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CarbonXtreme . Midland Helicopters . HeliProz

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Radio - JR & Spektrum DSM > My experience with the DX7 spread spectrum radio
 
 
stickyfox
Key Veteran
Location: Troy, NY, US

My Posts This: Topic  Forum

I don't want the DX7 thread to get off topic but I'd appreciate if you could comment in the one I'm starting (in the radio section), Augusto.

-fox
11-11-2006 Over year old.
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Dr. Fibinotchi
Key Veteran
Location: Sioux Falls SD

My Posts This: Topic  Forum		excellent write up

Loved the write up. I always hated the 9z and 4point ccpm as well and was the reason went to 3 point.


Looking forward to using this.


-Cody
11-11-2006 Over year old.
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Augusto
Elite Veteran
Location: US

My Posts This: Topic  Forum
Quote 
How is stick feel compared to the 14mz?

The stick feels pretty good. I think the release version comes with ball bearing gimballs.

Augusto.

Avant Aurora Ultimate
11-12-2006 Over year old.
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tchavei
rrProfessor
Location: Portugal

My Posts This: Topic  Forum		Thats nice


--------------------
"Perfection and patience usually walk side by side..."
11-12-2006 Over year old.
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helimodels
Senior Heliman
Location: Dublin, Ireland

My Posts This: Topic  Forum		Hi Augusto
do we get to hear whether the DX7's encoder has any resolution issues compared to the 14MZ? It has got to be a much more relaxing radio to fly, because of increased safety. I am inclined to put this feature far ahead of better resolution, what about you? I was nearly shot down a year ago by a newbie who switched his PPM radio on while I had the peg. Got real jerky, but luckily I survived with only minor staining. Would not want a rerun, thats certain. And will the Tx drive a DX6 receiver? I would rather use the simpler lighter Rx for indoor/park flying.
11-12-2006 Over year old.
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Tioli
Veteran
Location: Kona, Hawaii

My Posts This: Topic  Forum		The DX7 radio DOES run the DX6 parkflyer receiver, though not vice versa.

Big Island RC Helis
11-12-2006 Over year old.
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Yug
rrMaster
Location: UK. Herts

My Posts This: Topic  Forum		Polarized antennas sounds like a good fix. When I was playing around with 2.4Ghz video downlinks, when the heli came between the antenna and the receiver, the signal would readily break up with its 125mm wavelength. It would be interesting to see how the DX7 system coped in the vicinity of mobile phones and microwave transmission links.
11-12-2006 Over year old.
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stanc
Key Veteran
Location: Conroe, TX

My Posts This: Topic  Forum		I fly a eRaptor 50 and a Xero G 600EP, both with AR6000 receivers and the DX6 in a 6102 TX and I fly next to a cel tower. Never an issue of any kind. Its nice to go to a fun fly and not have to impound your radio. I will be buying a DX7, supposedly the programming is that of a 8103 TX and has a couple of features the new 7202 doesn't have, like a count down/count up timer.


Stanc
11-12-2006 Over year old.
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porscheaddict
Heliman
Location: Cornwall, Ont. Canada

My Posts This: Topic  Forum		I have DX7 on order already
Thanks for a great write up. But I do have a question and any one can chime in here. I would like to know if the DX7's main receiver would fit the frames of mini helis such as X-400(MX) and the Trex 450's? In Agusto's pics the main receiver appears to be quite large.
Chris.
11-12-2006 Over year old.
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JKos
Elite Veteran
Location: City of California in the state of Maryland

My Posts This: Topic  Forum		> In Agusto's pics the main receiver appears to be quite large.

Paul posted these measurements for the AR7000 main receiver:

AR7000 is 24 x 45 x 14 mm
Weighs 14 grams

So it's about the same size as the Electron 6 (22.5 x 45.5 x 15 mm) if you are familiar with that receiver. The Futaba 146iP is larger at 28.7 x 42.7 x 20 mm and I know guys are using those on the smaller helis.

- John
11-12-2006 Over year old.
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Tioli
Veteran
Location: Kona, Hawaii

My Posts This: Topic  Forum		You can always use the smaller park flyer rx for the small helis, or the DX6 rx. Of course, then we're back to 6 channels...never mind...sigh.

Big Island RC Helis
11-23-2006 Over year old.
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Yug
rrMaster
Location: UK. Herts

My Posts This: Topic  Forum		I've always been pleased with the range check on my helis - about 400 feet with tx aerial fully collapsed. In Augustos original post, he was happy at 30 paces. What I would like to know, is how far does the DX7 range check ?
11-25-2006 Over year old.
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JKos
Elite Veteran
Location: City of California in the state of Maryland

My Posts This: Topic  Forum		Yug,
> how far does the DX7 range check ?

The method for range checking the DX6 and DX7 is quite different than any other radio on the market right now. To do a range check, you press the bind/range check button on the back of the tx while walking away from the model. Pressing the button reduces the RF output of the tx by a HUGE factor. You don't have to walk nearly as far away as you do with a 72 MHz system to know if everything is ok.

- John
11-27-2006 Over year old.
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Sparky Paul
Senior Heliman
Location: Palmdale, cA

My Posts This: Topic  Forum		Full power range checking with the DX-6 has shown me a ground range of over 1000'.
Others have gotten 3200'. This is WAY beyond the practical distance a helicopter can be flown to.
In the air, range for large models is beyond sight.
11-27-2006 Over year old.
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Yug
rrMaster
Location: UK. Herts

My Posts This: Topic  Forum		The range sounds pretty good then. My only other concern is signal shaddowing; with a wavelngth of 125mm, I would think that with the heli in the wrong orientation, the range could be substantially reduced inspite of the 2nd antenna. Question, what length is the cable joining the 2nd antenna module to the receiver ?
11-27-2006 Over year old.
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Sparky Paul
Senior Heliman
Location: Palmdale, cA

My Posts This: Topic  Forum		I bought my DX-6 after hearing about the "range problem"... "park flier only".
I had to try this out myself, and have flown 2 meter gliders to just almost out of sight with it.
Apparently the range restriction was more due to "shadowing"... large objects in the plane could hide the receiver with its short antennae from the transmitter at some distance than any actual problem receiving the signal.
The cure obvious to me was two receivers, spread about a foot apart, sideways... along the wing's span. Either receiver would then always "see" the transmitter, regardless of the orientation or amount of large stuff.. thinking big gas motors or monster Lipo packs.
With the longitudinal layout almost a requirement in a heli, it might pat to put the second receiver on the other side of any large parts in the bird.
Or on outrigger wings, like weapons pylons.
11-27-2006 Over year old.
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Barney
Key Veteran
Location: Inverness Scotland

My Posts This: Topic  Forum		How would using a Tx mit effect the range if at all?
11-29-2006 Over year old.
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Yug
rrMaster
Location: UK. Herts

My Posts This: Topic  Forum		Probably a bit, depending on what it's made of
11-29-2006 Over year old.
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doorman
Elite Veteran
Location: E.Berne, NY

My Posts This: Topic  Forum		Who the H** Highjacked This Post???

Opp's must be the medication....

Team Hirobo/MRC --- RCLIGHTS.NET ----- If there is a cure for this, please don't tell me about
11-29-2006 Over year old.
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JKos
Elite Veteran
Location: City of California in the state of Maryland

My Posts This: Topic  Forum		> How would using a Tx mit effect the range if at all?

Since the antenna would stick out the top of the mit just as your current antenna does, it should have very little to no effect.

- John
11-29-2006 Over year old.
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Radio - JR & Spektrum DSM > My experience with the DX7 spread spectrum radio
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