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Hi all,

is there a method to set a marker to a specific frequency, by numerically entering the frequency? I searched through the menus and manual but could not find anything.

When operating with desktop VNAs I often set markers to specific frequencies, e.g. 2.4GHz, 2.45GHz, 2.485GHz to check the VSWR of an 2.4GHz antenna at the lower and upper bound and the center of the band, to quickly characterize the antenna over the whole band. By punching in the frequencies, the markers are quickly set. Using the rocker switch to set the markers on the NanoVNA takes a lot longer.

If this is currently not possible, this may be a useful future feature if others find it helpful too.

Thanks!

Am I missing something? This should be a common feature. I need the ability to dial in the exact freq of markers.

On Mon, Feb 3, 2025 at 01:39 PM, <mattscott2@...> wrote:

Am I missing something? This should be a common feature. I need the ability to
dial in the exact freq of markers.

There is no capability on the NanoVNA device itself to enter a marker frequency. It is easy to use the jog switch to set the marker frequency. It will quickly jump between frequency measurement points

On PC programs like NanoVNA app and Saver you can enter the marker frequency but it only goes to the nearest frequency where a measurement was made.

Roger

Set up your number of points and start/stop so that measurement points/markers coincide with your desired frequencies. Hint: numbers of points ending in "1" like 201, 401, tend to make the math work more easily.
Example: I work with SATCOM IFs so I set my analyzer to 141 points, start 850MHz, stop 2250MHz and the points are exactly 10 MHz apart.
I think that the interpolation math to give continuous markers as opposed to discrete readouts may be computationally intensive.
Best regards, Don Brant