[NSRCA-discussion] Plettenberg 30-10 evo and Jeti ESC

[John Gayer]

Earl,
Your numbers imply that the frame rate of the 7008SB is 1/2 the frame 
rate of the 6008HS for discrete channels. That doesn't seem like the 
right direction for Futaba to be steering. Or is just that on a SB 
system the discrete channels are an afterthought?
John

On 3/16/2012 2:23 PM, ehaury wrote:
> Well, Jim caught me. So much for quick & dirty!
> I made the servo signal measurements using a high impedance meter with 
> a scope mode. It displays a voltage at the top of the scope screen, as 
> well as a freq. Without thinking, that voltage is the number I 
> reported, and it's 50% different between the RX's because one was 
> operating at 2X the freq of the other, but it's not pulse amplitude 
> but average volts.
> I took another look and the actual pulse amplitude is the same for 
> both, and is 3v as Jim observed. Pretty obvious upon thinking about 
> it. So - Futaba didn't change anything and Robert's problem isn't with 
> pulse amplitude.
> Jim, thanks for questioning me - sorry for the confusion.
> Earl
>
>     ----- Original Message -----
>     *From:* James Oddino <mailto:joddino at socal.rr.com>
>     *To:* General pattern discussion
>     <mailto:nsrca-discussion at lists.nsrca.org>
>     *Sent:* Friday, March 16, 2012 1:55 PM
>     *Subject:* Re: [NSRCA-discussion] Plettenberg 30-10 evo and Jeti ESC
>
>     Earl, something doesn't look right.  How did you measure the pulse
>     amplitude?  Did you have a servo connected?  I measure 3.0 volts
>     peak unloaded on a 6108SB.
>
>     Jim O
>
>
>     On Mar 16, 2012, at 8:18 AM, ehaury wrote:
>
>>     I compared the servo pulse amplitude of the 6008HS (0.64v) and
>>     the 7008SB (0.32v) RXs. That's a significant difference, while
>>     Futaba servos are designed to work at that level, other stuff
>>     isn't. That's likely the issue with your ESC.
>>     Earl
>>
>>         ----- Original Message -----
>>         *From:* Robert Green <mailto:robcase1 at cox.net>
>>         *To:* 'General pattern discussion'
>>         <mailto:nsrca-discussion at lists.nsrca.org>
>>         *Sent:* Friday, March 16, 2012 8:44 AM
>>         *Subject:* Re: [NSRCA-discussion] Plettenberg 30-10 evo and
>>         Jeti ESC
>>
>>         Thanks Earl i was told that someone else in Europe was
>>         experiencing similar problems with theirs as well.  Hope they
>>         can get it resloved.
>>
>>         ------------------------------------------------------------------------
>>
>>         *From:*nsrca-discussion-bounces at lists.nsrca.org
>>         <mailto:nsrca-discussion-bounces at lists.nsrca.org>
>>         [mailto:nsrca-discussion-bounces at lists.nsrca.org] *On Behalf
>>         Of *ehaury
>>         *Sent:* Friday, March 16, 2012 8:27 AM
>>         *To:* General pattern discussion
>>         *Subject:* Re: [NSRCA-discussion] Plettenberg 30-10 evo and
>>         Jeti ESC
>>
>>         Suggest you give Futaba service / Steve Kaluf a call. It may
>>         be that the RX pulse rise is a little low for the ESC. Futaba
>>         have, in the past at least, used a lower pulse amplitude than
>>         some others which resulted in strange results when mixing
>>         servos on occasion. If this is the case, the problem is more
>>         compatibility with the ESC than RX defect, still annoying though.
>>
>>         Earl
>>
>
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