On Thu,12/8/2016 11:37 PM, Edward R Cole wrote:
Jim,
OK that is reassuring. I will probably run it via cat5e cable and
install my own RJ45 connectors so it can be custom length (and
probably cheaper). My guess it will be better on crosstalk than
commercially made ethernet cables.
CAT5 and other structured cables are great for this purpose BECAUSE they
consist of four high quality twisted pairs. To minimize crosstalk
between those pairs, each pair is twisted at a different rate (turns per
inch). When using these cables to carry signals, it is absolutely
critical that we use one of these pairs to carry our signal (and
multiple pairs to carry multiple signals).
Answer to those who question my adversion to wireless: My guess you
do not do ham radio on the same frequency band as wi-fi runs. I do and
its seems crazy to intentionally broadcast RFI on my ham band. I
operate up to 10-GHz.
In any given system, WiFi transmits on only one of many standard carrier
frequencies, and it doesn't run much power. I don't work 2.4 GHz, but
I'll bet that like other ham bands, our use for CW, SSB, and other DXing
modes is limited to a narrow range of the band, just as it is on 440
MHz. I wouldn't give up on that system simply because it's in the same
band unless the WiFi gear is dirty. Have you observed that it is? If
so, that is, indeed, a good reason to avoid it.
73, Jim K9YC
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