Rcpilot

My Feedback: (78)

I edited the pics to show top view and side view.

My apologies for the confusion earlier.

BuschBarber

My Feedback: (2)

Thanks!!

Rcpilot

My Feedback: (78)

So, where's the guy that started this? Was it an install problem or not?

I'm man enough to admit I did it wrong and it almost cost me a plane. I just got lucky.

Zor

You are a good person Rcpilot.

Thanks from me as well.

Zor

John Redman

My Feedback: (8)

Thanks for the clarrification RCPilot. Sorry I missed the top view thing. I agree with you, #3 and #4 are not good installs.

Thanks,

aronph

interesting thread, seems how im about to put an ar7000 in a 3DHS 57" Extra 300 SC....

BuschBarber

My Feedback: (2)

I have been flying a 29% Aeroworks Katana, with an AR7000 and an AXI5330 electric motor, all last summer, without a hint of a glitch. I am using a JR XP9303 with the Spektrum Module.

Prop_Washer2

My Feedback: (26)

Sounds like the ole' JR/Spektrum Death Roll...See DSMX Upgrades, it was done for a reason...!! I had a DX-7 flew it about 20 flights, no problem but others have had problems. When that throttle goes to the firewall, HANG ON..!!!

I sold it and went with an Aurora 9. The DSMX does look like it will resolve some issues for Spektrum and JR though. I'm not trying to start a fire here, just looking at the facts especially in unique RF environments/interference situations.

http://www.rcuniverse.com/forum/m_10...m.htm#10337656

lopflyers

My Feedback: (12)

I had a similar issue with an AR6200/Dx6i. I bought this plane used, it had an old 72Mhz rx. I changed to an AR 6200. Test range was good. On the first flight it loose all comunication for about 2 secs, good thing that I was 2 mistakes high.
Landed it, rebound it, re charge it and took off, you guess it, happened again.
I started a threat about it here and someone got the problem. There was a metal rod going from one of the servos exposed and too close to the rx. I covered it with thick rubber and moved the rx farther from it, Problem fixed.
2.4s dont like metal too close to the rx.

chuckhanger

My Feedback: (21)

Change to DSMX

BuschBarber

My Feedback: (2)

There is no DSMX upgrade path for my Spektrum Module. I will continue to enjoy my DSM2 receivers until I decide to buy a newer radio, sometime in the future.

HoundDog

My Feedback: (49)

Seen Loss of signal with 2.4 alot and all brands ... Doesn't ever happen with my Futaba PPM or PCM ... Sorry boys but U just have to have the new and improved and UNPROVEN stuff when the old tried and true now works better than ever... OH Well.

Rcpilot

My Feedback: (78)

Excuse me

Your post makes an assumption that everybody drank the kool-aid and jumped on the wagon as soon as this technology was introduced. You couldn't be more wrong. Some of us waited more than just a few years before purchasing these new systems. Matter of fact, I'm still flying my old JR8103 on small electric planes. I only use 2.4 on gassers.

Rcpilot

My Feedback: (78)

I wish I had some facts and data to back this up, but I don't, so I'll just say it.

I'll bet you a donut that 99% of all Spectrum problems are end-user error. There's nothing wrong with the technology. It's the user who installed it incorrectly that is causing the problem.

Zor

[quote]ORIGINAL: Rcpilot



I do not see any such assumptons that everybody is involved .
I think and understood that he was referring to those that have lots of money and cannot resist the new advertised hardware.

Zor

Prop_Washer2

My Feedback: (26)

Spektrum and JR, just too funny to get those 2 spikes, and lick and stick just right...Jeez...Can you say DSMX...Duh..??

Prop_Washer2

My Feedback: (26)

What Frequency are you on...I can take you out by turning on my Transmitter, All Frequencies and shift..Hitec Eclipse 7 Spectra..!! 72 MHz is vulnerable..DUH...

invert0914

My Feedback: (17)

[

[/quote]

I wish I had some facts and data to back this up, but I don't, so I'll just say it.

I'll bet you a donut that 99% of all Spectrum problems are end-user error. There's nothing wrong with the technology. It's the user who installed it incorrectly that is causing the problem.

Sorry but total garbage and this is why so many people are angry. I personnaly had my setup checked by 2 Jr reps at Joe Nall last year and my set up was fine. A 3rd rep who I will keep un named told me that with so many transmitters on after 5 oclock you are flying at your own risk. The sytem couldn't handle it. Of course Jr stayed in denile of this and lied to everyone untill now. Now in referance to sunday flying and this guys issue. My Spectrum receiver 6200 crapped out after 2 years for 3 seconds and cost me $3000. Nothing wrong with setup. All servos were tested and data logger showed a hold and for what.NOTTAA!!! Horrizon's answer was put more satelite receivers in plane. GGGRRRRRR.

skipper_gr

My Feedback: (1)

I want to offer an oservation: During my time in the USAF I was part of the acceptance team inspecting the cortractor installed intersite microwave system at an airfield in north africa. System had broad band transmit/recieve requirments over water and desert. Frequency assignment was in the 7,000 Meg range. Acceptane included a 30 day operational test. System operated on two frequencies antennas were arranged in horozontial and vertical polarities, seperated roughly 10' apart, vertically, on the same tower, roughly 250' off the ground. Now thew point of all this rambling: part of the test was to record the signal strenght of each path (freq A horiz & vertical, freq B horiz & vert) at the recievers ans also record the combiner output for thirty days. Thus we could see what was happening to each signal & simultaniously see the data output. We poured over these records and did not find a single incident of signal droput an all channels at the same time! There were many occurances of two and three channels down but the combiner output remained constant. The contract requirment was 99.97% reliability whic was clearly met. We signed off on the contract & the system was reliable until the USAF pulled out of the country. Questions?[8D]

cometravi

Thanks for your observations guys... The rx didn't go into failsafe. it was full throttle and aileron's were max'ed.

The pic is how Spektrum tells us to mount rx's as per the DX 7 Manual[img][/img] and that is how i did mine. They better not be wrong or send me a new plane!!

Btw is there a current limit for the AR7000? I mean how much current can it take before it shuts down..has to be a limit i guess?

BuschBarber

My Feedback: (2)

Looks right to me.

turkey hunter

My Feedback: (10)

72 MHZ is vulnerable, DUH! However 90% of the time you could figure out what caused
the problem. From what I have been reading about failures with the new 2.4 systems nobody, and I mean nobody
seems to have a handle on these problems. Y axis, X axis, horizontal plane, vertical plane, damn I'm glad I still
fly mostly 72 MHZ. All I have to do with the antenna is run it straight and make sure it is not coiled up! I do
have a 2.4 system, but it's not going into my Ziroli warbird but in a .40 size sport plane. After reading all the
posts about problems with 2.4 systems, I'm taking the wait and see approach.

blhollo2

My Feedback: (278)

sorry for your loss..i feel futaba is a better system, very little errors and NEARLY bullet proof.

cometravi

Futaba looks like a better system. Have got a 10CG on the way..

Zor

It is preferable to use both polarization.

In the picture both antennas are in the same plane.

Zor