solentlife
First Officer
Flight distance : 1087530 ft
Latvia
Offline
|
Here we go again ... I'm the abrasive a*****e .....
"The truth is, the controller shoots its signal out blindly. It doesn't know where it's going, what's receiving it, or what happens to it. "
As with any other radio transmitter - correct. But the signal has an identifier that is used by the Aircraft to know which Controller to listen to ... reason you have a LINK button to set Aircraft to know it.
" What that means is you can have two, three, four, or ten aircrafts linked to a single P3S 5.8 controller or a single P2V 5.8 controller. In fact, I have two aircrafts linked to my single 5.8 controller right now and they each fly perfectly and have been for months. "
I have 16 aircraft on one TX, 8 on another, 18 on another ... in fact I have over 53 models all ready to go setup on 6 radios ... so ? Even if you had Model Match - you could still do exactly what you describe - it is no indication of Bind vs Link ... It just means that you have pressed the LINK (Bind) button on those aircraft and set the Controller to LINK (bind) ... nothing strange about that.
Link / Bind ... its a word.
I can link / bind an infinite number of Rx's of any of my models including this but it does not mean it does not identify the item ...
We have a bunch of P3S at our club all fly and often at same time ... they NEVER interfere with each other. We even have 5.8 FPV guys flying out miles and never a glitch because of our 5.8 DJI ...
The Link button that you use on the Aircraft is performing the same function literally as the Bind button on a FrSky or other Rx ... along with the actions taken on the controller. It is identifying the controller to the aircraft. The aircraft then responds to that controller alone.
IF as you say Mark - there was possibility of one controller interfering with another model - DJI would be warning you about it in the manual OR possibly liable to all sorts of Lawsuits !!
C'mon think about it ... nothing abrasive about it ...
You think that DJI don't use the industry standard bind ? They just call it Link !!
"So, if a P2V is flying around, and somebody shows up with a P3S, it's possible the frequency and channel that is being used by the P2V is also the one being used by the P3S."
this is true of ALL 2.4 .. 5.8 ... 433 etc. etc. etc ... but because of the Bind or as DJI call it "Link" ... the Aircraft rejects the other controllers signals as it does not match its CODE link (bind) ... it acts on code data sets it receives on the carrier. The OP is talking about a P3 .. so whatever the P2 does as long as it does not swamp the whole 5.8 band used - it has effectively no effect on the P3 except : When its P2 signal hits same frequency - if the data set is not preceded by the ID code expected - then the P3 aircraft will reject it as not same as its bound controller and for that nano sec will wait for next data set .. it happens so fast that we do not notice it. 2.4 and 5.8 do not 'sit' on one fixed frequency like the old FM / AM days ... we've moved on from that.
The specs for the P3 show the freq range used to have connection but DJI do not publish how many hops or steps it uses in the range - so that is open for speculation. If DJI was not using any freq hop then we would not be able to fly simultaneously. But given that we can fly dozens at same time ... it shows are. There is no other way. That then has to use Bind or Link as you call it to identify.
Sorry Mark - please check out how these high frequency setup's reject / accept signals. I am always ready to accept being wrong when proper proof is presented on any matter ... but having one controller linked to more than one aircraft is not as I have explained.
And sorry if you think I'm abrasive ... that's just me ... too old to change now !!
Nigel |
|