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HelicopterRadio - Servo - Gyro - Gov - Batt › JR 9303 and GY 520 Heading Lock Mode
01-02-2010 06:19 PM  7 years agoPost 1
adraber1985

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Albion, IL -United States

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I've got a JR 9303 radio (2.4ghz) and I've read completely through the manual and set the gyro up according to the manual but for some reason I'm stuck in normal or "rate" mode. I don't know if it's something in the radio or if it's something on the gyro that I have to change in order to access AVCS (heading lock) mode. Has anyone ever dealt with this issue? I'm still kind of new to helicopters and any help would be greatly appreciated.

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01-02-2010 06:32 PM  7 years agoPost 2
Jeff polisena

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westpalmbeachflorida usa

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Do you have switch act ?

I stole it ,flew it and gave it back ;)

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01-02-2010 06:36 PM  7 years agoPost 3
Gyronut

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Martinsville In.

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HH is anything over 50% gain and below 50% is rate mode.

How did you setup the Tx..??

What switch did you asign to change modes..??

I used the Rudder DR switch to change modes.

Rick

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01-02-2010 06:42 PM  7 years agoPost 4
adraber1985

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Albion, IL -United States

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Wow, I feel like such a dummy. Obviously I'm still a rookie when it comes to heli's. I didn't even have the gain (red connector end) plug connected to the receiver. All I had plugged in was the servo to the gyro and gyro to the receiver. Now that it's plugged in I have the gain channel on the "gear" switch. Forward turns it red to heading hold and backwards turns it blue which is normal. The only thing is, I dont know if I can adjust the gain other than have it at 100% if it's on the "gear" channel? Anyone familiar with running the gain setting through the Gear channel of the receiver on a 9303?

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01-02-2010 07:32 PM  7 years agoPost 5
Jeff polisena

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westpalmbeachflorida usa

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On gear channel use atv to set gain start at 70 I don't use gyro sens screen because I like same gain in all modes and stay in hh

I stole it ,flew it and gave it back ;)

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01-02-2010 07:38 PM  7 years agoPost 6
Thumpernator

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Senoia, Georgia, USA

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I don't use gyro sens screen because I like same gain in all modes
The 9303 has the ability to have gain in all flight modes by using the Gyro Sense screen. Matter of fact, you can have different gains for the different flight modes. Just use the Auto Mode instead of the RUD D/R mode.

Dave
I keep on thinking, but nothing's happening. Knuk, Knuk, Knuk

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01-02-2010 07:41 PM  7 years agoPost 7
adraber1985

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Albion, IL -United States

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I take it that ATV is the travel adjustment? So do I just take it down to 70% on high and low stick?

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01-02-2010 07:48 PM  7 years agoPost 8
Jeff polisena

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westpalmbeachflorida usa

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If using gear switch toggle switch to lower atv in that position 70 is a starting point then after tracking tail you can set gain to hold efficently

I stole it ,flew it and gave it back ;)

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01-02-2010 09:08 PM  7 years agoPost 9
cudaboy_71

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sacramento, ca, u.s.

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The 9303 has the ability to have gain in all flight modes by using the Gyro Sense screen. Matter of fact, you can have different gains for the different flight modes. Just use the Auto Mode instead of the RUD D/R mode.
only if you use a 7+ channel rx.

don't pull your hair out when you have a 6ch RX and can't get the gyro sens screen to work. it ONLY works on channel 7/AUX2. this is only a 'feature' of the 9303. DX7 gyro gain can be programmed to another channel.

so, if you're using a spektrum 6XXX receiver you MUST use ATVs on ch. 5 to set gain.

if it ain't broke, break it.

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01-02-2010 09:19 PM  7 years agoPost 10
adraber1985

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Albion, IL -United States

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Thank you cudaboy. I'm using a spektrum 6ch receiver and I had no option but to put it in the "Gear" channel. So in order to change the gain I decrease the total travel input on both hi and low to 70% then? I want to make sure and be clear?

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01-02-2010 10:17 PM  7 years agoPost 11
cudaboy_71

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sacramento, ca, u.s.

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i wouldnt even worry about the 'low end' as that's your non-HH gain. unless you're flying scale, not much use for it these days.

if it wasnt clear above, your 'low end' ATVs is your non-HH gain. 'hi end' ATVs is the heading hold gain.

in my experience with the 520 on my trex 250, my 'hi end' gain ended up being about 26, and it holds like a rock.

for some perspective, the same heli on a gy401 required 72 for the gain....probably the reason some are saying start at 70. the 520 is a much better gyro.

my advice would be set your 'hi end' ATV to about 25-30 and go from there. if the tail wags in a hover, then it's already too high.

if punch the throttle and the tail is not hold heading, you need higher gain. increase gain until the tail begins to wag, and back it down a point or two from there.

if it ain't broke, break it.

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01-02-2010 11:03 PM  7 years agoPost 12
Jeff polisena

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westpalmbeachflorida usa

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i wouldn't even worry about the 'low end' as that's your non-HH gain
To get tail tracked I would recommend putting atv values the same . On 450 size helis your gain could be in 30s but on bigger helis 70 is a better place to start . How you test after tracking and setting travels is to fly sideways and turn gain up or down until tail hold tight but not wagging . If you cant fly side ways move left and right and as long as tail is not spongy you should be ok but dont over gain servo it can burn it up prematurely

I stole it ,flew it and gave it back ;)

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01-02-2010 11:23 PM  7 years agoPost 13
adraber1985

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Albion, IL -United States

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Awesome. Thank all of you guys for the input. I have learned a lot and will for sure continue to use this site for any future questions!

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HelicopterRadio - Servo - Gyro - Gov - Batt › JR 9303 and GY 520 Heading Lock Mode
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