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Vonage As I'm sure most of us have, I have a respectable collection of assorted cables
As I'm sure most of us have, I have a respectable collection of assorted cables that have piled up in a drawer over the years. I was looking for a short piece to connect two phase splitters in order to connect two TV's when I noticed that the newer cables were distinctly different from the old.
The old cables, RG75 if I remember correctly, were thinner than the new cables. They were also shielded with cheap copper braiding and had a sloppy connector. A plain old coaxial cable for sure. I had a roll of the newer cable for comparison. Thick, nonflexible and expensive connectors. The shielding proved to be something special. A solid stainless metal was wrapped around the inner insulator. It was fixed to the insulator with some sort of adhesive. The distance from the center conductor to the shielding was perfectly uniform throughout the length of cable.
I did microwave work years ago when I was a younger man. It seemed likely that what I had been examining was in fact a circular waveguide. I don't remember when Comcast had switched to this type of device. I assume the cable came in when the data rates went up. Impressive to say the least.
I think I'll be taking much better care of these cables from now on. Don't step on it, no crimps or sharp bends. I don't know enough about what goes through these cables. What are the standing wave ratios? How does a standing wave affect data rate, voltage, and rise times? Then again maybe it doesn't matter at all, or is a poor cable the root of some of the Broadband Router problems that some experience?
Read The Full Thread: Coaxial Cable or Circular Waveguide
• While I was still active in the amateur radio field we used Belden 9913 cable. That
• Ah! Amateur radio. I was once WB1AUJ. General class license. I can't remember
mbhn5204 posted "As I'm sure most of us have, I have a respectable collection of assorted cables" on 02/05/2005 |
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