NMEA Ampifier

[AlexL]

Responding to some requests and thanks to the kind web hosting of another foromite my circuit diagram for the NMEA splitter / amp / expander is here:

http://home.btconnect.com/jeff.penfold/Alex_Lyne/NMEA_amp.pdf

Please note that you build this at your own risk (keeps the lawyers happy if I say that!)

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[kenb]

Thank you very much! It is exactly what I was looking for.
Thanks again.

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[isandell]

There's an article in this months PBO about multiple NMEA outputs. Apparently Simrad do a nice unit for a shade over two hundred pounds - plus VAT.

Absolutely scandalous - unless it does something very clever. I thought Raymarine prices were bad enough.

Ian

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[claudio]

Just a note if you're thinking of building the NMEA buffer, the Receiver chip is incorrectly marked as SN75179, all 5 devices should be SN75176B. THe Maplin part number is correct however.

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[tonykerry]

Alex, What size box do I need for the finished unit please?

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[steverow]

Excellent, I could do with one of these.
I'll build one and let you know how it works.

Cheers

Steve.

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[AlexL]

oops - absolutely correct - I'll try and get the file changed - but as you pointed out the SN75176B is the correct IC

Re Box size the best plan is to layout the circuit on a piece of stripboard - build it and then see what size box you need. I got mine into a box from maplins which was about 4" * 3" * 1"

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[rrees]

Thanks for that Alex
Has anyone draw up the layout for the strip board
Sorry very busy at moment and this would help greatly in the build phase

Richard

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[Aeolus_IV]

Have now posted updated document for Alex. Sorry for the delay, some sailing got in the way (as well as the traffic on the M25).

Regards, Jeff.

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