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<DIV><SPAN class=890052222-04072006><FONT face=Arial color=#0000ff size=2>Do you
have access to an oscilloscope?</FONT></SPAN></DIV>
<DIV><SPAN class=890052222-04072006><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=890052222-04072006>
<P><FONT size=2>John Pavlick<BR><A href="http://www.idseng.com/"
target=_blank>http://www.idseng.com</A><BR> </FONT> </P></SPAN></DIV>
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style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px solid">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B>
nsrca-discussion-bounces@lists.nsrca.org
[mailto:nsrca-discussion-bounces@lists.nsrca.org]<B>On Behalf Of </B>Scott
Pavlock<BR><B>Sent:</B> Tuesday, July 04, 2006 5:40 PM<BR><B>To:</B> NSRCA
Mailing List<BR><B>Subject:</B> Re: [NSRCA-discussion] Analog Servo RF Masking
and....Thanks!<BR><BR></FONT></DIV>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. <BR><BR>
<DIV><SPAN class=gmail_quote>On 7/4/06, <B class=gmail_sendername>John
Pavlick</B> <<A
href="mailto:jpavlick@idseng.com">jpavlick@idseng.com</A>> wrote:</SPAN>
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<DIV>
<DIV>
<DIV><SPAN><FONT face=Arial color=#0000ff size=2>Scott,</FONT></SPAN></DIV>
<DIV><SPAN><FONT face=Arial color=#0000ff size=2> 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.</FONT></SPAN></DIV></DIV>
<DIV><SPAN class=sg>
<DIV><SPAN><FONT face=Arial color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV><SPAN>
<P><FONT size=2>John Pavlick<BR><A
onclick="return top.js.OpenExtLink(window,event,this)"
href="http://www.idseng.com/"
target=_blank>http://www.idseng.com</A><BR> </FONT>
</P></SPAN></DIV></SPAN></DIV>
<DIV>
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style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: rgb(0,0,255) 2px solid"></BLOCKQUOTE></DIV>
<DIV><SPAN class=q>
<DIV dir=ltr align=left><FONT face=Tahoma size=2>-----Original
Message-----<BR><B>From:</B> <A
onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:nsrca-discussion-bounces@lists.nsrca.org"
target=_blank>nsrca-discussion-bounces@lists.nsrca.org</A> [mailto:<A
onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:nsrca-discussion-bounces@lists.nsrca.org"
target=_blank>nsrca-discussion-bounces@lists.nsrca.org</A>]<B>On Behalf Of
</B>Scott Pavlock<BR><B>Sent:</B> Tuesday, July 04, 2006 3:58
PM<BR><B>To:</B> NSRCA Discussion List<BR><B>Subject:</B> [NSRCA-discussion]
Analog Servo RF Masking and....Thanks!<BR><BR></FONT></DIV></SPAN></DIV>
<DIV><SPAN class=e id=q_10c3b66bae3755dc_4>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.<BR><BR>I'd like to ask if anyone knows if an analog
servo would mask glitches coming in?<BR>(2 - Futaba 3010's, 2 - Hitec
HS77's, 1 - HS81MG) <BR><BR>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. <BR><BR>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. <BR><BR>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.
<BR><BR>Now, my question again, are my analog servos just masking a problem,
or is this solely a problem in the digital servos?<BR><BR>Thanks a ton
everyone!<BR><BR>Scott<BR></SPAN></DIV>
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