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Radio - Servo - Gyro - Gov - Batt > TX/RX eCCPM Latency Test Results
 
 
JKos
Elite Veteran
Location: City of California in the state of Maryland

> Am I correct in observing that you support Spektrum's callus
> attitude ?

No, I would love to know absolutely every detail of every thing I buy. But that just ain't going to happen. It's far from "callus"; it's called normal business. You just don't get the dirty details on consumer electronics.

That being said, a simple matrix of what gets you 2048 would seem rather simple to make. But even Futaba couldn't keep their story straight on that for a while.

Eco,
I agree with you. Lower and consistent latency along with good CCPM performance (for CCPM helis, of course).

- John

Protos -- Logo 10
06-04-2008 10:33 PM
 
 
Ace Dude
Elite Veteran
Location: USA

Quote 
Am I correct in observing that you support Spektrum's callus attitude ?

When I deal with a company, I like to feel that they are at least interested in the product as they are in taking my money.

Wolf, perhaps your concerns would best be addressed in a separate thread since they are more marketing oriented than addressing Latency Test Results which is what this thread is about.



06-04-2008 10:36 PM
 
 
TMoore
rrProfessor
Location: Cookeville, TN

Speaking of latency numbers, where might the RDS numbers be?

"If you can do it, it ain’t bragging." - Will Rogers
06-04-2008 10:48 PM
 
 
Slartybartfast
Senior Heliman
Location: Somewhere in England

John,

You won't get any answers from Spektrum. Apparantly PB has been told not to answer questions but to concentrate on development !

06-08-2008 10:53 AM
 
 
9387ASH
Elite Veteran
Location: UK

Interesting to note that Paul Beard's last post was to sell his heli !!!

They must have him shackled to his desk !



(Slarty, I assume that's who you meant when you said PB ? )
06-08-2008 10:56 AM
 
 
Harris
Senior Heliman
Location: A Greek in Cyprus

John,

There are several CCPM mixers in the market. Any plans to test them and see how they perform?
06-08-2008 11:56 AM
HOMEPAGE  
 
 
JKos
Elite Veteran
Location: City of California in the state of Maryland

Harris,
I posted numbers for the CSM CycLock a while back here: http://www.runryder.com/helicopter/t392335p1/. Haven't been able to get my hands on a Heltronix unit.

- John

Protos -- Logo 10
06-08-2008 03:31 PM
 
 
Paul Beard
Senior Heliman
Location: San Jose CA

DX6i and DX7 are 1024 resolution.
AR6100, AR6200 and AR7000 are 1024 resolution.

12X and x9303 are 2048 resolution.
AR9000, AR7100R, AR7100, AR9100, AR9200, R921, R922, R1221 and R1222 are 2048 resolution.


Note:

If you bind a 12X and x9303 to say an AR6100 receiver, the resolution is 1024.

If you bind a DX7 to say an AR9000 receiver, the resolution is 1024.



Paul
06-08-2008 04:00 PM
HOMEPAGE  
 
 
JKos
Elite Veteran
Location: City of California in the state of Maryland

Thank you Paul!

- John

Protos -- Logo 10
06-08-2008 04:37 PM
 
 
AirWolfRC
Elite Veteran
Location: 42½ N, 83½ W

Yes, thankyou for that much, though still no confirmation on the difference between the AR9000 and JR921

It's a shame that information and clarity can't be found on the Spektrum site.

Seems like we're only good for being the target of their marketing
06-08-2008 05:52 PM
HOMEPAGE  
 
 
Slartybartfast
Senior Heliman
Location: Somewhere in England

Mr Beard Sir,

Would you be so kind as to answer my question in the Spektrum subforum regarding Duty Cycle ?

Ta muchly.

Stan
06-08-2008 06:08 PM
 
 
Paul Beard
Senior Heliman
Location: San Jose CA

Sorry Stan. That's proprietary info.
Paul
06-08-2008 08:25 PM
HOMEPAGE  
 
 
Slartybartfast
Senior Heliman
Location: Somewhere in England

Really ? Oh.... okay....

06-08-2008 09:10 PM
 
 
AirWolfRC
Elite Veteran
Location: 42½ N, 83½ W

Stan,
There are a number of digital storage scopes that can easily give the answers you want, proprietary or not.
06-08-2008 09:11 PM
HOMEPAGE  
 
 
TheSteve
Heliman
Location: Vancouver, BC, Canada

Something to keep in mind with the x9303 and 12x is that if you have a specific model memory bound to a AR6100/AR6300/AR7000(1024 res) and then bind an AR9000/R921 R1221(2048 res)to the same memory the original receiver will indicate its receiving a signal but it won't work correctly.

This isn't something thats likely to happen but I experienced it once as I was using a model memory setup for an AR6300 and wanted to quickly test my R1221 receiver so I quickly bound it to the model memory that was already loaded. Later I went to fly the heli with the AR6300 and it didn't work. The AR6300 showed it was receiving(orange LED was on)
but didn't seems to give much output, it did drive a servo hard over though. Rebinding fixed the issue of course.

So in summary, don't mix 1024/2048 receivers and always use a new model memory to test a receiver.
06-08-2008 10:34 PM
 
 
JKos
Elite Veteran
Location: City of California in the state of Maryland

TheSteve,
Did you rebind the AR6300 after using the R1221?


Slarty, AW,
> There are a number of digital storage scopes that can easily give
> the answers you want

You don't even need a DSO. Any ol' scope will work. Simply monitor the supply voltage at the RF/Spektrum deck using ground as close to the battery as possible for reference [the more resistance in the supply path (both positive and negative) the better]. You'll easily see when it's transmitting.

- John

Protos -- Logo 10
06-08-2008 11:02 PM
 
 
TheSteve
Heliman
Location: Vancouver, BC, Canada

JKos - I didn't rebind the AR6300 after using the R1221 initially. Once I noticed the AR6300 didn't work I did rebind it and it was fine of course.
I've done similar testing in the past as I've had a ton of receivers at my place to modify them(mostly AR6300s) They were all 1024 res receivers so it was never a problem.
The R921 that came with my x9303 and the R1221 that came with my 12X though are 2048 res of course and I didn't think about the problem initially of just rebinding different receivers over and over to the same model memory.

For anyone who wondered this is clear proof the DSM2 receivers do transmit back to the transmitter during binding to give the transmitter details regarding the receiver specs.
Sorry I posted this in your latency thread, but I am sure others will come across the same situation someday.
06-08-2008 11:24 PM
 
 
Skybolt
Heliman
Location: Ontario, Canada

Hi JKos,

Apparently the Futaba 10C is on its way as per a post in FASST section.

Do you have any plans to test this new radio in a near future?
06-10-2008 05:22 PM
 
 
Pepe Toño
Senior Heliman
Location: Mexico, DF - MEXICO

I take this from the www of Futaba

Over 2x Less Minimum Latency

Latency is the elapsed time between your movement of the transmitter controls and servo response. In Futaba 2.4GHz FASST systems, that response can happen over twice as fast – so you feel less like you're "out in front" leading your model, and more like you're inside driving or flying it.

Comparing the 6EX FASST system to the DX7.



If this is truth 10c it is very cheap,



Un saludo desde Mexico
06-18-2008 09:38 PM
HOMEPAGE  
 
 
Tomas Ahl
Senior Heliman
Location: Linköping, Sweden

Pepe,

I think the two most important words in that paragraph are "Minimum" in the heading and "can" in the third line. Both imply that the reduced latency may be the case, softening the paragraph from promising this to always be true!

In other words, marketing speach...
06-19-2008 07:22 AM
 
 
48 pages [ <<    <     44      45     ( 46 )     47      48     NEXT    >> ]75090 viewsPOST REPLY
GrandRC . CanoMod . Futaba-RC

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Radio - Servo - Gyro - Gov - Batt > TX/RX eCCPM Latency Test Results
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