Was about to ask the same.
It looks very similar.

chat, please rate my NVIDIA BlueField-3 DPU power, cooling, and communications solution

yes, that's a hairdryer. yes, it is very loud. yes, it reduces the temperature from "96C and after 10 minutes the NVMe gives up trying to read" to "80C"

This way one of the ports stays original and can be used to feed power to the LNB.
While the other two will output the RAW IF from the MXL803.

As I cannot control the MCL862, I bypassed it.

The IF is delightfully wide.

Here's some bad graphs about the two ports.
The horisontally polarized one seems to have 10.400 GHz LO and the vertical one seems to have a 10.000 GHz LO.

And get the downconverted RF out.

Let's feed it some RF.

The 3rd harmonic from the ADF4350 synth is plenty strong.
Hell, even the 5th one is.
As I used that and a homebrew version of this in the past to align one 19GHz LNB to 20GHz.

Even without any commands, the MXL862 does something.

Instead, I soldered in some wires and gave it power.

There is no control bus, it is just all strapping resistors apparently.
So far I have not bothered to map out it's connections that much.

The LNB side of things is managed by yet another MaxLinear chip without public documentation.
An MXL803. It seems to be a dual down converter with all the frontend bias control and charge pumps for pHEMT biasing integrated.
It uses a 50MHz reference oscillator here.

The large blobs connecting the IF from the downconverter to the MCL862 are hilariously large.
The middle DC pin is 1.8V supply to the LNB end of things.

The ports look mostly the same.
Except port 1.
Which has some additional LC-filtering on it.
I suspect it is the nominal control port, to which the FSK commands for the MXL862 get sent to.

The output then goes into a 3-port splitter, seen here in the middle and goes to the three output ports.

This MXL862 chip does the digital magic.
A "Full-Spectrum Capture ® Satellite Digital ODU IC"
The two LNB IF's just get digitized by it.
In full.
And then gets DAC'd back out to 950 MHz - 2150 MHz.

New day new LNB.
This time a Digital Channel Stacking (dCSS) one from Canal Digital.
It digitizes both polarizations and then puts the requested channel at the requested place in the down link.
Too bad the MaxLinear MXL862 has no public documentation.
A quick teardown thread

So very same.
Every time I have attempted to use ML stuff for hobby or professional stuff that is not coding.
It has been either fully or partly wrong, or comparable to 5minutes of searching.

Folks should at least be able to present theory for their claims, and failing that, simulations.

The scientific method hinges on presenting theoretical foundation for reproducible proof, and if you got neither, you're just regurgitating what a stochastic parrot fed you (vomited down your throat!)

God damn I dislike this slop so much.
Zero effort to even attempting to read it.
And I see folks sometimes reposting stuff with typos and duplicates or just straight up false stuff.

Green caps

age verification? i still feel like linux 2.6 is kinda new bsky.app/profile/jcog...

Tiny Tapeout demoscene competition winners will be announced! YouTube video by Zero To ASIC Course

Join us tomorrow at 19:00 CET for the announcement of the TT08 demoscene competition winners!

www.youtube.com/live/il_qKTi...

Another board from a module.
With some Sprague made 2N2219A.
7401 datecode.

ready for the next prototype
github.com/macaba/TheMa...

It's a TUV 2132,2 of a Nokia TU21000 series FM12/24-400 link.

Here's the bottom of that PCB.

Inside a plugin module from an Ancient Nokia radio link.

Aww yes.

The automotive use of these new steels is also why reparability is going down. As welding rusted out parts is no longer viable.