do I need a Y cable to receiver to connect 2 sv2's?

joe

joe

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I was looking through that manual (almost got one before my dx3r)...
and I'm not sure that radio allows for throttle channel mixing; just steering channels.
it looks like you can mix channels 1 and 4, or 2 and 4...
it states 2 and 4 are for brake mixing, but 2 is the thottle channel.
:eek
 
KingClod27

KingClod27

Well-Known Member
How many different receivers can you conncet to the DX3r? Im sure at the most I would only need it for 4 trucks... just curious I dont know too much about it or the DX3r pro.

It might seem to make sense to spend the money on a great TX and just have to get a receiver for any new truck...espcially if you have to do the mixing or anything else crazy....might have to just invest in that
 
Jerry Matoon

Jerry Matoon

Well-Known Member
KingClod27 said:
How many different receivers can you conncet to the DX3r? Im sure at the most I would only need it for 4 trucks... just curious I dont know too much about it or the DX3r pro.

It might seem to make sense to spend the money on a great TX and just have to get a receiver for any new truck...espcially if you have to do the mixing or anything else crazy....might have to just invest in that
Click to expand...
DX3r has 30 model memory. and that is model recognition. So if you don't have the correct model selected; the one you powered up won't go ballistic :)

And I am just shy of 30 :( time to start saving my pennies again

Jerry
 
northerngames

northerngames

Well-Known Member
I wrote novak to see if it works with other esc and explained I had the dual sv2's and a 4 channel radio set but with no aux/mix channel on the case but I do have the V-tail mixing and elevon mixing and then I got this for a response.

You'll need some sort of basic mixing to do what you need to.You can use "any channel" to operate an ESC, it's just like a servo.

I then wrote back so since I have the extra channels will this dig unit still work with a sv2 and awaiting the reply.
 
Jerry Matoon

Jerry Matoon

Well-Known Member
Taken from the Dig Unit Description:

Operation:
The Dig Unit interfaces between any two sensored or non-sensored brushless or brushed systems; the Dig can even operate on one brushless and one brushed system. The Dig mixes the throttle channel with a three position, or proportional, third channel. The transmitter does not need a mixing function to operate The Dig. All of the mixing is done within The Dig Unit itself.

Sooooooooooo the question I would ask is: "Who wrote the description; and whom is right?"

The person that states you can ustilize it with a simple 3 channel controller or the person that replied to your email stating you need the mixing function.:conf

Jerry
 
northerngames

northerngames

Well-Known Member
here was their followup to the prior.

Well, if you have a 3 position switch available, you can use the Dig Module, to operate any Dual ESC's.

I am assuming he means the TX.

I am a little confused still lol.

I need to see what castle say's too.
 
northerngames

northerngames

Well-Known Member
I wrote castle and asked for different methods of getting a dual motor dual esc dual servo and bec 20amp to work properly radio wise.

I explained it seems $300.00 dollar radio gear is the only option but then I see other say use a Y splitter and there fine while others say these particular esc dont like the heavy loads.

one guy said he used a y splitter and removed the red from one of the two esc and was good while another was running a bec and had to remove both red wires.

but i want to know what castle say's.

from what I am getting from other is any extra channel you normally dont have on a 2 channel is pretty much a aux channel so if I have a 6 channel I have 2 servo channels a throtle channel and 3 aux channles if you will because when it comes down to it there all the same thing?
 
northerngames

northerngames

Well-Known Member
this is what castle wrote back when I asked them what is the correct way and method or suggested to run two sv2 and asked about the mixing and y harness and this is what I was told:

Whether or not you can run two ESCS off of the throttle channel with a Y-harness depends on how strong the signal is from the receiver. This varies with receivers and we don?t know which will work like this and which won?t this will take experimentation by users, we do not test receivers. If a receiver will not run two ESCS off the throttle channel the only option is to split the ESCS between receiver channels. To then get them both to run at the same speed is a mixing function on the transmitter, again something outside of our testing or ability to recommend.

so my next few questions are.

and do you mean from the reciever to the esc signal strengh or from the reciever to the transmitters signal strengh?

also what is the recommended rating or considered required strong signal that is needed in order for these to run correctly and how do I go about measuring that signal power?

beings they cannot tell me what reciever's have this "strong signal" they can tell me how to measure that and what rating is required for that "strong signal"

perhaps there is a way to manually up the rating but I need to know how to meaasure it and what it required to be good to go first.
 
northerngames

northerngames

Well-Known Member
so here's the next castle followup with the good info

Signal from the receiver to ESC controls the ESC. Any receiver will put out the minimum 3.8 volts (usually servo bus voltage which is much higher than this) but under the load of running two ESC some receivers will allow the signal voltage to drop below this. Again, we do no know which receivers do this and which don?t, we do not evaluate other companies products.

I thought the castle bec pro 20amp made sure the reciever was getting enough power along with the servo's
and esc's?

I assume they do not and only do the reciever and servo's?

eitherway thanks so much I can now try to work on something to make that happen with any reciever hopefully.

so I wonder if I can cut their power leads and make a dedicated 3.8V line to the esc's only where there not even getting that required power from anything else but there own line perhaps.

I should have asked if 3.8v was the lowest then what's the highest before an overload or damage.
 
northerngames

northerngames

Well-Known Member
got another reply through castle.

sounds like manually forcing is out of the question
unless I can find a way to bypass the the resistor safely.

I am going to pull my 4 channel tactic reciever apart and crosing fingers it's not there but if so I think I am just going to go with the one for $129.99 you guy's got posted above I can still use the tactic in the wheely king but glad I did not buy the same radio gear for the clod yet.

Receiver signal strength is a function of the receiver, and the micro process in the receiver, not the receiver?s power source. If there is a pull down resistor on the receiver?s signal leads between its microprocessor and the servo signal pin, which is done to minimize noise, it can limit the signal strength from the receiver. If this is the case, the signal cannot control more than one ESC microprocessor because the signal voltage will drop. This is the orange wire on the ESC and servos and has nothing to do with the power buss, brown and red leads. The power buss is common in receiver and the receiver has nothing to do with this power buss except to extract enough current to run itself.
 
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