Transmitter Power DX7 Euro Version???

[Libelle]

Hallo,

the European DX7 version is limited to 100mW transmitting power and only for indoor flying :mad:

Any idea how to modify to get the 300mW of the US Version?
Is there a simple way like a potentiometer to change the transmitting power?

Hope some electronic freaks are out there!

Thanks
Libelle

[T5]

the European DX7 version is limited to 100mW transmitting power and only for indoor flying
Lower output than US, yes. Only for indoor, No. This is a full range transmitter adapted for European radio/frequenzy legislation go ahead and use it as far as your eyes can see.

[Libelle]

@ T5

...ther german manual and a German Graupner technician say "only for indoor use", max. range 100m!!!!!

What I know is the transmitting power of the US Version 3 times more than the German (European) Version!

So how do they limit the transmitting power?

Libelle

[T5]

This is wierd...the manual says so??? ...and you are talking about the DX7, not the DX6 right?
II read a test some swedish importer had made and range checked the DX7E to 950metres... which would be far enough.
...I have a US version so I can't make you any benchmarks myself, but I'm pretty sure the DX7E is good enough to fly anything up to a distance of a kilometre.
If in doubt, order one from US :o)

[BarnOwl]

Actually where does it say the U.S. version has 300 mW? I cannot find that info on the Spektrum website.

[flunk]

The 2712E version (mark the "E") has a lower output, due to different legislation. It is still however a full range system. There has been a lot of discussions in Sweden regarding this. There's an actual field test done by Procar Sweden.
The "E"-version DX7 has an maximum range of 950 meters.
The US version DX7 has a range of 1600+ meters.
The JR PCM9xII has a range of 1200 meters.

The reciever used was an AR7000.

[JKos]

Please see this thread for the answer straight from the horses mouth: http://www.runryder.com/helicopter/t364282p1/

- John

[Paul99]

According to users of one of the largest RC German forums (rcline.de) , the DX7 EU, which is distributed by Graupner, transmits at 10mw. Here's a biggish thread about discussion on the power limit (Need to know German):
http://www.rclineforum.de/forum/thread.php?threadid=155096&sid=2af12bb391a3c17d20251cbb14678f90&threadview=0&hilight=&hilightuser=&page=1
The thread at Runryder http://www.runryder.com/helicopter/t364282p1/ states 100mw which I find hard to believe as the legislation in Europe for DSSS is 10mw/MHZ .
Are there different EU versions of the EU DX7 or is it only Graupner's version?

[flyingeng]

Having an interest in this subject as I live overseas but will return to the uk. (I am looking at a Spektrum DX 7 but cannot get a European unit).

I have been conversing with Spektrum and it appears that the U.S. unit emits an "average" of 100mw. E.U. (bless em) require a "maximum" of 100mw. All other aspects of the units being the same.

There is a silver lining though as said through other threads on other sites the DX7 can be de-tuned by software and Horizon UK will do this at a very reasonable cost as they have told me.

[Paul99]

What is reasonable cost? I recall reading USD 100 somewhere.

I wonder whether they will include a proper Declaration of Conformity when returning the detuned radio? http://ec.europa.eu/enterprise/rtte/faq.htm#informing

[flyingeng]

Less than £20 they said. Regarding CE sticker shouldnt be a problem I would have thought as everything else is the same. Another way round it is to prove to your insurer that the TX conforms.