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One of the best things you can do to prevent ESD failures is to develop a habit of discharging any cable before you mate it with any kind of equipment.? Cables can acquire a many-thousand volts

Unless an input or output is marked, as happens with some very high-power attenuators, I assume they are bidirectional.? They are generally Pi or T topology and thus symmetrical. A notable exception,

Agree, but not everybody has such a sensor -- Designer of the tinySA For more info go to https://tinysa.org/wiki

M preferred method of dealing with an unknown signal is by using a wideband power sensor and slowly approaching the mating connector with the unknown signal, I can sense a whopping signal by

No special settings. Center the sweep frequency in the center of the QRM with minimum span to cover the unwanted signal. RBW should be on auto. Narrow the span tightly on one spike if the signal is

Bruce Akhusrst, Roger Hartel: Thank you. Of course they came from AliExpress. Anyway, they are working and I can use them for my humble needs. Neither the seller (except one!) nor the manufacturer's

Quite a lot of cheap (and not so cheap) low power chinese attenuators DO declare an input side in datasheets.? ?This is not done for fun.? ? ? It is almost always the male plug side that is

No [email protected]> wrote:

Hi, Does it matter which side of the attenuators to connect (as in the photo) if there is no input/output marking? Thanks in advance. Wlado

Doing a full band scan (zero to max frequency) will also work. -- Designer of the tinySA For more info go to https://tinysa.org/wiki

Remember, it is the total power going into the mixer or ADC which can cause an overload indication, not just the signals being displayed on the screen. It is good practice to check the power of an

Thanks David and Erik. I find cell tower signals that look similar in lower frequency ranges, that are plausible cell tower signals, e.g. LTE band 1 downlink (20 MHz): They also match the german

I don't see those on my ZS-407, Kevin. Must be a real signal, as Erik suggests. David -- SatSignal Software - Quality software for you Web: https://www.satsignal.eu Email: davidtaylor@...

This very much looks like a mirror of a mobile phone base station signal. As you have read before unlocking the ultra mode, these wide band signals are very difficult or even impossible to eliminate

Hello, i'm investigating the upper frequency ranges of the tiny SA ZS-407 and i've found three very strong wideband signal around 8.56 GHz that i find odd and i'm not quite sure they are really there.

Try to avoid using the internal attenuator by using external attenuation as the internal attenuator is not so linear for higher frequencies, hence the "reduced linearity" warning Keep signal at mixer

Hi Erik, Thanks for all that helpful information. I'll make sure to keep my TinySA properly charged for future scans. I’m working on calibrating my TinySA Ultra ZS-407 at 7.37 GHz. The interface

Sorry, can't use the overload warning to improve accuracy External attenuator can help reduce overload and increase accuracy when it avoids using the internal at

Hi Erik and all, Thanks for the detailed correction values — that's very helpful. I have a quick follow-up question about the “Overload” warning on the ZS-407. Do you know approximately what

Quick check of a random ZS-407 Remember the variation in sensitivity above 7 GHz between models can be huge The ZS-407 tested has less than average sensitivity around 10 GHz Tested with -10 dBm input