turnigy 9x receiver RSSI

Telemetry is the new "big thing" in RC systems. If you've got something to say or a question to ask, do it here.

turnigy 9x receiver RSSI

Postby francoishaha » Mon Apr 16, 2012 11:20 pm

Does anyone know how to get the RSSI signal from a turnigy 9X8C v2 transmitter?
User avatar
francoishaha
 
Posts: 63
Joined: Sun Oct 02, 2011 4:02 pm
Location: Quebec Canada

Re: turnigy 9x receiver RSSI

Postby RCModelReviews » Thu Apr 19, 2012 3:19 am

I doubt that you can. With most 2.4GHz receivers there is no RSSI voltage like there was with the old long-wire gear.

The RSSI value is stored as a numeric value in a register inside the processor and not as an analog voltage.

Even those receivers that do offer an RSSI output (like some of the FrSky ones), it is not a straight analog voltage but a series of pulses that are varied to produce an "average" level which reflects the RSSI value. You still have to use a resistor/capacitor network to smooth out (integrate) these pulses into a straight analog voltage.
RCModelReviews.com, just the facts.
User avatar
RCModelReviews
 
Posts: 2120
Joined: Tue May 04, 2010 3:40 am

Re: turnigy 9x receiver RSSI

Postby francoishaha » Fri Apr 20, 2012 12:04 am

Would it be safe enough to fly with the pulse RSSI average value (i mean safe by going around 75% of the range), or should i investigate to find out how to get the pulses into analog voltage?
User avatar
francoishaha
 
Posts: 63
Joined: Sun Oct 02, 2011 4:02 pm
Location: Quebec Canada

Re: turnigy 9x receiver RSSI

Postby Gabrias » Mon Jun 18, 2012 1:00 pm

I see this,

http://www.rcgroups.com/forums/showthread.php?t=1589154

I hope this can help!

Cheers!
Gabrias
 
Posts: 2
Joined: Thu Aug 19, 2010 10:10 pm

Re: turnigy 9x receiver RSSI

Postby BillGriffiths100 » Mon Jun 18, 2012 1:48 pm

According to the link in the previous post it looks as though it can be done but the results are extremely variable.
I would doubt if the signal they are extracting is meant for rssi.
Compromising with out of control government is like living with a lion, sooner or later the bloody thing will eat you .

You accept the tyranny of the state when it's not being applied to you, when it is: it's too late.
User avatar
BillGriffiths100
 
Posts: 553
Joined: Mon Sep 20, 2010 2:04 pm
Location: London UK

Re: turnigy 9x receiver RSSI

Postby francoishaha » Thu Jun 21, 2012 6:10 pm

I put the turnigy 9x receiver asside for FPV, not enough range but good enough for fly around. I now use FrSky receiver w/telemetry, it beep when rssi go down. I reach 2km without a beep with stock antenna... not bad at all.
User avatar
francoishaha
 
Posts: 63
Joined: Sun Oct 02, 2011 4:02 pm
Location: Quebec Canada

Re: turnigy 9x receiver RSSI

Postby pldb64 » Fri Jun 22, 2012 6:49 am

What sort of antenna set up have you used to achieve 2 Km? Standard omni? 5dB omni or patch?

Which FrSky Rx module
Turnigy 9x, FrSky 2-Way/Telemetry DHT DIY, Smartieparts BRD, ER9x FW
AXN-Floater (stock esc, motor & prop, HK orange 9g servos)
pldb64
 
Posts: 156
Joined: Fri Nov 04, 2011 3:09 am
Location: Sydney, australia

Re: turnigy 9x receiver RSSI

Postby pldb64 » Fri Jun 22, 2012 6:51 am

Doh! Missed the stock antenna reference - should read more carefully!
Turnigy 9x, FrSky 2-Way/Telemetry DHT DIY, Smartieparts BRD, ER9x FW
AXN-Floater (stock esc, motor & prop, HK orange 9g servos)
pldb64
 
Posts: 156
Joined: Fri Nov 04, 2011 3:09 am
Location: Sydney, australia

Re: turnigy 9x receiver RSSI

Postby francoishaha » Fri Jun 22, 2012 8:32 pm

pldb64 wrote:Doh! Missed the stock antenna reference - should read more carefully!


yep, i think it's 3dbi standard antenna, and the module i use is the DJT with v8fr receiver. I think the Dxxx receiver serie has the 2 way telemetry and if the rssi signal is low the module will beep.

http://www.hobbyking.com/hobbyking/store/__14349__FrSky_DJT_2_4Ghz_Combo_Pack_for_JR_w_Telemetry_Module_V8FR_II_RX.html
User avatar
francoishaha
 
Posts: 63
Joined: Sun Oct 02, 2011 4:02 pm
Location: Quebec Canada


Return to Telemetry

Who is online

Users browsing this forum: No registered users and 4 guests

cron