[AFMUG] ***SPAM*** Re: ***SPAM*** interesting...we installed several laser links in the 1990s...

Mon, 20 Sep 2021 14:31:39 -0700

Obviously a nigerian prince on one side trying to get the $$ back to the rightful owners.. 

On 9/20/21 1:16 PM, Nate Burke wrote:
So 700TB over 20 Days, that's about 4gb/s average.  I wonder what these are feeding on each end, that that amount of traffic suddenly turned on, or if it's literally extending an ISP on each end.  Or is this just test traffic. 

On 9/20/2021 3:03 PM, Mathew Howard wrote:

Yeah... other than potentially being capable of more bandwidth, and 
maybe getting around some regulations, I can't imagine what advantage 
there would be.



On Mon, Sep 20, 2021 at 2:41 PM Adam Moffett <[email protected] 
<mailto:[email protected]>> wrote:


    There's a whiz-bang-wow factor for free space optics. I'm not
    sure if there's any real technical advantage over millimeter wave
    though.  None that I'm currently aware of.

    -Adam


    On 9/20/2021 12:12 PM, Mathew Howard wrote:

    Seems to me like you're almost always going to be a lot better
    off just using 80ghz (or even 60ghz, depending on
    requirements)... I guess if you need more than 10Gbps it might
    make sense, but otherwise, it seems like playing with this stuff
    is just going to cause a lot of unnecessary headaches.

    On Mon, Sep 20, 2021 at 10:13 AM Steve Jones
    <[email protected] <mailto:[email protected]>>
    wrote:

        I hope its come along way. we did some and it was awful.
        auto alignment had to be turned of because it would
        sometimes just start adjusting and go out of alignment like
        it was having a seizure. lens fogging was awful. We had one
        where it would take a courthouse down roughly the same time
        every day, finally tracked it to sun reflection off an
        aluminum parapet. i had to haul a truck tarp up onto the
        roof to cover the parapet to prove it. The only place for
        lasers is in flexible glass

        On Mon, Sep 20, 2021 at 9:16 AM Jaime Solorza
        <[email protected]> wrote:

            Yep...they tried one from a bank building in El Paso to
            Juarez back in the late 1990s...22 story building moved
            too much...we ended up installing a 23Ghz link but from
            another location.

            On Mon, Sep 20, 2021, 6:24 AM Brian Webster
            <[email protected]> wrote:

                I would think now it would be easier to mount the
                laser in a gyro stabilized gimbal to account for the
                movement. In the 90’s that technology was not
                affordable. Image stabilizing cameras exist, gyro
                stabilized RC helicopters and drones are commonplace.

                Thank you,

                Brian Webster

                www.wirelessmapping.com

                *From:*AF [mailto:[email protected]] *On
                Behalf Of *Chuck McCown via AF
                *Sent:* Friday, September 17, 2021 8:16 PM
                *To:* AnimalFarm Microwave Users Group
                *Cc:* Chuck McCown
                *Subject:* Re: [AFMUG] ***SPAM*** interesting...we
                installed several laser links in the 1990s...

                I did too. Mexico City.  E1 data rate.  High rise
                buildings.  Building movement was a problem.

                Sent from my iPhone



                On Sep 17, 2021, at 5:12 PM, Jaime Solorza
                <[email protected]> wrote:

                    

                    
https://news.google.com/articles/CBMicGh0dHBzOi8vYXJzdGVjaG5pY2EuY29tL2dhZGdldHMvMjAyMS8wOS9hbHBoYWJldHMtbGFzZXItaW50ZXJuZXQtc3lzdGVtLWhhcy1zZW50LTcwMHRiLW9mLWRhdGEtd2l0aC05OS05LXVwdGltZS_SAXZodHRwczovL2Fyc3RlY2huaWNhLmNvbS9nYWRnZXRzLzIwMjEvMDkvYWxwaGFiZXRzLWxhc2VyLWludGVybmV0LXN5c3RlbS1oYXMtc2VudC03MDB0Yi1vZi1kYXRhLXdpdGgtOTktOS11cHRpbWUvP2FtcD0x?hl=en-US&gl=US&ceid=US%3Aen



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