Signal; Set Up The Atmospheric Correction - Titan TTS2 Manual

appear as followed.

3.5 Signal

The function of signal is to display the intensity of signal of
EDM (Electrical Distance Measurement). It can help achieve ideal
aiming result under poor conditions. If it is too difficult to be found,
using signal can easily aim at the target.
Continuing with the explained operation in 3.4, you may press
[Signal] and the intensity of signal is displayed in the 'Signal' column
above. The minimum measurable intensity should be 1. Being less
than 1 indicates that the target cannot be aimed and measured. You
can press any other keys to quit signal detection.
* Range mark: If the end of the signal line as shown above, this
mark is the distance Range identifier, where R4 represents 400m, L6
stands for 600m, L8 stands for 800m, and so on.

3.6 Set up the Atmospheric Correction

When measuring distance, the measured value will be influenced
by the atmosphere. In order to reduce the influence, a atmospheric
correction parameter is needed.
Temperature: the surrounding atmospheric temperature
Atmospheric pressure: the surrounding atmospheric pressure
PPM: the calculated and predicted atmospheric correction
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