Originally Posted by ssturges
I am using an IFD540, Based on the comments I will look carefully to see if a cable or diplexer issues with the VNA. The cable did meter out with the DMM in the simple check.
I have the Avidyne in my RV-10 with the antenna underneath the tail on the bottom of the fuselage, and have never had any problems with blanking. As mentioned, check your splitter, as well as the coax connections. They can be the culprit as well.
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