Measured 50 Ohm and 75 Ohm, the results were pleasing.
I'll tell you how-
The CH0 channel in Format is REAL and the CH1 channel is SMITH, the frequency is set to 50 kHz-10 MHz.
I connect the line to CH0 and at the end of the line I hook a variable carbon resistor with linearity A 470ohm. Slowly rotate the thread from maximum resistance until the Real line becomes perfectly flat. We look at the resistance readings - this is the resistance of the line. At 50 ohms, it practically lies on the center line, at the 75th it goes higher, just like in the Smith diagrams.
Meryl cables 75 and 50 ohm - an absolute coincidence in resistance.
On the screen, a piece of cable 1 meter of 75 ohm with two adapters of 50 ohms each showed a total resistance of 71.5 ohms.
Aleksander Shalygin
