I have done some Measurements on my NanoVNA. Maybe the tolerances are higher at other NanoVNA but i am very surprised of my Results. Is there anyone out wo can confirm my work?
The Frequencies are compared with an Stabilock4040 and an R&S ZVH4 Antenna-Analzyer with Spectrum Option. The Reference came from an GPS disciplined 10MHz TCXO.
73s Holger, DF6DBF