New JR 11X ZERO - Page 54 - RC Groups
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Oct 20, 2012, 03:26 PM
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bjornthans's Avatar
hello. is it possible to use all the 11 channels on the 11x like for my 12 ch. uhf receiver.?? just got my 11x zero because it was 11 channels. and now i onley got 1 more then my XG8. this really sucks if im stuck with only 9 :-(
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Oct 20, 2012, 07:54 PM
NaN
Andy2No's Avatar
Only as outputs from mixers, AFAIK.
Oct 20, 2012, 08:28 PM
Registered User
Quote:
Originally Posted by bjornthans
hello. is it possible to use all the 11 channels on the 11x like for my 12 ch. uhf receiver.?? just got my 11x zero because it was 11 channels. and now i onley got 1 more then my XG8. this really sucks if im stuck with only 9 :-(
Unless you are using DSM(11ch) or PCM(10ch), you are stuck at 9 channels.
Oct 21, 2012, 08:45 AM
Registered User
bjornthans's Avatar
Quote:
Originally Posted by Andy2No
Only as outputs from mixers, AFAIK.
hi
can you please tell more ? it sucks that i used so much money on only 1 channel more but thats life. i can use my uhf reapeter http://fpvlongrange.com/fpv-repeater-system/ to get all 11 channels inn use :-)
Nov 13, 2012, 08:35 PM
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RC Erik's Avatar
Isnt that true with the Spektrum DX18? It doesnt have enough toggle's to allow 18 different channels but you can do a mix for the channels and obtain 18. I think that is correct?
Nov 14, 2012, 10:45 AM
Multi-Platform Pilot
barracudahockey's Avatar
Probably. I think the idea of 18 channels is more about having precise control of multiple elevator, aileron, flap servos etc than being able to control 18 individual channels.
Nov 14, 2012, 12:44 PM
Registered User
Quote:
Originally Posted by bjornthans
hello. is it possible to use all the 11 channels on the 11x like for my 12 ch. uhf receiver.?? just got my 11x zero because it was 11 channels. and now i onley got 1 more then my XG8. this really sucks if im stuck with only 9 :-(
That the 11XZero supports nine PPM channels is surprising to me. My 12XMV, which I believe is the same as the PCM12X, only supports eight PPM channels. According to the JR Propo (Japan) web site, the most channels JR FM receivers have are seven. To get more, one has to use either a SPCM or APCM receiver.

Allan
Nov 14, 2012, 09:15 PM
Registered User
bjornthans's Avatar
you an choose ppm8 or ppm9, dmss, spcm and dsm in the modulation menu.

what is spcm and where is it used?

Quote:
Originally Posted by AWorrest
That the 11XZero supports nine PPM channels is surprising to me. My 12XMV, which I believe is the same as the PCM12X, only supports eight PPM channels. According to the JR Propo (Japan) web site, the most channels JR FM receivers have are seven. To get more, one has to use either a SPCM or APCM receiver.

Allan
Feb 12, 2013, 02:13 PM
Newbie,3D Wannabe :)
nice feature of 11x Zero Japanese Market radio is that you can run DMSS and DSM2/X And 72Mghz By Simply Switching Modules since its module based but i dont think you will get support from horizon in US for that Model
Mar 29, 2013, 03:17 AM
Registered User
will a FrSky DJT telemetry module fit the 11xzero?
Mar 29, 2013, 05:14 AM
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bjornthans's Avatar
Quote:
Originally Posted by Wilron
will a FrSky DJT telemetry module fit the 11xzero?
Yup, I use frsky on mine.
Mar 29, 2013, 07:31 AM
daedalusrobert's Avatar
Quote:
Originally Posted by bjornthans
Yup, I use frsky on mine.
What receiver are you using?
Apr 01, 2013, 10:41 AM
Registered User
bjornthans's Avatar
Quote:
Originally Posted by daedalusrobert
What receiver are you using?
v8-hv, d8r-xp,d8r-II plus and the small 4 channel.
Apr 01, 2013, 01:01 PM
daedalusrobert's Avatar
Thanks!
Apr 01, 2013, 06:32 PM
Registered User
Bjorn,

JR's modulation started off with PPM, then PCM (Z) which is an encoded 9 bit system giving 512 discrete steps. They then switched to SPCM which is 10 bit giving 1024 discrete steps. Problem is that in order to get this data in the correct time frame they alternate channels 9 & 10 each frame. ie they send out channels 1,2,3,4,5,6,7,8,9 then 1,2,3,4,5,6,7,8,10.

For the 12X they introduced APCM to get the 12 channel data out. This is not compatible with any other receiver that JR used.

A 10X transmitter using SPCM could use any SPCM receiver, a PCM9X transmitter could use up to the 10 channel receiver but obviously the 10th channel would be inoperative.


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