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@ -61,15 +61,16 @@ Transmitter|Firmware Options|Telemetry Enabled
Click on your transmitter above to view specific setup instructions.
<a name="Telemetry_Mod"></a>##Optional Telemetry mod for 9X/r TH9X transmitters
<a name="Telemetry_Mod"></a>
##Optional Telemetry mod for 9X/r TH9X transmitters
The telemetry mod for these transmitters has evolved. The original and popular "FrSky Telemetry Mod" requires 2 pins on the transmitter module board to be modified (RX on pin 5 and TX on pin 2). All the recent MPTM hardware options supports serial transmission on pin 1 (the same pin as the PPM signal) so, in this case, only the mod on pin 5 is required.
A good tutorial to follow is Oscar Liang's [here](http://blog.oscarliang.net/turnigy-9x-advance-mod/) but when you get to wiring up the Tx Module bay pins, you only need to perform the steps relevant for Pin 5.
You can see Midelic's original instructions [here](http://www.rcgroups.com/forums/showpost.php?p=28359305&postcount=2)
You can see Midelic's original instructions [here](http://www.rcgroups.com/forums/showpost.php?p=28359305&postcount=2)
Other Notes:
##Other Notes:
- er9X and erSky9X firmware already supports Multiprotocol Module as a standard feature. At time of writing it looks like that the next major release of OpenTx - OpenTx 2.2 - will have DIY Mulitprotocol support as a standard feature.
- Owners of Walkera Devo transmitters should look at the [Deviation-Tx](http://www.deviationtx.com) project for how to achieve the same end goal with your transmitters.