VXA-210 PILOT OPERATING MANUAL
22
The optional Barometric Pressure Unit (SU-1) brings
to the VXA-210 the unique capability of providing
readout of the current barometric pressure. This in-
formation is the used for calculation of your current
altitude, and also used for calculation of your cur-
rent density Altitude using with the temperature sen-
sor.
The Barometric Pressure unit and temperature sen-
sor requires calibration of the “offset” parameters,
so that differences in pressure can be used to calcu-
late altitude. This procedure requires that you have a
calibrated barometer, calibrated thermometer, and
that you know your current altitude. If you are at sea
level, of course, the latter parameter requires no re-
search.
B
AROMETRIC
P
RESSURE
/A
LTITUDE
M
ETERING
Thermometer Calibration
r Press the
[
F
]
key, then press the DIAL selector
knob to activate the Menu (“SET”) mode.
r Rotate the DIAL selector knob to select Menu
Item 14 “TEMP.”
r Press the DIAL selector knob to enable adjust-
ment of this Menu item.
r Rotate the DIAL selector knob to set the differ-
ence (value: in °C) between the VXA-210 dis-
play and the calibrated thermometer. For ex-
ample, if the VXA-210 display shows “24.5 C”
and the thermometer (wrongly) indicates “24.0
°C,” set the TEMP offset to “
–
005”.
r Press the DIAL selector knob to save the new
setting, and then press the PTT key exit to nor-
mal operation.
Notice
The optional SU-1 Barometric Pressure Unit for the VXA-210 measures pressure in the immediate vicinity
of the transceiver. When using the VXA-210 equipped with the SU-1 in a pressurized cabin of an aircraft,
of course, the VXA-210 will not be able to measure outside temperature and pressure, nor display altitude
accurately.
Please rely on your aircraft’s altimeter for such data.
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