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PCI MAX Ultra Question
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Sir Nigel
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Post PCI MAX Ultra Question Reply with quote
I just wanted to know. Does the PCI MAX Ultra have already have preemphasis on? If so, how much?

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Fri Nov 28, 2003 11:06 pm View user's profile Send private message Visit poster's website
Sir Nigel
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This is very simple. I just need to know if it applies preemphasis. So therefore, I live in the US. All radios use 75µs de-emphasis.

Am I not clear enough?

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Mon Dec 01, 2003 3:11 am View user's profile Send private message Visit poster's website
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Post Reply with quote
Yep, it has preemphasis. If you can use external preemphasis, like
the one provided by sound solution, it is a good idea do disable PCI MAX
preemphasis and use the software preemphasis.

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Mon Dec 01, 2003 1:15 pm View user's profile Send private message Visit poster's website
Sir Nigel
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Post Reply with quote
Where do I turn it on/off? PCI MAX software? Jumper cable?

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Mon Dec 01, 2003 5:48 pm View user's profile Send private message Visit poster's website
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Post Reply with quote
There are two capacitors on the small board, carrying the audio
connectors. Remove those two capacitors.

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Marko - PCS Electronics
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Mon Dec 01, 2003 6:28 pm View user's profile Send private message Visit poster's website
Sir Nigel
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Post Reply with quote
So if I don't remove them. What is it set to? The UK standard or the US standard.

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Mon Dec 01, 2003 6:45 pm View user's profile Send private message Visit poster's website
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Its somewhere in between, around 66

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Marko - PCS Electronics
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Mon Dec 01, 2003 6:54 pm View user's profile Send private message Visit poster's website
Sir Nigel
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Post Reply with quote
Thanks. Now I know.

I recomend you explain this a little better on your site.

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Mon Dec 01, 2003 6:59 pm View user's profile Send private message Visit poster's website
Sir Nigel
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Post Reply with quote
Another question.

Does the PCI MAX have a "clipper" in it? This is used to prevent overmodulation.

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Tue Dec 16, 2003 3:35 am View user's profile Send private message Visit poster's website
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Post Reply with quote
No, but winamp plugins do.

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Marko - PCS Electronics
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Tue Dec 16, 2003 1:16 pm View user's profile Send private message Visit poster's website
Sir Nigel
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Post Reply with quote
That's what I though. I use that MLB4 v5 software. The only problem is dealing with pre-emphasis. You can't drive the final limiter too much or else your "s"es become very distorted.

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Wed Dec 17, 2003 1:39 am View user's profile Send private message Visit poster's website
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