开云体育

For a project with emissions in a specific frequency band I'm trying to get a first rough idea if and what level of shielding might be required. For that I have a tinySA Ultra and a basic log-periodic

Hi to all, as promised, just to share results of that experiment I attached PDF document but only for my mobile phone operator "named A1" (upload/download of <>10 GB data with my phone): - results

All was fine, until I flashed custom firmware. Didn't like it, tried to go back to stock. Basically, on Windows 10, when I connect USB to PC and try to enter DFU mod, it throws me right back out of

FWIW, You can buy special high endurance SD cards that are designed for continuous rewriting and seem to last a very long time. They are intended for applications such as car dash cams, security cams

@glradio Many thanks for the info below. Yes that looks perfect, I currently use the LEVEL / Trigger function to save to the SD Card but due to size limitations have to set the capture time to a

Perhaps you are looking for something similar to this ( /g/tinysa/topic/105518436 )... What do you currently use to save the data acquired by TinySA Ultra in your absence ?

You be better using an SDR with IQ recording. I used an sdrplay rsp1a. The tiny SA is a superb hammer.... Not every problem is a "nail" Regards Ian McCrum MI5AFL __

Yes, I had an original Ultra and after exceeding the power limit somewhat, it continued to pass self test but when measured via VNA with 10dB+ of ATT it was nowhere near 50 ohms. I replaced it with a

Do you have experience with this? -- Designer of the tinySA For more info go to https://tinysa.org/wiki

Also keep in mind, you can damage the built in attenuator. It can still pass self test, but stick it on a VNA and you’ll quickly notice it’ll no longer be anything close to 50 ohms. Oops.

An LNA is useful in viewing weaker signals. But in order to use it successfully you have first eliminate any excessively strong signals before they reach the analyser input. This is true for pretty

Many thanks for the info Erik. Kind Regards, Lee Johns Lee Johns Search Training Consultant Mobile: +964 750 329 2155 ________________________________ Sent: 21 October 2024 13:18 To:

Both Matthew and Andrew -- Designer of the tinySA For more info go to https://tinysa.org/wiki

Thank you all for the responses! I think I’ve got a better handle on it now. Erik, did you mean Matthew’s response about the LNA?

Recording the waterfall for playback requires recording of each scan to the SD card. Not sure how long the SD card will survive this continuous writing. Currently no plans to implement this. You can

I have a question regarding the Waterfall feature, I believe at the moment you can just monitor (i.e. watch live), is there a plan in the future to be able to record the waterfall and play it back

If it passes the selftest noting is broken. Yes, all input power may reach sensitive components. Do stay below the max input rating as summed over the all frequencies Yes, equal to with power on.

Fundamentally there is no substitute for dynamic range. Unfortunately huge dynamic range in spectrum analysers comes with a huge price tag also. Even on many higher end analysers, in a “busy” RF

As others have said, do the self test… But also bear in mind that it’s the aggregate power of all the signals “in the air” within the whole range that the analyser can see, not just the range

The LNA lowers the noise floor about 20dB so signals pop back out. Even using the included antenna I always keep a 10dB external attenuator in line. You cannot use the SA's built in attenuator and