L-Band Tactical (L-TAC) Radio-over-Satellite (ROS) Overview

L-Band Tactical (L-TAC) Radio-over-Satellite (ROS) Overview 2020 Spectra Group (US) Inc. 1.540.729.0744 [email protected] www.spectra-group.us

What is LTAC? L-TAC/UHF Comparison L-Band Tactical (LTAC) is a combination of RF conversion hardware and satellite capacity services supporting multiple types of currently fielded tactical radios. Slingshot Hardware converts UHF, VHF Low, and VHF High frequency input signals from GFE radios to commercial L-band for transmission on Inmarsat – 4 (I4) global satellite constellation. Capacity is delivered in Standard Narrow Spot Beam (NSB) or Regional Beams Each beam is engineered with a single 25khz channel (base price) Each channel can be configured for (1) 25khz carrier (WB) or (5) 5khz carriers (NB) Multiple 25kHz channels can be provisioned in the same beam Mobility allows the customer to move beams (porting) to different geographical area on any I4 satellite in the constellation. No software changes or modifications are required, Any UHF/VHF Mil-STD radio can be connected to the appropriate LTAC Sling Shot device by a standard RF cable. No additional operator training is required. Maritime, aeronautical, vehicular, and dismounted configurations are available. The SlingShot hardware system is a COTS item. Non-ITAR controlled. Copyright Spectra Group Ltd (UK) 2019 www.spectra-group.co.uk

L-TAC/UHF Comparison L-TAC/UHF Comparison L-TAC UHF Regional Coverage: 1/3 of earth per satellite, No portability 1 x Channel One operation at a time Purchased as 5K or 25K Channel for duration of lease, pricing varies Always on, single region coverage Requires 15 – 50 Watts to close link. Higher power is more susceptible to DF. Regional Coverage can be jammed from anywhere in the region. Must have DoD UHF TACSAT capable radio Copyright Spectra Group Ltd (UK) 2019 Global Coverage and portability across I-4 Network of satellites Multiple Channels for same cost Multiple Operations Can be Changed between 5 x 5K and 1 x 25 at no additional cost. Can be moved or modified every 2 weeks Requires 400mW – 5 Watts to close link. Lower power is Less susceptible to DF. Spot Beams must be jammed locally. Current DoD radios or any frequencyprogrammable VHF or UHF radio www.spectra-group.co.uk

SlingShot Overview SlingShot - Command and Control Voice and Data Communications (UHF-TACSAT alternative) Provides: Extension of tactical ranges Beyond Line Of Sight (BLOS) to 1000 miles Communications On The Move (COTM) with low latency voice and data SWaP - Small, Lightweight and low power requirements Easy to setup and operate Utilizes in-service secure VHF and UHF radios Multi-system options providing all operational platform fits Interoperable communications between various End Users/Agencies/Organizations Copyright Spectra Group Ltd (UK) 2019 www.spectra-group.us

Capability Overview SlingShot Appliqué Radio SlingShot Appliqué Radio SlingShot SlingShot Antenna Antenna SlingShot Power System Copyright Spectra Group Ltd (UK) 2019 SlingShot Power System www.spectra-group.co.uk

L-TAC Characteristics and Coverage I-4F3 – 98W covering Americas I-4F4 (AlphaSat) I-4F2 – 64E – 25E covering covering EMEA & parts of I-4F1 – 143.5E covering AsiaPAC EMEA AsiaPAC Copyright Spectra Group Ltd (UK) 2019 www.spectra-group.co.uk

Beams & Channels Standard Beam: Consists of: 1x 25 kHz Channel Flexible Leasing: Pricing is based on a 12 Month lease, but is available in smaller time frames (1 month, 3 moths, 6 months, etc.) Customised Beams: Beam Shaping – Change the shape of NSB (e.g. Null an area) Increased Power – Increases the coverage of a Standard NSB Double Headed Beam – Link two separate geographical areas (transmitting and receiving in both areas) Double Headed Strap Beam – Point to Point link (where the signal is not received in the transmitted beam) Multi-Channel Beam – Multiple voice networks within one Standard NSB Copyright Spectra Group Ltd (UK) 2019 www.spectra-group.co.uk

Spot Beams Standard Beam: 25 kHz channel: 750-2,500 Kilometers Customised Beam Parts of NSB 127 142 New Zealand Or 3 NSB 142 NZ North Island NSB 127 NZ South Island 2 1 Customized Beams Double Headed Beam Copyright Spectra Group Ltd (UK) 2019 www.spectra-group.co.uk

SlingShot System Equipment Overview Appliqué Battery/PSUs Frequency Manpack/Aero Antennas Vehicle / Maritime UHF-M Tx 281 - 311 MHz Rx 240 - 270 MHz VHF-M 58 - 88 MHz VHF-C 144 - 174 MHz Copyright Spectra Group Ltd (UK) 2019 www.spectra-group.co.uk

Deployment Scenarios 5 x 5 kHz Independent Tactical Voice L-Band Transmit L-Band Networks Receive Multi-Channel Deployment Scenario Utilizing UHF and VHF Tactical Radios 100 kHz transponder 1 2 4 3 25 kHz LTAC Channel 25 kHz Single Carrier Mode f1 Dual Carrier Mode f1 f2 Five Carrier Mode f1 f2 f3 f4 f5 Copyright Spectra Group Ltd (UK) 2019 www.spectra-group.us