1. www.spectra-group.co.uk Telecom Solutions Satellite Services Telecom Training Resource Services & L-TAC Service

2. www.spectra-group.co.uk Telecom Solutions Satellite Services Telecom Training Resource Services Introduction The Challenge Military users need to command widely dispersed forces in austere environments without the delay of deploying terrestrial infrastructures. UHF TACSAT channels are in short-supply and expensive. The Requirement To increase the number of TACSAT channels for voice and data over tactical, theatre and strategic distances using existing tactical radios with their in-built encryption. The Solution SlingShot™ - Spectra’s small, lightweight external appliqué for military radios, allows low-latency voice and data regional communications with the additional option of connecting to an out-of-theatre rear based command node. AND L-TAC - Inmarsat’s communications network provides L-band to L-band Beyond Line of Sight communications from a global constellation of geostationary satellites.

3. www.spectra-group.co.uk Telecom Solutions Satellite Services Telecom Training Resource Services Solution Overview L-TAC Supplement UHF TACSAT channels with L-band TACSAT Channels (Inmarsat I-4 Satellites) Narrow Beams, Regional Beams, Generated Beams Lease airtime for a minimum of 1 month Based on 25kHz channel (1 x Wideband or 5 x ANDVT nets) Data – Throughput depending on channel and radio C-band antenna in user HQ (out of area) can be connected to the Radio Net SlingShot™ Variants: Manpack Vehicle Marine Aviation UHF VHF Antennas Manpack (Omni) Vehicle (Omni) (Land / Marine) Directional (Regional Beam) Input Frequency – Fixed offset automatic by translator Tested Radios to date Harris - PRC 117F (Wideband Voice/ANDVT, HPW and ViaSat Data) Harris - PRC 117G (Wideband Voice) Harris - PRC 152 (Wideband Voice) Harris - RF5800M-HH (Wideband Voice, IP Voice) Thales - PRC 148 Supported by 24/7 NOC Inmarsat Type Approved

4. www.spectra-group.co.uk Telecom Solutions Satellite Services Telecom Training Resource Services Technical Specifications SlingShot Appliqué Temperature Range:Operational -26 to +58 o C IP Rating:IP 67 Enclosure:Machined aluminium to withstand short immersion Size:170 x 88 x 29 (mm) Weight:500g Manpack Power Cable utilising in-service batteries (e.g. MBITR / 117 Type) SlingShot PSU Voltage Input Range:12 to 24VDC Voltage Outputs:7.2V and 24V Connections:DC Input from supply Output to Slingshot™ transceiver Enclosure:Machined aluminium to withstand short immersion IP Rating:IP 67 Mounting:Flange mounting with 4 x M4 clear holes Size:120 x 90 x 60 mm Weight:400g SlingShot Appliqué SlingShot PSU

5. www.spectra-group.co.uk Telecom Solutions Satellite Services Telecom Training Resource Services Antennae TypeUse Dimensions (mm) COTMCOTPCOTH Vehicle omni (active) ✔✔✔ Marine omni (active) ✔✔✔ Land directional (passive) ✔✔ Manpack omni (half active) ✔✔✔ 146 135 81 122 149 142 72mm 72

6. www.spectra-group.co.uk Telecom Solutions Satellite Services Telecom Training Resource Services Spectra NOC Customer Site Team A L-TAC / SlingShot Single Beam Radio Net including C-Band L-Band Transmit - Band Tactical Radio Antenna SlingShot L-Band Receive SlingShot Vehicle SlingShot Marine

7. www.spectra-group.co.uk Telecom Solutions Satellite Services Telecom Training Resource Services Spectra NOC Customer Site Beam A L-TAC / SlingShot Point to Point Radio Link in Different Beams including C-Band Beam B L-Band Transmit C-Band Tactical Radio Antenna SlingShot L-Band Receive SlingShot Vehicle SlingShot Marine

8. www.spectra-group.co.uk Telecom Solutions Satellite Services Telecom Training Resource Services Spectra NOC Inmarsat SAS Beam A L-TAC / SlingShot Radio Net to Radio Net in Different Beams Double Hop Beam B L-Band Transmit C-Band Tactical Radio Antenna SlingShot L-Band Receive SlingShot Vehicle SlingShot Marine

9. www.spectra-group.co.uk Telecom Solutions Satellite Services Telecom Training Resource Services EMEA Coverage Narrow Beam - between 750 - 1000Miles Regional Beam - circa 2000 Miles

10. www.spectra-group.co.uk Telecom Solutions Satellite Services Telecom Training Resource Services Features and Benefits FeaturesBenefits Designed for Inmarsat I-4 constellationProven worldwide connectivity Complements existing military capacityEnd users can prioritise traffic access between military and commercial platforms Utilises Narrow Beams, Regional Beams, Generate Beams Maximum flexibility in high tempo operations Lease airtime for a minimum of 1 monthExcellent cost optimisation Based on 25kHz Channel1 x Wideband or 5 x ANDVT nets Global coverage using C-bandAntenna in User HQ (out of area) can be connected to the radio net Data throughput depending on Channel and radio HPW and ViaSat proven up to 56kbps

11. www.spectra-group.co.uk Telecom Solutions Satellite Services Telecom Training Resource Services Questions Contact Details: T:+44 (0)845 2600 444 M:+44 (0)773 8088 018 E: s.taylor@spectra-group.co.uks.taylor@spectra-group.co.uk W:www.tacsat.netwww.tacsat.net