JED - March 2013 - 30

AN/ALQ-155
Northrop Grumman’s AN/ALQ-155
ECM system provides barrage/noise jamming protection against fire control and
missile-guidance radar systems. The
system provides 360-degree coverage in
the D, E, F, G, and H radar bands.
Again, several upgrades have been
made to the system, including replacement of the system’s original
backward-wave oscillator (BWO) technology. In 2000, Northrop Grumman
received a development contract from

Warner Robins as part of a comprehensive ALQ-155 upgrade program. Including development, production, spares
and support equipment, the total contract was valued at $180 million to be
incrementally funded during the following six to 10 years.
The upgraded ALQ-155 (V)) system
incorporates technology, hardware and
software components originally developed for a number of the company’s
other countermeasures systems to provide improved reliability and maintain-

ability, as well enhance its capabilities
against modern threats.
Northrop has now completed the development work on this program, and
according to Colonel Kelly, Robins is
now only doing routine product support
on the ALQ-155(V). “Other than ongoing
software sustainment and a few small
form-fit-function shop repairable unit
(SRU-level) kinds of activities, we’re basically keeping up with any reports from
the field and assisting with any engineering questions that come up.” Colonel Kelly does add, however, that there
is a “small contract in effect to update
the requirements baseline for the ALQ155 in anticipation that at some point
in the future there will be a need to do
further engineering.“

AN/ALQ-172

The Journal of Electronic Defense | March 2013

30

624586_herley.indd 1

The Exelis AN/ALQ-172(V)2 ECM system provides multi-band threat recognition and multiple threat jamming. Like
the B-52’s other EW systems, the ALQ172 has also seen significant upgrades.
In 1996, the AF issued an Engineering
Change Proposal (ECP) to upgrade the
memory and processing capability of the
system, as well as adding a third AN/
ALQ-172 system to the platform to provide complete full threat protection.
According to Chris Carlson, Business Development Director for the company’s Integrated Electronic Warfare
Systems business unit, Exelis is currently completing another upgrade to
the system to provide enhanced situational awareness primarily through
the addition of a geo-location capability. As described by Carlson, although
most countermeasures systems don’t
usually have an inherently precise
direction-finding capability, because
of the demands posed by the B-52’s
large cross-section and the directional
jamming techniques employed by the
ALQ-172, the system does, in fact, also
provide relatively-high-quality situational awareness information. “One
of the modifications we’ve made over
the years was to add another display
and control line replaceable unit (LRU)
(LRU-21) to the system which the Air
Force recognized was providing very
good situational awareness data that
the crew could take advantage of. Now,
13-01-31 1:01 PM


http://www.herley.com http://www.crows.org

JED - March 2013

Table of Contents for the Digital Edition of JED - March 2013

The View From Here
Conferences Calendar
Courses Calendar
From the President
The Monitor
Washington Report
World Report
Enabling Global Strike: EW Updates to the USAF’s Bomber Fleet
Technology Survey
EW 101
AOC News
2013 AOC Industry Member Guide
Index of Advertisers
JED Quick Look
JED - March 2013 - cover1
JED - March 2013 - cover2
JED - March 2013 - 3
JED - March 2013 - 4
JED - March 2013 - 5
JED - March 2013 - The View From Here
JED - March 2013 - 7
JED - March 2013 - Conferences Calendar
JED - March 2013 - 9
JED - March 2013 - Courses Calendar
JED - March 2013 - 11
JED - March 2013 - From the President
JED - March 2013 - 13
JED - March 2013 - 14
JED - March 2013 - The Monitor
JED - March 2013 - 16
JED - March 2013 - 17
JED - March 2013 - 18
JED - March 2013 - 19
JED - March 2013 - 20
JED - March 2013 - 21
JED - March 2013 - 22
JED - March 2013 - 23
JED - March 2013 - Washington Report
JED - March 2013 - 25
JED - March 2013 - World Report
JED - March 2013 - 27
JED - March 2013 - Enabling Global Strike: EW Updates to the USAF’s Bomber Fleet
JED - March 2013 - 29
JED - March 2013 - 30
JED - March 2013 - 31
JED - March 2013 - 32
JED - March 2013 - 33
JED - March 2013 - 34
JED - March 2013 - 35
JED - March 2013 - 36
JED - March 2013 - 37
JED - March 2013 - 38
JED - March 2013 - Technology Survey
JED - March 2013 - 40
JED - March 2013 - 41
JED - March 2013 - 42
JED - March 2013 - 43
JED - March 2013 - 44
JED - March 2013 - 45
JED - March 2013 - 46
JED - March 2013 - 47
JED - March 2013 - EW 101
JED - March 2013 - 49
JED - March 2013 - AOC News
JED - March 2013 - 51
JED - March 2013 - 52
JED - March 2013 - 2013 AOC Industry Member Guide
JED - March 2013 - 54
JED - March 2013 - 55
JED - March 2013 - 56
JED - March 2013 - 57
JED - March 2013 - 58
JED - March 2013 - 59
JED - March 2013 - 60
JED - March 2013 - 61
JED - March 2013 - 62
JED - March 2013 - 63
JED - March 2013 - 64
JED - March 2013 - 65
JED - March 2013 - 66
JED - March 2013 - 67
JED - March 2013 - 68
JED - March 2013 - 69
JED - March 2013 - 70
JED - March 2013 - 71
JED - March 2013 - 72
JED - March 2013 - 73
JED - March 2013 - 74
JED - March 2013 - 75
JED - March 2013 - 76
JED - March 2013 - 77
JED - March 2013 - 78
JED - March 2013 - 79
JED - March 2013 - Index of Advertisers
JED - March 2013 - 81
JED - March 2013 - JED Quick Look
JED - March 2013 - cover3
JED - March 2013 - cover4
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