Hi all.
This is likely the effort that I remember hearing about!
Thanks, Dan etal.
I would like to see the PDF of this.
John
> Here at the VLA site We have been working on reducing emissions
> from LCD monitors for almost 5 years now and have tried various
> schemes. We believe we have a fairly good method now to provide
> the attenuation we need for most areas of the VLA site. Our
> requirements only attenuate by 30 dB for F<3 GHz. If someone out
> there needs 60 dB as I note in the email trail, our method wouldn't
> help.
>
> We have several detailed documents on how the conversion is made.
> I can email a .pdf copy to anyone interested.
> -Mert
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> From the clear, high deserts of central New Mexico, The Land of
> Enchantment, the VLA, and dark, dark, starry, starry nights;
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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> >>>> One Spectrum <<<< >>>> One Universe <<<<
> Daniel J. ("Mert") Mertely
> National Radio Astronomy Observatory
> Interference Protection Office Engineer
> P.O. Box o
> Socorro, NM 87801
> (575) 835-7128
> dmert...@nrao.edu
> nrao-...@nrao.edu
>
>
> On 10/22/2015 9:41 AM, jjackson wrote:
>> John/Jason,
>>
>> Dan Mertely here at NRAO in New Mexico has come up with a method of
>> shielding several models of Dell flat panel monitors. He has a coop
>> currently modifying many dozens of them for use at the VLA site. These
>> have been tested in our RFI chamber and many are already in use at the
>> VLA.
>>
>> Dan can be reached at dmert...@nrao.edu or by phone at (575) 835-7128
>>
>> Cheers,
>> Jim
>>
>> Jim Jackson
>> Project/Lead Hardware Engineer
>> Very Large Array(VLA) / Very Long Baseline Array(VLBA) radio telescopes
>> National Radio Astronomy Observatory
>> 1003 Lopezville Rd.
>> P.O. Box O
>> Socorro, NM 87801
>> (575) 835-7132 (W)
>> (575) 835-0158 (H)
>> jjack...@aoc.nrao.edu
>>
>> On 10/22/2015 3:56 AM, Jason Manley wrote:
>>> I'm certainly interested in hearing about this, too. The scanning
>>> frequencies of LCDs are quite bad.
>>>
>>> But I haven't found shielded glass that does much more than 60dB, so
>>> we just put them in big rabbit cages, which gives about the same RF
>>> performance for a fraction of the cost. If you only need a bit of
>>> shielding in one direction, then a simple L-plate is quite effective.
>>>
>>> Jason
>>>
>>>
>>> On 22 Oct 2015, at 11:08, John Ford <jf...@nrao.edu> wrote:
>>>
>>>> Hi all. Recently (sometime in the last year!) I recall hearing about
>>>> someone who had successfully shielded flat panel monitors. Does
>>>> anyone
>>>> here know about this?
>>>>
>>>> Thanks, and sorry if this is noise... :)
>>>>
>>>> John
>>>>
>>>>
>>>>
>>>
>>>
>
