RunRyder RC
WATCH
 4 pages [ <<    <     1      2     ( 3 )     4     NEXT    >> ] 10823 views Post Reply
08-20-2008 04:45 AM  12 years ago
DJ_RPR

rrApprentice

Sydney, Australia

MyPosts All Forum Topic
not sure of the legalities of DSMJ, I dont plan on using FM again so dont want the MV. and when spending this kind of money, i dont want to think down the track i wish i sent it back and got the integrated one when i stare at the antenna hole.Create, Dont Duplicate Trex600N | Trex600CF | Trex450SEv2 | 3DMP| LeptonEX |Hirobo SuperCobra
SHARE  PM  EMAIL  Attn:RR  Quote
08-20-2008 05:54 AM  12 years ago
Helinutnz

rrElite Veteran

below 42 South

MyPosts All Forum Topic
I like the idea of frequency hopping with DSMJ,
Why?
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
08-20-2008 11:16 AM  12 years ago
DJ_RPR

rrApprentice

Sydney, Australia

MyPosts All Forum Topic
im happy, champrc are refunding for the radio. They are great to deal with and understand the communication break down. Now to find a USA 12X 2.4Ghz.Create, Dont Duplicate Trex600N | Trex600CF | Trex450SEv2 | 3DMP| LeptonEX |Hirobo SuperCobra
SHARE  PM  EMAIL  Attn:RR  Quote
08-21-2008 08:36 AM  12 years ago
Keithf

rrNovice

Sydney, Australia

MyPosts All Forum Topic
I like the idea of frequency hopping with DSMJ,
Why?
Well, I don't think there's much argument that 2.4 is a heavily trafficked, "dirty" band to be operating in. Where 2.4 devices use an appropriate FHSS or DSSS protocol that permits multiple sharing of the same frequency, then all's good. All devices should play together happily, regardless of whether they hop. However, when constant-transmission devises are operating, then that may effectively tie up a channel completely. I suspect thats what causes XPS to have its hopping problems - the channel becomes tied up and the RX can't communicate with the TX to initiate a hop. Back to DSM - it locks onto 2 discreet channels, which does offer a degree of redundancy. But surely hopping across many more channels will give a much higher level of redundancy, as many more channels could become fully utilised before losing your RF link. Of course there may be reaquisition delay issues, but only a minor issue compared with no data link at all.

I note that ACT's 2.4 system employs 2 contantly hopping signals - this would probably be better again. If only they did a module to suit the 12X (and were priced a little more reasonably) that would probably be high on my wish-list.
SHARE  PM  EMAIL  Attn:RR  Quote
08-21-2008 08:43 AM  12 years ago
Keithf

rrNovice

Sydney, Australia

MyPosts All Forum Topic
DJ_RPR not sure of the legalities of DSMJ, I dont plan on using FM again so dont want the MV. and when spending this kind of money, i dont want to think down the track i wish i sent it back and got the integrated one when i stare at the antenna hole.
Just bare in mind that if 900mhz, or some other band becomes THE ONE to use further down the track, then you'll be wishing you'd kept the MV version, so you could just change out the module.

I'm still flying with a JR PCM10 from 1990, and strongly believe in buying the best radio you can afford. That way, you don't outgrow its functionality, or need to replace it regularly. Using plug-in RF modules does keep things more flexible, if you do hang onto the radio long term. And yes, my PCM10 will be scoring a 2.4 module shortly. I'll squeeze a few more years out of it yet!
SHARE  PM  EMAIL  Attn:RR  Quote
08-21-2008 09:23 AM  12 years ago
Helinutnz

rrElite Veteran

below 42 South

MyPosts All Forum Topic
http://wireless.ittoolbox.com/pub/VK042601a.pdf

This is for data communications. Most guys come up with reasons that it means nothing but thats fine. Yes it's for comms but thats what we do with our radios. Make of it what you will.

you will get a nice dose of latency with a module in your 10X.
PM plantone to get the skinny on that.

The 12X has a 2.4 module in it and simply and aerial for 2.4 in it. So why cant a dedicated 2.4 system have a different DSSS module put in it with an aerial to suit? Dont think the MV would help any more here would it?
I'm still flying with a JR PCM10 from 1990, and strongly believe in buying the best radio you can afford. That way, you don't outgrow its functionality, or need to replace it regularly.
Yes good idea.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
08-21-2008 12:10 PM  12 years ago
DJ_RPR

rrApprentice

Sydney, Australia

MyPosts All Forum Topic
If 900 comes down the line ill have to buy a new radio then...hope its a while away i really dont like modules purely for the look. i know its sad but im a neat freak and cant stand looking at a hole where the antenna should be.Create, Dont Duplicate Trex600N | Trex600CF | Trex450SEv2 | 3DMP| LeptonEX |Hirobo SuperCobra
SHARE  PM  EMAIL  Attn:RR  Quote
08-21-2008 12:12 PM  12 years ago
Helinutnz

rrElite Veteran

below 42 South

MyPosts All Forum Topic
Neither do I. Just looking at a place where something is supposed to be and it's not would annoy me and I couldn't get my head around having the MV...esp seeing as I'd never probably use the 72/40 mhz.

Can't says I blame ya.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
08-22-2008 08:48 AM  12 years ago
Keithf

rrNovice

Sydney, Australia

MyPosts All Forum Topic
So why cant a dedicated 2.4 system have a different DSSS module put in it with an aerial to suit? Don't think the MV would help any more here would it?
Well, that's a happy thought. But are there any such replacement boards available now, to convert integrated TX's to 2.4? AFAIK, only plug-in modules are available as conversions. Can't see that changing anytime soon.

Thanks for the heads-up on the latency issue, I'll look into that.
SHARE  PM  EMAIL  Attn:RR  Quote
09-29-2008 09:13 PM  12 years ago
seattle_helo

rrKey Veteran

Seattle, WA USA

MyPosts All Forum Topic
So guys, just to clarify, the JR long red gimbal sticks do not work with the 12X, correct?

Has Horizon released other options for this yet to anyone's knowledge?
SHARE  PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
09-30-2008 05:31 AM  12 years ago
seattle_helo

rrKey Veteran

Seattle, WA USA

MyPosts All Forum Topic
Got some answers. Horizon has still not produced new sticks designed expressly for the 12X. Why they changed the size of the threaded gimbal shaft is beyond me but I consider it a significant mistake. In any case, they do not yet have a pending release date for any new 12X sticks at this time.

It turns out you can use the long red sticks with the 12X though. It's just a matter of removing about 1/8" of the bottom portion and then they will thread on enough to secure normally.
SHARE  PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
11-09-2008 11:11 AM  11 years ago
ikotikot

rrNovice

Philippines

MyPosts All Forum Topic
JR 12X Dedicated 2.4 Ghz Module Bay?
i still can see a module bay at the back of the 12x (JRP1200). i think it's important to have in case of any kind of update or anything jr can offer later, possibly through that module slot or through the trainer plug. are there connection terminals inside that module bay?
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
01-13-2009 03:46 AM  11 years ago
jimmyack

rrApprentice

Singapore

MyPosts All Forum Topic
Timer Issue
Hi Guys,
I just treated myself to a 12X and I only started fiddling around with it. I have an issue with the timer though. I set it to start at 20% throttle but once I move the stick back to full negative, the timer would stop. I know that I could set the timer to "Once Only" but what I am thinking is that I want the timer to start when I spool up and only go off when I land.

In between, when I am flying 3D, I do not want the timer to stop when I pull full negative. So, is the timer function set to the "Programmed Throttle" position or the Physical stick position? Or is there a way to do that?

On the same note, is there a 'Throttle cut' function for when I land my Nitro Heli? Help much appreciated.

Cheers
SHARE  PM  EMAIL  Attn:RR  Quote
01-13-2009 03:48 AM  11 years ago
THX1138

rrElite Veteran

Indianapolis, IN

MyPosts All Forum Topic
The timer can be programmed to throttle position or stick position. If you turn of the only once it will start then go till you tell it to stop or till the timer runs out.

Lou
Just give me five dudes and two flashbangs...
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
01-13-2009 04:28 AM  11 years ago
ikotikot

rrNovice

Philippines

MyPosts All Forum Topic
Timer
In between, when I am flying 3D, I do not want the timer to stop when I pull full negative. So, is the timer function set to the "Programmed Throttle" position or the Physical stick position? Or is there a way to do that?
Very good question. I'm also waiting for somebody to shed light on this.

My 12x is on the way and i've just gone through the manual/programming guides. came across this issue and the feature could be very useful.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
01-13-2009 07:31 AM  11 years ago
tauscnc

rrKey Veteran

Joliet IL

MyPosts All Forum Topic
I know that I could set the timer to "Once Only" but what I am thinking is that I want the timer to start when I spool up and only go off when I land.
How would the radio know you landed? Even if you come out of idle up 1 that does not mean you are landing... not sure how it would know. The way I see it is you would set it to turn on at say 20% throttle stick like you do and stay running...when it beeps you land.

???

taus
SHARE  PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
01-13-2009 07:49 AM  11 years ago
ikotikot

rrNovice

Philippines

MyPosts All Forum Topic
timer-stick position
Well if you're out of any idle up (perhaps you're in normal mode)and the throttle is below 20%, the radio should assume the heli's on the ground and the timer should stop.

while in any idle up mode, the timer should continue regardless of throttle stick position (positive/negative pitch).

does the 12x do this????????
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
01-13-2009 02:04 PM  11 years ago
jimmyack

rrApprentice

Singapore

MyPosts All Forum Topic
How does it know when I land, well 0% throttle might be a clue....

Ok, to be more precise, when in Idle up 1 or 2, my throttle are 85% flat and 100% flat so, when I go full negative, by right I am not below the 20% mark set for the timer. However, it seems that the timer is triggered by a position of the stick rather than throttle value.

So am I doing something wrong? Having the timer trigger only when throttle value is less than, say 20%, would be very useful. Then it would only time the Flight time rather. I believe the Futaba's work that way and I was hoping that the JR would be able to do so.

Has anyone done this on their 12X? Btw, the Radio is pretty neat so far, except for a few niggles. Just have to get more used to it I guess...
SHARE  PM  EMAIL  Attn:RR  Quote
01-13-2009 10:53 PM  11 years ago
tauscnc

rrKey Veteran

Joliet IL

MyPosts All Forum Topic
well 0% throttle might be a clue....
hehhee, that was funny. Ok, ok..

I will have to check mine but I do think it goes off the stick position...not the value of the amount set...

I will check mine when I get home.

taus
SHARE  PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
01-14-2009 07:18 AM  11 years ago
jimmyack

rrApprentice

Singapore

MyPosts All Forum Topic
From my trial and erroes, so far it seems that it memorises the stick position. Best compromise that I found was to put the trigger at 95%L when it triggers. So when I take off, it will start but it will also trigger momentarily when I get to full negative. That ought to screw my exact timing, but I'll try this first and see what gives.

What I find surprising is that JR did not seem to take that into consideration for the timer while I believe my Futaba 9CHP had it already 7 years ago. Huummm..

Anyone has a clue about throttle CUT for Nitro engines? (not the throttle Hold) My DSX9 could do it but can't seem to be part of the 12X.

So far, these are the gripes with the 12X and hopefully that will be all..
SHARE  PM  EMAIL  Attn:RR  Quote
WATCH
 4 pages [ <<    <     1      2     ( 3 )     4     NEXT    >> ] 10823 views Post Reply
Print TOPIC

 17  Topic Subscribe

Monday, September 28 - 1:17 pm - Copyright © 2000-2020 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online