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Old May 04, 2015, 02:49 PM
rogerc is offline
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Taranis RSSI readings

First time out with my new Taranis radio.
checked out the RSSI readings and they were on average between 60 and 65%. I am using a XR8 Rx/
I was flying about 300 feet up and about 400 out 90% of the time with my Bixler 2.
I thought these readings were quite low and will really hamper my range if this is any indication.
Since this was primarily a maiden flight on a rebuild I did not want to take it out any further to test range.

Is it a possibility that my 2 paddle antennas are not laid out correctly?
Any suggestions are greatly appreciated.

What are you other Taranis users getting for you % of RSSI readings?
Thanks
RC
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Old May 04, 2015, 03:05 PM
Jet_Flyer is offline
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Quote:
Originally Posted by rogerc View Post
First time out with my new Taranis radio.
checked out the RSSI readings and they were on average between 60 and 65%. I am using a XR8 Rx/
I was flying about 300 feet up and about 400 out 90% of the time with my Bixler 2.
I thought these readings were quite low and will really hamper my range if this is any indication.
Since this was primarily a maiden flight on a rebuild I did not want to take it out any further to test range.

Is it a possibility that my 2 paddle antennas are not laid out correctly?
Any suggestions are greatly appreciated.

What are you other Taranis users getting for you % of RSSI readings?
Thanks
RC
You will want to get them away from all the other wires that you have running around next to them. The vertical antenna looks like it is right next to wires and the horizontal is on top of wires.

Mike
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Old May 04, 2015, 08:53 PM
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Thanks for the info. Have moved them as much as possible still pretty close to everything. The leads on the antenna are not very long.

What are you other Taranis users getting for you % of RSSI readings?
Thanks
RC
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Old May 04, 2015, 11:01 PM
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The RSSI numbers are not percentages. They are just arbitrary numbers set up to give something near 100 for very close proximity. The change of numbers is not linear with distance.
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Old May 04, 2015, 11:34 PM
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Quote:
Originally Posted by rogerc View Post
Thanks for the info. Have moved them as much as possible still pretty close to everything. The leads on the antenna are not very long.

What are you other Taranis users getting for you % of RSSI readings?
Thanks
RC
I had my glider at 1500 ft and had readings of 50-60.

Tom
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Old Yesterday, 12:05 AM
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I swapped out the paddles for the wire whiskers, easier to mount.
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Old Yesterday, 07:19 AM
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Originally Posted by Econoline View Post
I swapped out the paddles for the wire whiskers, easier to mount.
I do the same on mine and it seems to work fine. There is an option to by the X series with the whisker antennas, but you have to take the paddle antennas off and snap on the include whisker antennas. So now I have lots of paddle antennas laying around.

Mike
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Old Yesterday, 09:06 AM
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Quote:
Originally Posted by Daedalus66 View Post
The RSSI numbers are not percentages. They are just arbitrary numbers set up to give something near 100 for very close proximity. The change of numbers is not linear with distance.
They are deciBells, and not quite arbitrary, even agree they are a bit hard to understand
60-65 is ok for visual range, i.e some hundred meters.
Every 6 dB less means you have doubles the distance, and first alarm is at 45 dB, so a 20dB margin is very comfortable.
Be also aware that having both receiver antenna under a 45 degrees angle related to Tx antenna means 3dB loss, and worse, if both are perpendicular on Tx antenna, means 26dB loss, i.e. 8x distance drop.
Ideal would be to have every moment of the flight at least one receiver antenna parallel and non-collinear with Tx antenna.
The worst is the collinear case, is total signal loss, black hole... for this reason, never aim/point to the plane with x antenna.
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