'Widget' Posted October 25, 2009 Share Posted October 25, 2009 Hi, Can anyone tell me why we have a choice of dual & single conversion receivers, which is best and is single okay for general i.c power use. Cheers Quote Link to comment Share on other sites More sharing options...
Bruce Richards Posted October 25, 2009 Share Posted October 25, 2009 Dual conversion should offer better interference rejection. But I have heard it said that they are more susceptible to electrical interference in high power electric models. I have many single conversion Rxs and they have all been fine but it depends on the interference where you fly. Quote Link to comment Share on other sites More sharing options...
Andy Gates Posted October 25, 2009 Share Posted October 25, 2009 I too use both single and dual conversion recievers on my fleet which is predominantly electric. For my larger electrics (72" + wingspan) I use dual conversion and I have never suffered any interferance (except when I used a single conversion crystal - dumb or what?). Whatever you use, a full reception and range check is required both dead engine and running. Quote Link to comment Share on other sites More sharing options...
Frank Skilbeck Posted October 25, 2009 Share Posted October 25, 2009 If you are using PPM (i.e. not PCM) Rx's then the ones with Intelligent Pulse Decoding, which is a sort of error checking, complete with a failsafe are pretty good. Quote Link to comment Share on other sites More sharing options...
'Widget' Posted October 29, 2009 Author Share Posted October 29, 2009 Thanks guys, one other question, can you use a dual conversion Xtal in the Tx whilst using a single conversion in the Rx, obviously with the same channel number ? Cheers Quote Link to comment Share on other sites More sharing options...
Klippy Posted October 29, 2009 Share Posted October 29, 2009 The answer there has got to be yes, Quote Link to comment Share on other sites More sharing options...
Andy Gates Posted October 29, 2009 Share Posted October 29, 2009 Oh dear! Widget. The transmitter crystal does not change between single and dual conversion. It is the reciever one that changes, a single conversion crystal goes in a single conversion reciever and a dual conversion crystal goes in a dual conversion reciever. Any change to the above is likely to affect the range of reception of the reciever, I know I have done it - not a good move. The crystals can be identified by different coloured tabs on the labels.Edited By Andy Gates on 29/10/2009 18:12:51 Quote Link to comment Share on other sites More sharing options...
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