Bits needed to connect to FLARM Mouse?

[JCurtis]

Thanks Jeremy, I sort of suspected that would be the case, but not in detail.

I am considering a BEC from R/C  models. As they are used to feed radio kit, I would have thought they are cleaner RF wise?

This size would fit T67Ms requirement. http://www.ebay.co.uk/itm/3a-UBEC-Max-5a-Universal-Battery-Eliminator-Circuit-5v-or-6v-option-6-6v-28v-/330912763478?_trksid=p2141725.m3641.l6368

Might work OK, be interesting to know what input protection it has, if any.  A battery supply is nice and clean in comparison to what is generally found.  For safety's sake I'd put an inline fuse on it just in case as you're going to be using it for extended periods.  Given the mouse only draws 50ma it kind of depends on how it handles running a such a light load given it's higher rating.  Can only find that out by giving it a try.

RC kit these days is up around 2.4GHz and spread spectrum so well outside GA frequencies, it can take some quite some abuse.

[T67M]

I did consider a simple resistive divider, but without measuring a Mouse, I don't know how large the current peak is during the transmit phase, and making a stiff enough divider could be tricky unless it runs quite hot. The 3-terminal regulator using (for example) a 7809 is probably the best solution all round.

[Wadoadi]

I recently used one of the CPT regulators mentioned earlier in this thread but it bled all over our radio!
see attached.


in the end i got one of these it is running cold under light load and not detectable RF
http://www.ebay.co.uk/itm/351259407149?_trksid=p2057872.m2749.l2649&var=620423764283&ssPageName=STRK%3AMEBIDX%3AIT

[Paul_Sengupta]

That's good to know, thanks, but wasn't what was needed a 24V to 12V converter?