On Wed, May 6, 2020 at 06:49 AM, <erik@...> wrote:

Normalize does a "Store" and enables "subtract stored" so it is most useful with a noise generator (or tracking generator)? ?

? ?I knew that 500 MHz noise generator I purchased a few years back would eventually be of use.

- Herb

On Wed, May 6, 2020 at 07:11 AM, <erik@...> wrote:

On Wed, May 6, 2020 at 06:30 AM, hwalker wrote:

?I think one of the next most requested features you may be receiving is amplitude offset menu to account for external attenuation or preamplification.

Implemented
Under LEVEL added EXTERNAL AMP, value in dB, can be negative. Added status display to warn

?Outstanding!

- Herb

On Wed, May 6, 2020 at 06:30 AM, hwalker wrote:

?I think one of the next most requested features you may be receiving is amplitude offset menu to account for external attenuation or preamplification.

Implemented
Under LEVEL added EXTERNAL AMP, value in dB, can be negative. Added status display to warn

Normalize does a "Store" and enables "subtract stored" so it is most useful with a noise generator (or tracking generator)
In the settings tab you can change the "Zero level" setting to offset any external attanuation or amplification.
On the tinySA itself you can use the "actual power" under "settings" to offset anything. But it would be fairly simple to add under LEVEL an option OFFSET

On Wed, May 6, 2020 at 02:40 AM, <erik@...> wrote:

Herb,
All units are implemented, both in marker info and graph display, hope I did the math correct.

=================================================================
Glad to hear Erik.?
? ?I think one of the next most requested features you may be receiving is amplitude offset menu to account for external attenuation or preamplification.? Does the "Normalize" menu option in the tinySA software application accomplish amplitude offset?? I played with it but couldn't correlate the changes.

? BTW, the config file also corrected the string value exceptions I was previously receiving.

- Herb

For good measurement try to keep strongest signal minus attenuation below -20dB if possible

Both

sorry to disturb as I have a question that's perhaps a little naive...
does the software display in real time what the SA is doing? or it just captures static images?

Claudio

开云体育

Herb,
All units are implemented, both in marker info and graph display, hope I did the math correct.

We're very sorry, we're not sure when we'll start mass production of the tinySA, we're sending the beta version of the tinySA to some of the users who participated in the inner test, but due to COVID-19, we're distributing it very slowly and it could take up to a month. We will make final improvements and finalize the version after we get feedback from users, thank you for your interest, I will publish it in this group as soon as we are ready for mass production.

erik, load the configuration file you provided and it work fine.

I have owned two nanoVNAs now for best part of a year.
Thank you so much to all involved and for making them available and taking the time to share with us at an affordable price.

Now to the main point of my post.
Where/when will the tinySA be available to us ardent followers, and is there any indication of the approximate price because knowing this, and by no means rushing release, I would love to add m name to a pre-order list.

Many thanks again to all involved.

Garry
M0MGP

With the wrong previous exe some wrong settings got into the configuration file that is automatically loaded.
Can you try? to load this configuration file?
The output from the log should be like like this where the important difference is "v 0 O 433800000" (in bold)

Can you check if the settings page looks like this



and if not, change to these values?
In the picture you posted it shows "Level/dB" as 7.8 but that should be 2
And attenuation should be 0
If it still does not work, can you enable the log and post the log?

Erik, I updated the new firmware and PC software, but it still doesn't work.

Hi Hans,

Thanks, excellent investigation.
The SI5351 SW used was optimized for fast sweep for my DIY VNA so it is terrible with spurs.

Sorry guys, must have been a bit confused yesterday.
Please use a new executable found here
?
and for those that already have the v0.2 HW, do update the FW of the tinySA with the file found in the the same location (either ch.bin of ch.elf)

erik, I connected the tinySA with PC software and the PC software is not displaying the spectrum properly and the spectrum on the tinySA LCD is not displaying properly anymore.