For the TTD coming in 2 weeks, is there a comm we can all (or mostly all) use for group rides, and that sort of thing? Perhaps an online app if there are too many various users of different hardware?
Group comms have been an issue for some time (CB was the most reliable, but that ship has sailed for most of us). Weíve tried (and some of us continue to work on) GMRS radio systems.
BT is a non-starter (crazy linkages to get bigger groups connected, constant dropouts, etc).
Mesh is promising - a couple of groups that I ride with have standardized on the Sena 30K and it works, although range isnít great (especially in the mountains) and users have to disconnect from and reconnect to the mesh a few times per day when their words becomes unrecognizable. My biggest issue with Senaís mesh is that mics are hot all the time (you can mute, but it takes 1 second to unmute, which can be an eternity when things go sideways). I love that the mesh is self-healing, so you donít have the BT single point of failure issue.
Iíve heard good things about the Cardo Packtalk, but I donít know anyone whoís used Cardoís mesh in a group of more than 3 riders. Unfortunately, Cardo and Senaís mesh donít seem to, ahem, mesh together, so if a group has multiple riders with both brands you can have a mesh running for each brand, then have a rider from each brand BT together, thus theoretically joining the 2 mesh networks, but now youíre back to that single point of failure.
For the spirited group, I plan to have Sena mesh and GMRS available for comms.
To what online app are you referring? If thereís a better way to skin the cat, Iím in!
Edit: are you referring to mobile phone apps like Zello or Garminís RideConnected? If so, they donít work where theyíre needed most - in the mountains - since cell coverage is spotty (letís not get into the ďfeaturesĒ that plague RideConnected).