NanoVNA V2 / Forum

Note: this page is a mirror of https://groups.io/g/NanoVNAV2.
Click here to join and see most recent posts.

Relationship between step resolution and sweep range?


TomS 2021/08/01 12:35

Hello,
according to the specs should be the lowest frequency step 10KHz.
If I set:
Num sweep points  = 201
Start  435MHz
Stop. 436MHz

Displayed freq step  5KHz from data point to data point.
Conclution: Minimun frequency step is less than 10khz or the start stop range is in reallity differen than displayed or the real data points are different than showen on screen . Finally the diplayed values for each second datapoint (eg 435,005MHz) is interpolated.
Are there any ideas what the nanovna v2 p4 is doing in this case?
FW git-20210225-ebc366e

Greetings TomS

DiSlord 2021/08/01 14:09

Min frequency step in > 140 MHz range for official fw = 10k

You can select less range, but used frequency for any point = (int)(freq/10000)*1000

John Gord 2021/08/01 16:26

Tom,
The Ojisan firmware for the V2 (original and 4 inch but, not plus or plus4) does allow smaller steps.  I think that they are 6kHz in the 2.2-4.4 GHz range, going progressively smaller on lower octaves.
--John Gord

On Sun, Aug 1, 2021 at 12:35 PM, TomS wrote:

DiSlord 2021/08/01 21:08

>Ojisan firmware for the V2
Yes (but ask about V2Plus4) Ojisan firmware for the V2 made 6k step, going progressively smaller on lower octaves.

To reply to this topic, join https://groups.io/g/NanoVNAV2

View this thread on groups.io