1. Broadband Satellite Terminal (BST)
Cahon Systems Inc.
Broadband Satellite Terminal (BST)

2. BST (Broadband Satellite Terminal) Network Diagram2

3. BST System Capabilities
Inmarsat Compatible
SwiftBroadband (Airborne version of BGAN)
Voice
2 VoIP channels, wired telephone network toll quality
Push-to-talk supervision transmitted in-band
Full Duplex capable, each direction independent
Uses bandwidth only when talking (background)
Video or Other UDP Data
10/100Base-T (UDP)
32 kbps, 64 Kbps, 128 Kbps, 256 Kbps fixed streaming or variable background (selectable)
Two Async Serial Data Channels
Full Duplex, optional hardware flow control
Telemetry & Command (T&C), 38.4 Kbps (default rate)
Payload Data, up to Kbps 3

4. BST Security & Redundancy
Inmarsat Encryption
Satellite air interface segment commercially encrypted by the Inmarsat network
NSA Type-1 encryption on satellite command links
BST End to End Encryption
AES 256 shared key
User selectable for each interface individually
User Encrypted Payloads
BST delivers externally encrypted payloads transparently
Redundant Connection, Ground Station to Inmarsat
Direct T1/E1, VPN, Mil Net, VSAT, Internet – Single Hop
Satellite (BGAN) backup – Double Hop 4

5. BST Interfaces Toll Quality VoIP Audio, 2 Channels
Transformer Coupled, 150 Ohm or 600 Ohm balanced
Input level – 1Vpp to 50Vp-p (ARC-210 compatible)
Output level – 1Vpp to 3Vp-p
28V Logic ground for push-to-talk (PTT) in and out
Full Duplex capable, each direction independent
10/100Base-T Ethernet (UDP)
User data or video, streaming or background
RS-422 Async Serial Data
Full duplex asynchronous data, up to Kbps (w/optional flow control)
RS-232/422 Async Serial Data
EIA-232/422, selectable by wiring
RS-422 Async Serial Control (Terminal Administration)
Configuration and status monitoring of terminal, up to Kbps (w/optional flow control). 5

6. BST SWaP & Temperature Temperature SWaP (Size, Weight and Power)
Airborne Equipment
Chassis Size < 0.6 cu ft (10” x 18” x 5”), excluding connectors
System Weight ≤ 30 lbs, including HLD & antenna
System Power ≤ 300 W, including HLD & antenna
Ground Equipment
Chassis Size: 2U (3.5” high), 19” rack mount
Chassis Weight ≤ 20 lbs, excluding radome (< 50 lbs)
System Power ≤ 400W, including radome
Temperature
Antenna (-73° C (start-up) to +49° C (start-up))
Chassis (-40° C (start-up) to +70° C (start-up))
Antenna (-32° C (start-up) to +49° C (start-up))
Chassis (-32° C (start-up) to +35° C (start-up)) 6

7. BST Functional Description (UAS Configuration)
Bandwidth Capability
432kbps maximum
Background IP (shared bandwidth)
Streaming IP (fixed 32 Kbps, 64 Kbps, 128 Kbps or 256 Kbps rates)
Video (shares bandwidth with payload data)
UDP on 10/100Base-T Ethernet
>200 Kbps background, or streaming
Voice
2 VoIP channels
Full duplex capable
Wired telephone voice quality
Push-to-talk
ARC-210 style interfaces
Payload Data
115.2 Kbps async
10/100Base-T Ethernet (UDP)
Full Duplex
UA Control/System Administration
Telemetry & Command (T&C) Data
Also includes BST admin
Combined 38.4 Kbps (default rate)
Encryption
Commercial AES 256 bit encryption
Identical Architecture, Airborne & Ground 7

8. Airborne SBU, HLD & Antenna Specifications
COTS LRU SWaP
SwiftBroadband Unit (SBU)
12.62”(L) X 7.62”(W) X 2.25”(H)
5.5 lbs
28VDC, ~100W
High Power/Low Noise Amplifiers & Diplexer (HLD)
9”(L) X 7.9”(W) X 2”(H)
5.9 lbs
Powered from SBU
High Gain Antenna (HGA-6000)
10”(L) X 10”(W) X 9.7”(H)
4.3 lbs
Operating Temperature Specification
SBU & HLD
-25° C to +55° C (+70 ° C for 30 minutes)
HGA-6000 Antenna
-65° C to +70° C (Tested to -73 ° C) 8

9. Explorer 700 (Terrestrial Terminal) Specifications
COTS LRU SWaP
Transceiver
11”(L) X 8.9”(W) X 1.6”(H)
3.3 lbs
Antenna
11.7”(L) X 15.7”(W) X 2”(H)
3.7 lbs
100VAC to 240VAC or battery
65W
Temperature Specification
Operating Temperature
-25 ° C to +55 ° C
Transceiver/Modem
Detachable antenna 9

10. BST Airborne Terminal 10

11. Amplifiers/Diplexer (HLD) & HGA-6000 Antenna11

12. Cahon Systems Inc. BST Ground Terminal & Antenna12

13. HGA-6000 Integration 13

14. BST Airborne Terminal Integration14