Question on passthrough screen modes

[Erik Persson]

Hi,

I hava a growing collection of various Amigas and Atari STs which I previously have used either with a 15 kHz monitor or with deinterlacer solutions like the Indivision AGA.  Since I don’t have expensive deinterlacers for all systems and I would ideally also want to reduce clutter on my desk by only having my 4k HDMI capable monitor, some kind of scandoubler and optionally deinterlacing solution like the OSSC* or Retrotink seems like a nice thing to have.

In addition to the 15 kHz class of boxes I also have some other 80’s and 90’s vintage stuff with analog out but which have slightly non-standard resolutions and frequencies, such as Mac which wants to run at 1150×870 at 75 Hz and a Sun Ultra which ideally wants 1280×1024 at 67 or 76 Hz.  The question is:  Can the OSSC (or pro version) digitize any signal (without any other fancy processing) as long as it is within bandwidth limits?  Or is is limited to a list of screen modes such as the ones in https://github.com/marqs85/ossc/blob/release/software/sys_controller/tvp7002/video_modes.h ?  Of course, it strictly doesn’t have to do any mode as long as it can digitize the aforementioned Mac and Sun modes.

I am of course aware that I will still need a monitor that supports the modes.

If the OSSC* boxes cannot do this, does any of the other alternatives out there like the RetroTink 5x or 4k or Medusa accomplish this?

Thank you for your time,
/Erik

[marqs]

Both OSSC Classic and Pro can digitize and passthru any valid signal up to their bandwidth limit, but you may need to manually set sampling parameters if they are not included in the preset list. The preset list for Pro can be viewed here.

[Erik Persson]

Thanks.  Now I just need to decide which one to get. 🙂

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