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« on: February 18, 2010, 12:00:40 AM »
pankaj
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 Salute just want to know.... Giggle
1)i have seen 4ch transmitter there are 4 way movement >Cheesy ...and when i m watching images of 6ch or 10 ch they are also having the same arrangement Roll Eyes ,howcome we can control 10 channels or 6channels from those 2sticks Bang Head

2)some sites say they have mixing feature in their transmitter , Grin so i dont need to use v tail mixer in my system ,is it like that or something else Salute

yes you can laugh at my questions but plz answer if u know even little about my questions Help Me Help Me Help Me
« Last Edit: February 18, 2010, 01:16:48 AM by anwar » Logged

 

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« Reply #1 on: February 18, 2010, 12:04:51 AM »
PankajC
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Only 4 are controlled via joysticks, rest are more of on-off switches that perform different tasks

Pankaj
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« Reply #2 on: February 18, 2010, 12:06:33 AM »
pankaj
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like can we control 9 servos and one motor by a 10 ch tx  Grin
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« Reply #3 on: February 18, 2010, 12:36:04 AM »
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I don't know about others, but my Eclipse 7 has 6 proportional channels and one switched channel
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« Reply #4 on: February 18, 2010, 01:16:16 AM »
anwar
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1.  Each channel typically controls a single servo (or two servos using a Y cable).  But moving of a stick can be used to control more than one channel/servo, using programmable mixes in the radio itself. That is one of the reasons why you have two sticks with typically 4 degrees of freedom, yet you can induce movement in more than 4 channels/servos.  Some more discussion here : http://www.rcindia.org/chatter-zone/no-wonder-some-people-need-12-and-14-channel-radios-!/

Another example.  In a CCPM glow helicopter, when you push the throttle up, 4 servos move. One is the throttle servo, but 3 other "swash" servos also move with just that one stick movement.

2. Many radios support v-tail mixing.  In your case for a quadrotor, you need 3 v-tail mixers (at least as per the design posted by Sai). The real problem is, you are doing mixing of signals that are coming out of the gyros etc, which is all happening in receiver land !  The v-tail mixing supported by radios, mixes stick positions on the radio, which is useless in your case (as there is no way to feed the output from your gyros etc back into the TX for doing the mixing there, and that too, only ONE mixer typically).
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« Reply #5 on: February 18, 2010, 01:21:16 AM »
pankaj
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that was a detailed explanation...thanx
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