[TowerTalk] LMR-400 LMR-600 Equivalent (and stuff)
Jim Brown
jim at audiosystemsgroup.com
Tue Jun 3 12:42:59 EDT 2008
On Tue, 3 Jun 2008 09:21:36 -0700, Marlon K. Schafer \(509\) 982-2181
wrote:
>"kinking" cat 5 doesn't hurt anything unless you mess up the insulation in
>the process.
WRONG! Ethernet traffic is broadband data, with components well into the
tens of MHz. CAT5 cable is four parallel transmission lines with twist
ratios that are offset from each other to minimize crosstalk from one pair
to another. Kinking puts discontinuities in the cable, which can degrade
the data waveform. It can also degrade noise immunity and crosstalk, and
increase leakage from the cable (to your radio). You may not notice the
data degradation, because Ethernet includes error correction and re-sends
when data is corrupted. The effect is slower data exchange.
73,
Jim Brown K9YC
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