Peter wrote:
You can’t radiate an “uncertified” ABS-B OUT signal (SIL=0) via a Mode S TXP.This is nothing to do with Powerflarm however.
I am not sure you´re correct about the part “..You can´t radiate..”.
The way I read Trigs FAQ answer is that you can indeed use a non certified (FLARM GPS) to “radiate” ADS-B-out (as SIL=0) in their mentioned Mode S transponders.
See Trig (OEM) statement about using FLARM GPS:
https://www.trig-avionics.com/support/support-faqs/ads-b-faqs/
“Can I use my FLARM GPS as a position source?
Yes, as long as you are not trying to meet any regulatory requirements. Most FLARM devices output GPS data using the NMEA protocol which is compatible with Trig transponders.
All Trig transponders look for $GPRMC NMEA messages.
Note – this GPS source gives you SIL = 0 , which is ignored by certain ADS-B In traffic receivers. Additionally, for US customers, SIL = 0 does not qualify you for either a traffic or weather uplink.
Trig recommends the use of the TN72 or TN70 which are visible to all ADS-B In traffic systems.”
Xtophe wrote:
Xtophe28-Oct-23 14:1552
Yeager wrote:
Are any of the available Traffic Collision Warning systems (such as PowerFlarm Fusion etc.) able to connect to the Trig TT31 (ADS-B out capable) Transponder and be used as the GPS source (SIL 0 or SIL 1+) for the Transponder?
The various “Flarm” boxes output the typical GPS NMEA messages on their output in addition to the traffic ones. The Trig transponder accept NMEA as GPS input. That will be SIL=0.
Peter wrote:
You can’t radiate an “uncertified” ABS-B OUT signal (SIL=0) via a Mode S TXP.
I think you can, if your GPS source is uncertified.
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SafeSky uses the same principle as PilotAware – getting the traffic info from the ground. Although PAW does it slightly better as the reception of their ground signal is better at altitude.
This is incorrect.
Pilot aware detects most things directly, and ‘live’
There are significant enhancements when in reach of a ground station. However the lates version means you only need to be in range of another PAW aircraft that can ’relay’a ground station to you that you may be not in range of.
I’m only interested in the main feature set but the other stuff is very useful.