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I did a search before I asked this question but I did not come up with much other than it made a major difference in PQ. Can someone tell me what it is all about and where it can be done. Thanks.
Mike Parker Mod...? What is it...?
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Richard_P_Harvey,
Every video card has filters for RF built onto the boards by regulation. The manufacturers are not required to use filters of any great quality, so they get by with inexpensive solutions that often result in video noise. Some have compared the noise to a sort of haze over the image.
Mike Parker removed the filters and created a powered circuit with better quality filter chips placed in strategic locations and applied it to various video cards along with BNC connectors. The end result was an improved PQ,"the haze was removed" and the viewer gained more clarity and punch from the image. The video stream also becomes a true "tested" 75 Ohm from end to end.
You can purchase a video card with the MOD from any of the dealers on his site.
http://www.wisdom-technologies.com/buy.htm
I hope this answers some of your questions. I have been a beta tester and happy customer of this great mod.
DIZ2
Every video card has filters for RF built onto the boards by regulation. The manufacturers are not required to use filters of any great quality, so they get by with inexpensive solutions that often result in video noise. Some have compared the noise to a sort of haze over the image.
Mike Parker removed the filters and created a powered circuit with better quality filter chips placed in strategic locations and applied it to various video cards along with BNC connectors. The end result was an improved PQ,"the haze was removed" and the viewer gained more clarity and punch from the image. The video stream also becomes a true "tested" 75 Ohm from end to end.
You can purchase a video card with the MOD from any of the dealers on his site.
http://www.wisdom-technologies.com/buy.htm
I hope this answers some of your questions. I have been a beta tester and happy customer of this great mod.
DIZ2
From Alan's post in the "AVS Forum Power Buys and Special Items" section
The MP-1 mod is a high bandwidth RGB true 75 ohm line driver and filter circuit. It has a dual output that will allow two different output voltages. The voltage level for each of the three driver stages can be selected by using three mini jumpers that are attached on the mod circuit. Removing the jumpers will put the mod in the unity gain state
(0.7Vpp in - 0.7Vpp out). With the jumpers on, the output level should be 0.76 to 0.79 Vpp output, with a 0.7 Vpp input. The circuits filtering should produce a cleaner desktop, with tighter lines and text. There should also be an improvement in black detail, providing an improvement in image quality and much better color rendering. Much of this is accomplished from a very unique filtering process, that’s also supported by a mini isolated switching power supply. In order to truly reap the stated benefits, the MP-1 must have complimentary true 75 ohm high bandwidth cables and associated switchers (if used).
I believe that main benifit is for CRT projectors. Mike is/was to be building another version for the other types of projectors.
The MP-1 mod is a high bandwidth RGB true 75 ohm line driver and filter circuit. It has a dual output that will allow two different output voltages. The voltage level for each of the three driver stages can be selected by using three mini jumpers that are attached on the mod circuit. Removing the jumpers will put the mod in the unity gain state
(0.7Vpp in - 0.7Vpp out). With the jumpers on, the output level should be 0.76 to 0.79 Vpp output, with a 0.7 Vpp input. The circuits filtering should produce a cleaner desktop, with tighter lines and text. There should also be an improvement in black detail, providing an improvement in image quality and much better color rendering. Much of this is accomplished from a very unique filtering process, that’s also supported by a mini isolated switching power supply. In order to truly reap the stated benefits, the MP-1 must have complimentary true 75 ohm high bandwidth cables and associated switchers (if used).
I believe that main benifit is for CRT projectors. Mike is/was to be building another version for the other types of projectors.
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