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HelicopterRadio - JR DMSS › JR DSX9 expecting early Dec
11-26-2007 06:40 PM  9 years agoPost 1
heli3000

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Germany

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Hi everyone,
Looks like the new DSX9 is going to be out in Singapore in the first week of december (actually this year!!!).

http://shop.rotor.com.sg/show-detai...9-7E01B02894FF}
(980 Singapore$ is about 455 Euro )
I think they are going to sell alot of them with a releasedate just before Christmas.

I read somewhere that the radio also comes with the R921 receiver, could anyone confirm this?

Thanks

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11-26-2007 07:21 PM  9 years agoPost 2
9387ASH

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UK

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del'd

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11-26-2007 08:54 PM  9 years agoPost 3
Jonty

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Wellywood

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Yeah agree - what are the power outputs? Keen to know if this is UK importable (I suspect not)

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11-26-2007 09:30 PM  9 years agoPost 4
JEEPWORLD2002

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BLUEBELL PA USA

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whats really funny is they are still putting the little 4aa rx pack with them, when these rxs really need sufficent rx power

Trex600n Trex500 Mikado LoGo5003d// Hacker, CastleCreations,Ys 50, JR 7703d/8900, Radix

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11-26-2007 10:40 PM  9 years agoPost 5
9387ASH

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UK

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del'd

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11-26-2007 10:59 PM  9 years agoPost 6
Jonty

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Wellywood

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Cool - I have asked the store itself to confirm however I doubt they will much help.

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11-27-2007 07:39 AM  9 years agoPost 7
Phil.L

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Australia

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i got mine, few pics here

http://www.rotortips.net//index.php...&id=4&Itemid=52

http://www.rotortips.net/ <b> OutRage Batteries <b> G5

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11-27-2007 09:53 PM  9 years agoPost 8
9387ASH

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UK

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del'd

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11-29-2007 04:24 PM  9 years agoPost 9
Top End

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Darwin

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I think the balance of the TX is going to be up the creek.Will need of set clip eye.

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11-29-2007 04:55 PM  9 years agoPost 10
9387ASH

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UK

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del'd

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11-29-2007 07:13 PM  9 years agoPost 11
Hanson

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Poland SILESIA

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i know that the Australian version is the same as EU version..

but what are the power outputs in this radio from Singapore ? i`m looking for radio with full output power like in x9303 2,4 but with all digital trims like in PCM 9XII / DSX9 ?

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11-30-2007 08:53 AM  9 years agoPost 12
Top End

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Darwin

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Does any body know the power out put differance.If the CE is lower the LHS can have IT.I know its not to far away.( I WANT FULL POWER AT THAT FREQ) Were ever I live.

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11-30-2007 09:34 AM  9 years agoPost 13
9387ASH

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UK

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Chances are that the Ozzie version will be the same as the US version, its just us poor gits over here in Europe that get the low power versions.

My understanding is that the Oz Govt allows either FCC or CE approved devices. As there is only 1 accredited RF section at the moment (the US spec X9303 version) then the only RF section that has been fitted to the DSX9's for Oz will be the FCC accredited versions, ie "full power".

The European spec RF section hasn't got accreditation yet and probably wont for some time yet because of the delay in getting it tested.

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11-30-2007 10:24 AM  9 years agoPost 14
Climax

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West London, United Kingdom

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Hi Mac_Man,

What "RF spec" have you put in for testing? Is the same as per the UK DX7? Or have you not got that far yet?

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11-30-2007 12:44 PM  9 years agoPost 15
9387ASH

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UK

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JR are having it tested to EN300-328 v1.7.1 and also EN301-489 1 & 17.

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11-30-2007 01:42 PM  9 years agoPost 16
Climax

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West London, United Kingdom

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So has JR specifically supplied you with a "UK version" for testing? i.e. a DSX9 that they have adjusted to what they believe is the correct power setting, that you then have to get tested?

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11-30-2007 11:37 PM  9 years agoPost 17
9387ASH

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UK

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Not quite......

Horizon/Spektrum issue JR with the European version of the RF pcb. Don't forget that they are using a COTS solution with additional software. The US version has been tested at a test lab but the European reduced power version hasn't.

JR integrate the RF pcb's into the DSX9/X9303 and then ship them out to wherever. Before they can LEGALLY be placed on the market in the EU the whole system has to be tested to ensure compliance. JR are arranging this test phase, reason ? if anything fails, then JR are readily available to liaise with the test house and are able to reslove any particular issue. Otherwise, if we had it tested, then the set would need to be shipped back to us, then shipped on to JR for sorting out, shipped back to us and then shipped back to the test house.

Plus.... I have no techie data to pass on to the test house ( as they need a complete in depth technical construction file ).

The RF power level setting is set by Spektrum at the time of manufacture as per the Cypress power level command structure.

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12-01-2007 06:37 AM  9 years agoPost 18
Climax

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West London, United Kingdom

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So from what you are saying it seems to me that a UK spec DSX9 will probably be identical (in terms of its RF config) to a UK spec DX7, would you agree?

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12-01-2007 08:35 PM  9 years agoPost 19
9387ASH

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UK

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I would hazard a guess and say yes.

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12-01-2007 09:26 PM  9 years agoPost 20
pchristy

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Devon, England

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I'm not quite sure why everyone is so obsessed with the power level.

We are allowed 100mW in the UK, and that is *more* than enough!

Remember that it is exactly the same power level we are allowed on 35 and 459 MHz. The difference is that the receiver aerials are *much* more efficient at 459 MHz and at 2.4 GHz. The length of wire we use on 35 MHz is hopelessly lossy, and yet no-one ever complains of range issues on that frequency. So with a receiver aerial that is *substantially* superior, range should not be an issue on 2.4 GHz at 100mW.

Indeed, higher power levels can give rise to all sorts of other issues, most notably reduced battery life in the transmitter due to the higher power consumption, and also the possibility of swamping the front-end of other nearby receivers. Many of the older lags here will remember the days when carrying your model out through the pit area was fraught with difficulties, as it was not unusual for the throttle to open suddenly as you passed another Tx!

Admittedly that shouldn't happen with modern coded systems, but you could still suffer a momentary loss of signal due to swamping, and the current generation of spread spectrum receivers take longer to recover from a drop-out than ordinary receivers.

Power is NOT the be all and end all. As long as you have sufficient (and 100mW is plenty), then that's all you need!

--
Pete

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HelicopterRadio - JR DMSS › JR DSX9 expecting early Dec
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