I have been out of the loop for a while. Is there any work being done on a version with a larger screen?

Tnx,
Dale W4OP

Phil,
? Bought mine from "Elikliv_EU", ordered on 18th Sept via Amazon UK.
Although Amazon Seller info indicates this company is in China, packaging
indicates a Return address in Basildon, Essex.
Tracking indicated that package arrival on Friday 2nd Oct, but arrived today
via proper Amazon courier company.
Regards
Frank
G8PCB

ok cool!
yeah maybe you need to limit to a fixed number of harmonics 7? 10? or limit to a frequency span range set by the user or both.

thanks
Paba

Using the latest FW (v1.1-4) this video demonstrates the AM and FM generation and analysis capabilities of the tinySA

New FW release
Version: v1.1-4

Changes:
- The AM modulation depth increased to 30%
- NFM deviation increased to 5kHz
- Modulation frequency limits set to 100Hz..6kHz

I will be making a video showing the use of the modulation on the low output and the analysis of the modulation using a tinySA

Will contact you via email

The tinySA has a harmonic marker function?
but as there are only 4 markers I could add the calculation but you may miss many? higher harmonics.
I should be possible to do the calculation on the fly by finding all harmonics in the scan of the signal under marker 1. Let me put this on the wish list.

Hi Erik

you can see this in the hp 3562a. Harmonic Markers. The docs are online.

These markers highlight the fundamental frequency and the first few harmonics. Then the sw can do some math on these to calculate the % THD generated by the harmonics identified or in a given range. What’s nice about this the number is THD not THD+N. I forget if the user uses the cursor to identify the peaks or if the sw detects the peaks or calculates them once the fundamental is identified.
thanks
Paul

Cal Fails.? I reset Cal and repeated.? Same thing.? 30MHz at -41.7dBm.? Everything you stated makes since.? It looks like the internal cal generator isn't working properly to me.

To give a bit more info. The errors you get happen when you calibrate the level with not enough signal.
This could be caused by incorrectly fitted cable or (hope not) a HW problem in the cal output.
If the latter happens you best do a CONFIG/CALIBRATE/RESET CALIBRATION and run the self test again. If the self tests succeeds and you did have fixed the cable correctly during LEVEL CAL there may be a problem in the cal output power level.
Report here and I will guide you through the next steps

On Tue, Sep 29, 2020 at 05:01 AM, Erik Kaashoek wrote:

The wiki contains some info on capturing these signals:?

Awesome!? Didn't realize the functionality was present.? This will be interesting to see how with the software can be used to decode the signals... maybe saving time using info from like the Universal Radio Hacker or other compilations data.?

On Tue, Sep 29, 2020 at 04:53 AM, mrutkaus wrote:

I have tried to see the signals from outdoor wireless camera and my driveway alarm, but can't readily see them. Maybe I need to know the frequency first and then set the Tinsa to a narrow band?

There should be a device FCC ID that can be traced on the to determine what the operating frequency of the device is.? I know the outdoor wireless cameras that I have all operate in the 2.4GHz or 5.8GHz range.? Eachine makes cost effective multichannel receivers that can detect the video cameras.

My guess using the tinySA for those frequencies, you'll need to downconvert to the tinySA frequency range using a downconverter or mixer design.

Outdoor wireless weather sensors/stations I believe from reading into the Universal Radio Hacker protocols, are typically within the tinySA range and I have no idea regarding driveway alarms since I'm not sure if those are Infrared, microwave, capacitance or some other maybe low end VLF or lower range.??

Here is a neat video that somewhat goes into detail using for finding interference:

Don't worry.

First do a power level calibration.
Then run self test again

The difference of one day of use.? Went to turn on today and ran a self-test.? I have no idea.

My HP spectrum Analyzer does not search for a signal like a scanner does.? For finding an unknown frequency of interest, I take the device close to the SA input antenna which will make it the largest amplitude signal on the trace.? I also do a Google search to divine the probably frequency and set my start-stop range just outside that (i.e. probable frequency is 450Mhz - start 440Mhz - stop 470Mhz) and narrow it down from there.

Pat

开云体育

WFM and NFM are done in the same way but NFM only makes small adjustments to the fractional divider.
The high output level steps are using some tricks to get to the levels. These tricks are not formally documented and the actual output levels can indeed deviate considerably from the target level
The spikes probably come from an overshoot of the PLL loop filter
In a new FW I switched to an 8 step approximation and only make the smallest possible steps NFM
Will send to you and Kurt for testing.