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g4ixt / QtTinySA

A Python 'TinySA' GUI programme using Qt5 and PyQt5
GNU General Public License v3.0
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Cannot sample about 6ghz #59

Closed ashjmckenzie closed 2 months ago

ashjmckenzie commented 4 months ago

I'm on v0.10.6 i cannot run sweeps above 6ghz it just stops drawing, also cannot enter values above 6000mhz in any field (Center, Start, End)

g4ixt commented 4 months ago

This is because the TinySA-Ultra specification frequency range is up to 6GHz. Whilst it is possible to use the hardware above this frequency it's not calibrated so it seemed a reasonable limitation to impose.

ashjmckenzie commented 4 months ago

Would it be possible for you to extend this to 12ghz? , while not calibrated, there are a number of applications tiny is useful for in this space, including video links and satellite downlinks, tiny can observe up to 12g

Many thanks

On Wed, 17 Jul 2024 at 21:44, Ian @.***> wrote:

This is because the TinySA-Ultra specification https://tinysa.org/wiki/pmwiki.php?n=TinySA4.Specification frequency range is up to 6GHz. Whilst it is possible to use the hardware above this frequency it's not calibrated so it seemed a reasonable limitation to impose.

— Reply to this email directly, view it on GitHub https://github.com/g4ixt/QtTinySA/issues/59#issuecomment-2232887619, or unsubscribe https://github.com/notifications/unsubscribe-auth/AKRTBVN45ZTPYYJPXEZ4GY3ZMY4GXAVCNFSM6AAAAABK7SYPNKVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDEMZSHA4DONRRHE . You are receiving this because you authored the thread.Message ID: @.***>

g4ixt commented 4 months ago

It's certainly possible, the limit is set on Line 88 and you can change it yourself. self.maxF = 6000

Changing it might introduce bugs somewhere so you would need to test it. I added an "external mixer/LNB" mode for use with satellite downlinks and you will almost certainly get better results like signal/noise at 12GHz by using that with suitable hardware.

I don't intend to modify the code so if you make the change and then update to a later version you will need to change it again. If it introduces any bugs, let me know.

g4ixt commented 4 months ago

I have added the max frequency to the 'preferences' screen and it is stored in the configuration database. This will be in the next version. It only takes effect after closing and re-opening the programme.

ashjmckenzie commented 4 months ago

Thank you !

On Fri, Jul 19, 2024 at 5:38 AM Ian @.***> wrote:

I have added the max frequency to the 'preferences' screen and it is stored in the configuration database. This will be in the next version. It only takes effect after closing and re-opening the programme.

— Reply to this email directly, view it on GitHub https://github.com/g4ixt/QtTinySA/issues/59#issuecomment-2237143936, or unsubscribe https://github.com/notifications/unsubscribe-auth/AKRTBVKYKZZRUK6LSXIL4ZDZM74PZAVCNFSM6AAAAABK7SYPNKVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDEMZXGE2DGOJTGY . You are receiving this because you authored the thread.Message ID: @.***>