question of use

I am curious, those 50 ohm terminators that Radio Shack sells/sold - for
terminating a computer under installation or repair - are they "really" of
any value? Does "anyone" use them?
I have probably close to half a dozen or more of them - new and I have no
use for them. Although, I've not looked at them up close as yet and am
wondering - if they "might" be usable at least for a low power dummy load
for a Ham Radio H.T. IF so, I "might" keep one or two....... So I guess I'm
asking too, what if any uses other than the intended use - has anyone ever
used these?
Thanks
Reply to
clfe
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50 ohm terminators for ??computers?? No way, unless there is a coax ethernet adaptor card.
Reply to
Robert Baer
I'll look again, but I'd swear thats what the package said........... It is a small BNC with a sealed cap on it. RS sells/sold them.
Reply to
clfe
You have never seen a network built that way? You use a tee connector at every network card and a 50 ohm terminator at each end of the network. There is no hub involved, and conflicts are handled by multiple retries. It predates Cat 3 and Cat 5, but some networks still use RG58 Thin Net.
As far as the terminators go, they can be used with test equipment, but are only certified to 10 MHz for network use. Some are a lot better than that, but some are real crap. It depends on the design and who put them together. They are usually built with a 1/4 W resistor for network use.
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Reply to
Michael A. Terrell
These were commonly used on Co-ax networks. You hardly see them used since the introduction of Ethernet. If memory serves placing the cap on the bnc connector on the computer directly is a way to tell the computer that its not physically attatched to the network.. which would speed up operation of the computer as it wont constantly be trying to see whats out there on the network. Then again, it can also serve as a dust cap.
Mark
Reply to
Mark Fortune
I have used lots of them for ethernet over 50 ohm coax termination
Reply to
Sjouke Burry
I'm not into that and as I said in a prior post, came across a handful - just trying to figure out alternate uses if any.
Reply to
clfe
Yes, a BNC with a sealed cap could be either a 50 ohm terminator or a 75 ohm terminator. But. Not used on PCs except for coax ethernet cards.
Reply to
Robert Baer
On Thu, 20 Jul 2006 15:46:03 +0100 Mark Fortune wrote in Message id: :
[...]
Actually, it's a terminator for the computer that sits at the end of the Arcnet network cable.
Reply to
JW
Arcnet isn't 50 ohms.
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Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
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Reply to
Michael A. Terrell

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