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Hi,

I want to share my Corona receiver modification for RSSI,
Corona procuding robus and long range receivers including DSP processor with zero glick.
All Corona Synthesized receivers using same radio chip and you can use this article for your one.

Materials;
- Corona RP6S1 receiver,
- 10 kilo ohm resistor,
- 3 pin header


Remove the shield


Find this jumpered chip. It's under the a white filter element on all corona receivers.


remove 2 pin from 3 pin header.


Use CA to paste it


Solder 10K ohm resistor between jumper and pin.




Cover the shield with tape.


Now it's ready for run.


I hope this article will help to you.

Thanks for reading
Melih

Why remove the two pins, and not provide at least a ground with RSSI ?
A condenser is also needed, at least at OSD side, the RSSI voltage is usualy pulsed.

wow thats great stuff!

Hey Melih!
Thanks for this How-To!
I want to buy an 8 channel corona receiver, there I can try this!

(11-09-2009 09:54 AM)RenatoA Wrote: [ -> ]Why remove the two pins, and not provide at least a ground with RSSI ?
A condenser is also needed, at least at OSD side, the RSSI voltage is usualy pulsed.

I removed the pins for decreasing wrong connection possibility.
1 wire is enough for my setup(and most of all) because OSD ground, battery ground and receiver ground on same level.

Corona RSSI output signal analog and linear, you dont need condansator for filtering.
I'm not suggest the condansator for this type receivers because OSD's RSSI input port is a ADC and have high impedance.
If you use a condansator, it will discharge over receiver side and receivers DSP cant read real RSSI value in some conditions.

It's not secure way because Corona using a DSP for all signall calculations and glick senses.

Hey Melih!

Nice how too!! Im wondering, please can you show us how you test with a multimeter to make sure its working correctly?

Like correct voltage?

Cant wait to try this soon!

Awesome! I was wondering if it would be easy to add the RSSI pin on the Corona's, since they are so tiny. Nice to know it's so easy!

Now I just need an OSD and I'll have a reason to mod mine... lol

(11-11-2009 09:22 AM)Keith Wrote: [ -> ]Awesome! I was wondering if it would be easy to add the RSSI pin on the Corona's, since they are so tiny. Nice to know it's so easy!

Now I just need an OSD and I'll have a reason to mod mine... lol

something about Futaba R149DP or Futaba R168DF ???

However I also have a corona sinth 8 ch ..

Hey Melih!

I´m using a Schulze 35MHz, that is a 8 channels receiver in my Twin-Star. Can I mod this receiver following your how to?
Thanks for info

Nope, Corona is an atypical case, most usual receivers are based on other 2 chips from Toshiba. You can find a lot of samples in this rcgroups thread:
http://www.rcgroups.com/forums/showthread.php?t=923419
I don't remember a Schulze though, but, if you can open it and make pictures, maybe we can help.