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HelicopterRadio - Spektrum DSM › DX7 questions (yes I read the other posts)
11-26-2006 11:11 AM  11 years agoPost 1
gorn

rrElite Veteran

Western Australia

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Hi guys
I just got a DX7, it came set in flight mode 1.
I cant see anything in the manual about changing it to flight mode 2?
Maybe Im just not seeing it?
Any help on this?
Also, the servos that come with it, any idea what the speed and torque of these servo's are?
Bit bummed actually, as I just found out today that I will not be able to fly my gasser with the DX7 at any Aussie clubs.
It has been knocked back for use here
Stupid old farts just dont understand the system so they just say no.......
Thats my perception anyway.
Cheers

For the love of the hobby

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11-26-2006 02:13 PM  11 years agoPost 2
martinic

rrKey Veteran

NB, Canada

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According to what I've read, the mode is not user configurable. It apparently needs to be sent to Horizon (or authorized center) to be reconfigured.

The DS281 servos are simply the JR281 servos rebranded.

Full detaled technical specifications can be found on the Spektrum website:
DS821 Sport Digital Servos

Torque: 72 oz/in @ 4.8v, 88 oz/in @ 6.0v
Speed: .19 sec/60deg @ 4.8v, .15 sec/60 deg @ 6.0v
Size: 1.50"x.94"x1.47"
Weight: 1.5 oz
Ball-Bearing: Single
Motor: Cored
Also according to what I've read, the Aussie cert process is apparently underway and won't be much longer.

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11-26-2006 02:20 PM  11 years agoPost 3
gorn

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Western Australia

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Cool, thanks very much.
I'll take the TX back to my LHS and see if I can exchange it.

For the love of the hobby

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11-26-2006 04:53 PM  11 years agoPost 4
George Matthews

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N.W. Ohio

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You care to explain why the DX7 can't be used at your clubs?
Sounds like you might have a bunch of old farts dictating club policy.

George Matthews

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11-26-2006 05:55 PM  11 years agoPost 5
nivlek

rrProfessor

Norfolk England

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You care to explain why the DX7 can't be used at your clubs?
It is probably the same as in the UK , the 2.4Ghz band hasn't been legalised for RC aircraft .

At the end of the day , it gets dark .

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11-27-2006 12:55 AM  11 years agoPost 6
wuzofoz

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Brisbane,Queensland- Australia

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check he back menu. the 1 you can only enter when turning on the radio.

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11-27-2006 02:16 AM  11 years agoPost 7
gorn

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Western Australia

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As Nivlek said, hasnt been legalised for aircraft use yet.

Wuzofuz, I'll check that out mate. Cheers

For the love of the hobby

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11-27-2006 02:26 AM  11 years agoPost 8
gorn

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Western Australia

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Just had another flick through the manual......back menu?
Do you have a page number? I cant see anything at all regarding switching modes.
I rang the dealer, and apparently they have to send it back to have it changed over

For the love of the hobby

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11-27-2006 12:49 PM  11 years agoPost 9
wuzofoz

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Brisbane,Queensland- Australia

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i was thinking of the 2610 and x378 had the mode options (1 to 4) in the back menu. neither had any mention in the instuctions.
just thought it may still be there for the dx7.

edit. the back menu is described as function mode in the manual.

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11-27-2006 01:29 PM  11 years agoPost 10
gorn

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Western Australia

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Wuzofoz
I called my LHS, he got back to me later today........get this.....as of this moment there are NO Mode2 DX7 TX's available......anywhere!!
Said they are working on something to change it over, as apparently its not a simple 5 minute job like a normal TX.
This is ridiculous!!
I emailed Horizon Hobby, but no reply yet.
At this stage it looks like Im taking the TX back and coming home with a Zenoah G231 and some change.
Back to the Optic 6 until the DX7 situation changes.
Still cant believe it really.....

For the love of the hobby

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11-27-2006 09:13 PM  11 years agoPost 11
Adams

rrApprentice

Champaign Il. USA

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Mode Change
Switching modes requires CPU reprogramming and gimbal harware switch-over. While a skilled modeler could easily make the hardware change, reprogramming needs to be done by our service center. John Adams Technical Director, Horizon Hobby.

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11-27-2006 09:13 PM  11 years agoPost 12
cptsnoopy

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Phoenix, AZ USA

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This is irony... I need a mode1 Heli version DX-7 (pre-ordered 2 months ago) and you guys only get what I need. What do you bet that they send only mode2 airplane versions to the US?

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11-28-2006 12:32 AM  11 years agoPost 13
AirWolfRC

rrProfessor

42½ N, 83½ W

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Why would it take programming to change from mode 1 to mode 2 ?
Once you swap the pots, you're done.

That's all mode1 / mode 2 defines, the position of the pots.

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11-28-2006 01:10 AM  11 years agoPost 14
cptsnoopy

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Phoenix, AZ USA

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it used to be that simple, now it includes the digital trims. If you have not tried it on a digital trim radio it is a pita... lots of soldering...

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11-28-2006 01:18 AM  11 years agoPost 15
AirWolfRC

rrProfessor

42½ N, 83½ W

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Moving wires on a digital trim switch can't be any worse than moving wires on a pot. . . . Oh yes, move the elevator spring.

But still, no programming, and quicker than sending it back in.

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11-28-2006 02:35 AM  11 years agoPost 16
gorn

rrElite Veteran

Western Australia

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Adams

When the Aussie distributer was asked about the change over, they said it will cost $25 and they have NO timeframe on when that option will even be available.
Are you guys able to do Mode 2 now, or is there a problem?
Thanks for coming on and explaing a bit about it too, much appreciated.

For the love of the hobby

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11-28-2006 02:57 AM  11 years agoPost 17
cptsnoopy

rrApprentice

Phoenix, AZ USA

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I got a response from Adams that indicated a firmware flash would be required to switch modes in addition to the physical stuff. I would speculate that they ran out of memory and only load one mode or the other. Or, they got tired of us switching them ourselves and decided to make it nearly impossible without just moving the wires over for the two pots and the two trims.

AirWolfRC, not harder just takes longer and requires extending more wires... just more of a pita... (not to mention warranty issues on a brand new unit)

gorn, I know this sounds obvious but, did you order a mode2 radio and get a mode1?

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11-28-2006 03:07 AM  11 years agoPost 18
gorn

rrElite Veteran

Western Australia

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I just ordered 1 from my LHS without ever thinking that if it was Mode 1, the change over would be this hard!
My LHS did the same thing.

For the love of the hobby

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11-28-2006 02:37 PM  11 years agoPost 19
AirWolfRC

rrProfessor

42½ N, 83½ W

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I got a response from Adams that indicated a firmware flash would be required to switch modes in addition to the physical stuff. I would speculate that they ran out of memory and only load one mode or the other. Or, they got tired of us switching them ourselves and decided to make it nearly impossible without just moving the wires over for the two pots and the two trims.
This from the same guys that advertised 1024 resolution for both the DX6 and the DX7 and we all know that isn't true at the servos which is the only place it means anything.

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11-28-2006 02:41 PM  11 years agoPost 20
Adams

rrApprentice

Champaign Il. USA

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Mode change
We can make the mode changes now. Just send us your transmitter. I'd recommend not changing the pot/ trim wires. The stick travel on throttle has a reduced throw plus it would be necassary to recalibrate the pots to the program. If you send the system to my attention (John Adams) I'll do the mode change the same day it arrives free of charge. Any comments on how the DX7 system is working for you guys?

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HelicopterRadio - Spektrum DSM › DX7 questions (yes I read the other posts)
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