Sorry, I do not understand your question. Please explain

which is the integrated mixer circuit that you use to lower the wifi frequency in your youtube tests
greetings and thanks.

It's a Mini-Circuits mixer, from the SIM range, forgot what number.? Its a double balanced diode mixer. Any level 7 (requiring maximum +7dBm LO drive) mixer that can handle the high frequencies will do
If you want some conversion gain (which is nice when connected directly to an antenna) you may also use an active mixer such as the? AIM81008 but you have to reduce the LO input level to -5dBm

Juan and Erik,

The same mixer Toni indicates above arrived just today from another shop at Aliexpress where I ordered it beginning this month.
So I haven't tried it yet, but was curious about the chip and figured out that it has to be the AnalogDevices mixer HMC213A or HMC213B,
see??or the (obsolete)??
There you have all the available data.

Erik probably used a different mixer module, so I am curious about the experiences of Toni, did it work out like in Erik's video?

I don't know if the datasheets contain enough data to undertand the workings when you use the thing as a (sub)harmonic mixer like Erik is doing in his video,
but part of the trick is using the High output of the tinySA which gives you a square wave into the LO input of the mixer I guess.

Keep experimenting!
Ben

The HMC213A requires an LO level of +13dBm where the mixer I used only needed +7dBm LO. It may work.
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Hi Erik,

Thanks for the warning, my first experience shows that it indeed just works.
I can see Wi-Fi and DECT activity, but much more cluttered than in your example video.
You really have to know where to look.

But in re-viewing your video I also noticed that you apparently used a kind of rigged tinySA? ;)
The output level is set to +16 dBm while mine cannot go over 9 dBm.


Was this setting possible with an older version, or is it something which had to be corrected in the meantime ?

BenS

yes, it's working .

? ??

Old FW's (before say this summer) will go to +16dBm. Later Fw's only to +9dBm
The old high output level was too destructive to I reduced the maximum.
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开云体育

Did you mean "IAM 81008"??

Mike C.

On Sun, Dec 19, 2021 at 03:07 PM, Mike C. wrote:

Did you mean "IAM 81008"??

Yes
?
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