crankpin

My Feedback: (15)

I changed to the X9303 and the DX7 2.4 radio's some time ago. I gave away my 8103 complete set-up with a Sig LT-25, RTF to a guy and his kid, with the buddy box. He found one of my Phoenix' with a new Rossi in it, down by the water where gator's like to roam. Engine quit, no air speed to get it back.
Now I need a buddy box to teach someone to fly. Nothing on Horizon's site that is compatilbe with 2.4. Do I have to buy another 72 mhz radio and buddy box ?

Crank

s. wallace

My Feedback: (24)

I have a 9303 on 2.4 & used the std JR Sport S400 buddy box all summer training 5 students, must have been around 100 flights with zero issues...not sure why that item now says "not compatable" with Spektrum.

I would call Horizon & ask as that sure seems to be the only buddy box they list. It's 4 degrees in NY today so I'm not too concerned about flying anytime soon!

Ed Lyerly

Crank,
I know you can use 2 DX7's together (with one as a trainer box). I'm speculating that perhaps you can use a your 9303 and DX7 together the same way ?
Ed

crankpin

My Feedback: (15)

Lotus and Ed - Thanks very much. I will contact Horizon tomorrow. Horizon site with the DX-7 says, not compatible. I did not check the X9303 area. Good info, Happy Holiday's.

Crank

doxilia

My Feedback: (3)

Crank,

are you looking for an actual buddy box or just a cord? If the latter, JR's trainer system is simplicity itself. You just need the 2-pole cord that goes into the DSC port between any two JR/Spektrum TX's. The only concern I would have is with respect to the signal encoding between 72 and 2.4 systems. As far as I know, the digital encoding of the RF signal on the 2.4 DX7's is applied to a PPM stream. This same PPM stream should be understood by the DX7 via a 72 TX connected via trainer cord and passed on to the RF section of the DX7.

I'm speculating but I'll give it a try as I have both a JR 6 ch 72 system and a DX7. I believe that this system is what allowed Spektrum the versatility to offer RF modules that quickly convert a 72 radio into a 2.4 radio. I have a JR Century 7 (mid '80's) TX with all the analog switches and knobs. I stuck a Spektrum RF module into the back and guess what!? 2.4 modulation! BTW, the C7 is not on Spektrum's/JR's list of radio's that can be converted (it predates those by about 10 years!)

With respect to the X9303, I'm not so sure as I suspect that the encoding is digital all the way. Though perhaps the same circuitry is built into it for analog DSC/Trainer purposes with other JR 72 systems. If you have a cord, just plug it between your DX7 and the X9303 and let us know. Give the student the DX7 and you're set.

Just a couple of thoughts, David.

alcarafa

You can buy a training cord at horizon it comes with 2 jack plugs and 1 round to use with futaba radios.
You can connect dx7 to 9303 or viceversa , dx7 to dx7 or even to a futaba radio with round plug, been using it without any issues that way.

Hope this helps.
Rafa

crankpin

My Feedback: (15)

I wrote to Horizon about a Buddy Box with the 2.4 radio's. Fast response below.

Vince
================================================== ===============================


Thank you for your recent email. Any JR or SPM radio can be used with
the X9303 or FC7 as a trainer box. This includes the S400 trainer box
offered by JR. If you have any other questions, please let us know!

Thanks,
Matt Snyder
Senior Support Technician
Horizon Hobby Distributors

RCBruski65

My Feedback: (44)

I've used an old quattro with my X9303 and had no issues.

Tim

crankpin

My Feedback: (15)

Thanks for all the message's here. Bruski, I found an (old) new Quattro tx and charger at one of the LHS. I offered $40.00 and they took it. Programmed the DX7 to trainer, hooked up, works great.

Crank