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12-11-2013 10:20 PM  5 years ago
AWittleWabbit

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O.C., CA

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Uh oh, I've been running DSMX SATs with my DSM2 11X since day one. I've only looked at the log after the first couple flights. There were maybe 3-4 antenna switched events.

This seems to be a, um, hot topic. Looks like I have some reading to do.
Heli-itis sufferer.
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12-11-2013 10:58 PM  5 years ago
Ronald Thomas

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Gainesville, Fl, USA

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The issue is, how do you know if you have old sats? Better to be safe.Team MikadoUSA 480XXTreme, 550SX, 600SX, 700XXTreme, 800XXTreme!!
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12-11-2013 11:16 PM  5 years ago
Climax

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West London, United Kingdom

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There may have been the odd antenna switching message from time to time, but generally I don't see them.

As I understand only the DSMX satellites have the fix. All of the newer ones can be easily identified as they have a large X embossed on them. I think that the very first DSMX satellites had a different serial number, or other subtle marking. Somewhere there is a thread that explains how to identify them...
Electronics, Physics, Helicopters, Fixing Things...
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12-11-2013 11:30 PM  5 years ago
cudaboy_71

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sacramento, ca, u.s.

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There is absolutely no issue with running ALL DSMX sats with a DSM2 TX. "mixing" refers to mixing DSM2 and DSMX sats.

Careful with the rumors you're starting, guys. Read the manual. It's all pretty clear.
if it ain't broke, break it.
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12-11-2013 11:31 PM  5 years ago
Climax

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Indeed!Electronics, Physics, Helicopters, Fixing Things...
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12-12-2013 12:48 AM  5 years ago
BobOD

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New York- USA

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Crystal.

The thing is that Pulsar110 was indeed using all DSMX sats but having trouble. I guess it is mixing a dsm2 tx with dsmx sats but using the "mixing" term isn't so appropriate for those familiar with the tech. We all are talking about "all" dsmx vs "all" dsm2 sats here though.
Team POP Secret
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12-12-2013 01:54 AM  5 years ago
AWittleWabbit

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The issue is, how do you know if you have old sats? Better to be safe.
Are there versions of DSMX sats? Is that why some have problems? I haven't had a chance to get read up yet.
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12-12-2013 02:14 AM  5 years ago
BobOD

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I was wondering the same thing or if that was just a back pedal.

I do not know but the Mikado developers were saying it worked back when they were using the early dsmx sat versions.

You need to consider any revision history of the TX as well, I suppose.
Team POP Secret
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12-12-2013 04:40 AM  5 years ago
pulsar110

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USA

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Gentlemen,
When I started this thread I certainly did not intend for anyone to get into anything heated. I know what the Spektrum/JR manuals say and for the purposes of their products they are right. I am "guessing" here but it stands to reason in my mind that this issue maybe strictly limited to Vbar. I say this because I have a very high regard for Mikado and the products we get from them. They are top notch and high quality with that great German tight tolerance engineering. You combine that fine German stuff with our Asian stuff and there is bound to be some oddities such as this. I might be totally wrong but that's how I see things at this point.

All that said I can tell you this. I bought this Trex a year ago last September and have been flying it since. Not as much flying as you guys but I prolly put 50 flights on it with the DSMX satellites. I have watched the logs every little while. Crashed it with my dumb thumbs twice. I love the Vbar and the adjustability it has. After I started this thread and Mr Laughingstill responded I changed to DSM2 sats. Iv flown the heli twice since then and looked at the log only to find that the number of switching messages had fallen to only a couple per flight and tons of Good Health messages.

Hopefully this all makes sense to you guys....
Fly it like its a rental...
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12-12-2013 05:10 AM  5 years ago
BobOD

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New York- USA

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I don't see anything heated....unless you've gotten PM's or something.
Yes, you're issue is solved but I was just wondering what's changed that makes using DSMX sats with a dsm2 tx a disaster.
Team POP Secret
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12-12-2013 07:20 AM  5 years ago
Climax

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West London, United Kingdom

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I have had problems with individual satellites in the past, i.e. they would work unreliably, wouldn't tolerate vibration or had faults with the connector leads.

In these cases replacing them like for like fixed things. I even "reflowed" one once as an experiment which also fixed it!
Electronics, Physics, Helicopters, Fixing Things...
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12-12-2013 05:41 PM  5 years ago
rcflyerheli

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Granbury, TX USA

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According to my DX9 manual, at least with that transmitter, if you have DSMX encoding selected on the frame rate page, it will know if the receiver is DSMX or DSM2, and will bind accordingly. If you have DSM2 selected on the frame rate page, it will again bind with either a DSMX or DSM2 RX, but it will bind in DSM2 mode.

When I first got into helis, there was a problem with the Vbar, as well as the Skookum if you tried to bind in high speed mode. I assume that means in 11ms frame rate.

I am running my Skookum on standard frame rate and with DMS2 sats and have never had any issues. I did talk with the guys at Horizon and was told not to mix sat and main receiver types. Since the Vbar isn't a main receiver, it uses either type of sat. You just have to tell it on the receiver tab in the initial setup what type you are using. I was told if you are running DSM2 to setup using Spektrum sats digital center(1 or 2) , and of course running DSMX sats with DSMX sats 11 or 22ms (1 or 2).
Logo 700, Specter 700, Goblin 700, Trex 700DFC, Gaui X7, Logo 690SX, Logo 600SX; Trex 470 Trex 500
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12-20-2013 12:41 PM  5 years ago
Richardmid1

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Leeds, England

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I will possibly soon to be new to Vbar and the need for 2 satellites (AR7200BX at the moment). I use a DX7 (DSM2) and have 2 spare satellites but one is DSMX and one is DSM2, reading this thread I get the impression this is bad practice but my friend (Vbar nut for years) assures me that the DSMX satellite will simply use DSM2 as the signal is from a DSM2 TX?

Which is right???
60% of the time, it works every time!
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12-20-2013 01:27 PM  5 years ago
Climax

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West London, United Kingdom

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It will use DSM2, but the newer DSMX satelites fix a DSM2 bug. So best to use 2 DSMX satelites (but they will operate in DSM2 mode).

It is not recommended to mix the 2 satellite types, do so at your own risk...
Electronics, Physics, Helicopters, Fixing Things...
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12-20-2013 01:56 PM  5 years ago
Richardmid1

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Leeds, England

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Thanks. I will get another DSMX satellite.60% of the time, it works every time!
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12-20-2013 02:29 PM  5 years ago
Climax

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West London, United Kingdom

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Good move, best to play it safe!Electronics, Physics, Helicopters, Fixing Things...
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12-20-2013 04:25 PM  5 years ago
pulsar110

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USA

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Yes Richard once you get it all together and programed up and tested thoroughly then have a look at the log in the Vbar and make sure it is full of "Good Health" messages. That's how I discovered not all was well in my system. Im away from home right now but when I get a chance I want to try it again with the DSMX sats that I have and see if I can get it all to work right. Mostly out of curiosity sake and Im learning this thing still.Fly it like its a rental...
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01-23-2014 12:53 AM  5 years ago
kruuuzn

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Traverse City, MI

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Should there be any "switching satellite" warnings in the vbar log at all?
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01-23-2014 01:16 AM  5 years ago
pulsar110

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USA

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There are a couple threads over on the "other" website in the vbar page that talk about this issue a lot more. Worth your time. In short from my understanding a few in a flight are ok as long as they are not back to back.Fly it like its a rental...
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