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  #1  
Old 09-08-2022, 09:43 AM
CATPart CATPart is offline
 
Join Date: Jan 2012
Location: up up and away
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Default Tailbeaconx EXP wiring - white wire?

Those of you with an EXP Tailbeaconx, did it come with the white wire?

I picked up a tailbeaconx EXP from spruce. It has 5 wires including the white "suppression" wire that the TSO version has.

The EXP manual does not mention the white wire, so I assume it is not supposed to be there on my EXP version.

I messaged uavionix about it and they responded to simply follow the TSO manual. This is fine, no problem, I will ground the white wire.

I wonder if they ran out of exp versions and started slapping the exp label on their tso versions? They did not offer any explanation, but maybe they will get around to it.
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  #2  
Old 09-08-2022, 10:47 AM
ryankhallcpa@yahoo.com ryankhallcpa@yahoo.com is offline
 
Join Date: Jan 2018
Location: Taylor, AZ
Posts: 122
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I installed the TailbeaconX EXP and cannot remember if there was a white wire. I grabbed my User and Installation guide to see what it shows and I can see that it shows GY, OR, RD, BK. I'm pretty sure that if my unit had an unexplained white wire that wasn't addressed in the Install guide I probably would have been likewise confused.

Anyhow, I'm not yet flying but I know the unit is functioning along with the AV-20S Control head I installed.

Not sure this helps much.

Ryan
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  #3  
Old 09-08-2022, 02:37 PM
Ralph Inkster Ralph Inkster is offline
 
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Location: Calgary, Alberta
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Default

My Exp TailbeaconX also has a white wire. I plan to ignore it per the Exp manual as it is listed in the Certified manual as optional. So grounding or not is your choice.

excerpt from TailbeaconX certified manual
". Prepare the aircraft wiring for connection.
a. Install a shielded 24AWG twisted pair cable from the cockpit to
the tailBeaconX installation location. This cable is used for
interface control (data). Installations requiring suppression input
UAV-1004270-001 27
Rev B
should install 3 conductor twisted pair cable. Installations not
requiring suppression input require only 2 conductors.
"
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Last edited by Ralph Inkster : 09-08-2022 at 02:56 PM.
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  #4  
Old 09-08-2022, 03:00 PM
CATPart CATPart is offline
 
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Ralph the TSO manual says

"....The suppression input must be driven to an input
voltage of at least 10 VDC. The input must be connected to ground when
not in use.
"
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  #5  
Old 09-08-2022, 05:56 PM
Ralph Inkster Ralph Inkster is offline
 
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Location: Calgary, Alberta
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Maybe ask your local avionics tech what is a suppression circuit in a TSO'd transponder situation iis & would it be needed in an experimental.
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  #6  
Old 09-08-2022, 08:25 PM
CATPart CATPart is offline
 
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yea he will probably say to do what the manual says, lol.
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  #7  
Old 09-08-2022, 10:16 PM
Stewbronco Stewbronco is offline
 
Join Date: Sep 2019
Location: Langley BC
Posts: 320
Default DME SUPPRESSION

My avionics guru ….says for DME SUPPRESSION….I do not have DME ,so not needed ….but like the man said ,follow the manual …my legal guru said that
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  #8  
Old 09-09-2022, 08:31 AM
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Snowflake Snowflake is offline
 
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I tied my suppression wire to ground right at the unit.
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  #9  
Old 09-09-2022, 11:24 AM
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vlittle vlittle is offline
 
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Location: Victoria, Canada
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I confirm what Rob has posted. He has flight tested his tailBeaconX with a huVVer-AVI-TBX control head, and I have bench tested it with my tailBeaconX.

Vern
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