Transcript Steven Waite President

Steven Waite
President
GPS Re-radiating Devices
► GPS
Networking
► IRAC August 14th , 2001
► Petition for Rulemaking - tunnel radio or licensing,
filed June 2004 - denied June 2005
► Army first filed their application for approval in
April 2002 – Still Pending
► Re-radiating Manufacturers
► Safety
Re-radiating Applications
► Federal
Government Applications
 US Army – Bradley Fighting Vehicles, Airplane
Hangars, C-130 Aircraft, Depot Repair
 US Air Force – Airplane Hangars, Depot Repair
 US Navy – Airplane Hangars, Depot Repair
 NASA – R&D, Airplane Hangars
Federal Government Customers
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Holliman AFB, Edwards AFB, Eglin AFB, Kirtland AFB, Wright-Patterson AFB,
Vandenberg AFB, Hill AFB, McClellan AFB, Air Force Space Battle Lab, Air Force
Research Lab, Whiteman AFB
NAWC – Pt. Mugu, NAWC – WPNS, NAV SPEC WAR DEV GRU, NAWC – MD, US
Naval Observatory
Ft. Huachuca, Fort Bragg,, US Army – Redstone, US Army – Aberdeen PG, US
Army Soldier – MS, US Army – Picatinny Arsenal, EDMO, 617th CES/CEL, Ft.
Sill, Yuma Proving Grounds, Rock Island Arsenal, Grissom Army Reserve Base,
Army Aviation Support Facility – MI, US Army Aviation and Missile Command,
Corpus Christi Army Depot
NASA – Goddard, NASA – Langley, NASA – Dryden, Draper Labs, Sandia Labs,
Jet Propulsion Laboratory
FAA Tech Center, FAA – OK, US Dept. of Commerce – DC, UCAR/NCAR,
National Research Lab (NRL), NOAA, FAA – GA, NOAA – FL, USGS – CA,
National Weather Service
Kansas Air National Guard, Montana Army National Guard, Oregon Air National
Guard, Nebraska Air National Guard, Kansas Air Guard, Illinois National Guard
Re-radiating Applications
► State
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& Local Government Applications
Fire Stations
Police Stations
Tunnels
Prisons
Colleges
Other public safety traffic signal pre-emption
and fleet management
State & Local Customers
► UCLA,
University of Nebraska, University of Texas
at El Paso, John Hopkins University, California
Institute of Technology, University of Ohio,
Stanford University, University of Mississippi,
University of Oklahoma, University of Nevada –
Reno, MSU
► City of San Antonio, City of Mesa, AZ
► Coral Springs Fire Dept., Clark County Fire Dept.,
Glendale Fire Dept., Las Vegas Fire Dept.
Re-radiating Applications
► Private/
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Commercial Applications
Airplane Hangars
GPS Manufacturers
GPS R&D
Auto Industry
Delivery Services
Airplane Industry
Rental Car Navigation Systems
Commercial Customers
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Northrup Grumman, Lockheed Martin Astronautics, United Defense,
Raytheon, Boeing, Orbital, General Dynamics, Lockheed Skunkworks,
SCITOR, Dyncorp, Interstate Electronics Corp., Siemens Transportation
Systems/ILG, MA-COM, Navigation Solutions, Litton, Honeywell, SAIC,
Harris Corp., GEC-Plessey, Microsoft, PGS Exploration, EG&G,
Qualcomm, Teledyne, ARINC, Bechtel, 3M, Phillips Factory Service,
Lucent Technology, TRW, Applied Test Systems, Cibola Information
Systems, L3 Communications, CACI, Intel Corp., Sensis Corp., ITT
Industries, Rockwell Collins, Brunswick Research, SiGEM Inc., VIA
Systems
Leica, Nikon, SIRF Technology, Trimble Navigation, Rockwell,
Motorola, Verizon Wireless, Airtouch Cellular, Nokia, Sprint PCS, Qwest
Wireless, Nextel, Hutchison Telephone, AT&T, Onstar, Orbcomm,
Ericsson Wireless, ,
BMW, Proshot Golf, General Motors, Harley Davidson, American Honda,
BAE Systems, UPS, Caterpillar, Inc. Tech Center, John Deere Global,
Bell Ambulance,
Learjet, Inc, Robinson Helicopter, Continental Airlines, Hughes Aircraft
Co., Cessna Aircraft, Skywest Airlines, Lear Siegler Services
Sale of Re-radiation Equipment
► GPS
Networking has limited its sales; most
were to the defense, aerospace, GPS, and
local government/public safety community.
Can the GPS signal be supplied
in any other way?
► GPS
Re-radiators are used for test and
demonstration purposes primarily. In other
situations, re-radiation is useful to keep
receivers live.
► A hard wired signal does not test the
antenna, only the processor.
► A hard wired signal may not be workable for
devices intended to be mobile or which are
installed and have no signal input port.
GPS Networking RRKits
► GPS
Networking Re-radiating kits consists of
the following parts:
 1 – GPS Roof Antenna – (+35dBm LNA)
 1 – GPS Line Amplifier with Plug-in Power
supply – (+23dBm Gain)
 1 – GPS Passive Antenna – (+3dBic) Gain
 1 – Antenna Cable – Average length 100 foot.
LMR400 (-6.7 dB loss)
GPS Networking RRKits
► Installation
details
 All of GPS networking RRKITS are designed as
permanent installations.
 The radiating antenna is normally placed on the
short wall of a rectangular room and aimed out
over the area of the receivers.
GPS Networking RRKits
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Installation details
 Output Power level – 50 Picowatts or .000000000050W
Signal in
Antenna (LNA)
100’Cable LMR400
RRKIT Amp
Radiating Antenna
Total Interface loss
=
=
=
=
=
=
-130dBm
+38dBm (-92dBm)
-6.7dBm (-98.7dBm)
+23dBm (-75.7dBm)
+3dbic
(-72.7dBm)
.3dbM (-73dBm)
-73dBm = 5.01187E-11 or 50.1187PW
We use a link budget calculation to determine output levels.
Signal could be lowered if an attenuator or variable amplifier is installed.
Typically, users cannot make adjustments to an installed system.
GPS Re-radiating Regulatory Scheme
► GPS
Re-radiators must be licensed.
► Utilize the current online Application
process.
► Criteria to evaluate proposals should be
based on the overall output of the system
divided by the square footage of the room
using the calculation method.
GPS Re-radiating Regulatory Scheme
► Sales
have been limited previously, and a
fair limitation might be appropriate in the
regulations.
► Emissions of the GPS re-radiating equipment
should be limited by the equipment as
certified or by professional installation for
indoor use only.
GPS Re-radiating Regulatory Scheme
► An
online database would help to track
where these are installed. Perhaps it could
be part of a pre-application process.
► There should be a grace period for existing
users to file and get licensed. I suggest a
grace period with a GPS industry media blitz
to drive the licensing process.
GPS Signal
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Bandwidth of the re-radiated signal is determined by the filtering in the GPS roof antenna and the passive radiating
antenna’s bandwidth. It can vary from 10-50 MHz. Ours is 20Mhz (min)
Current NTIA Criteria
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8.3.28 USE OF DEVICES THAT RE-RADIATE THE SIGNALS RECEIVED
FROM THE GLOBAL POSITIONING SYSTEM.(ADD – SATELLITES.)
Except as otherwise authorized under 7.14, federal agencies may,
under the following conditions, operate devices that re-radiate signals
received from the GPS satellites.
1. Individual authorization is necessary for each device at a site
specific location. (OK)
2. Applications for frequency assignment should be applied for as an
XT station with a note indicating that the device is to be used as an
experimental RNSS Test Device for the purpose of testing stand alone
GPS Receivers or GPS Receivers that are an integral part of the
equipment under test. (OK, generally. The regulatory solution needs to
address FCC licensing and equipment certification requirements.)
Current NTIA Criteria
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3. Approved applications for frequency assignment will be
entered in the GMF. (OK, yet will the government handle
this for FCC applicants?)
4. The maximum length of the assignment will be two
years, with possible renewal. (OK)
5. The operation must be at a specified fixed location and
mobile authorization is not authorized. (OK)
6. The area of potential interference to GPS reception (e.g.
military of contractor facility) has to be under the control of
the user. (OK)
Current NTIA Criteria
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7. The maximum equivalent isotropically radiated power must be such
that the calculated emissions are no greater than -140dBm/24Mhz at a
distance of 100 feet(30meters) from the building where the test is
being conducted. The calculations showing compliance with this
requirement must be provided with the application for frequency
assignment and should be based on free space propagation with no
allowance for building attenuation (This is basically OK, but as written
some places will not be able to operate. Without factoring in building
attenuation, to meet the required calculated signal level the installation
will have to be attenuated to the point that the system will not work in
most buildings. If you do not take into account the attenuation or size
of the of the building then it may be appropriate to lower the spec. by
a specified amount e.g. -150dBm or make the level a power level per
sq. foot calculation.)
Current NTIA Criteria
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8. GPS users in the area of potential interference to GPS
reception must be notified that GPS information may be
impacted for periods of time. (OK – But how about just
putting up a sign that says you can get GPS in here.)
9)The use is limited to activity for the purpose of testing
RNSS Equipment /systems. (This limitation may need to be
defined broadly to meet the needs of the defense and
aerospace and public safety communities.)
10. A Stop Buzzer point of Contact for the authorized
device must be identified and available at all times during
GPS re-radiation operation of the device under any
condition. (OK)
Conclusion
► Existing
Re-radiating Equipment
► Regulation
► Manufacturer