diff --git a/docs/Module_OrangeRx.md b/docs/Module_OrangeRx.md
index 2396815..6cdd2f0 100644
--- a/docs/Module_OrangeRx.md
+++ b/docs/Module_OrangeRx.md
@@ -1,3 +1,8 @@
 #OrangeRx Transmitter module
+
+The OrangeRx transmitter module uses an Atmel XMega MCU.  This requires a PDI programmer to flash firmware, the USBASP programmers do not work. 
+
+If you do not have access to a PDI programmer, Mike explains how you can setup your erSky9x board and program the Xmega through your Tx module port.  
+
 See the openrcforums page [here](http://openrcforums.com/forum/viewtopic.php?f=40&t=8753)