All Hitec receivers are center tuned and provided green tipped single conversion or blue tipped dual conversion Hitec crystals are used, as applicable, user can safely change crystals from top to bottom of each band - usual precautions apply so range test to ensure new crystal has not been dropped or otherwise damaged before or when inserting into receiver.
NB: Crystals are no longer interchangeable between brands, contrary to popular belief we do not recommend using another brand of crystal. They are totally different in cut, overtone value and a few other specs. e.g. Hitec DC RX crystals on 35.36 & 40MHz have a frequency 10.7MHz ABOVE the nominal frequency whereas Futaba DC RX crystals are 10.7MHz BELOW nominal frequency. Hitec FM TX xtals are cut at half nominal frequency whereas the Futaba FM TX xtals are cut at 1/3 nominal frequency.
Whilst you may get reasonable results in good conditions with Hitec xtals in Futaba RX, Hitec crystals must be used in Hitec RX for optimum results. Futaba single conversion RX crystals may appear to work but with proven less range and glitching, especially noticeable in damp weather or wet ground. Local radio technician was surprised but ran a number of tests with result he is also now convinced that there is a significant difference in the crystals as has also been confirmed by the local crystal manufacturer who supplies USA military and others requirements.
For further information, refer to the links provided under crystal compatibility between brands http://www.rcgroups.com/forums/showpost.php?p=8003791&postcount=3 and sub section "Glitches & Jitter in RX & Servo - causes and cures " in particular "Crystals - Swapping brands in RC Transmitters and Receivers." on my web page.
Alan's Hobby, Model & RC FAQ Web Links
face=Arial size=2>...</FONT></DIV><FONT face=Arial size=2>>I would like to
change my receiver crystal from channel 25 to channel 12. <BR>> It's a Hitech
receiver with a Futuba transmitter. Anyone see a problem with <BR>>
this?<BR>> <BR>> TIA,<BR>> <BR>> Don <BR>>