114Likes
- Top
- All
- This Page
ReplySubscribe
Thread Tools
Search this Thread
02-12-2019, 10:31 PM
#421
lil3j
Tech Master
iTrader: (75)
Join Date: Feb 2006
Location: Sunny South
Posts: 1,113
Trader Rating: 75 (100%+)
Has anyone had any issues with the trigger on the 7px? I've noticed mine is really inconsistent with the percentage when I pull full throttle. It won't go to 100%, but reverse is perfect. I also notice while not touching the trigger there's movement on the screen for the servo view. Not alot, but it not neutral. Thanks
Reply
02-13-2019, 02:27 AM
#422
Craig1
Tech Master
iTrader: (49)
Join Date: May 2002
Location: Australia
Posts: 1,580
Trader Rating: 49 (100%+)
There was something posted a few pages back about a sort of soft limit at full throttle.
If you look up behind where the trigger presses at full throttle there is a small metal type tab, apparently it can be removed.
There also is mention about in the manual (can't recall the page) but someone was asking about it a few pages back on here.
Reply
02-15-2019, 11:27 AM
#423
trilerian
Tech Elite
iTrader: (51)
Join Date: Apr 2005
Location: Lexington KY
Posts: 2,314
Trader Rating: 51 (100%+)
has anyone used their 7px with sr and a compatible sbus servo? What is the real difference between t-fhss with a digital servo and sr with the sbus servo? I am trying to justify the price tag for the bls571sv...
Reply
02-15-2019, 12:55 PM
#424
dgrobe2112
Tech Elite
iTrader: (33)
Join Date: Sep 2002
Location: Austin, Tx
Posts: 2,384
Trader Rating: 33 (100%+)
Originally Posted by trilerian
has anyone used their 7px with sr and a compatible sbus servo? What is the real difference between t-fhss with a digital servo and sr with the sbus servo? I am trying to justify the price tag for the bls571sv...
i dont know the difference between a t-fhss, and SR because this is my first futaba radio, but i did keep my KO servos and used them when i got the radio. and coming from the ko servos.. to the new SR CB700 servos i am using now.. there was a considerable difference. This is in off-road mind you.. not to be rude.. but.. i find it weird that someone would would need to justify the price of a servo.. but.. yet.. not the radio. spend the money on a SR radio.. but then need to justify the price of a servo to use the radios full potential.
Reply
02-15-2019, 01:35 PM
#425
Panther6834
Tech Addict
iTrader: (2)
Join Date: Jan 2019
Location: Las Vegas
Posts: 661
Trader Rating: 2 (100%+)
Originally Posted by dgrobe2112
i dont know the difference between a t-fhss, and SR because this is my first futaba radio, but i did keep my KO servos and used them when i got the radio. and coming from the ko servos.. to the new SR CB700 servos i am using now.. there was a considerable difference. This is in off-road mind you.. not to be rude.. but.. i find it weird that someone would would need to justify the price of a servo.. but.. yet.. not the radio. spend the money on a SR radio.. but then need to justify the price of a servo to use the radios full potential.
Hitec has several servos that are just as fast (and faster) as Futaba's SR servos...plus, their servos "play nice" with Futaba receivers. The same can be said of high-quality servos from other companies, but Hitec is a name I'm familiar with, from flying RC helos. My suggestion is, save your money...as you'll need it to buy additional Futaba receivers for those additional vehicles you know you'll end up buying.
dgrobe2112 likes this.
Reply
02-15-2019, 01:39 PM
#426
dgrobe2112
Tech Elite
iTrader: (33)
Join Date: Sep 2002
Location: Austin, Tx
Posts: 2,384
Trader Rating: 33 (100%+)
i understand that... as i understand it.. any other brand servo is not SR compatible. And not programmable from the radio either. and with the latest update on the radio, you can now wirelessly update, and wirelessly program your servos as well.
Reply
02-15-2019, 01:59 PM
#427
Roelof
Tech Lord
Join Date: Aug 2007
Location: Holland
Posts: 12,879
Trader Rating: 0
SR is a mode that will work with so called narrow band servo's. Normal servo's have a center pulse width of 1.5 msec, narrow band 0.76 msec.
With those numbers a normal servo will work on a maximum framerate of 333Hz but in SR mode it has a framerate of 800Hz.
The maximum speed of 333Hz with normal servo's is only reached in SR mode (normal servo mode) Because there is no telemetry communication. In T-FHSS there is also telemetry data transmitted making the framerate somewhere arround 270Hz
0.76 msec or better known as 760 usec servo's are common used as a tail servo for RC helicopters because most gyro's spit out high speed signals for 760usec servo's. but most 760usec servo's can handle up to 500Hz framerate. So SR servo's are just 760usec - 800Hz servo's, the only other brand I have seen is Xpert with 800Hz servo's but they have no SBUS options which is basically not needed.
Reply
02-15-2019, 03:02 PM
#428
trilerian
Tech Elite
iTrader: (51)
Join Date: Apr 2005
Location: Lexington KY
Posts: 2,314
Trader Rating: 51 (100%+)
Originally Posted by dgrobe2112
i dont know the difference between a t-fhss, and SR because this is my first futaba radio, but i did keep my KO servos and used them when i got the radio. and coming from the ko servos.. to the new SR CB700 servos i am using now.. there was a considerable difference. This is in off-road mind you.. not to be rude.. but.. i find it weird that someone would would need to justify the price of a servo.. but.. yet.. not the radio. spend the money on a SR radio.. but then need to justify the price of a servo to use the radios full potential.
I need to justify the cost because I already have good Futaba digital servos. i.e. I don't have to buy new ones to run the cars I have. So it is just a cost, for what? If it is a considerable difference, then fine. I will buy the servo's, but if it isn't huge difference then the cost doesn't justify the performance. I make a finite amount of money, I have to pick and choose where it goes.
jkurz211 likes this.
Reply
02-26-2019, 08:18 AM
#429
beyondthepack
Tech Fanatic
iTrader: (5)
Join Date: Aug 2005
Location: Orillia, Ontario, Canada
Posts: 899
Trader Rating: 5 (100%+)
TC servo...
As I read through the posts it seems everyone has there preferences for Servos. Ill be investing in one servo for my TC. Im currently running the Reedy Servos which have been great. But in order to take the maximum ability of the 7PX, what would be considered the best servo?
Reply
02-26-2019, 09:40 AM
#430
riceball777
Tech Fanatic
iTrader: (36)
Join Date: Apr 2018
Location: Los Angeles
Posts: 954
Trader Rating: 36 (100%+)
I just got a 7px a few days ago and all my servos are the protek 160t and 160ss. So these servos are not compatible with the sr mode? What is the best low profile servo to buy? How much faster will sr mode be? Is it noticeable?
Reply
02-26-2019, 11:13 AM
#431
sn47som1
Tech Master
iTrader: (8)
Join Date: Mar 2010
Posts: 1,532
Trader Rating: 8 (100%+)
Hey guys, hopin you can help me out. I want to upgrade to the 7px but wont have the funds for some time. In the meantime do you know if my 4pksr is compatible with any of these new generation receivers? I want to atleast buy a new receiver for the time being. What is the most latest and greatest receiver my 4pksr can run until I can upgrade to 7px?
Thank you
Reply
02-26-2019, 12:22 PM
#432
Dan
Tech Champion
iTrader: (76)
Join Date: Oct 2001
Posts: 6,507
Trader Rating: 76 (100%+)
614FF and 614FS receiver for the 4PKSR.
The 4PKSR does not work with the T-FHSS receivers that the 7PX uses. The 7PX is capable of running the 614FF/614FS receiver though.
Reply
02-26-2019, 12:24 PM
#433
Dan
Tech Champion
iTrader: (76)
Join Date: Oct 2001
Posts: 6,507
Trader Rating: 76 (100%+)
Originally Posted by beyondthepack
As I read through the posts it seems everyone has there preferences for Servos. Ill be investing in one servo for my TC. Im currently running the Reedy Servos which have been great. But in order to take the maximum ability of the 7PX, what would be considered the best servo?
You want the following below. I use the BLS571SV for TC.
Servos with SR Mode settings
- BLS671SV/SVi (FUTM0160)
- BLS571SV (FUTM0158)
- BLS471SV (FUTM0155)
- BLS371SV (FUTM0151)
- S9372SV (FUTM0728)
- S9373SV (FUTM0729)
- O.S Speed B1 (OSMM1300)
- O.S Speed R1 (OSMM1301)
- O.S. Speed T1 (OSMM1302)
Reply
02-26-2019, 12:50 PM
#434
Roelof
Tech Lord
Join Date: Aug 2007
Location: Holland
Posts: 12,879
Trader Rating: 0
Originally Posted by riceball777
I just got a 7px a few days ago and all my servos are the protek 160t and 160ss. So these servos are not compatible with the sr mode? What is the best low profile servo to buy? How much faster will sr mode be? Is it noticeable?
Just 2 posts above yours
Futaba 7PX
SR requires so called narrow band servo's (760usec center) that can handle 800Hz frequency.
Reply
02-26-2019, 11:15 PM
#435
riceball777
Tech Fanatic
iTrader: (36)
Join Date: Apr 2018
Location: Los Angeles
Posts: 954
Trader Rating: 36 (100%+)
Originally Posted by Roelof
Just 2 posts above yours
Futaba 7PX
SR requires so called narrow band servo's (760usec center) that can handle 800Hz frequency.
thanks for your help
so if I get rid of my protek 160t servo in favor of a Futaba BLS571SV servo for my 7px what real world difference will I feel or notice? I feel the specs on the protek 160t and 160ss servos are hard to beat.
Reply
Show Printable Version
Email this Page
Reply Closed Thread
- First
- Prev
- 29 / 57
- Next
- Last
27
28
29
30
31
Contact Us -Archive -Advertising -Cookie Policy -Privacy Statement -Terms of Service -Your Privacy Choices -
Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.
