NTP question

Thu May 2 00:12:55 UTC 2019

Anyone know of a solution that doesn't require an external antenna, is NEBS compliant, and has T1-type outputs for me to hook into my Metaswitch gear? 

----- 
Mike Hammett 
Intelligent Computing Solutions 
http://www.ics-il.com 

Midwest-IX 
http://www.midwest-ix.com 

----- Original Message -----

From: "Alejandro Acosta" <alejandroacostaalamo at gmail.com> 
To: nanog at nanog.org 
Sent: Wednesday, May 1, 2019 5:41:36 PM 
Subject: Re: NTP question 

Hello, 
As other have commented before, it looks you need an outdoor antenna, however, reading the specs it says: 

"The built in high sensitivity GPS receiver is able to lock multiple satellites from within multiple buildings or from a window location , eliminating the requirement that an outdoor antenna be installed ." 

Weird. 

Alejandro, 

El 1/5/19 a las 15:22, Mehmet Akcin escribió: 

hey there Nanog, 

I am trying to buy a GPS based NTP server like this one 

https://timemachinescorp.com/product/gps-time-server-tm1000a/ 

but I will be placing this inside a data center, do these need an actual view of a sky to be able to get signal or will they work fine inside a data center building? if you have any other hardware requirements to be able to provide stable time service for hundreds of customers, please let me know. 

mehmet 

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