KVH Industries eTrac - Manual (Page 32)

Appendix A
System Specifications
G Ge en ne erra all S Sp pe ec ciiffiic ca attiio on ns s
Meets all Inmarsat specifications for the Inmarsat mini-C Network for Land-mobile and
Maritime terminals. (R&TTE)
Transmit Frequency 1626.5 to 1660.5 MHz note 1
Receive Frequency 1525.0 to 1559.0 MHz note 1
Channel Spacing 5/2.5/1.25 kHz
Modulation 1200 symbols/sec BPSK
Ambiguity Resolution Unique word
Coding R 1 /
2
K=7 convolutional code (interleaved code
symbols RX)
Data Rate 600 bits/sec
RX Frame Length 8.64 seconds
TX Signalling Access Mode Slotted ALOHA
TX Message Channel TDMA & FDMA, interleaved code symbols
Terminal Interface EIA/TIA-232-E DTE interface. CCITT Rec.V.24/28,
4800-115000 baud IA-5 code
I/O Interface Six dedicated In/Out pins
Open collector. Sinks 25 mA each
System Set-up S-RAM Battery backup
DC Power Source 10.5 to 32 V floating DC
Max limit: 100 VA
Max current: 4 A
Max power: 32 W
RX: 1.8 W, TX: 23 W @ 12V supply
Fuse Self-recovering Poly fuse
Temperature Operating: -31
º
F to 131
º
F (-35
º
C to 55
º
C)
Storage: -40
º
F to 175
º
F (-40
º
C to 80
º
C)
Dimensions 6.4" (163 mm) dia; 5.75" (143 mm) high
Weight 2.4 lbs (1.1 kg)
Note 1. Inmarsat frequencies: TX: 1626.5-1646.5 MHz; RX: 1525 -1545 MHz
System Specifications
A-1 34-0002 Rev. D