900mhz telemetry, do not use when in groups of people running 900mhz subs

[Sinksalot]

Soon as I confirm this with frsky and TBS crossfire again as Frsky tech support may have got confused by my request. I will Post new information.

[type7]

How many usable channels does it have to work with?

[Sinksalot]

Ok I got new information, this time from team-blacksheep. tech support, They are the people who put out TBS Crossfire. They state there is no upper limit limit to the number of people using TBS crossfire 900mhz, however they also say people should turn off telemetry if close to each other to stop the interference. Then they go on to say. interference should not be a big issue as the crossfire has self-healing algorithms that can detect and avoid interference. Ok that kind of confuse me, first they say turnoff telemetry to stop interference. then they say crossfire has self-healing. So we don't run fast drones, just slow RC subs and even if there is some interference its not like its going to crash and burn. So its just sounds like if we have a lot of people running at Subfest running 900mhz, then if we want smooth running, people should turn off telemetry.

I will be sending Frskry another email as I think they were smoking weed when they reply to my last email. As I think they got confused when I asked, how many frequency channels are there for peoples to use in 900mhz band

[Das Boot]

Crossfire as interference should not be a big deal, since the it has self help algorithms that can sense and kick out intermodulation interference.

Just make sure you’re using the assigned frequencies for the US, which is 902-927 mHz. You can’t use the 868 MHz in ITU-1 (Europe) here.

[Sinksalot]

Crossfire as interference should not be a big deal, since the it has self help algorithms that can sense and kick out intermodulation interference.

Just make sure you’re using the assigned frequencies for the US, which is 902-927 mHz. You can’t use the 868 MHz in ITU-1 (Europe) here.

The only other thing they said was, the interference comes from how close the receivers are to each other, regardless of the frequencies they are on when telemetry is on. But I still feel it not going to be problem for us. But we will know more at the next large event. As some people have moved over to 900mhz.

[Das Boot]

World of difference between running aircraft in the sky, and submarines/surface craft in the water. 99.99% of model aircraft crashes are pilot error. 900 is a solid connection and better penetration compared to 2.4. As far as interference, you would have a better chance of being glitched by a cell tower or baby monitor, than each other.