeds 21.
Normally at least 10 receptions should be received and the number of
receptions should be consistent from Lap to Lap. Note that the number of
receptions will reduce slightly at very high speed.
If the number of receptions is low, it could be due to the Transmitter being
placed too closely to another Transmitter.
Sent once per Beacon event.
BR2 Beacon Number
The Mode and ID of the most recently detected beacon transmitter. If this
channel is logged it will show all Beacon transmitters that the receiver detects.
BR2 Beacon Number = Mode x 100 + ID.
Sent once per Beacon event.
BR2 Beacon Count
Increases for each unique beacon detected. If this number jumps by more
than one then a weak beacon was received that did not meet the criteria for a
valid beacon which is at least two beacon patterns in a 50ms window.
Sent once per Beacon event.
Battery Voltage at BR2
The power supply voltage at the BR2
Must be in the range 6.5V to 15V (8V preferred).
Additional Messages
The following messages are useful for detailed diagnostics.
BR2 Detection Time
Gives an indication of the beacon beam width – this is the time between the
first reception and last reception of the beacon pattern while in the detection
window. This should normally be at least 25msec. The maximum is 50ms.