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QUOTE: " My homemade noise source delivers about 0.5 volts across a 50 ohm load, [the same as the input impedance of the TinySA] which I calculate, from 'V squared over R' to be about 5mW. Does this

At what frequency are the filters configured for that you wish to measure? Connect the noise source through a 3 to 6 dB attenuator rated for this frequency range between the noise source and the input

I would definitely start with an attenuator.? You have calculated the power output of your noise source to be 5 mW.? From the specs on the wiki: * Absolute maximum input level of +10dBm with 0dB

FYI, the TinySa and the TinaSA Ultra are running the latest firmware release. -- Ed, K0KC k0kc@... http://k0kc.us/

Ok, Eric, I think that the noise source is not my problem. When I divide the spectrum into three channels centered at 400 MHz and a channel width of 266 MHz and *do not* connect the noise source, I

For those who cannot or do not wish to run Windows Powershell scripts, here's an Excel macro to convert TinySA CSV files to WWB and IAS compatible format. You can download it from my website at

De For a noise source it's not important what the noise level at any frequency is put the total power it outputs going into the tinySA There is a simple procedure to check if you are safe Connect the

Amplitude measurements will be relative only, as you don't have a way to funnel that horn output into an SMA connector to go into the Ultra, and the Ultra isn't calibrated up that high anyway.? But

NO, you are NOT an idiot! Years ago, two aircraft repair crews changed all the boxes multiple times to fix a problem in a system. None of those efforts solved the problem. Finally someone reasoned out

Is there more fun to be had than finding out you are a total IDIOT?? Please let me know. I’ve been playing with my new Ultra for a few days and finally decided to upgrade the firmware.? I first

I recently purchased noise source from an eBay vendor in China for the purpose of making filter measurements with my TinySA or TinySA Ultra. The specification on the case of the noise source indicates

The current demand for the ultra outpaces the planned manufacturing capacity. Furthermore COVID in China is disrupting logistics? and we soon we will reach Chinese new year. Expect low availability

We do, Larry, in other threads. I ordered (and quickly received) my Ultra from R&L after learning, from a thread like this one, that the 'Not in stock' status doesn't necessarily mean 'not in stock'.

Hi Folks, At some point in time the TinySA Ultra supply will meet the exceptional demand and everyone will have the opportunity to purchase from their vendor of choice. In the mean time discussing

Thank you everyone for the input. And NO I will not deal with overseas asian websites either, they are slow and sometimes not easy to navigate, huge time zone differences and the possibility of facing

Hi John, Using FREQ/FREQ SHIFT you can correct for the upconverter shift by setting the actual start frequency to 0Hz After enabling the shift, all frequencies displayed should be as before the

Go to tinysa.org, read up how to enable the ultra mode, after enabling it, enter the frequency and span of interest and go for it.

Hi Experimenters, Msgs on the tinySA (aka: Ultra) have been coming fast and furious. "The Boss" described a 10GHz horn and even Mario Vano showed a 10G signal on the Ultra. (I may have gotten confused

As I stated above, after waiting (for unknown reasons) I ordered (from R&L) on December 9.? Today I received an email that my unit had shipped today (December 19).? UPS says expected delivery date

Here is the 50khz signal at -50dbm