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HomeAircraftHelicopterRadio - Spektrum DSM › best position of the antenna from a dx-7
03-03-2008 07:11 PM  10 years agoPost 1
ueber30

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Germany

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hello @ all

can jou tell me what is the best position from the antenna at the transmitter dx-7 too fly without problems???

sorry about my bad english,it is from school and 20 jears ago

thanks uwe from germany

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03-03-2008 08:31 PM  10 years agoPost 2
BarracudaHockey

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Jacksonville FL

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On the end of the transmitter.

Andy
AMA 77227
http://www.jaxrc.com

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03-03-2008 08:41 PM  10 years agoPost 3
Busher

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Manchester, England

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I have mine on the end of my TX as Barracudahockey says, but I bend mine up at 45 degrees, I cant tell you whether this is the best position but it has worked well for me up to now. I have studied other people in pics on RR and they have it in all positions and therefore I think it dosen't really matter that much.

I would extend it proudly and see which position you find the best

Good luck
Busher

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03-03-2008 09:02 PM  10 years agoPost 4
BarracudaHockey

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Jacksonville FL

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That was my point, at the range we fly it doesn't matter.

If you look at antenna radiation patterns and you were flying a larger model farther away from yourself you would want to try not to point the tip of the antenna at the reciever to avoid something called the cone of silence. When I say bigger I mean a large glider, not a 40 size sport airplane or most any heli.

Andy
AMA 77227
http://www.jaxrc.com

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03-03-2008 10:13 PM  10 years agoPost 5
Four Stroker

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Atlanta

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The DX7 he has in Germany may only have 10 mW so you may be misleading him slightly. As you hold the transmitter to fly, the antenna should be at 90 degrees to the flying thing at all times. So 45 degrees DOWN when hanging from a neck strap would be about right.

We have 200 mW over here and it don't matter much.

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03-04-2008 02:10 PM  10 years agoPost 6
ueber30

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Germany

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Thanks for the answers @ all

@ Four Stroker : the dx-7 is new import from the firm JSB.the chef say that is 100 mw in germany allow. he have write in a german modell magazine a very intresting report about the new technical from 2,4 ghz .
the technics is very new for me,but i think i will buy me a dx-7 with 100mw ,and i will all know before i do that.

thanks uwe

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03-04-2008 04:50 PM  10 years agoPost 7
Four Stroker

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Atlanta

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What are the best German heli magazines ? Can you post some links ? 100 mW is good enough - several Km. Looks like PB did a magic dance and got this approved. It never hurts to point your antenna in the correct direction.

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03-04-2008 07:15 PM  10 years agoPost 8
ueber30

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Germany

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hello four stroker...
a good german helicopter magazine is the ROTOR
http://www.rotor-magazin.com/index....display&ceid=35

and a second good magazine is the FMT
http://www.vth.de/modellbau/FMT/FMT.HTM

in the FMT has the men from JSB write the report
http://www.jsb-gmbh.de/index.html
when jou can read german i will send jou a scan from the report in the FMT
i am happy that 100mw enough to fly without problems

thanks for the answers
uwe

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03-04-2008 09:33 PM  10 years agoPost 9
Four Stroker

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Atlanta

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Ich war einmal ein Austauschstudent im Langwasser, Ortsteil Nurnberg.

I would like a scan of the article. I used to subscribe to many German magazines long ago - 70's.

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03-07-2008 01:27 PM  10 years agoPost 10
Pinecone

rrKey Veteran

Maryalnd

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ON my X9303 I have the antenna bent 90 degrees, but it is parallel to the top of the case. I can't see where you would EVER fly with the right side of the TX pointed at the model.

Terry
Blade CP Trex 450 SE
QJ EP8v2 EX Gaui Hurricane 550
Vibe 50 Bergen Intrepid Gasser

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03-07-2008 03:40 PM  10 years agoPost 11
Four Stroker

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Atlanta

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Pinecone That's the way I fly ! That's the way it goes in the box. I don't see any reason to bend the antenna (and internal coax) every time I fly. It will eventually break.

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