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PK's Z3

Started by pk-surfing, October 27, 2014, 09:43:54 PM

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pk-surfing

Quote from: Billy_boy_2010 on October 30, 2014, 10:55:55 PM
Looks fantastic.

Out of interest- why haven't you chosen a greater distance between the Rx and video Tx.

Too tricky with the removable wings?
Close range plane only?

I had originally intended to put the Vtx far out on the outer wing but I've used my UHF gear for about 3 years now and (touch wood) it's never given any problems on planes and multis using 1.2, 2.4 and 5.8 vtx's so with this plane having detachable outer wing panels I decided to see how it goes.

The receiver is a UHF Scherrer on 433 and the Vtx is on the 2.4 band so this choice of frequency will play ok with each other as harmonics (from the 2.4 vtx) only go up the frequency scale as multiples not dividing down.

There is a chance of the 2.4 vtx simply overloading the preamp section of the 433 receiver however I'm using the latest Scherrer receiver and it is recognised as having a very well designed input stage, bench testing of this receiver with the vtx right next to it didn't cause any glitching with servos connected.

The separation between the receiver and the vtx antenna is 250mm at the moment, the intention is to see how it performs as existing then if any problems I'll move the vtx onto the outer wing and use one of the Emcotec multi cable connectors I got for this build.

PK  :)
Today I broke my personal record for most consecutive days lived