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HomeRC & PowerAircraftHelicopterRadio - Servo - Gyro - Gov - Batt › TX/RX Latency Test Results
04-05-2009 07:23 AM  9 years agoPost 1141
GimbalFan (RIP)

rrProfessor

Big Coppitt Key, FL

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Initial numbers for the SD10G are looking very good. Among the fastest that I've ever seen in a 10 channel radio. - TMoore
Butt of Coors.

op-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-t

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05-28-2009 02:40 AM  9 years agoPost 1142
Ace Dude

rrProfessor

USA

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Did anyone ever send one of those new Futaba high speed RXs to John for testing?

  

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05-31-2009 11:27 AM  9 years agoPost 1143
MaSt0RaS

rrApprentice

Greece

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A test with 12FG pls???

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06-03-2009 04:21 AM  9 years agoPost 1144
JKos

rrProfessor

Redondo Beach, CA

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Just posted numbers for the 10C with the R6008HS in high speed mode. The system is synchronous with this receiver both in high speed and normal mode.

Still no 12FG or SD10G.

- John

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06-03-2009 06:24 AM  9 years agoPost 1145
Paul Woodcock

rrElite Veteran

Dubai - United Arab Emirates

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Hi guys

Looks like my DX7se is now rubbish.... need a 10C!!!!

Regards
Paul

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06-07-2009 02:42 PM  9 years agoPost 1146
Four Stroker

rrElite Veteran

Atlanta

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John;

I may have to buy a new 12ZHG. It would be somthing like 4 times faster than my 12Z/TM14. Of course the new (non-Spektrum) JR's should be competitive.

John, I confuse myself. Is the speed increase all in the receiver ?

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06-07-2009 03:43 PM  9 years agoPost 1147
JKos

rrProfessor

Redondo Beach, CA

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> Is the speed increase all in the receiver?

It would appear so. One thing they did is align the rx output frame rate with the tx's transmission frame rate. Why it wasn't like that on all the rxs to begin with is beyond me.

- John

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06-07-2009 06:34 PM  9 years agoPost 1148
simon_t

rrNovice

Herne Bay, Kent, England

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John, is it likely that noise immunity is reduced in these faster Rxs? As I remember there were issues with the G3 Rxs which caused Futaba to introduce a slower G3 modulation option on the Tx/Rx. I imagine that the FaSST Rxs oversample, but have they sacrificed link robustness for speed?

Simon

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06-07-2009 09:46 PM  9 years agoPost 1149
JKos

rrProfessor

Redondo Beach, CA

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Simon,
> is it likely that noise immunity is reduced in these faster Rxs?

No. Remember that FASST is spread spectrum. They have not changed any characteristics of the transmission.

- John

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06-07-2009 09:53 PM  9 years agoPost 1150
simon_t

rrNovice

Herne Bay, Kent, England

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No. Remember that FASST is spread spectrum. They have not changed any characteristics of the transmission.

- John
But was the Rx previously taking more samples in slower time? I have always believed that there is so much bandwidth available at these frequencies that it should be possible to have a very high frame rate compared to 35/72MHz, and oversample, as there is really so little data being transferred compared to a voice or data transmission

Simon

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06-07-2009 11:11 PM  9 years agoPost 1151
Four Stroker

rrElite Veteran

Atlanta

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I think the assumption is that the "decoder chip" was a sloppy design and that the packet format has not changed at all. The question is what happens with a new HS receiver and old 12Z/14MZ with TM14.

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06-08-2009 04:28 AM  9 years agoPost 1152
Ace Dude

rrProfessor

USA

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That's what we all want to know.

  

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06-08-2009 07:13 AM  9 years agoPost 1153
tgo

rrApprentice

HK

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New 12ZHG ! is this true ?

TGO
John;

I may have to buy a new 12ZHG. It would be somthing like 4 times faster than my 12Z/TM14. Of course the new (non-Spektrum) JR's should be competitive.

John, I confuse myself. Is the speed increase all in the receiver ?

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06-08-2009 10:17 AM  9 years agoPost 1154
hootowl

rrProfessor

Garnet Valley, Pa.

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Maybe this is where that service port on the RX will come in handy. It would be cool if we can have our existing units reprogrammed if possible.

My Wife said she likes shopping at the Dollar Palace because it is convenient and casual. "I don't have to get all dressed up like I'm going to WalMart or something"

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06-14-2009 01:36 PM  9 years agoPost 1155
Four Stroker

rrElite Veteran

Atlanta

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There's no profit in that.

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06-26-2009 04:31 AM  9 years agoPost 1156
raptorapture

rrApprentice

Singapore

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9Z and new Futaba FASST receivers
Is there any chance of getting some stats or interpreting what they would be for a 9Z with the latest/best FASST module with the new receiver? From the info posted so far it seems like it might be faster than what was estimated earlier in this thread.

I've just switched continents and need to either switch frequencies, ie. to 72MHz or go to FASST or abandon my 9Z which I'm quite fond of. It seems that going 2.4GHz is the way to go but having some stats showing improved performance would help justify Futaba's profits

I'll donate [Edit: loan] 9Z for testing if you no longer have access to one but I do not have the FASST module.

Thanks, Geoff.

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06-26-2009 07:25 AM  9 years agoPost 1157
human213

rrVeteran

malibu

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Now
I am curious about the net latency figures for the fx40 with the
new receiver...

Damn tired of all these changes, rather than what should have
been the intiial performance of this unit...

I do not like weekly radio obsolescence.

m

Not everything that can be counted counts, and not everything that counts can be counted.

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06-29-2009 10:07 AM  9 years agoPost 1158
GimbalFan (RIP)

rrProfessor

Big Coppitt Key, FL

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I am curious about the net latency figures for the fx40 with the new receiver...
Aren't the FX40 and the 14MZ identical except for form factor?

op-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-t

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06-30-2009 06:28 AM  9 years agoPost 1159
human213

rrVeteran

malibu

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No, many differences..
Different software and addtional functions, stick switches, etc...
*

The transmitter features a slightly different design for pilots who prefer a “tray” type system.
*

The FX-40 allows modelers to re-locate the eight switches to different positions for comfort and convenience.
*

The World's smallest 14-channel synthesized receiver, with state-of-the-art Ball Grid Array (BGA) PC board technology.
*

The FX-40 system will control Airplanes, Helicopters and Gliders (Sailplanes).

Also has stick switches.

michael

Not everything that can be counted counts, and not everything that counts can be counted.

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06-30-2009 06:50 AM  9 years agoPost 1160
w.pasman

rrElite Veteran

Netherlands

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One thing they did is align the rx output frame rate with the tx's transmission frame rate. Why it wasn't like that on all the rxs to begin with is beyond me.
Synchronising them may be harder than you think, in the light of temporary signal losses. Probably it was just simpler to buffer the signals and have an independent thread clock out the signals at an independent rate?

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HomeRC & PowerAircraftHelicopterRadio - Servo - Gyro - Gov - Batt › TX/RX Latency Test Results
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