[Public-list] While on the topic of wiring ....

[Jack Vanderloo]

Kris,
I'll take the response off-line, as it's obvious there aren't that many 
A30ers with radar issues and even less with Garmin issues.
Jack


Kris Coward wrote:

>On Tue, May 15, 2007 at 02:43:32PM -0400, Jack Vanderloo wrote:
>  
>
>>John, Kris and Jim,
>>
>>Thanks for the collective advice.  The reason I approached the group for 
>>possible practical experience was that Garmin had not replied to an 
>>email sent 4 days prior.
>>
>>Their response, just received:
>>
>>"Yes you can cut and splice the cables for this unit.  I have verified
>>this with my supervisor and we have tried it here.  I am unsure why the
>>manual tells you otherwise."
>>
>>Note there is no advice on shielding, soldering, etc.  Before one assumes I have the first clue about "shielding," or maintaining the integrity thereof - I don't.
>>
>>So my question to Kris would be - is there a substantive difference between an "IT" data cable and that which would make up, and affect the treatment of, a "radar" data cable?
>>    
>>
>
>Well there are a few different categories of IT cable, depending on how
>high frequency a signal you can run over it reasonably reliably (and
>therefore how many bits can be shoved across it). Additionally, there
>are different ratings for how fireproof the cable is (in case you decide
>that it's so much more convenient to run your data cables through your
>ducts that you're willing to pay ~3x as much for them). The coax cable
>tends to be either pretty thin (and pretty rare these days) or quite
>thick (and even rarer). Twisted pair cable tends to contain 24 gauge
>wires, though it can be as thick as 22 gauge.
>
>Depending on what sort of signal is passing over the radar cable, where
>it can be safely run, and how "marine" it's expected to be, you may find
>that computer data cabling might not cut it, or more likely that it's
>serious overkill.
>
>Cheers,
>Kris
>#583 Candy Cane
>
>  
>

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