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HomeRC & Power✈️Aircraft🚁HelicopterRadio - Spektrum DSM › Actual range testing the DX7
03-31-2010 12:59 AM  10 years ago
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alexf1852

rrApprentice

Inverness, FL - U.S.

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Actual range testing the DX7
I know this might be a touchy subject but I need to know if I have a bad rx and/or tx. The DX7 I bought new in in February. The AR6200 I bought used on ebay. It does have at least v1.6 firmware because I do get flashing lights if I turn off the power and turn it back on again. And I also get immediate control of my servos. If I turn off the tx, the lights go out on the rx. I have the main rx in the Protos lower bay with the antennas straight out to the sides. The satellite rx I have mounted underneath the boom block with 1 antenna point back towards the tail and the other antenna pointing down.

At the site where I had 2 crashes on my Protos, I did a range check using the bind button at about 90 paces. It passed. I went out another 20 paces and it did not work. The servos barely moved in a choppy motion, not smooth. But I supposed that's ok since the pressing bind significantly reduces the transmitting power so you can range test without having to walk out 1000 ft.

Well I decided to do some actual testing of distance. I held the heli above my head in different positions which gave the signal to someone on the other end to move the sticks in a continuous fashion. The person would stop moving the sticks when I brought the heli down. The land is perfectly flat. No trees, no obstructions of any kind and the weather was really nice. Full charge on the lipo which powered my Jive ESC which in turn powered my rx and servos.

At about 100 paces, the servos moved in a smooth motion. At 150 paces, the servos moved in a choppy motion as if it was missing data. At 200 paces, the servos almost didn't move at all. But through out the whole test, the lights on both rx and satellite rx stayed on. The only time the lights went off was when I placed my body in front of the heli which I did for giggles. Other than that, it was all clear line of sight.

Should I send both the tx and rx back to Spektrum to get it checked out?

alex
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03-31-2010 05:51 AM  10 years ago
Justin Stuart (RIP)

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Plano, Texas

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Might as well send them both back. It is cheaper to get it checked out than to crash. You'll only pay for the shipping to Horizon. If you call them and act real nice, they might even pay for the shipping both ways. It will probably take 2 weeks to get it back. Do you have anything else to fly for that time period?Avant RC
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03-31-2010 07:38 AM  10 years ago
alexf1852

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Inverness, FL - U.S.

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I have a coax but I'd rather just use my esky tx and fly my phoenix sim. Plus I still have my Protos to take apart and rebuild.
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03-31-2010 01:13 PM  10 years ago
Justin Stuart (RIP)

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Plano, Texas

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Then send it back. It's better safe than sorry.Avant RC
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03-31-2010 06:06 PM  10 years ago
alexf1852

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Inverness, FL - U.S.

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I'm already sorry after spending over $400 in repairs for 2 crashes.

I'll be sending them back. That's for sure. I'm just waiting to see if Spektrum responds to my email.

alex
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03-31-2010 06:16 PM  10 years ago
Justin Stuart (RIP)

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Plano, Texas

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What do you mean, "If Spektrum responds to my email?"

Just box it up and ship it to this address:

Horizon Hobby, Inc.
4105 Fieldstone Road
Champaign, IL 61822

The sooner you ship it out, the sooner you will be flying again.
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03-31-2010 06:40 PM  10 years ago
rolexcomex

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USA

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Check out this video.

I dont trust the 6200, I had one failure that I can honestly attribute to the 6200 rx..

I have several 7000...never had an issue in thousands of flights.

http://www.youtube.com/watch?v=oHEtRIPIdTY
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03-31-2010 09:24 PM  10 years ago
alexf1852

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Inverness, FL - U.S.

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Thanks for the HH info. The reason I was waiting to hear back from them before doing anything is that I didn't have that info and I thought that one had to have some kind of return authorization code or number. But if that is not needed at all, then I'll box it up with a note this evening and send it back to them to check/repair.

Thanks again for the info. When I get the tx/rx back, I will sell the rx and get the AR7000.

alex
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04-02-2010 03:01 PM  10 years ago
Gary Hoorn

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Annapolis Maryland USA

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alex,
Horizon has a form on their website that you can fill in on your computer and pack with your radio.
Gary

http://www.horizonhobby.com/Content...erchecklist.pdf
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04-04-2010 01:27 PM  10 years ago
dizzymarkus

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Oswego, NY

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This thread has me spooked -- I have 8 birds 7 with 6200 rx's and never had any issues what so ever to date and been flying them all last season and a month into this one. Im not saying you guys are full of it , just got me spooked now about all the reports in this thread.
However if it was a huge issue Horizon(Spektrum) would have acknoledged it by now and there would have been a ton more threads on it I would think. This is the first I have heard of it. Yes I run one on the Protos :0)
Im open ears to this thread hehehe thanks for posting it

Markus
I reject your reality and substitute my own :0)
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04-05-2010 01:36 AM  10 years ago
alexf1852

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Inverness, FL - U.S.

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Markus,

I wouldn't worry. Lot's of people claim they have run their AR6200 out to long distances without issues. So I'm going to assume that I have a faulty rx and or tx. If Spektrum sends the tx and rx back and says there is nothing wrong with them, then I will bin the AR6200 and sell the DX7 radio. I already have bought the Futaba 8FG and will range test in the same place and in the same manner just to satisfy my curiosity. If it does the same, then there must be some strong interference going on in that area and I will have to not fly there.

alex
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04-05-2010 03:17 AM  10 years ago
drdot

rrElite Veteran

So. California, Orange County.

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fwiw...

When the DX 6 was first available...I installed a 6000 rx in a 600 e with metal frames....Buried the rx between the frames under the batt...Flew over 100 flights on this config with no issues whatever, most to way beyond the "Park Flyer" range suggested...The technology is sound.
I suspicion the issue may be with the Antenna coax in the tx...

John.
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04-16-2010 03:02 AM  10 years ago
trackemdown

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Central ,VA

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I agree with DRDOT.Grabbem-n-baggem
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04-16-2010 03:05 AM  10 years ago
trackemdown

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Central ,VA

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My first DX7 tx had to be sent back before of software issues. They fixed it free and I haven't had any problems since. It did cause me crash by loosing signal. Send it in for repair. There was no charge to repair mine.Grabbem-n-baggem
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05-26-2010 09:45 PM  10 years ago
alexf1852

rrApprentice

Inverness, FL - U.S.

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In the last week, I finally got around to sending my DX7 and AR6200 back for checking. Horizon Hobby just called me and said that the AR6200 performance was bad and did not have sufficient range. I bought this AR6200 w/ satellite used on ebay. So I didn't know the history of it. But HH is replacing it with an AR7000! That's awesome customer service!
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05-27-2010 12:38 AM  10 years ago
RAK402

rrElite Veteran

Alhambra, CA

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I have six or seven AR6200, all with quite a bit of flight time on them and have never had one glitch or fail.

There were issues with the very early AR6100's (multiple software releases followed), but not the 6200.
Team KBDD/Compass Team Manger/Experience RC/Team JR Americas/WR Field Rep
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05-27-2010 05:00 AM  10 years ago
alexf1852

rrApprentice

Inverness, FL - U.S.

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I'm not sure how many people fly the 6200 at a good distance away, but the one I had was definitely faulty. It passed the range test easily at 90 paces. But it had a maximum range of 200 ft. as told to me by the Horizon Hobby service tech. I bought it used and I don't know if the seller knew it or not that it was faulty. Pointless now that I've already spent hours and almost $400 in parts for my two crashes. I'm done with buying this kind of stuff on ebay. I'll be sticking to the classifieds on this site for future used purchases. But I do greatly appreciate HH for replacing the AR6200 with a brand new AR7000.
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05-27-2010 06:21 AM  10 years ago
RAK402

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Alhambra, CA

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"I'm not sure how many people fly the 6200 at a good distance away, but the one I had was definitely faulty."

I was not questioning that and did not intend to appear to be doing so. It sounds like you definitely had a bad one.

It was really nice of Horizon to send you an AR7000!

First rate service.
Team KBDD/Compass Team Manger/Experience RC/Team JR Americas/WR Field Rep
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