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HomeRC & PowerAircraftHelicopterRadio - Spektrum DSM › Spektrum 2.4ghz module on XP9303
10-11-2010 09:17 PM  8 years agoPost 1
edward85

rrNovice

Northeast Ohio

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Hi. As the thread title states, that's what I got...
Something weird I've noticed, when the system is on, if the module's antenna is straightened, the servos twitch like crazy. When the antenna is folded, no twitch.

Also, if I place my hand on the antenna or the surface of the module, even if the antenna is straight, there is no glitching. When I remove my hand, if the antenna is straight, it glitches.?????? I bound the system per instructions, and the receiver and satellites' antennae aren't touching anything.

Is this normal? Can anybody help?

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10-11-2010 09:27 PM  8 years agoPost 2
shuttlepilot

rrElite Veteran

Mullins, South Carolina

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I can't recall my setup acting like that and I have the specktrum conversion in my 9303 like you. I'll check it this evening and let you know.

Gas is Great
Camper Fuel is Better!!
QWW Helis

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10-11-2010 09:46 PM  8 years agoPost 3
jschenck

rrProfessor

La Vista, NE.

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That doesn't sound right at all - never saw anything like that when I had an XP9303 with the 2.4 module. I'd bet there is a problem with the antenna. For sure do a proper range check.

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10-11-2010 11:20 PM  8 years agoPost 4
edward85

rrNovice

Northeast Ohio

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Yeah, figured it wasn't supposed to act like that. It's worse than an AM radio under power lines! But only when I straighten the antenna or move my hand away from the module. Any other time, it's ZERO interference. Any fixes?
The module and receiver/satellite are new out of the box.

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10-12-2010 02:07 AM  8 years agoPost 5
jschenck

rrProfessor

La Vista, NE.

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I see two choices-

1. Troubleshoot and repair/replace the failed component.

2. Send it into HH.

I'd choose #2 unless there is an obvious and simple fix such as the connector is loose.

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10-12-2010 02:01 PM  8 years agoPost 6
shuttlepilot

rrElite Veteran

Mullins, South Carolina

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I agree with jschenck. If it's not something like a loose connector in the stub antenna, I would send it back in. Mine doesn't do any type of glitchin no matter how the antenna is positioned or what I'm touching.

Do you know anyone that has another module that you could test it against? That would be the only alternative for trouble shooting besides sending it back to HH.

Gas is Great
Camper Fuel is Better!!
QWW Helis

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10-12-2010 08:58 PM  8 years agoPost 7
edward85

rrNovice

Northeast Ohio

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I'll check for any loose wires. I've emailed HH and waiting for a reply in case I have to send it in. Thanks!

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10-13-2010 12:06 AM  8 years agoPost 8
heliflyer3

rrApprentice

Macomb, MI

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The antenna should be at a 90 degree to the radio...not straight up...read the manual

Fly it like it's your buddys bird
AMA#914056

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10-13-2010 12:12 AM  8 years agoPost 9
edward85

rrNovice

Northeast Ohio

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Yeah, I did read the manual, I swear. And it did state that the antenna should be positioned at a 90 degree angle...
I just wonder why I would be getting interference with the antenna upright...it's no big deal, definitely not a deal breaker. I like the 2.4ghz setup. VERY convenient!

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10-13-2010 12:14 AM  8 years agoPost 10
heliflyer3

rrApprentice

Macomb, MI

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Sorry didnt mean to come off as a A**...as jschenck said could be a range check problem... do check for loose wires and contact HH. What receiver are you using?

Fly it like it's your buddys bird
AMA#914056

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10-13-2010 11:21 PM  8 years agoPost 11
edward85

rrNovice

Northeast Ohio

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Hey, i didn't think you were being an a**. I'm new to the 2.4 deal. I'm using an AR7000 receiver. The range check was about 100 feet (my buddy helped) and he detected no twitching at that range. I'll keep an eye on it! Thanks!!!

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