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Tracking generator option

 

Using two tinySA, one as spectrum analyzer in low input mode and the other as tracking generator with external modulation input
The tracking generator can be set to a small offset so it is possible to do some tests on mixers.
The metal can is a 110MHz BPF
Bandscope

 

Using a smaller sweep to cover the 40 meter band gives a bandscope



A lot of digital traffic.
I still need to optimize the gamma a bit
Waterfall display

 

And for those that want to see what happens over time a waterfall display
Re: Wiki Typo

 

Karsten,

Thanks for the feedback. Typo corrected and phase noise spec added.?
Phase noise is -90dBc/Hz at 100kHz offset and -115dBc/Hz at 1MHz offset. This is a consequence of the balance between cost and functionality.
In this post?/g/tinysa/message/5? you can see a picture of a full 350MHz scan showing all the harmonics (and additional spurs) of a 30MHz signal.
As the VBW is bigger then the RBW given the 290 display points the tinySA inserts additional steps and takes the maximum of these steps for the display points.?
Wiki Typo

 

Dear Erik,?

the device looks promising in the Wiki description. For most ham operators it should be a helpful device.

Only minus for me: as far as I see it, for useful oscillator characterization (PLL performance) it is not usable: -100dBc a few kHz from the carrier is not in the specification.
But for harmonics (-70dB should be kept to prove -60dB)? and spurious search it would suit, as far as I see it.
The question will be: Can you can scan the 1st harmonics of e.g. 50MHz and the next harmonics 100, 150, 200, 250 300 MHz with one sweep and what will be the detection limit? Or would the user have to scan the first harmonics, memorize the level, change the range, scan the 2nd .....

To the typo: in the technical Specs "Input frequency range from 240MHz to 9600MHz" has a "0" too much.

vy73 de Karsten, DD1KT
Some more examples

 

Full range low input scan of the build in calibration signal.



AD9851 output with delta markers on the harmonics
Some examples of measurements

 

Some picture showing what the tinySA can do

Measuring the harmonics of a 30MHz signal



Showing the power envelop of a mobile phone base station.
Request for testers for the tinySA

 

During the last weeks I have been designing, together with Hugen, a self contained, ready build, hand-held spectrum analyzer to be sold for a very acceptable price.
The outline and display are exactly the same as the nanoVNA and the tinySA will come with a housing.
As the HW performance now seems to be OK and the SW is more or less complete i could use the help of some (not many) testers.
Preferably people that already own (or have access to) a spectrum analyzer and are active building something that requires a spectrum analyzer in the 0.1MHz till 350MHz range.
This tinySA can also capture 240MHz till 960MHz (with somewhat reduced performance and functionality) and it can also be used as a signal generator (0-350MHz and 240MHz till 9060MHz)
If you think you could contribute to the testing feel free to send me a PM with some info on the project you'd like the tinySA for.
There will only be a limited number of tester products.
Selected testers will receive a tinySA and are kindly requested to use it and feedback their experience.
I create a dedicated tinysa group for this purpose. /g/tinysa/topics
More information on this version of the tinySA can be found in this wiki
Please be patient as the wiki is running a bit behind.
Re: Welcome and feel free to ask about the tinySA

 

First and foremost I wish you and Hugen health and success!

Looking forward to hear more about the miniSA.

Let us know how can we help and test it.

73 de Lu¨ªs, CT2FZI
Welcome and feel free to ask about the tinySA

 

This group will be used to provide support to tinySA users
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