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HomeRC & Power✈️Aircraft🚁HelicopterFlybarless Rotor Head SystemsBrain iKon › Full receiver used with Brain?
08-13-2019 02:00 AM  5 days ago
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meowguy

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Saco, ME

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Full receiver used with Brain?
I was curious to see this on the Align Facebook Page. A guy had a regular Spectrum Receiver connected to a Brain controller on his heli. Can anyone explain why he would run that combo? Why not just connect the Spektrum remotes to the Brain?

Also, very glad to see RR is back. A tremendous asset for the hobby.
"Sweet dreams and flying machines in pieces on the ground." J. Taylor
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08-13-2019 01:59 PM  4 days ago
Ivan

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Wichita

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Because it's what he had on hand possibly.

Because Spektrum satellite wires are so flimsy and fragile they're a guaranteed failure at some point...?

Because just using satellites doesn't give bidirectional telemetry for integration (if it is a 4649T receiver, it's probably this)?
Synergy E7 and 516
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08-13-2019 05:28 PM  4 days ago
meowguy

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How does one connect the two together?"Sweet dreams and flying machines in pieces on the ground." J. Taylor
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08-13-2019 05:49 PM  4 days ago
wjvail

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Meridian, Mississippi

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As Ivan said, probably because he had one. I have a Futaba R7008SB connected to my iKon. A much smaller and cheaper R7003SB would have been sufficient. A 7008 is far more receiver than required but it's what I had. I find that a 7008 will always replace a 7003 but the converse is not true. For that reason I have a lot more 7008 receivers lying around.

As for how it's connected, someone else will have to help. I'm not a Spektrum guy. I assume it would very similar to how a Futaba S.Bus is connected.

"Well, nothing bad can happen now."
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08-13-2019 05:54 PM  4 days ago
ticedoff8

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Morgan Hill, CA. USA

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Full receiver used with Brain?
I was curious to see this on the Align Facebook Page. A guy had a regular Spectrum Receiver connected to a Brain controller on his heli. Can anyone explain why he would run that combo? Why not just connect the Spektrum remotes to the Brain?

Also, very glad to see RR is back. A tremendous asset for the hobby.
If this is a "Brain" and not a "Brain2", there is no advantages to doing this - none at all.
But, it may be that they don't understand this or don't trust the recommended "best practices" method.

Using a standard external receiver is actually less reliable and disables at least one Brain feature.

If this is a "Brain" and not a "Brain2" using an SRXL enabled receiver is not an option.

If this is a Brain2, then there may be one advantage:
The Brain2 has bi-directional SRXL.
I've used an AR9030T as the external receiver for a Brain2.
Why?
Because the AR9030T uses SRXL and supports 3 serial remote DSMX "satellite" receivers. With the one built in, that's 4 receivers online.
I used it for a couple of weeks.
If you fly a large scale heli (with lots of CF), having 24" leads on the Sats allow you to place them at optimal locations on the airframe and you have 4, fully redundant receivers on-line. You also get basic telemetry back to the transmitter. Additionally, if you add the Castle Creations X-Bus link, you get the ESC data back too.
Finally, there is 1 connection between the AR9030T and the Brain2 and the Brain2 retains all of its features.
But in the end, I changed back to the SPM4649T + 2 serial remote DSMX "satellite" receivers connected to the Brain2.

But, if the FB pic shows a Brain (not Brain2), there is no logical reason to do it that way.
+ > ÷
Believe 1/2 of what you see and none of what you hear.
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08-14-2019 02:47 PM  3 days ago
meowguy

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It was a Brain2. How is the connection made? Is it just a two ended male servo lead connecting the two."Sweet dreams and flying machines in pieces on the ground." J. Taylor
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08-15-2019 06:17 AM  3 days ago
ticedoff8

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meowguy...
How is the connection made? Is it just a two ended male servo lead connecting the two.
Assuming the external receiver in the FB picture supports SRXL, then yes.
It is a single M-to-M connection between the receiver's SRXL port and CH3 on the Brain2.
This allows something like an AR7700, AR8010T / AR9030T (or some other SRXL enabled) full size receiver to connect via a single connection.
In that case, the serial DSMX remote receivers would connect to the external receiver (not the Brain2), all of the servos connect to the Brain2 (not the external receiver) and all of the transmitter's channels would be sent to the Brain2 for decoding.
+ > ÷
Believe 1/2 of what you see and none of what you hear.
Fake News will be the downfall of our Republic!
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08-15-2019 11:03 AM  3 days ago
meowguy

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Thank you."Sweet dreams and flying machines in pieces on the ground." J. Taylor
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