On Aug 19, 6:19*pm, Darryl Ramm wrote:
On Aug 19, 8:19*am, Mike Schumann
wrote:
[snip]

BTW I don't want to get sidetracked here but the current USA rules
have not kept track with technology and as a result are strange in how
they do not for example strictly prohibit an ADS-B traffic receiver
(since it is not a "two-way communication device"), but by banning
"two-way communication devices" they do currently prohibit Flarm based
devices. As Dave says I suspect the rules committee understand the
issues.

Well darn I did get myself well sidetracked by typing this too fast. I
meant to say that I think actual interpretation of the USA contest
rules are strictly ambiguous. e.g. allowing two-way communication
products that report position but not being clear whether that means
reporting position our of the glider or into the glider or both. And
an ADS-B receiver to use ADS-B direct data from other aircraft is
currently allowed since it is not a two-way communication device.
Anyhow clear that the contest rules folks need to work on cleaning up
the rues whatever the future intent is.
[snip]

Darryl