Nick,
In the first two photos of message 29622, it appears that the NanoVNA is in Transform mode. Did you intend that? (Transform is an item in the Display menu.)
--John Gord
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On Mon, Sep 5, 2022 at 01:03 PM, Nick M wrote:
Thanks Roger , I am understand how it should work , I wish I could get a
single dot on the smiths chart . Scattered after reset and cal . It was hot
yesterday, so all day I tried to get it to work again.
It a shame just over a year old :(
Maybe I messed with expert settings?
What are the proper settings.
On Sep 5, 2022, at 10:21 AM,
On Sep 5, 2022, at 10:21 AM, Roger Need via groups.io >
<sailtamarack@...> wrote:
?On Sun, Sep 4, 2022 at 11:06 PM, Nick M wrote:
The -h dings when i go into dfu boot mode , the device manager has a flag
on
it to upgrade driver.
Did you install DFUSe demo? It installs the driver. If you are getting a
flag then you can manually update the driver by right clicking and then
pointing to the DFUse directory where the driver is located. The location is:
C:\Program Files (x86)\STMicroelectronics\Software\DfuSe v3.0.6\Bin\Driver
This video describes the process >>
The issue , is simple , i reset on the software VNAsaver . 40 version for
this example . i set up the freq range ,1.mhz to 4 mhz
Reset
I start the calibration assistant, all is well. . i hit save , i set up
cont
sweep , i get swr all over the place, 1.1, 5.5 etc
with the 50 ohm connected, i take off the 50 ohm the same thing all over
the
place . .
Before you start updating the firmware you should check that you can
calibrate the NanoVNA in standalone mode without a PC connection. Remember to
Reset first. The do the SOL calibration and check for proper operation with
each cal load. on the Smith chart you should get a dot on the far left for a
short, center for 50 ohms and far right for open. My screenshots shown below.
Roger
