FrSky 2.4GHz TELEMETRY Transmitter Module For JR (DJT)
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Product Review (submitted on August 26, 2013):
Bought this module to replace my stock FlySky 9x module. Was hoping to get more range and added failsafe. The 9x transmitter interface with the module has a plastic housing around the pins that interferes with the DJT module. What I did was to disassemble the DJT module and enlarge the opening around the pin sockets. Most people disassemble the transmitter itself and cut away the plastic housing. I think it was easier to work on the DJT module, plus it's less expensive to buy a new module if you make a mistake.
Binding to the new receivers (I also ordered V-series and a D-series receivers) went perfectly. Also set up failsafe, which works perfectly when you lose transmitter signal. With the D-series receivers, the telemetry feedback causes the DJT module to beep if the signal is weak. This also worked perfectly and offers a great peace of mind so you don't have to guess when your plane is getting too far away for a strong signal.
All in all, I'm very satisfied with the DJT module. Receivers are fairly cheap and the telemetry option is well worth the effort to upgrade to this module.