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A word of warning for those that want to measure the spectral purity of their transmitter. As the tinySA is specced to accept +10dBm without attenuation and +30dBm for some seconds with maximum

Although currently out of stock, R&L Electronics in the US has announced that they will be selling the tinySA:

On the other hand if vat or duty is due according to said countries rules. We, as in the customer, ought to pay it. We should not avoid it. It pays towards our society services after all. Otherwise

Both links are on the wiki page https://tinysa.org/wiki/pmwiki.php?n=Main.PCSW

Today DHL delivered me a couple of tinySA. Still no powered it up, but I want to note that the packaging was really good, thanks Maggie. The only negative comment is about DHL. DHL is a carrier and

DSL dropped off my TinySA yesterday. A quick check with my Sig Gen shows it works. Now to read the manual !! One thing I need is the PC Software. I looked at the Wiki, saw some pictures, but I didn't

On Mon, Aug 17, 2020 at 09:31 AM, Erik Kaashoek wrote: Above 1GHz RF is like water. It flows? through every hole [Our lab called it the Dutch boy effect.? You plug one hole and RF finds another

Have a look here: https://tinysa.org/wiki/pmwiki.php?n=Main.ResolutionFilters

Which adf4350?

Above 1GHz RF is like water. It flows? through every hole Hiding with the spur removal does not work as the spur removal removes spurs that do not actually exist but this 48MHz harmonic leakage is an

The TinySA doesn't use the ADF4350, it uses a couple of Si4432's.

Regarding ADF4351, would the Tninsa perform better with these rather than adf4350? Steve L ? G7PSZ

Now the 64,000 dollar question. What could be done to suppress them? Either hide them with software tricks, such as the spur-removal option, but that might leave “holes” in the spectrum, or

Yes the unit certainly has limitations, though for the price is not to bad really. Here's a -4dBm carrier from an ADF4351 at 50MHz. The TinySA shows a wide flat top and noise floor of only 45dB down

Done, The 4.8MHz is indeed present.

Erik, On my tinySA there also appears to be a sub-harmonic of the 48MHz clk at 4.8MHz.? Possibly a divide by 10 output? LOW and HIGH INPUTS terminated in 50ohm loads. Your explanation and an

These are 48MHz harmonics generated by the MCU. For now all tinySA will show them at 48, 96, 144, 192 and 240 MHz

Have I just been unlucky and got a bad unit, or does everyone suffer spurious signals on their TinySA? I see specific signals at 144.20MHz, 192.15MHz, and 240.19MHz. They are unstable, and wander

Yes, to be done

Very good. Could the firmware not have used the unique CPU serial number to create the device ID ?