Ar9000 receiver voltage

[3drules]

on the website there is very little technical info on that receiver.
I mean: voltage ranges, at what voltage does the receiver still perform.

At this moment I am using ACT receivers which still operate at 1.5V (and have a max of around 9V)
Why is this important... I have 8 hitec 5955 (3Amps) in my setup and flying wild 3D.
So it pulls 8 * 3 A = 24 Amps at the max. Normally the voltage then drops.
99% of the reeivers cannot hadle this, thats why you need power expanders, but I hate these, extra weight and cost.

In my current setup I use 2 ACT receivers, they are connected via a DSL cable (so they work as 1 receiver). connected 4 servos per receiver.
4 * 3 = 12 Amps and the receiver can handle 20 Amps.

How can we do this with the Ar9000 receivers?

CU around

[exeter_acres]

	Quote:
	99% of the reeivers cannot hadle this

really?

[dsnyder]

The operating voltage range is 3.6 to 9 volts. The limiting factor is the servos voltage wise, not the receiver. The receiver can handle much higher currents than that. I have not seen very many set ups that require any power box or any other additional devices. Simple is better. I never run power boxes in any of my models.

[DKnippen]

I agree with Dan. Simple is better !

[Rolling Thunder]

	Quote: Originally Posted by dsnyder
	The operating voltage range is 3.6 to 9 volts. The limiting factor is the servos voltage wise, not the receiver. The receiver can handle much higher currents than that. I have not seen very many set ups that require any power box or any other additional devices. Simple is better. I never run power boxes in any of my models.

Do you power your matchboxes or are they supplied power from the receiver.

[dick hanson]

less parts count=better reliability - -I don't use regs or expanders on any thing -
On my new little electric pattern model -using the 6100 rx - I am using 4 A123 cells . Wired such that I tap off two cells for the rx and the servos . ( I also use two of these cells for my 7000 series rx in large gas powered models )
so 14 v to the speed controller and 7.2 to the rx (both series and parallel outputs )
In actual practice -- my Whattmeter says - mildly loaded voltage is stabilized in mid upper 6v range (7.2 is fresh charged , unloaded voltage .) The cells have unreal amperage output and you just about -can not - screw em up . recharge is a wham bang thing at all the amps you can come up with. The 4 cell charger rebalances each time out so that is also not a problem. the 4 cell pack (2x2300ma) weighs about same as 4cell Lipo 4800 11 ounces and I don't need either a seperate small rx pack OR a reg. so flight length will not be as long as using LiPo but according to my bench testing - power - will be close till 2000 ma is used up . Then it's time to recharge

[dsnyder]

I sometimes power the matchbox with extra leads from Fromeco regulators, however most of the time I do not power them outside of the receiver power.

[3drules]

@danny,
The 3.6 Volt is the problem, and why many F3AX models use power expanders.
When 8 heavy digital servos beat a model around in the sky when 3D-ing then they draw such an amount of power that the voltage comes down, . Just add a data logger and you will see what I am talking about. Even if you use a 5Cell pack with a low internal resistance (so it resonds quick to a powerdraw) You'll see the Voltage drop to about 2 - 2.5 V for a short moment. This will cause the receiver to stop working and possibly go into failsafe mode.

Also the receivers normally are not build to handle great power consumptions. You have the change that they will "burn".

Safety is first, specially flying 40% monsters. The insurance is also giving us a hard time when something happens and one hasn't taken all possible precautions.

But I do agrree to keep everything simple. That is why I was so pleased with the ACT receivers. The are also programmable (so you son't need match boxes) and can handle the power and dual receiver option.
I was looking doing the same with Spectrum receivers.

[dsnyder]

With any 4.8-6V system 3.6 volts is certainly not a factor. I've got aircraft 12+ 8611A's without any power boxes or expanders. They just are not necessary. The receiver can easily handle that.

[3drules]

@danny,

Which receiver are you using?
I lost my futaba R149DP on this.(with 8 servo's)

[dsnyder]

I fly with only JR and Spektrum equipment. I've used about every receiver in both brands that have been available.

[exeter_acres]

	Quote: Originally Posted by 3drules
	@danny, Which receiver are you using? I lost my futaba R149DP on this.(with 8 servo's)

sorry about the loss... but I'm betting it wasn't the rx