FF9 transmitter

[weasel]

i was out flying this afternoon, i flew two models, until i came to change to another plane, when i switched it on the servos went crazy, stotting about. i then changed the crystals. to no avail. went back to the other models and the same problem. knackerd set. has anyone else had the same trouble. and is ther a company that can repair and service the transmitter. regards weasel...

[Martin Harris - Moderator]

Could it have switched from PPM to PCM?  Have you had a mobile phone near it?  Maybe an urban legend but there seems to be some evidence that settings can be corrupted by a mobile ringing close to a tx.  Certainly supposed to have been proved on Multiplex gear.

 

Try reprogramming one of the models (on a spare model slot if possible) after doing a model reset in the parameters settings, check correct modulation is set (you then need to switch on and off if you've changed it) and see if that cures the problem.

 

Other easy thing to check is that the wire to the aerial hasn't come undone in the tx - remove the RF module and 4 screws from the back and carefully lift the back off to check - unless it's still under warranty when you should send it back to Ripmax (perhaps via your supplier).

 

 

[weasel]

good morning martin, thanks for that usefull information, i will give it a try, this afternoon, as i have left  transmitter in the hangar,  i will keep you posted on the progress thanks weasel...

[weasel]

the set is up and running, thanks to martins advice, when changing to another model, the transmitter,  went from ppm- to-pcm! i dont know how i managed to do that. maybe i was still under the influence, of  the beer venom..          thanks again weasel.....