开云体育

You could copy and paste some of the questions in this forum - that might be interesting.

It would answer 0010 1010.

Leakage between ports will have no effect on an S11 (or S22) measurement. Best regards, Don Brant

Shirley, that's exactly what I normally do, at my station. Using PowerSDR and a Red Pitaya board. But I would love to have a little portable spectrum analyzer that can do this measurement in a totally

I'm impressed. Last time I sampled this, it read like a 13 year old on the Internet. Progress? Heaven help us.... I wonder how it would respond to the question: "What is the purpose of life?" If it

A milliwatt is plenty to go through 10 meters of piled up earthquake rubble, 2 ways and get a detectable signal back. You can get nice Doppler from a human or a dog at 30-40 meters free space with a

I asked Google Bard about the NanoVNA. Here's its response. Brian

A clever idea - The challenge in these systems is that the Tx/Rx isolation, even with two antennas, is around 20-30 dB. In a practical implementation I did for the FINDER victim detection radar at

That would be an interesting experiment for sure. I have a friend who is tinkering with miniturized radar altimeters for drone use who might be interested in that. For radar that never actually makes

One way to increase the range of your Radar is to put s small power amp on the S11 Port and a preamp on the S22 port.??? Then have two antennas.??? Cal would be fun, is you just do a thru call,

No - the leakage is from CH0 (the source) to CH1 (the receiver for S21). The leakage doesn't affect a S11 measurement. The dominant limit is the SNR of the measurement, which in turn is the noise

Hi Manfred, Yes it is an SA6. (and sorry guys that I did not make it clear that it is not a TinySA - not that I'm exactly sure what defines a TinySA..) Actually it has proven quite useful for what I

The tinySA Ultra will show IMD on SSB signals just fine. Maybe not ideal, but certainly adequate. Attached is a screen shot showing a 10 meter band SSB signal with the standard 700 Hz and 1900 Hz test

Something else I've been wondering - I've heard from various sources that the physical configuration of the two SMA connectors/test ports on the nanoVNA (particularly earlier PCB versions) resulted in

Hello. I have an open source Nano VNA, white face, that has been in it's box since before Covid. The battery will not take a charge (using an Apple iPad charger/cable) nor will the unit turn on when

The TinySA Ultra has RBW down to 200Hz. How tight do you need to go? 73 -Jim NU0C "Shirley Dulcey KE1L" <mark@...> wrote:

Of course - not sure why I typed picoseconds instead of nanoseconds as that doesn't make any physical sense. Oops!

None of the inexpensive handheld spectrum analyzers has a low enough RBW for checking out IMD and other in-passband spurs on SSB signals. Use the spectrum display on an SDR for that. I have gotten

Worldwide it is about US$140 delivered from the Zeenko Store on AliExpress. It's a tad more in the US from R&L Electronics, but it's faster because you don't have to wait for shipping from China.

Peter, I also wonder which spectrum analyzer you bought. You write it's a 6GHz one. Is it the SA6? I'm very interested in this, because I'm looking for an inexpensive 6GHz spectrum analyzer, and I saw