At 16:57 24/10/2005, Mark wrote:
It's meant to be used by anything with wings.
It isn't designed for gliding, so my guess is that it'd have lots
of false-positives.
(Amos) I've just heard about the FLARM device
(http://www.flarm.com/index_en.html)
which requires to have such a device on all gliders in the area in
order to be
effective (I suppose these are similar requirements to the above?).
No, the FLARM is completely self-contained -- no need for a separate
transponder.
Correct in part - while FLARM (or the local development OzFLARM,
which works on a different frequency within the same band, and will
interface with TCAS) does not require a Mode C/ Mode S transponder,
it will only detect other FLARM units - so will not detect a
non-equipped glider!
The unit contains an internal GPS engine and transmits GPS position
about once a second. It also receives other units' position over a
range of around 3km and displays them as a conflict alert when they
get too close.
It is definitely NOT a replacement for external scanning, and is not
useful in a crowded thermal, but can help identify where to look
whilst cruising or thermalling 'alone' or with small numbers of others.
Price, according to Nigel Andrews, will be very competitive, and it
will also interface to a PDA to act as a backup logger. The trials
at all Nationals plus the NSW comp next month should give plenty of
opportunity to evaluate it in Australian conditions.
Wombat
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