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Nesis III User's Manual
the knob until the altimeter is close to zero
4.2.2
Initial QNH Setting
When QNH is not known but the airfield elevation is known, the QNH can
be approximated by setting the altimeter to the airfield elevation. This gives
a pretty good QNH approximation.
4.3
Radio Standby
This option is available only when Nesis is connected with a compatible radio.
Please refer to the Installation Manual for more details.
The frequency is set in a window as shown on Figure 31.
Figure 31: Setting the standby frequency value.
The frequency is set in three steps. First, value left of decimal point is set,
then first digit after the decimal and finally the last two digits. Once new
frequency is confirmed it is sent to the radio as a standby frequency. In order
to make it active, some minimal action has to be made on the radio.
4
Normally, exact zero can't be obtained as baro-correcting pressure change is made in
discrete steps. One hPa at the sea level corresponds to approximately 8 meters of
altitude.
Figure 30: Setting the QNH value.
51
4.3 Radio Standby
4
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