[Alexandria Radio Club Reflector] Use of 1.2Ghz and FAA new systems

[Dennis J Wilson]

FYI

http://www.raytheon.com/capabilities/products/tssc4/history/index.html

http://www.arrl.org/news/amateurs-must-protect-new-radars-in-23-cm-band



Dennis J. Wilson
Sr. Systems Engineer II
Raytheon, IIS, Washington Operations
1235 S. Clark St., Ste 800
Arlington, VA      22202
703.413.5321 (Office)
571.236.3481 (Cell)
703.413.8033 (Fax)
djw at raytheon.com



From:   <ka4gfy at cox.net>
To:     Ian <ik7565 at verizon.net>, AlexandriaRadioClub at mailman.qth.net
Date:   04/23/2012 12:51 PM
Subject:        Re: [Alexandria Radio Club Reflector] Use of 1.2Ghz and 
FAA new systems
Sent by:        alexandriaradioclub-bounces at mailman.qth.net



I was reading on radio club websites on the West Coast where some of those 
23 cm repeaters have had to move.  Fortunately, there is enough space up 
there to accomodate a repeater moving.

I have not been able to locate any licenses for radars in our area, yet. 
However, I have heard something on our analog repeater output frequency. 
It sounds like something sweeping by with a definate pattern to it.  My 
guess is its a radar, but I can't figure where its coming from. 

Rich, KA4GFY

 
---- Ian <ik7565 at verizon.net> wrote: 
> Below is from ARRL NEWS LETTER.
> We need to watch this for all of our 1.2GHz allocations (D-Star D/V, 
Analog
> Voice)
> 73 Rick
> 
> The Federal Aviation Administration (FAA) is deploying a new generation 
of
> Common Air Route Surveillance Radar (CARSR) that has some implications 
for
> the use of the 1240-1300 MHz (23 cm) band by amateurs. The Amateur 
Service
> allocation in this band is on a secondary basis, with aeronautical
> radionavigation and several other services primary in the United States
> Table of Frequency Allocations. The FCC rules require that amateur 
stations
> operating in the 23 cm band may not cause harmful interference to 
stations
> in the radionavigation-satellite service, the aeronautical 
radionavigation
> service, the Earth exploration-satellite service (active) or the space
> research service (active). One case of harmful interference in Southern
> California has been reported. 
> CARSRs are being installed in several dozen locations throughout the 
country
> and will use various frequencies in the 1240-1350 MHz range with an 
occupied
> bandwidth of about 3 MHz. In the vicinity of the radars, amateur 
operation
> may be precluded in a portion of the 23 cm band. The ARRL is in contact 
with
> FAA engineers. We anticipate that the constraints on amateur use of the 
band
> will be limited to those necessary to protect aviation safety, which of
> course cannot be compromised.
> 
> 
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