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Re: internet outages



On Sunday, December 23, 2018 04:24:58 PM David Christensen wrote:
> > Wow, for $80 I would have expected something that would measure dB loss
> > and maybe even a time domain reflectometer (well, maybe not that).
> 
> Please provide a URL for such test instrument(s).

Oh, I misread that, I thought you wanted a URL for the under $10 device.  Try 
googling for time domain reflectometer, I don't think you'll find one for even 
near $80 (but I'd love to be wrong) -- maybe a cable loss tester at that 
price.

Some URLs for under $10 testers (prices have changed ;-)  (Prices are a little 
over $3)

   * [[https://www.ebay.com/itm/Pocket-LED-Ethernet-4-Port-RJ45-RJ11-Cat5-
Network-LAN-Cable-Tester-Keychain-
G6Z5/253214577684?epid=675204148&hash=item3af4c3d414:g:EIsAAOSwuLZY3IhA:rk:1:pf:0]]

From a review of that one:

<quote>
Excellent cable tester!

Plug in both ends and watch for the lights. It's as easy as that. Great for 
testing Ethernet cables to rule them out as the issue.
Requires 1x 9v battery.
</quote>

   * [[https://www.ebay.com/itm/WZ-468-RJ45-Ethernet-Network-RJ11-Cable-
Tester-Crimper-Punch-Down-Tool-Kit-
red/183476025283?epid=20024613296&hash=item2ab805f7c3:g:n0IAAOSw2JxboQgU:rk:2:pf:0]]




> 
> 
> One other point -- MRSP is not the same a street price:
> 
> https://www.homedepot.com/p/Ideal-LinkMaster-UTP-STP-Wiremapper-and-Tester-
> 62-200/100091453
> 
> > I have seen those continuity type testers on ebay for under $10 (the test
> > sets with two devices, both with RJ-45 jacks, you plug the ends of the
> > cable into those (one at each end of the cable), and then the "master
> > device" tells you whether the pairs are connected properly and there is
> > continuity).
> 
> I am sure there are cheap clones and/or counterfeits of the LinkMaster
> available.  I prefer genuine, reputable brands.
> 
> 
> David


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