j_js1

Hi,
Is the built in receiver in the Draganflyer V Ti Pro compatible with both 35mhz and 72mhz freq band?? Thanks in advance

av8ersteve

My Feedback: (1)

No. If you want 35mhz, the receiver crystal on the board would have to be changed to a 35mhz crystal.

av8ersteve

My Feedback: (1)

oops... now that I read your ? more carefully, I'm not sure if the receiver will recognize 35mhz. Good question...

j_js1

hmm might have to ask the manufacturer, but i cant find there contact details on there site!

targit

Hi, no the reciever is not compatible, it needs modification to make it work at 35 (36?) Mhz. In Australia it's not compatible with the local frequency (36), but I have not modified mine yet, it seems as though adding a small external reciever unit and disabling the origional one would be easier than the tricky (and apparently not very satisfactory) conversion.

oops, just noticed you were talking about the Pro version, not sure if that uses an integrated reciever or not.

w00dst0ck

Technically ik should be possible to modify the reciever.
The reciever is a dual-conversion NBFM MC13135DW (see http://www.datasheetcatalog.com/data...C13135DW.shtml )


Assuming you already have a 35 Mhz Transmitter, there are only 4 components that need to be changed (possibly 3)

1: The quartz= frequency -10.7Mhz
2: condensators over/to the 2 coils on the bottom should be larger capacity by soldering extra capacitor parallel to them, this will shift the resonanse frequency downward.
3: longer Antenna
(4: maybe the coils need to be replaced, but most of them have a broad range depending on the capacitor and the core position)

I could not find the data on the coils used, other then they are probably mitshumi. so i can't give the values for the condensators.
Hope someone picks this up, i'll try and do some more research.