Try 2 22ohm resistors.in.serie.... 72 ohm is close to 75ohm
Op vr 9 jul. 2021 15:44 schreef Mikek <amdx@...>:
I recently started a thread about using the NanoVna on 75 ohm TV antennas.
I haven't found any success with a simple 50 ohm and 100 ohm resistor.
I Have tried just a connector adapter and a 50 to 75 ohm matching pad. I
go thru a calibration with a 75 ohm resistor, then install either a 50 ohm
load or a 100 ohm load.
Both measure about 30% low. What am I missing?
I know there is software to use with a laptop to display and manipulate
the results from the NanoVna.
Is there any software that will recalculate and adjust the data to a 75
ohm system? Or can the be made?
Mikek
P.S.
All the videos I watch about this always put a filter on the NanoVna so I
can't tell what it's doing. Is there a video where someone just puts on
resistive loads and shows the result?
