Hello:

1110€ no is so expensive, I think, for a 12 channel radio, but for my it is too much for buy now. I need some items for finish my F-18 and Bobcat and a new mini Bandit EDF projet...

And now with my new Spektrum JR10X I can follow some years.

Regards and many thanks for yor answer.


Carlos.

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http://cmjets.blogspot.com/

Hi Kimmo

Thanks for the info, I was hoping that would be the case, the position of the aerial connection is not a problem as I modified my set up some time ago. I totally removed the SMA connector (hole plugged with a blanking plug) and I have the UFL / IPEX plugged directly into circuit board so I only have one RF lead which leads directly to the aerial. This mod was carried out on my MX22 and JR 9XII and both have worked faultless.

Regards

Alan

The Powerbox Royal with four built in 2.4 Rxs is another great idea from Emmerich and Richard.
You must run three Rx's but four is possible. The set up display screen allows you to look at fades and holds-so it has a built in Flight Log!
I've been using the Royal since middle of last year when I got some of the prototype units to go in my Comp ARF Pitts and a large 3m Raven 3W 170CD. it really is a versitile unit.

There was pictures of the Royal 2.4 unit in my Nurnberg thread.

Dave Wilshere

Alan,

If you haven't already seen it, have a look at the latest BMFA News (page 4) about modifying transmitters. I also converted my MX22 to an internal aerial when I fitted the Spektrum module, but according to Manny Williamson the BMFA insurance would not be valid and that would apply to club flying sites as well as JMA, or other organised events. I've now put my Tx back to standard with the vulnerable coax cable between the Spektrum module and the aerial - messy but legal[:@] The only way around this would be to have a modified Tx tested to see whether it complied with the relevant standards, but I know from experience that is expensive[&o]

It's a pity that Spektrum didn't make a Tx module like the Futaba one, with a built in aerial and no easy to damage exposed coax cable, but maybe they will?. Although they are making the 12 channel module for the MC24, they apparently do not have any plans at the moment to make a 12 channel module for the MX22 or MX24, according to Horizon in Germany.

Roger

Hi Roger

funny you should mention that, as I have just read that. I was taking BMFA news with me as i am flying to NY on Sunday for work and just happened to flick through quick before packing in luggage, meeting up with 'Dustflyer' and was going to show him our famous BMFA rag!

Ok i have undertaken many issues with CE markings on electronic equipment and if you modify equipment then the emphasis is on that person/company to ensure it complies etc. I kow what you say about testing and expense is true after spending ££££££££ to get Inverter drives CE marked.... Yes i know you have to submit a particular example for testing and final production versions cannot deviate from submitted version.

You could always achieve the same as a Futaba module ie having a built in aerial by simply screwing on a 2db aerial to the SMA connector on the back of the Spektrum module making sure you use a 'CE' marked aerial..

Also the work has to be done by a suitably qualified person in that particular field (which i am) The mod i have done is exactly the same that you would find in a 2.4Ghz JR 12 DSX, JR 9 DSX and Futaba 2.4Ghz... My Tx module PCB is no different in operation than the 'proper versions' and i use the same actual RF lead and SMA connector that comes fitted inside the module. I have had this mod done as soon as the modules hit the market and performance and reliabilty has been 100% flying prop, jet and helicopters.

They plug the aerial straight from the aerial to the PCB via a UFL / IPEX connector. Now electrically that way of 'doing the job' is correct with any high frequency you should always try and eliminate 'joins' and leakage/db loss will certainly be reduced when using a single RF lead and in my opinion they way Spektrum designed their 'quickfix' is appalling leading to possible cracks and breaks in the RF lead. I know that the mod i did is technically far superior than the Spektrum module with their outside RF lead and i challenge anyone to state that this is not the case. Take for example their quick mod when they realised that the Tx could fall over and hit the SMA connector, what did they do? They bolted a peice of flat steel on to the SMA connector to help it avoid being damaged.

Just remember that manufactures do not always get it right, also having seen some of the rubbish 2.4Ghz Tx's (not just RC) that the EU allows to be placed in our market.... i think you get the picture

This is not aimed at anyone in particular but what amuses me the most are the guys on these forums that comment on electronic issues when they have not got a clue what they are talking about...[sm=drowning.gif]

Personally i am more worried about the idiots that overfly the 'pit box' area...even after having it pointed out to them on several occasions [:@] plus Futaba 2.4Ghz Rx's that shut down once they need to throw the bed clothes off coz they are too warm!

Alan

Hello

Spektrum are making the module for the mc-24 which will use the 12 channels, but there doesnt seem to be a 12 channel module for the mx-22, JR 10x, etc. The mc-24 module could fit in these Tx if the antenna output was on the front like the DSM9 module. I wonder if they are planning this for the "near" future. I guess one would have to set the Tx to PPM24 for this.

Paul

Hi Paul

I guess that the MC24 module the actual PCB would look very much like the Spektrum version (ie in size) that I have in the MX22, I will now have to wait until someone who has the 12ch Tx module for the MC24 can give details of size of PCB and yes you would have to set PPM24

Alan

How is this system working at this time July 2012, anyone have good to say about this system?????