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Telephonics Corporation, a subsidiary of Griffon Corporation, has been contracted by Sierra Nevada Corporation (SNC) to support manufacturing of MODI II electronic countermeasure (ECM) systems for the US Marine Corps (USMC) Marine Expeditionary Units.

Under the $18m contract, the company will support the manufacture of SNC-designed 580 Modi II units, which are currently in full-rate production at its Long Island, New York, US, facilities.

Production is scheduled to be completed by the end of this summer.

"Modi II affirms our continued commitment to support these critical programmes for our armed forces."

Telephonics corporate vice-president Hector Colon said: "Telephonics has a proven track record of effectively executing low and high-volume contract manufacturing efforts of sophisticated electronics equipment and delivering quality products on time, every time. Modi II affirms our continued commitment to support these critical programmes for our armed forces."

SNC was originally awarded a contract of $73.2m in October 2015 by the USMC to manufacture the devices.

Modi II is man-pack ECM jammer, which is incorporated with industry proven size, weight and power (SWaP) metrics, and is said to be a cost-effective and a durable set of equipment.

It is designed to be deployed both offensively and defensively to block enemy communications in a military engagement.

The system can also be utilised to shield users from being exposed to radio-controlled improvised explosive devices.

The system will add to SNC-built electronic warfare systems and range instrument devices, which are currently being utilised by the US Marines, including the Thor II AN/PLQ-5 and Thor III AN/PLQ-9.

Image: Thor III counter-IED system. Photo: courtesy of Gertrud Zach.