Eagle Tree OSD Pro User Manual

Page 14

http://www.eagletreesystems.com

Page 14

* A percentage display for each channel in the serial PPM stream detected by the OSD Pro.

6) Make sure your radio transmitter is turned on. Then, click the “Check this box to enable Serial PPM Mode” checkbox. Now, on the video screen (or
goggles), you should see the numbers corresponding to the "Ail" channel of the Servo Deflections display changing rapidly. If the number is not changing
rapidly, that means the serial PPM pulses from your Rx are not reaching the OSD - confirm that your radio transmitter is turned on, your receiver is powered,
and that the connections are correct.

7) Verify that the "Number of Channels Detected in Pulse Train” display at the bottom of the page correctly indicates the number of channels your receiver
supports. In other words, if you have an 8 channel receiver, the number displayed should be “8.”

8) Move the radio stick, switch, or knob corresponding to each of the OSD Pro inputs that you wish to configure, and determine which channel percentage
display changes the most with that movement. Then, select the channel that corresponds to the movement, for that input.

For example, if you move your radio’s throttle stick, and “Ch 3” shows lots of change in the percentage readout, that indicates that channel 3 of the serial
PPM stream controls the throttle. So, you would select “Channel 3” for the Throttle dropdown menu. Each OSD Pro input you plan to use needs to be
mapped to one of the serial PPM channels, using this method. NOTE: since moving a radio stick can cause slight movement of more than one channel,
make sure you select the channel that has the largest percentage change, during this step. NOTE: you can map the same channel to more than one input, if
your configuration requires it.

9) After you finish mapping all the OSD Pro inputs you intend to use, the servo deflections information on the video screen should show the correct
movements for each of the radio sticks you mapped, and stick menus should work as they did before you switched to serial PPM mode.

10) If everything works correctly, reconnect your servos. Be extremely cautious about reconnecting the motor, until you're convinced everything is working
reliably. It is highly recommended that you remove the propeller when first testing your motor with serial PPM.

11) Do thorough ground checks, making sure that all surfaces move correctly, and let the model sit for a while to make sure there are no glitches.

IMPORTANT: if you decide later to switch back to standard receiver connection mode, don’t forget to turn off Serial PPM mode on the page
shown in Figure 10, using the checkbox!