RunRyder RC
WATCH
 1 page 801 views POST REPLY
HomeRC & PowerAircraftHelicopterRadio - Futaba FASST › gyro gain and futaba radio ques.
03-31-2009 03:12 PM  9 years agoPost 1
Ragz

rrApprentice

India

My Posts: All  Forum  Topic

I have 2 trex 600 nitros with 401 gyros. One is setup with a 14mz/2.4ghz/fasst and the other with a 9cap/40mhz/148dp radios. The gyro gain on the 14mz is set at 50% and the gain on the 9cap is at 75%. Is it normal for two radios from the same company to have different gain settings? Am I even asking a valid question? Is this something to do with 2048 vs 1024 pulse?

thanks

Anurag

PM  EMAIL  Attn:RR  Quote
03-31-2009 03:36 PM  9 years agoPost 2
AlabamaRaptor

rrApprentice

Millbrook

My Posts: All  Forum  Topic

See if this helps you any...
(from http://www.raptortechnique.com)

Gain values
Different radios treat the values differently. On the Futaba 8U(super) the range in the gyro menu is 0 to 100. From 0 to 50 is one mode (such as heading hold) and 50 to 100 is the other. To fully understand this you have to look at it just as the gyro does. That radio sends a pulse from 1ms to 2ms to each of the connectors on the receiver. From 1ms to 1.5ms is one mode, say non-hh, and 1.5ms to 2ms is the other. The further it is from 1.5ms the higher the gain. On the 8U(super), 0 would correspond to 1ms and 100 would be 2ms. Now on the Futaba 9C it has 0 to 100 for hh and 0 to 100 for non-hh. So in the non-hh position 0 would be 1.5ms and 100 would be 1ms. In the hh position it sends pulses from 1.5ms to 2ms.
Now to add a little confusion some radios allow the end points (atv's) you set to effect the setting you made in the gyro menu. So in other words if you have the gyro menu set at 100% but the end point for channel 5 is at 100% (with a range up to 150%) then instead of sending a 2.0ms pulse to the gyro (for maximum gain) you are only sending a 1.83ms signal which is about 65% of the actual gain in the gyro.
Okay, so to help unconfuse you now, don't worry about the details. Just set your end points to 100% and 100% for the gyro gain too. Then if the tail wags lower the gain from there. If you have to go below 85% then move the ball on the servo arm in one hole toward the center and try again.

PM  EMAIL  GALLERY  Attn:RR  Quote
04-01-2009 06:48 AM  9 years agoPost 3
Ragz

rrApprentice

India

My Posts: All  Forum  Topic

THANK YOU

Anurag

PM  EMAIL  Attn:RR  Quote
WATCH
 1 page 801 views POST REPLY
HomeRC & PowerAircraftHelicopterRadio - Futaba FASST › gyro gain and futaba radio ques.
 Print TOPIC  Make Suggestion 

 1  Topic Subscribe

Monday, September 24 - 2:31 am - Copyright © 2000-2018 RunRyder   EMAILEnable Cookies

The RC discussion world needs to consolidate. RR is now one choice for that. Its software is cutting edge. It hosts on-topic advertising. Help RR increase traffic buy making suggestions, posting in RR's new areas (sites) and by spreading the word.

The RunRyder Difference

• Category system to allow Rep/Vendor postings.
• Classifieds with sold (hidden) category.
• Classifieds with separate view new.
• Answer PMs offsite via email reply.
• Member gallery photos with advanced scripting.
• Gallery photo viewer integrated into postings.
• Highly refined search with advanced back end.
• Hosts its own high end fast response servers.
• Hosts thousands of HD event coverage videos.
• Rewrote entire code base with latest technology.
• No off-topic (annoying) click bait advertising.
Login Here
 New Subscriptions 
 Buddies Online