On 6/12/23 12:38 PM, Mike Anderson/KF?AWL via groups.io wrote:
Of all the stupid things.
NONE of the videos showed calibration on the end of the feed. They all did it right at the side of the vna! I finally happened on a video that did it at the end of the coax n NOW its acting like it should ? FINALLY getting a swr i can figure out after chasing how many different ghosts ?
One thing to remember is that you can calibrate over a range like 50kHz-50 MHz. You can then sweep a smaller range and as long as what you "calibrated out" isn't too weird, it interpolates.
So you can cal to 50 MHz, then sweep 25-35, get the antenna close, then set for 28-30 and really zoom in.