Introduction
The ASV-1 is a 2 1/4” (57mm) sunlight readable encoding altimeter, airspeed and wide range vertical speed indicator.
The altimeter contains an internal high accuracy 24 bit digital altitude sensor which calculates altitude from -1500 ft up to
a maximum of +35000 ft. The ASV-1 outputs various formatted RS232 serial data protocols compatible with serial input
transponders such as that from Garmin, Magellan, Northstar, Trimble, Microair etc. The altimeter can display altitude in
feet or meters and local pressure can be set in millibars or inches of mercury
The VSI indicator can be displayed in either feet/minute (ft/min) or meters/second (m/s). The VSI can be calibrated by the
user once the instrument has been installed in the aircraft.
Airspeed is based on the pressure generated by a pitot tube system and a static port is provided as well for use by high
speed aircraft. The ASV-1 can measure airspeed from 20mph to 250mph (Version 1), 20mph to 350mph (Version 2) and
20mph to 320mph for the ASV-1HS (High Speed version). All are well suited to slower aircraft due to very good sensitivity
and linearity at low air speeds. Airspeed can be indicated in statute miles per hour (mph), kilometers per hour (km/h) or
nautical miles per hour (kts). The ASV-1 also provides a programmable Vs and Vne airspeed alarm output. ASI sensitivity
can be calibrated by the user to cater for errors caused by pitot tube placement.
In addition, the ASV-1 provides an encoder test function, flight timer since takeoff and records the maximum airspeed
reached. The ASV-1 provides a parallel Gillham code interface when used in conjunction with the MGL Avionics CNV-ALT.
Please note that the ASV-1 Version 2 replaces both the ASV-1 Version 1 and the ASV-1HS (High speed) unit.
Vega ASV-1
Altimeter, Airspeed (ASI) and Vertical
Speed Indicator (VSI)
Operating Manual – English 1.13
