On Mar 12, 7:38*am, "Paul Remde" wrote:
Hi Alex,

The traffic data is sent out of each unit all the time. *A FLARM unit on the
ground can receive the traffic data from all nearby FLARM units and send the
traffic data out its serial port - whether the nearby traffic is a threat or
not.

In the air, I can see all the traffic in the area on my FLARM display -
whether the nearby traffic is a threat or not.

However, I don't know how much range you will have if your FLARM is on the
ground. *Ground obstructions will likely limit the range quite a bit. *But
it would be a neat way to keep track of all your club's gliders - at least
the ones that are nearby.

Best Regards,

Paul Remde
Cumulus Soaring, Inc.
____________________________

"Alex Kemp" *wrote in message

...

Hi there,

I’m getting a bit confused about what is broadcast and what can be
done with the data provided.

The main question is:
• Can I (from a ground station equipped with a Flarm connected to a PC
via a serial link) see other gliders around/above me in real time, and
display these on my own digital map for collision avoidance purposes.

I had planned to use my known position on the ground and the relative
distances in the PFLAA sentence to work out where the aircraft is, but
I understand that that info is only published if the aircraft is a
threat, is this true?

If this cannot be done, what’s the point of the data port spec?

Many Thanks and apologies if this is in the wrong place

I guess I don't understand why you, at a PC on the ground, need a
digital map for collision avoidance purposes (sounds like ATC)...
However, at Uvalde before launch, we watched the progress of the
sniffer on PowerFLARM - including rate of climb - on the small
rectangular display of one of the competitors. You, of course, only
see other FLARM equipped gliders within your line-of-sight.

My PowerFLARM Brick is connected to an Android (dell streak 5) phone
running XC Soar (via an IOIO board), and I can see, on my moving map,
the flarm targets (assuming I have the settings correct and am on the
correct page). One of the other competitors in Uvalde had connected
his PowerFLARM directly to his LX9000 for a neater cockpit, and
another pilot I know uses the LX8000 as his PowerFLARM display. The
data port spec seems to work well.