bluesky123
Heliman
Location: Boulder, Colorado, US
| thrilsekr,
milehighwings.com sells simulator interfaces, not trainer cords! Simulator interface connects a transmitter to a computer (in order to let you control a simulator using your transmitter), while trainer cable (also called a "buddy cord") connects two transmitters and let two people, an instructor and a student, control the same helicopter in turns using two transmitters.
A simulator interface cable was a hard thing to do (I've reversed engineered the CCPM mix parameters and my colleague implemented the un-mixing in the firmware) as we had to extract the un-mixed channel signals out of the CCPM mixed stream. A trainer cord is a different story: when you use two identical Blade CP transmitters (or, for that matter, ESky 6ch or Twister CP TXs), you can send CCPM mixed signal from the student's TX to the instructors TX, which will transmit it without any problems. I believe I've seen a mention of this in ESky manual.
Is it possible to use Blade's TX with a transmitter of a different kind? May be... If I remember right, mu Futaba 9C has two ways of dealing with a slave transmitter, connected via a buddy cord:
1) 9C interprets the received PPM data stream and applies its own mixings on student's channel signals prior to transmitting them to the air. In this mode, 9C won't be able to works with Blade's TX, unless the buddy cord implements CCPM un-mixing (that would be one expensive buddy cord!).
2) 9C simply receives the slave's signal and immediately transmits it. Assuming that the PPM streams of Blade and Futaba are compatible (except for ever present CCPM mixing on Blade's side), this might well work. I should solder a simple miniDIN-to-Futaba mini cable and give it a try.
Boris |
