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MPX and frequency correction

 
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MPX and frequency correction
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maxmaxxed
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Joined: 29 Apr 2013
Posts: 7

Post MPX and frequency correction Reply with quote
I'd like to feed an externally generated mpx signal into my PCI MAX 3000. Can someone please recommend the best point? Ideally I'd like the option of keeping the internal RDS encoder.

I notice my unit is about 3 Khz low in frequency. What is the recommended approach to allowing the frequency to be trimmed?

Thanks,

Max.
Mon Apr 29, 2013 6:39 pm View user's profile Send private message
pcs
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Joined: 18 Jan 2002
Posts: 3063
Location: Radio Land

Post Reply with quote
If you have PCIMAX3000 in front of you, look at the 9 pins for RDS daughter board.

The bottom 3 pins:

1. bottom pin, is MPXin
2. GND
3. 19KHz


You don't have to worry about 3 kHz, this is like parking a tanker and worrying about millimetres. The difference does not affect range nor is it audible or measurable at the receiver.

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Mon Apr 29, 2013 11:46 pm View user's profile Send private message Visit poster's website
maxmaxxed
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Joined: 29 Apr 2013
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Post Reply with quote
Thanks Marko.
Wed May 15, 2013 6:01 pm View user's profile Send private message
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