Spektrum SPM1305 - Manual (Page 9)

9 SPEKTRUM TELEMETRY
Roll Out
Signal Lap # Lap Time
Speed/RPM Voltage Temperature
��������
����
The Roll Out function is the internal calculator that allows rpm
data to be converted to mph. When the Roll Out value is set to
1.00, the default setting, the value displayed on the main screen
and stored in maximum speed, is true rpm of the shaft gear or
flywheel that the rpm sensor is hooked up to. In order to program
the unit to display speed in mph, a conversion factor is needed.
Following are two methods of determining the conversion factor:
Method A
• Mark the gear or clutch bell that the sensor is reading from
with a small reference mark. A marker works well.