2. For hang glider pilots there is a built-in pitot pressure indicator, which measures the indicated airspeed
(IAS) and is capable of showing speeds of up to 94 mph (150 km/h) on the digital display and 19-68
mph on the analog speed scale. However, this sensor only begins to work at 19 mph (30 km/h). If
necessary, the pitot tube can be extended with a flexible hose to a turbulence-free spot on the glider.
For caged gliders an optional hang gliding vane wheel sensor can also be plugged into the port on the
left side of the unit.
It does not matter which sensor is used since both speeds (TAS and IAS) are always internally calculated. Should
you be unfamiliar with the difference in these concepts, please refer to: E3 True or Indicated Airspeed in the
appendix. Both speed sensors can be adjusted with a correction factor (Menu/Basics Settings/Speed gain vane
wheel or pressure). The factory setting is 100% for both sensor options.
A5 Stall Alarm
The stall alarm threshold, the air speed below which the stall alarm will sound, can be adjusted in the Set-Up Menu
(Menu/Basic Settings/Stallspeed). An altitude threshold, the altitude below which the stall alarm feature will be
active, can also be set in this menu. To disable the stall alarm set the air speed value to 0 mph (km/h). The trigger
point for the stall alarm is always linked to the indicated airspeed. At greater altitudes, i.e. in thinner air, the alarm
will sound earlier (i.e. at a higher flying speed) than at sea level. (Please refer to: E1 Stall Alarm in the appendix).
A6 Sounds and Volume Level
Each time the key /Menu is pressed briefly the volume level is increased by 25%. The adjustable sound levels are: 0
- 25% - 50% - 75% - 100%. The value of the chosen volume level is displayed in the status line. All of the sound
effects described in this section can be heard in the simulation mode.
Automatic volume control: The basic sound levels of 25%, 50%, and 75% will slowly increase automatically once
the airspeed exceeds 25 mph (40 km/h) but never greater than 100%.
Ascent Tone: The ascent tone starts when the climb rate exceeds a predetermined threshold. The ascent tone
threshold (the lift value that must be exceeded to start the ascent tone) can be changed in Menu/Basic
Settings/VarioOffset. The greater the Vario Offset value the greater the lift needed to start the ascent tone. As
greater lift is encountered the frequency of the ascent tone will increase at a predetermined rate (Modulation). The
tone-pause (beep…beep…beep) ratio is 1:1. It is possible to set the frequency of the ascent tone between 600 and
1400 Hz in Menu/Basic Settings/Sound/UpBase F.
Modulation: The rate at which the pitch of the ascent tone increases as increased lift is encountered is called
modulation. The modulation of the ascent audio can be adjusted to values from two to nine under Menu/Basic
Settings/Sound/modul. The higher the value, the faster the frequency will increase as the lift values increase. A
modulation setting of nine will yield more audible change at lower climb rates making it best suited for use in mild lift.
Conversely, a modulation of two will yield more audible change at higher climb rates, which will be better suited for
strong lift flying. The factory setting is five.
Pitch: By altering the pitch value (between 1 and 7) the user can customize the beep/pause length. A pitch setting of
one will yield a longer beep with a longer pause between beeps while a setting of seven will yield a shorter beep with
a shorter pause between beeps. The pitch value may be set under Menu/Basic Settings/Sound/Pitch.
Sink tone: The sink tone (alarm) is continuous and decreases in frequency as the sink rate increases and increases
in frequency as the sink rate decreases. The sink alarm can be toggled on and off by briefly pressing the /Route
key. When the sink alarm is turned on, the 5030 will sound a sample tone and the analog vario display will show the
sink alarm threshold. Under Menu/Basic Settings/Sink Acoustic you can choose the threshold at which the sink
alarm will sound. The pitch of the sink alarm can be changed under Menu/Basic Settings/Sound/ DownBase F.
Acoustic Integrator: dampens irregular sound patterns during rapid vario movements (piano effect). The settings
are from 1 to 35 and the factory setting of 8 can be changed under Menu/Basic Settings/Sound/acoust. Integr.
High values result in a smoother but somewhat delayed sound pattern.
Stall alarm: is a pitch tone of medium frequency with a very fast interval rate and is always at full volume (100%). For
more details read El Stall Alarm. This sound is not adjustable.
