User's Manual

Skybitz Inc
MTXM
FCC/IC Test Report
November, 2009
WLL Report #11125-01 Rev. 3 - Page 3 of 40 - © 2009 Washington Laboratories, Ltd.
2 Equipment Under Test
2.1 EUT Identification & Description
The SkyBitz, Inc. MTXM L-Band Mobile Terminal transmits and receives messages through the
SkyBitz network. Its integrated design includes a software-based radio, antennas, and lithium battery
pack in one package.
Table 1: Device Summary
ITEM DESCRIPTION
Manufacturer: SkyBitz, Inc.
FCC ID Number SAE-000MTXM
IC ID Number 5375A-000MTXM
EUT Name: Mobile Terminal
Model: MTXM
FCC Rule Parts: §25
IC Rule Parts RSS-170 Annex B
Frequency Range: TX: 1626.5-1660.5MHz
RX: 1525-1559MHz & 1575.42MHz
1626.5-1660.5MHz(authorized)
Maximum Output Power: 1.3 watts EIRP
Modulation: MSK
Necessary Bandwidth 4.248 kHz
Occupied Bandwidth (20dB): 4.3569kHz
Keying: Automatic
Type of Information: Data
Number of Channels: Variable- determined by satellite provider
Antenna Type Integral
Frequency Tolerance: 0.001% (FCC), +/-320 Hz (IC)
Emission Type(s): G1D
Emissions Designator 4K36G1D
Interface Cables: RS485 Interface
Power Source & Voltage: 6Vdc from batteries
Final RF Amp Voltage 4.9 VDC
Final RF Amp Current 275 mA
2.2 Test Configuration
The EUT was configured with a support laptop and an RS485 adapter. The laptop used SkyBitz
software, SkyPort, to configure the system for continuous transmit. A separate DC power supply was
used to provide a constant 6Vdc to the EUT so as not to drain the batteries.
The EUT firmware/software was set up to simulate normal transmission to a satellite