Les Littleton Posted April 22, 2008 Share Posted April 22, 2008 Can anyone tell me if you can use a futaba tx with a different rx ( sanwa ) or is this not possible. I also have a sanwa tx but i dont think its possible to buddy this up with a futaba . i would need to use the sanwa as the slave in this pairing. Quote Link to comment Share on other sites More sharing options...
Former Member Posted April 22, 2008 Share Posted April 22, 2008 [This posting has been removed] Quote Link to comment Share on other sites More sharing options...
Tim Mackey Posted April 22, 2008 Share Posted April 22, 2008 regular ppm stuff is pretty well interchangeable, but PCM receivers will only work with their matching tr. Quote Link to comment Share on other sites More sharing options...
Kevin Fairgrieve Posted May 5, 2008 Share Posted May 5, 2008 Further to this..I am thinking of changing my TX to a Futaba one. Currently have a Sanwa RD6000 Super.Which brand of XTAL would I need in my Sanwa recievers? Sanwa or Futaba... Quote Link to comment Share on other sites More sharing options...
Tim Mackey Posted May 5, 2008 Share Posted May 5, 2008 Sanwa. Generally speaking, always fit the receiver manufacturer crystal in the receiver, ( although some like schulze and few others ) use a thrird party crystal. Quote Link to comment Share on other sites More sharing options...
David Ashby - Moderator Posted May 6, 2008 Share Posted May 6, 2008 Yup go for Futaba crystals and you should be fine Kevin., Quote Link to comment Share on other sites More sharing options...
Tim Mackey Posted May 6, 2008 Share Posted May 6, 2008 I am unsure whether we are at cross purposes here? Are you suggesting he fits a futaba crystal into his sanwa receiver in preference to a sanwa cystal? If so why ? I have always believed that if a manufacturer supplies a dedicated receiver crystal for his receivers then that is the one to use.This appears to be backed by this article here too. Quote Link to comment Share on other sites More sharing options...
David Ashby - Moderator Posted May 6, 2008 Share Posted May 6, 2008 Er....don't know TIm, must have mis-read your post - it's something folks have always told me to do that hasn't let me down when using .............I'll er.....head for the door Quote Link to comment Share on other sites More sharing options...
Tim Mackey Posted May 6, 2008 Share Posted May 6, 2008 nah, if it works I guess its fine, but I always feel happier using the dedicted crystal in my....hey wait...I dont know what I am talking about either....crystals.....what are those anyway?......frequency control ? - how quaint! Quote Link to comment Share on other sites More sharing options...
Kevin Fairgrieve Posted May 6, 2008 Share Posted May 6, 2008 LOLSeems to be a can of worms....Maybe I might just stick to the Sanwa TX. but then if I got a Futaba RX!!!!!!!! Quote Link to comment Share on other sites More sharing options...
Former Member Posted May 6, 2008 Share Posted May 6, 2008 [This posting has been removed] Quote Link to comment Share on other sites More sharing options...
Les Littleton Posted May 11, 2008 Author Share Posted May 11, 2008 Seconds out ,end of round one. Thanks to all who have joined in this debate, its been both informative and confusing to me. Am i any wiser ? i think so , but it looks like i may have opened that can of worms mentioned by kevin ..oops. Now where did i put that article on free flight,and my bag of rubber bands . Quote Link to comment Share on other sites More sharing options...
Former Member Posted May 11, 2008 Share Posted May 11, 2008 [This posting has been removed] Quote Link to comment Share on other sites More sharing options...
Howard Tomlin Posted May 27, 2008 Share Posted May 27, 2008 always the same brand as the unit the crystal is going into. Quote Link to comment Share on other sites More sharing options...
gangster Posted September 3, 2008 Share Posted September 3, 2008 I definitely agree with Howard there. The crystal determines the frequency and nothing else. Slight differences in circuitry could cause a foriegn crystal to cause the unit to be off frequency a little bit. This may not show up on a range test but lets assume that the rx frequency was a little bit low and it encountered a transmitter on the ajacent channel that was a little bit high, and it does happen, there could be isues there.In the case Les quoted the TX needs a Futaba crystal and the RX a Sanwa Quote Link to comment Share on other sites More sharing options...
inspector9566 Posted September 4, 2008 Share Posted September 4, 2008 the only crystal i use and swear by is the one that holds my red wine and yes if you have enough of them everything gets as confusing as this thread sorry not much help!!! Quote Link to comment Share on other sites More sharing options...
Guest Posted September 4, 2008 Share Posted September 4, 2008 my understanding is - for receivers -dont put JR crystals in anybody elses Rx and vice versa as JR operate a different IF ( intermediate frequency ) and therefore are not compatable with other crystals. As far as I know JR are the only exception ( just as they are the only ones to have the Tx charging plug connections reversed ) and this would suggest that Rx crystals are interchangeable between the other makes.dont mix crystals for single and dual IF Rx's even on the same make,I have been using hitec and futaba crystals in both hitec, futaba and some other makes and have no problems. As has been suggested above - suck it and see - preferably on the ground and with other Tx's switched on on adjacent channels ( above and below ) for safety check. Somewhere in my workshop, i have a note on this for both Rx's and Tx's which I will try and find as -if memory serves, there are also differences in the way crystals are used - using lower frequency crystals and tuning the Tx in on the harmonics to achieve 35 megs.perhaps someone more au fait with radio / RC equipment could elaborate Quote Link to comment Share on other sites More sharing options...
Howard Tomlin Posted September 4, 2008 Share Posted September 4, 2008 its still safer to use the correct manufacturers crystal regardless. Frequency crystals are not something that anyone should be taking a chance with - too much to lose if it doesnt work and the only time you'll find out is when your radio stops working in the air. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.