JED - May 2014 - 39

By John Haystead
The Journal of Electronic Defense | May 2014

I

n the March JED, we looked at
some of the larger DOD helicopter
EW programs. While the US Army,
Navy and, to some extent, the Air
Force continue to refine and schedule their long-range integrated
aircraft survivability equipment (IASE)
road maps for their rotary-wing aircraft
fleets, including increased system integration and the addition of RF jamming
capabilities, it's important to recognize
that certain US special operations and
special mission rotorcraft users and
platforms already have these capabilities. In addition, specialized electronic
support measures (ESM) systems carried
on some rotorcraft platforms are providing additional RF-threat self-protection
and situational awareness.

MH-47G CHINOOK/MH-60M
BLACK HAWK
For the past decade, US Army special
operations aviation has fielded its own
integrated ASE capabilities including
the Suite of Integrated RF Countermeasures (SIRFC) and the Suite of Integrated IR Countermeasures (SIIRCM),
leveraging two Army EW development
programs started in the 1990s. Built
by Exelis (Clifton, NJ), the AN/ALQ211 SIRFC family of systems delivers RF
threat detection and countermeasures.
The ASE suite also includes the AAR57 Common Missile Warning System
from BAE Systems (Nashua, NH) and
the AVR-2B/X laser warner from United
Technologies (Danbury, CT), as well as
an acoustic hostile fire indication system from Raytheon's BBN Technologies
(Cambridge, MA). ASE elements are in-

39

tegrated via a Common Avionics Architecture System (CAAS) using a single
Dedicated Electronic Warfare Display
(DEWD). The system is operational on
MH-47G "Chinook" and MH-60M "Black
Hawk" helicopters of the Army's 160th
Special Operations Aviation Regiment
(SOAR), known as the "Night Stalkers,"
based at Fort Campbell, KY. The MH-60M
ASE suite also includes the ALQ-144 IR
countermeasures system. SIRFC replaced
four federated legacy systems - the AN/
APR-39, APR-44, ALQ-136 and ALQ-162.
The AN/ALQ-211 is also in service on Air
Force Special Operations Command (AFSOC) CV-22 "Osprey" rotorcraft, along
with the AAR-54 missile warning system and the AAQ-24 Directional Infrared
Countermeasures (DIRCM) system from
Northrop Grumman.
According to Joe Rambala, vice president and general manager of Exelis Integrated EW Systems, it is the system's
high level of integration and data fusion capabilities that allow for Hostile

Fire Indication (HFI), geolocation information, and other warning functionality to all be combined and presented
on a single situational display. "We are
continually working with the special
operations community to advance the
technology of the ALQ-211, using both
internal and external funding to pace
new and emerging threats, and we have
a technology road map that makes it
supportable, exportable and relevant
against those new threats."
Exelis is currently working on a
next-generation Digital RF Memory
(DRFM) and digital receiver upgrade for
the system, including new processor
boards, and replacement of some of the
high-end analog RF components with
digital technology. In particular, Rambala notes that, "Rotary wing aircraft
have very unique RF jamming requirements, and we're continually working to
better understand them and field systems with advanced threat techniques
to meet them."



JED - May 2014

Table of Contents for the Digital Edition of JED - May 2014

The View From Here
Conferences Calendar
Courses Calendar
From the President
The Monitor
Washington Report
World Report
Interview
European Helicopter EW
Advanced ASE And ESM Already On Some US Helicopters
Ground-Based COMINT Solutions
Fighting the Kill Chain: Concepts and Methods of Electronic Attack
EW 101
AOC News
Index of Advertisers
JED Quick Look
JED - May 2014 - cover1
JED - May 2014 - cover2
JED - May 2014 - 3
JED - May 2014 - 4
JED - May 2014 - 5
JED - May 2014 - The View From Here
JED - May 2014 - 7
JED - May 2014 - Conferences Calendar
JED - May 2014 - 9
JED - May 2014 - Courses Calendar
JED - May 2014 - 11
JED - May 2014 - From the President
JED - May 2014 - 13
JED - May 2014 - 14
JED - May 2014 - The Monitor
JED - May 2014 - 16
JED - May 2014 - 17
JED - May 2014 - 18
JED - May 2014 - 19
JED - May 2014 - 20
JED - May 2014 - 21
JED - May 2014 - Washington Report
JED - May 2014 - 23
JED - May 2014 - World Report
JED - May 2014 - Interview
JED - May 2014 - 26
JED - May 2014 - 27
JED - May 2014 - European Helicopter EW
JED - May 2014 - 29
JED - May 2014 - 30
JED - May 2014 - 31
JED - May 2014 - 32
JED - May 2014 - 33
JED - May 2014 - 34
JED - May 2014 - 35
JED - May 2014 - 36
JED - May 2014 - 37
JED - May 2014 - 38
JED - May 2014 - Advanced ASE And ESM Already On Some US Helicopters
JED - May 2014 - 40
JED - May 2014 - 41
JED - May 2014 - 42
JED - May 2014 - 43
JED - May 2014 - Ground-Based COMINT Solutions
JED - May 2014 - 45
JED - May 2014 - 46
JED - May 2014 - 47
JED - May 2014 - 48
JED - May 2014 - 49
JED - May 2014 - Fighting the Kill Chain: Concepts and Methods of Electronic Attack
JED - May 2014 - 51
JED - May 2014 - 52
JED - May 2014 - 53
JED - May 2014 - 54
JED - May 2014 - 55
JED - May 2014 - 56
JED - May 2014 - 57
JED - May 2014 - 58
JED - May 2014 - 59
JED - May 2014 - EW 101
JED - May 2014 - 61
JED - May 2014 - AOC News
JED - May 2014 - 63
JED - May 2014 - 64
JED - May 2014 - Index of Advertisers
JED - May 2014 - JED Quick Look
JED - May 2014 - cover3
JED - May 2014 - cover4
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