2011 USA Proposed Competition Rules Changes Posted.

Andy,

There are commercially available systems on the market. Here is an example.
http://wa8lmf.net/aprs/TH-D71.htm Kenwood makes a couple other APRS models, but none as compact as the TH-D71. ICOM D-STAR series are also off-the-shelf APRS options.

BTW, this is my last comment on the APRS issue.

Wayne
HP-14 "6F" W7ADK

"Andy" wrote in message ...
On Dec 28, 8:47 am, "Wayne Paul" wrote:
"Andy" wrote in message news:7205138d-41a2-401d-bc7b-

... Snip ...



Back to APRS, they are commercially available. Maybe I should
have said the off the shelf components are available. (It is kind of like
hooking up a Garmin 12xl to a EW Model D.) The tall pole in the tent
for many is the Amateur Radio license requirement.

Wayne
HP-14 "6F" W7ADK

I think 6.6.3 needs some work but maybe that won't happen for 2011.
6.6.3 relates to the prohibition of 2 way communications devices but
it also includes anti collision devices. These were probably included
in this section because FLARM is a 2 way device. However the ZAON MRX
is a passive receiver and not a two way communication device. It does
not belong in this section, or in the appendix that qualifies this
section.

There seems to be a case for moving anti-collision devices to a new
section and not including them under the prohibition of two way
communication devices. Maybe also need a separate section for
position reporting devices so that APRS can be either allowed or
prohibited. The section on APRS would need to address whether in air
reception of APRS reports is allowed.

The current rule appears to prohibit the carrying of a 2m amateur
band transceiver whether it is used for APRS or not.

Andy

I guess I was reading 6.6.3 a bit differently. The allowed devices type "A air-to-ground position reporting device" to me would include an APRS system. I didn't consider the fact it used the 2 meter frequencies and equipment a disqualification.

Wayne

It may be prohibited because the transceiver used for the APRS radio
downlink is a 2 way communication device that is not an aircraft band
VHF radio and it provides in flight communication capability other
than the APRS position reporting function.

Maybe that obstacle can be overcome by making it impossible for the
voice communication capability to be used in flight.

However you may still not be permitted to use an APRS system that was
made up of multiple modules since that is not "a commercially
available model". I suppose you could always offer to sell copies of
your favorite system

As I said earlier, position reporting needs a separate rules section.

Andy

As I said earlier, position reporting needs a separate rules section.

Andy

Boy, I hope not. A lot of pain went in to current rules. It's next to
impossible to write broad rules that encompass all the equipment that
people might use now or invent in the future.

Instead, if you have a piece of equipment you really want to use, just
ask the CD for permission. If the CD isn't clear on what to do, ask
for a waiver. Explain why you want to use it and how it works. If the
function is reasonable and consistent with the philosophy of what is
currently allowed -- if, for example, it's there to help crew find you
if you land out -- the answer will probably be yes. If the equipment
is useful for others it will make its way into the rules. That's how
spot evolved. Ham could evolve the same way.

If the function violates the intent of the rules -- if the equipment
can be used as a two-way data link to your ground command station, two-
way video sharing to your teammate, etc. -- the answer will probably
be no.

There is also a reasonable demand to keep rules simple!

John Cochrane