-Original Message-
From: time-nuts On Behalf Of Dana Whitlow
Sent: Friday, December 6, 2019 10:10 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] USB over optical fiber
Even without any funny business with boost converters (or whatever). those
On 12/6/19 9:10 AM, Dana Whitlow wrote:
Even without any funny business with boost converters (or whatever). those
copper wires
make a nice antenna for coupling noise from both ends (PC and USB
accessory) into
the environment inside the chamber. Unless, of course, the cable is
well-shielded,
-417-1345 x110
email: david.vanh...@backcountryaccess.com
-Original Message-
From: time-nuts On Behalf Of Dana Whitlow
Sent: Friday, December 6, 2019 10:10 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] USB over optical fiber
Even without any funny
ess.com
>
> -Original Message-
> From: Scott McGrath
> Sent: Friday, December 6, 2019 6:29 AM
> To: David Van Horn
> Cc: Discussion of precise time and frequency measurement <
> time-nuts@lists.febo.com>
> Subject: Re: [time-nuts] USB over optical fiber
>
...@backcountryaccess.com
-Original Message-
From: Scott McGrath
Sent: Friday, December 6, 2019 6:29 AM
To: David Van Horn
Cc: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] USB over optical fiber
Wow, cost cutting at work I have the corning one but its 3
McGrath ; Discussion of precise time and
frequency measurement
Cc: David Van Horn
Subject: Re: [time-nuts] USB over optical fiber
Ok, thanks for the info. My unit should be arriving today or tomorrow.
--
David VanHorn
Lead Hardware Engineer
Backcountry Access, Inc.
2820 Wilderness Pl, Unit H
ecise time and frequency measurement
Subject: Re: [time-nuts] USB over optical fiber
Wow, cost cutting at work I have the corning one but its 3 years old Remember
when FCC certification meant something for EMC
> On Dec 6, 2019, at 3:21 PM, David Van Horn
> wrote:
>
Well, it arriv
-Original Message-
From: Scott McGrath
Sent: Wednesday, December 4, 2019 9:16 PM
To: Discussion of precise time and frequency measurement
Cc: David Van Horn
Subject: Re: [time-nuts] USB over optical fiber
You may still have a problem, That said most of your noise power is going to
come from
McGrath
Sent: Wednesday, December 4, 2019 9:16 PM
To: Discussion of precise time and frequency measurement
Cc: David Van Horn
Subject: Re: [time-nuts] USB over optical fiber
You may still have a problem, That said most of your noise power is going to
come from your USB device itself
Re: [time-nuts] USB over optical fiber
Its not so much the noise from the interface its the USB device itself i’d
worry about as USB 3.0 generates RF signals up to 3 GHz. And also has fairly
strong signals in the 2.4 GHz ISM band.
Content by Scott
Typos by Siri
> On Dec 4, 2019, at 12:07 A
I'm not too worried up there, my receivers are working at 457 kHz.
-Original Message-
From: Scott McGrath
Sent: Wednesday, December 4, 2019 12:14 AM
To: Discussion of precise time and frequency measurement
Cc: David Van Horn
Subject: Re: [time-nuts] USB over optical fiber
Its
Its not so much the noise from the interface its the USB device itself i’d
worry about as USB 3.0 generates RF signals up to 3 GHz. And also has fairly
strong signals in the 2.4 GHz ISM band.
Content by Scott
Typos by Siri
> On Dec 4, 2019, at 12:07 AM, David Van Horn via time-nuts
>
I suppose this is vaguely time-nutty.
I have an application where I need to take USB into an EMC faraday cage.
I see a number of optical fiber implementations available, and the prices
($200-300) are acceptable, but I’m worried about noise that the downstream end
may cause, since it will need
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