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HomeAircraftHelicopterBeginners Corner › another dumb question: tx 9ch vs 6ch
10-14-2005 02:19 PM  13 years agoPost 1


Lier, Belgium

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just because I'm a curious little fella...
(that wants to chat with the big boyz )

I have a 6ch TX, which is used for:
3 chs for head servos
1 ch for gyro/tail servo
1 ch for throttle
1 ch for gyro switch (normal/HH)

So, what do you typically need the extra 3 channels on a 9ch tx for?

Are they really needed for basic functionalities on big/nitro helis?

Or are they mostly used for gizmo's like switching lighting or retractable landing gear, .. ??? ...

(I'm just wondering what I'm looking at if I ever want to upgrade..)

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10-14-2005 02:32 PM  13 years agoPost 2


Jacksonville FL

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In flight mixture control

Just some examples

AMA 77227

10-14-2005 03:02 PM  13 years agoPost 3

rrElite Veteran

Oslo, Norway

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More examples:

Take picture with remote camera, tilt camera, drop baloon, ...

What comes around goes around.

10-14-2005 03:31 PM  13 years agoPost 4

rrElite Veteran

Long Island, N.Y.

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Sometimes a higher channel radio isn't purchased for the extra channels. Not to long ago the Futaba 6 ch didn't have a five point pitch and throtle curve, so you had to by the 9. Then the 7 came out and there really isn't much need for the 9. However, the 9 shows all five points of a curve on one screen along with a graph. The 7 ch has no graph, and can only show 3 of the 5 points on one screen. So sometimes a radio is purchased for reasons other than the number of channels.

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10-14-2005 04:03 PM  13 years agoPost 5


Lier, Belgium

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Marc - I see what u mean

I was lucky to stumble upon the then freshly delivered graupner MX-12 (=JR XP6102)

It's a 6ch tx but it has the double rate, 5-point throttle and pitch curves (w graph display), servo graph (u can see the mixes), 10 progs, 2 modes, Expo, Revo mix, 2 programmable custom mixes..... etc etc etc

In short, everything the 'big' 9ch tx'es have (so the guy at the shop told me) but for a really democratic price (185 € introduction price I think that is less than $200)
(he said the only diff with the 9ch tx he used himself was 'a couple of extra switches that u don't need' )

But he did tell me this was like the first of this new generation 6ch transmitters that have all those ops and that in fact before people needed to buy 7-9ch to have that.

And I read some good comments about this tx on the net - so I guess I was lucky then eh

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