[137015] in North American Network Operators' Group
Re: US Warships jamming Lebanon Internet
daemon@ATHENA.MIT.EDU (George Herbert)
Mon Feb 7 18:43:31 2011
In-Reply-To: <86DC8395-2588-445C-AF78-CDB0605FFA56@deadfrog.net>
Date: Mon, 7 Feb 2011 15:42:42 -0800
From: George Herbert <george.herbert@gmail.com>
To: Ryan Wilkins <ryan@deadfrog.net>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Mon, Feb 7, 2011 at 2:23 PM, Ryan Wilkins <ryan@deadfrog.net> wrote:
>
> On Feb 7, 2011, at 4:06 PM, Michael Painter wrote:
>>
>> Hi Denys
>> I doubt it's intentional jamming since I've had the same problem.
>> Aegis radar is very high power in full radiate mode and as such creates =
problems for Low Noise Amplifiers listening at 3.4-4.2 GHz.
>> Someone needs to talk to Microwave Filter Company.
>> http://www.microwavefilter.com/c-band_radar_elimination.htm
>>
>> --Michael
>
> +1 for Microwave Filter. =A0They've helped me out in a couples jams befor=
e. =A0They're very responsive and the products are good, too.
I think people in San Diego and near Norfolk, VA have the same problems.
The C-band frequencies are 2x those of the S-band (4-8 GHz for C, 2-4
GHz for S); if the SPY-1 / SPY-1D radar is frequency hopping it may
well step on someone's C-band links at twice the radar's basic
frequency. Just need a filter to remove actual S-band frequencies
from C-band feeds.
--=20
-george william herbert
george.herbert@gmail.com
