Noob Question about Receivers and Crystals

[jjuneau]

Okay, here's my dillema:

I just bought a Futaba 6EAX "6 channeL" controller on the 72mhz band. I think i ordered it on channel 46 or something.

Anyway, I have two airplanes I just bought that I want to control with this new awesome controller.

The two planes are: Parkzone T-28 Trojan RTF and a Hobbic Piper Cub RTF

Of course, these two planes are on the 72mhz spectrum but on different "channels".

I was told I could just buy new crystals for these things to match the one in my futaba controller.. However, I was told their are two different brands of crystals..

Jr crystals and Berg ??? How do I know which crystal to buy for my planes? Also, if they sell crystals for my planes that DO NOT come in the channel I need them to be, do I have to then replace the airplanes receiver??

Also, if I have to replace any of the receivers with a Futaba one, do I have to reprogram them?


Okay, that was like 10 questions in one.. So please bare with me, I'm a noob!

[jjuneau]

I know someone has an answer out there!!! Plz help

[50%plane]

I don't think that JR recievers will work on a Futaba transmitter.(JR is positive shift and Futaba is negative) I believe Berg can go either way.


50%

[eblenkle]

	Quote: Originally Posted by jjuneau
	Okay, here's my dillema: I just bought a Futaba 6EAX "6 channeL" controller on the 72mhz band. I think i ordered it on channel 46 or something. Anyway, I have two airplanes I just bought that I want to control with this new awesome controller. The two planes are: Parkzone T-28 Trojan RTF and a Hobbic Piper Cub RTF Of course, these two planes are on the 72mhz spectrum but on different "channels". I was told I could just buy new crystals for these things to match the one in my futaba controller.. However, I was told their are two different brands of crystals.. Jr crystals and Berg ??? How do I know which crystal to buy for my planes? Also, if they sell crystals for my planes that DO NOT come in the channel I need them to be, do I have to then replace the airplanes receiver?? Also, if I have to replace any of the receivers with a Futaba one, do I have to reprogram them? Okay, that was like 10 questions in one.. So please bare with me, I'm a noob!

Hello Again JJuneau

Here are a couple of links to the source for your receivers. You can order your correct crystal from them, then the only question is are they Positive or Negative shift. I have not found any way to determine that.

http://www.towerhobbies.com/rtfplane...os/hcaa24.html
Hobbico Cub

http://www.redrockethobbies.com/Park..._p/pkz4351.htm
Park Zone T28

Good Luck
Ernie

[eblenkle]

If you look at the tech notes for the Hobbico Cub, they sell Crystals.

Contact Red Rocket Hobbies and ask if they can get a crystal for a RA672 receiver.

[BarracudaHockey]

A JR reciever (in north america) won't work with a Futaba transmitter unless its marked as "shift selectable" there is one or two that are, most aren't.

[jjuneau]

	Quote: Originally Posted by eblenkle
	Hello Again JJuneau Here are a couple of links to the source for your receivers. You can order your correct crystal from them, then the only question is are they Positive or Negative shift. I have not found any way to determine that. http://www.towerhobbies.com/rtfplane...os/hcaa24.html Hobbico Cub http://www.redrockethobbies.com/Park..._p/pkz4351.htm Park Zone T28 Good Luck Ernie

Thank you for the feedback.. guess my last question is.. are their any cheap, reliable receivers out there that are Futaba knock-offs?

It sounds like my parkzone plane will need a new receiver that will support a "high band" crystal.. Does Hitec make good reliable stuff? Futaba is just too pricey for me...

[eblenkle]

Good Morning JJuneau

I really like the Hitec Receivers, for planes like you're using I use the Hitec Micro 05S which is inexpensive full range light and you can use two channels for ailerons as opposed to splitting one channel. This is a single conversion, Full Range and auto shift (it can be used with either positve or negative shift)

http://www.hitecrcd.com/receivers/show?name=Micro+05S

Here is the link to the specs.

PS. Shop around, you can find these for $20.00 if you look around!

Best Regards
Ernie