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Old Oct 12, 2012, 07:55 PM
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RyanNX211's Avatar
Upper Arlington, Ohio
Joined Dec 2007
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Originally Posted by ASCforithobbies View Post
Ahhh the joke called Spektrum or as I call it SPEKCRAP never ever again!!! Lost ziroli 118" B-25 on a DX7 after that brown out I sent it in for repair was told nothing wrong they sent me a new rx. I then put it in a cheap foamy lost it first flight less then 100 feet out, after that I smashed the DX-7 and RX and gave it a viking funeral!!

Maybe you could've converted it to something more reliable
http://www.rcgroups.com/forums/showthread.php?t=1716241
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Old Oct 13, 2012, 01:22 AM
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Deutschland, Hessen, LA
Joined Jan 2009
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Originally Posted by RealGambler View Post
Guys, we are talking about VERY LOW milliseconds timing here! Yes, a pro may see (or more feel) a difference, but trust me, typical human fingers/eye coordination (most of us) will not see any difference. Heck, I think most people who buy servos look for the price first, then the torque specification, but sadly totally disregard how fast it goes (unless they use it with a gyro that recommend something specifically because fast timing is then important). Trust me, even if a servo signal is received 10 millisecond later, it would not be bad for most of us. As I said, often the servos being used are slower than what the receiver can feed them anyway. This is just marketing hype (and mostly simply because new technology kicking in, making it easier to implement such thing).

Heck, in winter, your fingers probably have a 400millisecond response time!
With slower frame rate is the difference indeed evident with a PPM like chema. With PPM (Hitec, FrySky etc.) one servo after the other response. 3x20ms=60ms with a 120°swashplate. With pitch move the rotor to the one side down or high and then back. A looping becomes more a spiral with Stone Age PPM. The effect is even visible with a four servo evelon wing, with PPM see you the delay between the first and the last servo. Same effect a Looping is not a Looping when you not make some unnecessary control inputs to comensate this. Ask maybe a RC car driver about latency. With low latency has he a consistent direct turn-in point, with PPM varying random the turn-in point.

But the 3 1/2 digtal throttle control flyer realized this sure not.
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Old Oct 13, 2012, 04:35 AM
X-Ikarus
Reflex1's Avatar
United Kingdom, North York
Joined Feb 2003
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Quote:
Originally Posted by RyanNX211 View Post
Maybe you could've converted it to something more reliable
http://www.rcgroups.com/forums/showthread.php?t=1716241
I have also done a few conversions

JR DSX9 II, DSM2, to dedicated FrSky Telemetry
http://www.rcgroups.com/forums/showthread.php?t=1669799 from Post #7

DX-7 to dual use (he now Only uses FrSky mode,totally by his own choice)
http://www.kirkleathamemfc.co.uk/vie....php?f=5&t=101

Futaba T6EXA, 35Mhz to 2.4Ghz (just to show other makes can be converted)
http://www.kirkleathamemfc.co.uk/vie....php?f=5&t=166

A DX7 user has moved to a Futaba 10C with FrSky module
a Futaba 9C user with DSM2 Tx module has moved to Futaba 10C on FASST

No more DSM2 Lockouts on their models,
and ONLY the Rx's changed in the models !


I wonder if the lower RF output power allowed in the UK
goes anyway to explain our issues, compared to other places,
or if it's just a "noisy" RF environment here,
although only a max of 6-8 in the air at once ?

Only DSM2 is affected, the others cope fine
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Old Oct 13, 2012, 06:02 AM View Post
skyrock
A moderator felt this post violated the following rule: Trolling (Provocation). It is temporarily hidden while skyrock edits it. Show it to me anyway.
Old Oct 13, 2012, 06:49 AM
Way to many airplanes!
Canada, QC
Joined Oct 2009
5,453 Posts
Quote:
Originally Posted by Kambalunga View Post
With slower frame rate is the difference indeed evident with a PPM like chema. With PPM (Hitec, FrySky etc.) one servo after the other response. 3x20ms=60ms with a 120°swashplate. With pitch move the rotor to the one side down or high and then back. A looping becomes more a spiral with Stone Age PPM. The effect is even visible with a four servo evelon wing, with PPM see you the delay between the first and the last servo. Same effect a Looping is not a Looping when you not make some unnecessary control inputs to comensate this. Ask maybe a RC car driver about latency. With low latency has he a consistent direct turn-in point, with PPM varying random the turn-in point.

But the 3 1/2 digtal throttle control flyer realized this sure not.
Agreed, but that NEVER mean you could not fly any old technology and not be happy. I was driving RC cars when Tamiya started producing them and trust me, nobody ever talked about latency back then. When I started flying airplanes, my only worry was if a truck driver would start talking on his C.B. (or if somebody else would turn on his Tx on the same freq), not about how fast the signal would get to the servo (servos that were awefully slow back then anyway). This was driven to us by marketing, more than what we felt when flying. Sure enough, we were not doing pirouettes or tick-tock with heli back then (heck, there was not even gyro to hold the tail for us) so today, this is becoming more important. New servos are faster and digital, there's more electronic onboard. But again, for 95% of the RC users, those very thight timing are not the end of the world. Heck, some of them still fly with 256bits resolution transmitter and are happy!
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Old Oct 13, 2012, 07:00 AM
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Deutschland, Hessen, LA
Joined Jan 2009
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Quote:
Originally Posted by Reflex1 View Post
I have also done a few conversions

JR DSX9 II, DSM2, to dedicated FrSky Telemetry
http://www.rcgroups.com/forums/showthread.php?t=1669799 from Post #7

DX-7 to dual use (he now Only uses FrSky mode,totally by his own choice)
http://www.kirkleathamemfc.co.uk/vie....php?f=5&t=101

Futaba T6EXA, 35Mhz to 2.4Ghz (just to show other makes can be converted)
http://www.kirkleathamemfc.co.uk/vie....php?f=5&t=166

A DX7 user has moved to a Futaba 10C with FrSky module
a Futaba 9C user with DSM2 Tx module has moved to Futaba 10C on FASST

No more DSM2 Lockouts on their models,
and ONLY the Rx's changed in the models !


I wonder if the lower RF output power allowed in the UK
goes anyway to explain our issues, compared to other places,
or if it's just a "noisy" RF environment here,
although only a max of 6-8 in the air at once ?

Only DSM2 is affected, the others cope fine
But where is the prove for your claimes?
First link buys a JR DSX9 second hand and covenvert direct to FrySky.
The second link argument FrySky is cheaper as orginal Spektrum RX.
3. link FrySks is maybe better as FASST.
Where is the certificate of conformity where you need in the EU.
What mean you happen when something happen?
Dartmoor-prison?
Or for a suicide attempt death penalty.
Your law lord careens you then.
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Old Oct 13, 2012, 07:33 AM
X-Ikarus
Reflex1's Avatar
United Kingdom, North York
Joined Feb 2003
1,680 Posts
Quote:
Originally Posted by Kambalunga View Post
But where is the prove for your claimes?
No more DSM2 Lockouts on their models,
and ONLY the Rx's changed in the models !


First link buys a JR DSX9 second hand and covenvert direct to FrySky.
OP did. I didn't. I simply converted a friends JR DSX9 ( bought new)
and helped another user with his conversion.
Why you not read the WHOLE thread ?


The second link argument FrySky is cheaper as orginal Spektrum RX.
Yes. it's cheaper for him to buy FrSky Rx's than DSM2 Rx's AND his RF link is now more secure.

3. link FrySks is maybe better as FASST.
I never said FrSky is better than FASST ............ Just better/safer than DSM2

Where is the certificate of conformity where you need in the EU.
FrSky are CE certified

What mean you happen when something happen?

Dartmoor-prison?
Or for a suicide attempt death penalty.
Your law lord careens you then.
Ans. above in Red
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Old Oct 13, 2012, 07:44 AM
X-Ikarus
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United Kingdom, North York
Joined Feb 2003
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Quote:
Originally Posted by Kambalunga View Post
With slower frame rate is the difference indeed evident with a PPM like chema. With PPM (Hitec, FrySky etc.) one servo after the other response. 3x20ms=60ms with a 120°swashplate. With pitch move the rotor to the one side down or high and then back. A looping becomes more a spiral with Stone Age PPM. The effect is even visible with a four servo evelon wing, with PPM see you the delay between the first and the last servo. Same effect a Looping is not a Looping when you not make some unnecessary control inputs to comensate this. Ask maybe a RC car driver about latency. With low latency has he a consistent direct turn-in point, with PPM varying random the turn-in point.

But the 3 1/2 digtal throttle control flyer realized this sure not.
PPM timing issues and higher Latency
are hardly a concern during DSM2 Lockouts
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Old Oct 13, 2012, 07:50 AM
X-Ikarus
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United Kingdom, North York
Joined Feb 2003
1,680 Posts
I'm done in this thread
It's a total waste of time

DSM2 issues will never be accepted/admitted by Spektrum posters here.
Again. I'm pleased DSMX has been released
I just hope Spektrum users will change to it ASAP.
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Old Oct 13, 2012, 07:58 AM
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Upper Arlington, Ohio
Joined Dec 2007
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Quote:
Originally Posted by Reflex1 View Post
I'm done in this thread
It's a total waste of time

DSM2 issues will never be accepted/admitted by Spektrum posters here.
Again. I'm pleased DSMX has been released
I just hope Spektrum users will change to it ASAP.
I'm not sure DSMX solved everything
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Old Oct 13, 2012, 08:16 AM
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BoonVegas, Indiana
Joined Dec 2005
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!

Quote:
Originally Posted by RyanNX211 View Post
I'm not sure DSMX solved everything
it did.
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Old Oct 13, 2012, 08:19 AM
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Canada, ON, Rockland
Joined Aug 2008
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It didn't solve anything for me.... Because there was nothing to solve.

DMSX will solve issues for those that attended major events and had DSM2 issues with it's limitations.
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Old Oct 13, 2012, 09:58 AM
AndyKunz's Avatar
Illinois
Joined Sep 2001
23,015 Posts
It won't solve issues for those where the issue is not in the electronics, either But then again, nothing will, so ....

Andy
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Old Oct 13, 2012, 10:26 AM
Stop scaring my donkey!
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Greenland
Joined Mar 2012
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Originally Posted by AndyKunz View Post
It won't solve issues for those where the issue is not in the electronics, either But then again, nothing will, so ....

Andy
Well said....
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Old Oct 13, 2012, 10:38 AM
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Deutschland, Hessen, LA
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Quote:
Originally Posted by freechip View Post
It didn't solve anything for me.... Because there was nothing to solve.

DMSX will solve issues for those that attended major events and had DSM2 issues with it's limitations.
We saw never mass start from others system like Spektrum it's makes.
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