Avionics FAQs

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Avionics FAQ

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When I powered up my new TT21 transponder for the first time, I received the message "No remote link", then the unit went directly into "setup/test mode". Is this normal?

This is completely normal. The TT21, like most avionics units, needs to be setup and configured upon first use. The pilot’s guide and installation manual provided with the unit provides complete information for the setup and configuration process.

When I powered up my new TT21 transponder for the first time, I received the message &quot;No remote link&quot;, then the unit went directly into &quot;setup/test mode&quot;. Is this normal?

When I powered up my new TT21 transponder for the first time, I received the message "No remote link", then the unit went directly into "setup/test mode". Is this normal?