Exhibit 1

0480-EX-CR-2018 Text Documents

BAE Systems Information and Electronic Systems Integration Inc.

2018-10-30ELS_218879

Exhibit 1

In connection with this renewal application for Station WE2XXG, the following is noted:

1. This is to advise the Commission that the contract currently associated with the license
has been changed to the following:

Agency/Customer: US Army
PM SAI/ ACC-APG DIVISION C

Contract No.: W56KGY-16-D-0013

Contract POC: Paul J. Kurzer, (443) 861-5368
paul.j.kurzer.civ@mail.mil

Because the license will also remain in effect to support non-government contract
activity, no change to the ‘XT” Station class should be made.

2. As the Commission is aware, FAA’s previous coordination of the license required carve-
out of 1213-1215 MHz. See FAA email below dated 12/14/2018. Accordingly, it is
requested that a Special Condition be added to the license (or the license be otherwise
modified) to confirm no operations are permitted between 1213-1215 MHz:
From: Anuj.K.Sinha@faa.gov <mailto:Anuj.K.Sinha@faa.gov>
[mailto:Anuj.K.Sinha@faa.gov]
Sent: Wednesday, December 14, 2016 3:04 PM
To: Rummel, Jeffrey <Jeffrey.Rummel@arentfox.com
<mailto:Jeffrey.Rummel@arentfox.com> >
Cc: Stephanie.Thomas@faa.gov <mailto:Stephanie.Thomas@faa.gov>
Subject: RE: BAE Systems - Request for FAA Coordination - Pending Renewal and
Modification of Experimental License WE2XXG

Sir,

I have the assignment numbers for the renewal if BAE Systems concur to the change in
frequency range from 1213MHz to 1215MHz

Pending Renewal Application - WE2XXG - File No. 0093-EX-CR-2016

1215MHz-1237MHz NGT 160474

1563MHz-1587MHz NGT 160473

Respectfully,

Anuj

Anuj Sinha
Frequency Management Officer, Spectrum Engineer
Federal Aviation Administration (FAA)
ESA Spectrum Engineering Services, AJW-1C5
Office: 718 977 6609

3. Attached hereto are the licensee’s calculations demonstrating compliance with NTIA
GPS Re-Radiation Criteria – Section 8.3.28 of NTIA Regulations Maximum Equivalent
Isotropically Radiated Power.

Compliance with NTIA GPS Re-Radiation Criteria – Section 8.3.28 of NTIA Regulations
Maximum Equivalent Isotropically Radiated Power

Two distribution networks are used to re-radiate the GPS L1 (1575.42 MHz) and L2 (1227.60
MHz) signals at several locations inside the building designated PTP02 located at NL 42-42-09,
WL 71-25-52. These systems (dual band) are configured similarly with an active receiving
antenna, a signal-boost amplifier (where necessary), a leveling amplifier, RF distribution
network and a re-radiating antenna for both frequencies at several locations within the building
site.

Calculations are performed based on Section 8.3.28 of the NTIA regulations1, wherein item f
states:
“The equivalent isotropically radiated power (EIRP) must be such that the emissions are
no greater than -140dBm/24 MHz as received by an isotropic antenna at a distance of 100 feet
(30 meters) from the building where the test is being conducted. The calculation for maximum
EIRP shall be based on free space propagation with no allowance for additional attenuation (e.g.,
building attenuation) as shown below.

max = + 20log10 + 20log10(30+ ) − 27.55

Where: max isthe maximum permissible EIRP in dBm
is the power received at 30 meters from the building (i.e. -140 dBm/24 MHz)
is frequency in MHz (i.e. 1575.42 for L1, 1227.60 for L2, 1176.45 for L5)
is the distance between the radiator and the closest exterior wall of the building in
meters.

max can then be converted to picowatts by using the formula: max( W)=10^(( max / 10)+9)

Applications requesting power greater than the max calculated at =0 meters (i.e. 39.3 pW for
L1, 23.8 pW for L2, and 21.9 pW for L5) must provide the distance from the transmit antenna to
the nearest exterior wall so that reviewing agencies can determine if the requested power meets
the maximum EIRP described above.”

For this application, distance to the nearest exterior wall is assumed to be zero. Calculating the
maximum transmit power:

L1 max(dBm) = -140 + 20log10(1575.42) + 20log10(30) – 27.55 = -74.1 dBm
L1 max(pW) = 10^((-74.1/10) + 9) = 39.3 pW

L2 max(dBm) = -140 + 20log10(1227.6) + 20log10(30) – 27.55 = -76.2 dBm
L2 max(pW) = 10^((-76.2/10) + 9) = 23.8 pW

1 See Manual of Regulations and Procedures for Federal Radio Frequency Management Para 8.3.28 (May 2013
Edition, Rev Sept 2015).

Document Created: 2018-12-01 16:49:37
Document Modified: 2018-12-01 16:49:37

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