Flarm vs ADS-B for traffic

[RobertGary1]

Just curious what the pro/cons are of each system are. In my Mooney have have ADS-B and get traffic advisories and voice annunications from Garmin. The in the sailplane I have Flarm and it does the same on the ClearNav display. Both systems seem to work very well although ADS-B aircraft can't see Flarm aircraft (but Flarm can see ADS-B). 

One complaint I've heard of ADS-B is that its not precise enough for close flying aircraft. I'd have to agree, getting ADS-B alerts in the pattern. While Flarm is specifically intended to be use by planes circling the same thermal. 

To be honest I get nervous flying my Mooney around the gliderports because I can't see Flarm signals and in the sailplanes we don't carry transponders.

 

 

[Ragsf15e]

1 hour ago, RobertGary1 said:

Just curious what the pro/cons are of each system are. In my Mooney have have ADS-B and get traffic advisories and voice annunications from Garmin. The in the sailplane I have Flarm and it does the same on the ClearNav display. Both systems seem to work very well although ADS-B aircraft can't see Flarm aircraft (but Flarm can see ADS-B). 

One complaint I've heard of ADS-B is that its not precise enough for close flying aircraft. I'd have to agree, getting ADS-B alerts in the pattern. While Flarm is specifically intended to be use by planes circling the same thermal. 

To be honest I get nervous flying my Mooney around the gliderports because I can't see Flarm signals and in the sailplanes we don't carry transponders.

 

 

I think the complaint on close aircraft for ADSB is valid for some targets that don’t have ADSB out, but I find targets with ADSB out show up very quickly and accurately.  The non adsb out targets have to be seen by faa radar and then sent to your receiver by the uat.  That takes a while and the faa radar refresh rate isn’t spectacular as it is.  The ADSB out targets send a signal that your receiver gets directly from the nearby airplane and is very precise.

In any case, I wouldn’t trust adsb traffic around gliders!

[RobertGary1]

38 minutes ago, Ragsf15e said:

I think the complaint on close aircraft for ADSB is valid for some targets that don’t have ADSB out, but I find targets with ADSB out show up very quickly and accurately.  The non adsb out targets have to be seen by faa radar and then sent to your receiver by the uat.  That takes a while and the faa radar refresh rate isn’t spectacular as it is.  The ADSB out targets send a signal that your receiver gets directly from the nearby airplane and is very precise.

In any case, I wouldn’t trust adsb traffic around gliders!

Especially since I’ve never seen a glider with a transponder  or ads-b. Flarm is the standard for gliders