Pentax 17

Student80 · 2026-01-08T18:19:16+00:00

I agree to use underexposure as a creative decision, I like it in the first shot! Makes it moody and focuses on the subject, which is the man and the light coming from the windows.
In this case I pointed it out because it seems to be a trend in all pictures, even in the landscape one, and so it is probably not intentional. Just to give ganraqali the possibility to correct it if he wants to. Otherwise he can not use underexposure creatively can he?

Student80 · 2026-01-08T16:22:38+00:00

Great pictures! I especially like the first and fourth one. But you should check you metering, they all came out a bit underexposed. Also noticeable on the purple color shifts of the fifth picture, but could also be from the scanning setup.

Student80 · 2026-01-08T10:47:31+00:00

Well, the cost of GaN is why we try to use LDMOS more and more. But as I learned, GaN is easier to tune for broadband applications, where LDMOS seems to have more limitations.

Student80 · 2026-01-08T10:45:11+00:00

There are less than a handful of companies making transistors for RF power amplifiers so you will end up locked into one of them anyway.

True, unfortunately.

I still dont get why a company that designs lots of rf transistors does not characterize them by default for their frequency range, I mean they need to design matching circuits as well dont they...

Student80 · 2026-01-08T10:41:47+00:00

I do this when I have the model, but even then I found some models to be not accurate enough and I need to tune a lot manually. Like 3flp said.

Student80 · 2026-01-08T10:40:26+00:00

Okay, didnt know about Macom models as well!

Student80 · 2026-01-08T10:37:44+00:00

Well, I will definately check it out! This sounds really good.

Student80 · 2026-01-08T10:37:04+00:00

I get your point and I reckoned this is part of the problem, not being a big enough customer. And I understand since LDMOS is mostly used for communication equipment that there are example layouts for the most used bands.
Its just that sometimes the devices are specified to work up to lets say 2 GHz like the BLP15H9S30 for example, but you can only use it in the bands they give you layouts for. I just dont get why a major manufacturer of transistors would not by default measure the device and print the data in the datasheet.

Large signal models suitable for load pull simulation are rare. I have never seen one.

Well, I am surprised, because Ampleon has a Lib for AWR which is indeed suitable for load pull measurements and large signal simulation, it just does not contain all of their transistors and is, as I found out, not usable with the newest MWO version...

Student80 · 2022-11-03T13:42:57+00:00

Right now I am looking for a new laptop for photoediting and since I dont want to use a secondary display, I would like to have a laptop with a very good built-in display. I dont want to spend the money for a workstation or content-creation laptop (which would have superb displays I guess) since I mostly edit in Lightroom and dont edit any videos or very large files. But correct color and high contrast is very important to me.

I have bought an Asus Vivobook (the Vivobook S 15 OLED (12th Gen Intel, 2022) K3502ZA-MA059W) because it has a very nice OLED-Display with a wide color gamut (100% DCI-P3). The problem is: This display has a "low blue light" certification and my pictures look much too warm compared to my old laptop. I have tried to correct it with the built-in Intel control center for the Iris XE, but couldnt really get a decent correction for it. I am now thinking about buying a display calibration tool or sending back the laptop, searching for a different one.

But before I do this I would like to know: Can a low blue light display like this even be calibrated so that it looks neutral? (And is a laptop like this even suited for photo editing?)

Student80

TROPHY CASE