The relative relationship of the OBS setting to the compass card
remains fixed and manually set, but now the entire compass card
rotates as a heading indicator.
Construction includes a high-impact composite outer case, 25X optical glass magnifying crystal, and a Mylar compass card
seated on a tiny sapphire bearing that will never wear out Waterproof, weatherproof and highly shock resistant, the unit is specified to work from n40-degrees F.
Since the entire VOR/LOC/GPS display rotates with the compass card, the angular relationship between the deviation bar and the symbolic aircraft fixed in the center of the instrument provides a pictorial display of the aircraft's position with respect to the selected course.
Finally, the HSI compass card can be slaved to a magnetic sensor or non-slaved like your basic heading indicator.
The HSI has a short pointer that you set to the desired course on the compass card
around the outside.
It's more difficult using the deck or glareshield mount and if they don't get it right, it's easy for the compass card
to hang up or stick.
Cobalt's +LM loudness meter software, compliant with ITU BS.1770, ATSC A/85, and EBU R128 standards, operates directly with the Company's Fusion3G and most 9000 series COMPASS cards
to provide a solution for ingest or on-air loudness metering and assessment.
It also includes a pouch pagefinder with weekly compass cards
and a Covey Reference Library CD-Rom for Palm handheld planners.