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Just try it, normally it should work.

Hello from Greece!!!!
I just built the rssi osd buffer and tryed on an 430mhz RMILEC LRS system nοthing happend
I saw in a video (http://vimeo.com/7582048) that an rssi buffer is for normal receivers and for LRS systems receivers, but the soldering is on different input, input 1 for normal receivers, input 2 for 430MHZ and LRS systems. Inside the eagle tree osd pro manual suggest this rssi buffer for the long range systems http://www.dpcav.com/xcart/product.php?p...t=0&page=1
Any suggestion please?

Can some please validate this finding for me please? This appears to be the RSSI Pin in the FlySky 6 channel RX.

Here is the Datasheet for the A7105 Chip.


It appears to me, they are sending the output directly to ground via the resistor. So what I MAY need to do is cut the trace and use a RSSI Buffer?

Edit: the named Resistor is actually a Cap.

(01-22-2010 12:29 AM)BlueAngel Wrote: [ -> ]Hi,

for those who don't want to buy a 20$ RSSI Buffer from DPCAV, here is a short how to build:

1. Why?
Because when you hook up the RSSI Output of the receiver direct to an OSD, some current is drawn from the receiver. In a few cases the voltage breaks down and can cause range problems.
So, here comes the buffer. It will copy the RSSI voltage and supplies enough current for the OSDs to measure the RSSI voltage.
No more problems.

The material costs are around 1-2 USD.
You will need an Operational Amplifier and some servo cable and a Toroid Ferrite Core.

For the OP you will need a LM358.
We need to build an Voltage follower

Its very easy to build this one.
I used a 2mm gold connector to connect the rssi buffer to the rssi output of my Futaba R1410DP.
Look at the photos, how i solder it together.
Quite easy.
5g with all connectors ready to use.
Works perfect.

Feel free to ask.

Hi, I'm not sure if "Out 1" and "1-" are connected in the picture???
Do I need to connect "Out 1" and "1-" ???
And please, can I use this buffer for Chainlink Dare and Eagle Tree OSD Pro???

Thanks!!!