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<<TableOfContents>>

= Graupner R16 Scan  - PPM Sum signal =

[[http://gallery.mikrokopter.de/main.php/v/tech/R16_Top.jpg.html|{{http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=88792}}]]


Link zum Hersteller [[https://shop.graupner.de/webuerp/servlet/AI?ARTN=7052|Graupner R16Scan]]

== Conversion to PPM sum signal ==

The channel 8 are beside the battery connection and is connecting with a 1kOhm resistor on pin 8 of the processor .<<BR>>
The needed PPM sum signal are diagonally opposite on pin 25. <<BR>>
{{http://www.u4u.de/Mikrokopter/R16ScanMOD1.JPG}}

So resolder the resistor and extend it. Now solder it on the pin 25. That's it.

{{http://www.u4u.de/Mikrokopter/R16ScanMOD2.JPG}}

The level is not perfect 5V, but it works perfect with the FlightCtrl.

Scale: 1V/cm 2ms/cm

{{http://www.mk.heissum.info/mk2u3/r16summeklein.JPG}}

PPM sum signal after resoldering the resistor:

[[http://gallery.mikrokopter.de/main.php/v/tech/SummenSignalR16scan.bmp.html|{{http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=24015}}]]

<<BR>><<BR>>
Über diesen Umbau hinaus schlägt DJCopter eine relativ einfache Modifikation vor, um das Signal noch "Konform" zu machen.
Siehe: http://forum.mikrokopter.de/topic-3686.html

= connection of the receiver cable =
Now you have the PPM sum signal on "connection 8". There you can connect the cable.<<BR>>
[[http://gallery.mikrokopter.de/main.php/v/tech/R16_Side_sumsignal.jpg.html|{{http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=88804}}]]
<<BR>><<BR>>

The receiver cable can be connected to the FlightCtrl as you can see below:<<BR>>
[[http://gallery.mikrokopter.de/main.php/v/tech/FC21_PPM_1.jpg.html|{{http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=62762}}]]

= how to connect the receiver with the transmitter: =
First, insert the desired crystal in the transmitter or set the channel on the transmitter.<<BR>>
Now switch on the transmitter, then supplied the receiver with power.<<BR>>
On the receiver then the (blue) LED lights.<<BR>><<BR>>

start the Scan mode of the receiver:
1. The transmitter should be on, the antenna complete open and lying near the receiver.<<BR>><<BR>>

2. With e.g. a pen push for about 3 seconds the "SCAN" button on the receiver until the (blue) LED goes out.<<BR>><<BR>>

3. Immediately if the (blue) LED is out, push the "SCAN" button again. Now the (blue) LED should be blinking rapidly.<<BR>>
The rapid flashing indicates the "scan" process.<<BR>>
When the transmitter (the frequency) is found, the LED will turn permanent. The channel is now stored in the receiver.<<BR>><<BR>>

Info: If the LED is still flashing slowly after a few seconds, the transmitter (the frequency) is not found.<<BR>>
Please check then the correct function of the transmitter (the crystal). If all is OK repeated step 1 to 3.

<<BR>><<BR>>


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