HomeMy WebLinkAboutMiscellaneous - 122 FOSTER STREET 11/11/2017 Friends of Foster Farm
Cellular Coverage Field Test (111111N-17J
• Cellular coverage was tested at 15 locations along Bridges Lane, Tiffany, Christian
Way, Vest Way and Foster.
• Test locations are shown on Page 2 (red circles) superimposed on the 700 MHz
LTE coverage map.
• At each test location a Verizon !Phone 6 was used to make a call to an AT&T
iPhone 5S. Each call lasted 30 - 40 seconds.
o No calls were dropped and the call quality was generally very good
• Network connectivity was tested using the Ookla Speedtest app.
o Latency averaged 58 and 42 ms respectively for the Verizon and AT&T
devices (lower is better).
o Downstream bandwidth averaged 3.63 Mbps overall.
o Upstream bandwidth was generally poor (even in areas of good coverage)
at 0.29 and 0.53 Mbps on average for Verizon and AT&T respectively.
• Page 3 shows the T-Mobile coverage map for the area with coverage ranging from
"fair" (light pink) to "good" (dark pink).
• Indoor signal strength wasn't tested. This is likely "fair" to "poor" inmost areas
but this can be addressed by using "wifi calling" without the need for additional
cellular towers or hot spots (see Page 4 for additional details).
9 See Pages 4 and 5 for testing methodology, additional notes and detailed data.
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Methodology and additional Notes
Tests were performed using an iPhone 6 running iOS 10.3.3 with a Verizon plan and an
iPhone 5S running iOS 11.1 with an AT&T plan. WI-Fi and Bluetooth were disabled for
the tests and all apps were shut down except for the Phone and Speed�test apps.
Cell coverage was tested from inside a, vehicle at locations about 0.2 miles apart along
Foster, Bridges Lane, Tiffany, Christian Way and Vest Way.
The worst observed signal strength at each of the 15 locations was recorded (e.g. IATE
if I bar of LTE and 2 bars of LTE were both observed,).
During the cellular calling test, the call quality was monitored. The call was terminated
after at least 30 seconds had elapsed.
The O!okla Speedtest app was used on each phone to test the internet latency in
milliseconds along with the downstream and upstream bandwidth in Mbps (megabits
per second - higher is better).
The T-Mobile coverage map can be found at
-p (enter a zip code to zero in on a
specific location).
Wifi calling was introduced around 2015 and is now available on many devices (e.g.
iPhone 6 or later, Google Pixel, Galaxy Note 8) and carriers including Verizon, AT&T and
T-Mobile (https://en.wikipedia.org/wiki/Generic—Access—Network).
Wifi calling can often be used for cellular calls throughout homes and outdoors up to
100 feet or more away from the orifi router without needing any cellular signal at all.
The 700 MHz LTE coverage map shows that most of Bridges Lane and Vest Way have a <
-95 dBm signal strength.A -90 to -99 dBm is generally considered to be "average" (see
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Cellular Coverage Field Test(11/11/2017)
1
Verizon('!Phone 6, If3S 101.3.3) AT&T(!Phone 5S, iOS 11,1)
Signal Signal Call Test
(worst latency download upload (worst latency download 'upload (Verizon to
Address cane) (ms) (Mbps) (Mops) case) (ms) (Mbps) (Mops) AT&T)
t
Bridges Lane
Corner Foster 2xLTE 66 0.54 0.05 1x4G 44 1.22 0.16
45 2xLTE 60 6.10 0.58 2xLTE 37 8.30 0.76
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140 3x3G 42 1.52 0.06 1x4G I' I°^, Ei
225 3x3G 73 0.34 0.23 1xLTE 33119 1.24 d
1,
Christian Way
30 1xLTE 57 1.24 0.08 2xLTE 35 4.98 0.22
57 ULTE 79 1.83 0.05 1xLTE 43 4.16 0.08
137 1xLTE 66 2.23 0.19 1xLTE 39 6.1.8 0.17
Tiffany
55 1xLTE 68 0.51 0.02 1xLTE 392.21 0.19
Vest Way
Corner Foster 1xLTE 38 4.43 1.28 2xLTE 38 7.92 2.26
6.6 1xLTE 74 1.09 0.01 1x4G 51 0.78 0.02
115 2xLTE 63 2.31 0.16 2xLTE 36 2.01 1.22
152 3x1X I" N/A NIA 1x4G 67 0.88 0.04
Foster
Corner Boxford ULTE 40 0.87 0.02 1x4G 46 1.75 0.18
75 2xLTE 1 38 22.47 1.04 2xLTE 36 6.26 0.30
160 1xLTE 47 1.03 0.27 1xLTE 37 5.37 0.3311
Averages 59 3.50 0.29 42 3L.--.*831 0.53