[ANSS-netops] DC powered VSAT

[Ellie Boyce]

ATA built some custom DC-DC converters for the Hughes 7000 modems. They seem reliable and don’t shut down at sub-zero temps like the ones UNAVCO sourced from Hughes(?). No idea how they’d work in the heat. You could ask IRIS-ATA folks for specs. 



> On Feb 8, 2020, at 09:05, Doug Neuhauser <doug at seismo.berkeley.edu> wrote:
> 
> 
> We (BSL) have largely abandoned our DC/DC converters and are now running
> our VSATs on AC directly or using commercial inverters because
> our DC/DC converter systems kept dying.  This is probably a
> statement about our DC/DC converter systems...
> 
> - Doug N
> 
>> On 2/8/20 6:29 AM, Stickney, Mike wrote:
>> We are operating a HughsNet VSAT with a solar system in NW Montana.
>> Greg Steiner, at VLF Designs, developed an efficient and reliable
>> dc-dc converter for this installation. You might check with Greg.
>> -Mike
>> Michael Stickney, Director
>> Earthquake Studies Office
>> Montana Bureau of Mines and Geology
>> Montana Technological University
>> 1300 W Park St
>> Butte, MT 59701
>> (406) 496-4332  Voice
>> (406) 496-4451  Fax
>> mstickney at mtech.edu <mailto:mstickney at mtech.edu>
>> https://www.mbmg.mtech.edu/research/equake/studies.asp <http://www.mbmg.mtech.edu/research/equake/studies.asp>__
>> *From:*ANSS-netops <anss-netops-bounces at geohazards.usgs.gov> *On Behalf Of *Juan B Lugo Toro
>> *Sent:* Saturday, February 8, 2020 7:08 AM
>> *To:* Krueger, John P <jkrueger at usgs.gov>
>> *Cc:* anss-netops at geohazards.usgs.gov
>> *Subject:* Re: [ANSS-netops] DC powered VSAT
>> Hello
>> At PRSN I was using for a long time a dc to dc converter from Hughes. It has a good reliability and it is sealed, good for the field. It is configured for the HN7000.  I am attaching a picture of this unit. Let me know if you can open the jpg file.
>> I hope this helps.
>> Regards
>> Juan Lugo
>> On Fri, Feb 7, 2020 at 8:38 PM Krueger, John P <jkrueger at usgs.gov <mailto:jkrueger at usgs.gov>> wrote:
>>    Hello Geohazards Community,
>>    Is anyone out there operating a VSAT on a DC system?  Preferably one that is efficient enough to be powered on a solar/battery system, and can support continuous real-time telemetry.
>>    Any info would be awesome.  Thanks.
>>    Have a great weekend,
>>    John
> 
> 
> -- 
> ------------------------------------------------------------------------
> Doug Neuhauser                  University of California, Berkeley
> doug at seismo.berkeley.edu        Berkeley Seismological Laboratory
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