Jaccio Perfect Switch Harness (long)

[David Wartel]

Tony, Del: Thanks again for your suggestions.

I've got the battery/switch from the Quest in the beater with the suspect rx
and will range check engine running before putting it up.

I swapped the rx and battery/switch from the beater (which has been
performing perfectly) to the Quest and will test that as well with the Hitec
digitals installed. This should tell me if the problem is with the servos
and/or the long extensions.

I know the ideal would be to install the whole setup from the Quest to the
beater, and I may wind up doing that. But that's a big job; not as big,
however, as putting another plane together!

I will find the problem, specially with all the help I'm getting here both
on and off the list.

You guys are just great!

Just a side note of interest: Modern technology continues to amaze.
Communication like this list is incredibly useful. Yesterday I was at the
field working on my plane (in Massachusetts) and at the same time getting
help on my cell phone from Jack Albrecht at Airtronics in California. It's
so Dick Tracy!

Dave

----- Original Message ----- 
From: "Del K. Rykert" <drykert at localnet.com>
To: <discussion at nsrca.org>
Sent: Thursday, April 22, 2004 9:47 AM
Subject: Re: Jaccio Perfect Switch Harness (long)


> Dave..
>     I concur and would add I get 350 feet with antenna collapsed using
> Airtronics PCM. I sent back to Bobby when it degrades to 300 feet or other
> issues come up. I see PCM as saving my plane when in hostile interference
> areas as I still have control when others were getting blasted all over
sky
> using same freq. I feel PCM works and swear by it.
>
>                              del
>                NSRCA - 473
> ----- Original Message ----- 
> From: "Atwood, Mark" <atwoodm at paragon-inc.com>
> To: <discussion at nsrca.org>
> Sent: Wednesday, April 21, 2004 10:30 PM
> Subject: RE: Jaccio Perfect Switch Harness (long)
>
>
> Dave,
>
> While I agree with Troy...and run the Airtronics PCM receivers in my
planes
> (you'll like them) I've also had good luck with PPM....I'm inclined to
think
> you may have a loose or fractured crystal.  I've gotten some very flaky
> reactions from what turned out to be a bad crystal.
>
> Since you mentioned Jack...I'd suggest you send the receiver in to him
> (actually send it to Bobby Tom) and have it looked at.
>
> -Mark
>
>
> -----Original Message-----
> From: David Wartel [mailto:d.wartel at comcast.net]
> Sent: Wed 4/21/2004 8:43 PM
> To: discussion at nsrca.org
> Cc:
> Subject: Re: Jaccio Perfect Switch Harness (long)
>
> Thank you for the reply, Troy.
>
> When I said jittery, I meant near the limit of the range check.
>
> I didn't know about the advantages of range checking with PCM. It does
sound
> like it is a lot more positve. The reason I did not use it is that it
never
> made sense to me to have the system lock up when it gets hit. It seems it
> would be better to have some/intermittent control than none. In fact, that
> may have saved my plane the other day.
>
> I will change the extensions to OEM as you suggest. I have the heavy duty
> type in now, but they are not OEM.
>
> I totally agree with you regarding the value of a model. The Quest is an
> ARF, but still took considerable time to assemble. I also have an all wood
> Typhoon that I built from plans that took considerably longer to
"assemble!"
> And, for me, it is BOTH the money and the time that add to the value of a
> plane.
>
> I'll think seriously about getting a PCM receiver. You are persuasive!
>
> Dave
> ----- Original Message ----- 
> From: "Troy Newman" <troy_newman at msn.com>
> To: <discussion at nsrca.org>
> Sent: Wednesday, April 21, 2004 7:25 PM
> Subject: Re: Jaccio Perfect Switch Harness (long)
>
>
> > David
> >
> > I have one word for you.....PCM!
> >
> > Then I'll add a bunch more below!
> >
> > PCM is better at rejecting interference. It will also lock your range
> tests
> > in better. Your comment about a little jittery is something I would not
> > trust in my own equipment.
> >
> > Now PPM (FM) stuff is good. But the real question becomes how valuable
is
> > your model? For me its not the money it takes to put another model into
> the
> > air. Its the time and energy it takes to put another model in the air.
> This
> > is regardless of the cost of the model. A $250 arf or a $1100 French
> > kit....The end result is it takes hundreds of hours to built trim and
> > perfect a model. Is this time worth the extra $50 to run PCM? Another
> thing
> > you are spending more money on your servos going with digital servos for
> > better control right...yet you are looking toward a lower end RX on the
> > technology scale. The servos are the link to the control surfaces...but
> the
> > RX is the link to your finger! There is a reason that all the top pilots
> run
> > PCM its a better system...It is a more reliable, and better technology.
> >
> > OK now for the disclaimer....PCM will got out of range and can have
> problems
> > with range also....but its better at rejection of interference. Also
when
> > you are range checking things......The PCM gives you a GO or NO-GO
> > test....The model will go into failsafe when range testing and the
signal
> is
> > not enough to maintain control. On PPM systems you are left with "HOW
much
> > jittering (glitching) is acceptable....In PCM system you know if you are
> out
> > of range or not....
> >
> > If you range test your equipment to the distance it failsafe....then you
> > know right there is the limit....So start up your motor and compare the
> > distances.
> >
> > Another thing we have found in the interference issues is the use of
poor
> > quality extension leads. digital servos will draw more current
regardless
> of
> > the brand....The use of off brand leads can lead to your models death.
The
> > higher current demands may not be met by the off brand leads...The
> > connectors could be not up to the task.... It surprises me just how big
an
> > effect poor quality leads really have. I know that both JR and Futaba
make
> a
> > heavy duty lead. I don't know about Airtronics..I would suggest the JR
> gold
>
> **    Clipped to repost... **
>
>
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