[NSRCA-discussion] Analog Servo RF Masking and....Thanks!

[Scott Pavlock]

I've used multiple battery set ups including ones without a regulator on a
normal NiCd pack, and also on both a 5.6v regulator and a 6v regulator.

John,

No I don't. I actually have no clue what that is haha.

On 7/4/06, John Pavlick <jpavlick at idseng.com> wrote:
>
>  Do you have access to an oscilloscope?
>
>
> John Pavlick
> http://www.idseng.com
>
>
> -----Original Message-----
> *From:* nsrca-discussion-bounces at lists.nsrca.org [mailto:
> nsrca-discussion-bounces at lists.nsrca.org]*On Behalf Of *Scott Pavlock
> *Sent:* Tuesday, July 04, 2006 5:40 PM
> *To:* NSRCA Mailing List
> *Subject:* Re: [NSRCA-discussion] Analog Servo RF Masking and....Thanks!
>
> I've literally tried EVERYTHING possible to isolate the problem. The only
> problem I can find is solely in the servos. The battery is bran new
> (duralite 2s2p), bran new heavy duty MPI switch. I can reproduce the problem
> with the digis with many different switch/battery/regulator set ups. I know
> current draw isn't a problem as I've flown this set up for 2 years with no
> faults.
>
> On 7/4/06, John Pavlick <jpavlick at idseng.com> wrote:
> >
> >  Scott,
> >  Well I'm sure you've been through a lot already, but what you need to
> > do is try to isolate the problem if possible. Start with a working setup
> > (the analog servos). Next, add 1 digital servo. If it still works, remove
> > that servo and try another. Only change ONE thing at a time. If it works
> > with 1 digital servo ALL THE TIME, then add a second one. If you start to
> > see problems as you add more digital servos (i.e gets worse with 3 or 4
> > digital servos but seems to work OK with 1 or 2), look at your battery and
> > switch. What are you using for a battery and switch by the way? If your
> > radio checks out OK (RF-wise) it's more likely that there is a problem with
> > power. I bet you didn't have Rx the batteries checked did you? As you know,
> > analog servos don't draw nearly as much current as digital servos. That
> > could be the problem. If you have any way to look at the voltage when all of
> > this is happening it could reveal some things. One way to do this is to put
> > a servo lead in an unused channel on the Rx, connect it to a voltmeter, turn
> > everything on and move the sticks. Don't use an Expanded-scale volt meter,
> > just a plain old DVM (or better yet an analog volt meter) will do. See what
> > that tells you.
> >
> >
> > John Pavlick
> > http://www.idseng.com
> >
> >
> >  -----Original Message-----
> > *From:* nsrca-discussion-bounces at lists.nsrca.org [mailto:
> > nsrca-discussion-bounces at lists.nsrca.org]*On Behalf Of *Scott Pavlock
> > *Sent:* Tuesday, July 04, 2006 3:58 PM
> > *To:* NSRCA Discussion List
> > *Subject:* [NSRCA-discussion] Analog Servo RF Masking and....Thanks!
> >
> > First I would like to thank everyone for the great advice on these last
> > few posts I've posted. Everyone has been a big help.
> >
> > I'd like to ask if anyone knows if an analog servo would mask glitches
> > coming in?
> > (2 - Futaba 3010's, 2 - Hitec HS77's, 1 - HS81MG)
> >
> > When I connect my JR digital servos ( 2 - 9411sa's, 1 - 8411sa, 1 -
> > 8417, 1 - 3421sa) I get a pretty significant, constant glitch, as if the
> > servos are constantly trying to center, but they have no load what so ever.
> > This is the problem I have described in previous posts.
> >
> > When I connect analog servos in an identical set up, there is no "noise"
> > at all. I range tested them at 100 feet with 1 antenna section up and there
> > is no loss in speed and no sluggish behavior. I also range tested this at
> > about 300 feet with the antenna completely down just for kicks, and I get
> > the same results.
> >
> > When I range test the digital servos, even at the 100 foot range with
> > the antenna completely extended there is a significant, constant glitch. The
> > servos, receiver, and transmitter have all just gotten back from being
> > checked and the 9411sa's had new pots put in, the receiver had been re-tuned
> > to the frequency, and the transmitter got a new antenna. I am very surprised
> > with these results as I just spent a fair amount of money to have my
> > electronics looked at and deemed well.
> >
> > Now, my question again, are my analog servos just masking a problem, or
> > is this solely a problem in the digital servos?
> >
> > Thanks a ton everyone!
> >
> > Scott
> >
> > _______________________________________________
> > NSRCA-discussion mailing list
> > NSRCA-discussion at lists.nsrca.org
> > http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
> >
> >
>
> _______________________________________________
> NSRCA-discussion mailing list
> NSRCA-discussion at lists.nsrca.org
> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.nsrca.org/pipermail/nsrca-discussion/attachments/20060704/97cfa669/attachment-0001.html