miniVNATiny keeps generating after sweep ?

Here we will discuss only topics related to the miniVNA Android application
DB7EW
Posts: 8
Joined: Mon Mar 23, 2015 1:53 pm

miniVNATiny keeps generating after sweep ?

Post by DB7EW » Wed May 13, 2015 10:14 am

Hello,

I am new to miniVNATiny and BlueVNA.

yifang TAB1004 (Android 4.2) & BlueVNA v0.9.4-8 & miniVNA Tiny

Here is my first question :
When using reflection mode at the end of the first scan and every scan after it keeps generating RF at the top frequency of the sweep.
I do not want to "transmit" continously "out of band" with no need to.
Is it a bug or on purpose ? I would expect it to turn off after the job is done ?

vy 73 Werner

User avatar
yo3ggx
Site Admin
Posts: 587
Joined: Wed Aug 15, 2012 8:30 pm

Re: miniVNATiny keeps generating after sweep ?

Post by yo3ggx » Wed May 13, 2015 10:25 am

Hi Werner,

This is a "side effect" of the way frequency scan is implemented. I will update the application to stop generating a signal after a full capture.

Thank you for reporting this.

73 Dan YO3GGX

DB7EW
Posts: 8
Joined: Mon Mar 23, 2015 1:53 pm

Re: miniVNATiny keeps generating after sweep ?

Post by DB7EW » Wed May 13, 2015 10:29 am

Hi,
that was very quick.
Thanks a lot ...

73 DB7EW

User avatar
yo3ggx
Site Admin
Posts: 587
Joined: Wed Aug 15, 2012 8:30 pm

Re: miniVNATiny keeps generating after sweep ?

Post by yo3ggx » Wed May 13, 2015 10:49 am

Hi Werner,

Please download version 0.9.4-8A from my site here:
http://www.yo3ggx.ro/btvna/btvna_v0.9.4-8A.apk
and check if the signal is stopped after a capture. I don't have the Tiny with me to test.
If is ok I will push it in Play Store as 0.9.4-9.

Thank you.
73 Dan YO3GGX

DB7EW
Posts: 8
Joined: Mon Mar 23, 2015 1:53 pm

Re: miniVNATiny keeps generating after sweep ?

Post by DB7EW » Wed May 13, 2015 11:24 am

I Tried so ... and 'm totally lost now.
I do not know where to start describing.

I can not get to "REFLECTION" mode at all.
I end up in "MANUAL CALIBRATION" where I can load my previous calibration "SUCCESSFULLY",
but it won't run a capture, it even won't switch to "REFLECTION" anymore ? "MANUAL CALIBRATION" again and again :o(.

User avatar
yo3ggx
Site Admin
Posts: 587
Joined: Wed Aug 15, 2012 8:30 pm

Re: miniVNATiny keeps generating after sweep ?

Post by yo3ggx » Wed May 13, 2015 11:28 am

Hi Werner,

Please revert to the Play Store version (0.9.4-8).
I will check later in the evening and be back with a functional update.

Sorry for that.

73 Dan YO3GGX

DB7EW
Posts: 8
Joined: Mon Mar 23, 2015 1:53 pm

Re: miniVNATiny keeps generating after sweep ?

Post by DB7EW » Wed May 13, 2015 11:41 am

looking Forward to this.

After deinstallation and reinstallation from the PlayStore the Problem stays the same.
I will try to recalibrate, old calibration files don't seem to work anymore ...

73 Werner

User avatar
yo3ggx
Site Admin
Posts: 587
Joined: Wed Aug 15, 2012 8:30 pm

Re: miniVNATiny keeps generating after sweep ?

Post by yo3ggx » Wed May 13, 2015 11:44 am

Hi Werner,

This is really strange. I suspect a corrupted configuration file.
If you uninstall the application the configuration file is not removed. Please try to reset it with a long pres on START button.

Hope this helps.

73 Dan YO3GGX

DB7EW
Posts: 8
Joined: Mon Mar 23, 2015 1:53 pm

Re: miniVNATiny keeps generating after sweep ?

Post by DB7EW » Wed May 13, 2015 1:20 pm

Got it working for now, just as before. Long "START" and fresh (re)calibration.

In addition I noticed that the generator stays on when you close the application.
Transmitting without being used at all.

I am puzzled with "frequency calibration" as well. Hard to describe scenario.
When I feel ready to describe it, I will post again.

User avatar
yo3ggx
Site Admin
Posts: 587
Joined: Wed Aug 15, 2012 8:30 pm

Re: miniVNATiny keeps generating after sweep ?

Post by yo3ggx » Wed May 13, 2015 1:31 pm

Hi,
[
quote="DB7EW"]Got it working for now, just as before. Long "START" and fresh (re)calibration.
[/quote]
I wonder now if version A is not ok and it was just a configuration file issue during update.
In addition I noticed that the generator stays on when you close the application.
Transmitting without being used at all.
I suppose this is for the same reason as during the end of scan.
If I send a scan command to miniVNA the device doesn't know to stop the signal at the end of scan. I need to send a specific command for that.
Did you checked that in Generator mode you can start/stop the generator from the button in the app?
I am puzzled with "frequency calibration" as well. Hard to describe scenario.
When I feel ready to describe it, I will post again.
Ok.

Thank you,
73 Dan YO3GGX

Post Reply