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About Digital Global Systems

Digital Global Systems focuses on automated and intelligent spectrum management solutions. Digital Global Systems has over 30 patents focused on analyzing wireless environments and delivering knowledge in near real-time. Additional information can be found at www.digitalglobalsystems.com

c o n s u l t i n gs a l e s

s t a f f i n gs u p p o r t

7950 Jones Branch DriveStudio 1ATysons Corner, Virginia 22102240.477.7149 office phone www.digitalglobalsystems.com

Improving Network Performance and Incident ResponseCLEARSKY™ for Public Safety

Digital Global Systems, the Digital Global Systems logo, and CLEARSKY™ are registered trademarks of Digital Global Systems, Inc. in the United States and other

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Digital Global Systems assumes no responsibility for any inaccuracies in this document. Digital Global Systems, Inc. Reserves the right to change, modify, transfer,

or otherwise revise this publication without notice.

Incident Response

S I T U AT I O N A L A W A R E N E S S F O R F I R S T R E S P O N D E R S I S V I TA L

DGS provides spectrum monitoring systems which focus on supporting communications for:

- Incident response- Large Event Management- Disaster Recovery

Our systems also perform long duration, automated analysis and provide knowledge regarding:

- Usage and Occupancy- Coverage Gaps- Intermittent and Chronic Interference

I n c i d e n t Re s p o n s e & D i s a s t e r Re c o v e r y

• Load a channel plan and Identify licensed channels with limited use available for short-term assignment.• Detect network outages for expedient remediation.• Highlight illicit activity, such as drones and wireless jammers.• Locate drones and their associated controllers, to eliminate surveillance and reduce threat.

I n t e r f e r e n c e D e t e c t i o n & C l a s s i f i c a t i o n

• Engage learning engines to identify typical vs. anomalous activity automatically.• Compare channel plans (center frequency/bandwidth) to real-time activity, with automated alarms highlighting variances.• Demodulate (P25, NXDN, DMR, DSTAR and TETRA), to identify quality issues and the presence of unauthorized radios.

L o n g - t e r m D i s t r i b u t e d M o n i t o r i n g

• Fixed, distributed sensors provide an unparalleled view into a network environment.• Access information at a network operations center from multiple nodes, on a single pane of glass.

• Remote spectrum analy-sis capability, reduces time required at site.

T R A N S P O R T A B L E - D E P L O Y A N D A S S E S S A S P E C T R A L E N V I R O N M E N T I N M I N U T E S .- I D E N T I F Y N E T W O R K O U TA G E S D U R I N G A D I S A S T E R .- C O N T I N U O U S C O L L E C T I O N A N D A L A R M I N G D U R I N G E V E N T.

F I X E D N E T W O R K M O N I T O R I N G ( 4 0 M H Z T O 6 G H Z ) - D I S T R I B U T E D N E T W O R K I D E N T I F I E S I N T E R M I T T E N T A N DC H R O N I C S O U R C E S O F I N T E R F E R E N C E .

I D E N T I F Y I L L I C I T A C T I V I T Y - I D E N T I F Y T H E P R E S E N C E O F WID EBAND J A M M E R S A N D D R O N E S .- L O C AT E A N D D I S A B L E D R O N E - C O N T R O L L E R C O M M U N I C AT I O N .

Seconds count when live are on the lineDGS supports the mission of first responders

use case - chronic interferenceTower based radios, at three (3) separate locations entered bypass mode (reset) 15-20 times per week, impacting First Responder communications. After 3 months of investigation by the vendor, the root cause remained unidentified.

DGS Approach: Using the DGS transportable SigBASE™ system, unattended internal (multicoupler connect) and external scanning was completed for a period of 7 days.

Observances

• A Wideband anomaly was detected (Internal Only)• Bandwidth observed for anomaly averaged 900 KHz vs. the expected 12.5 KHz.• Amplitude average for wideband signal was -105 dBm, with periodic as high as -90 dBm.• Correlated observed between:

o the wideband signal amplitude exceeding -95 dBm and bypass condition appearing.o amplitude rise when 2 additional, high powered signals were present simultaneously.

ConclusionEvidence presented regarding the presence of passive intermod (PIM). Cables were replaced at all 3 sites and the bypass issue alleviated.

Total time spent at all 3 sites: 1 hour for setupAutomated Data Collection: 7 DaysTotal time spent analyzing data: 1 hour