I should know this but if 2 drones are operating in the same general area (on occusync 2) is there any danger of an interference in control?
Thanks
NO
*short and to the point
Ta
Short and to the point…

If they did, all our club meet-ups would go very, very wrong 
Yeah, apologies for the newbie question.
I had to check and I couldn’t find the info easily.
I remember when I used to fly RC powered aircraft where we used to have to be careful on who was operating on what frequency.
That was an awful lot of years ago!
I’m glad the new tech does not have that issue.
Now I have 2. Should we decide to fly them both together, are there any issues to bear in mind? Is it advisable to set one on 2.4GHz and one on 5GHz or will they play happily both on the same frequency? I guess it’s something that model flyers come up against all the time.
We have countless meet ups Andrew, with 10+ in the sky at any one time.
Not an issue 
Thanks Rich. That’s reassuring. Oh, and then there’s the Hogmanay display!
I really should get my brain in gear before I ask stupid questions! Cheers.
I would say yes and no.
Most commercial drones use WiFi or other bi-directional data link. Two drones operating on the same channel have the capacity to interfere with each other BUT the protocols used allow the drones to distinguish between the wanted signal and the unwanted one. This will place a bit of a burden on the two drones which may increase the latency and decrease the usable range.
Now suppose you have two totally dissimilar signals on the same channel, such as an analog video signal and a WiFi signal. This actually happened while I was flying a Spark when another member fired up his race quad in close proximity. The result was my Spark immediately went into failsafe and the other guy had no video feed. Thankfully the other guy was still on the ground and my Spark just did it’s autoland thing.