NAL Research Corporation (TN2009-25-V1.0)
5
2.2 RF Specifications
Operating Frequency: 1616 to 1626.5 MHz
Duplexing Method:
TDD
Multiplexing Method: TDMA/FDMA
Link Margin:
13.1 dB average
Average Power during a Transmit Slot (Max):
7W
Average Power during a Frame (Typical):
0.6W
Receiver Sensitivity at 50 (Typical): –118.5 dBm
Receiver Spurious Rejection at offsets > 1MHz: 60dB
2.3 Electrical Specifications
Main Input Voltage Range:
+4.0VDC to +32.0VDC
Main Input Voltage Nominal: +12.0VDC
Main Input Voltage Ripple:
40mV peak-to-peak
Average Standby Current:
300mA @ 5.0VDC
Average Data Call Current:
800mA @ 5.0VDC
Peak Data Call Current:
2.5A @ 5.0VDC
NOTE:
The power requirements apply to DC power measured at the A3LA-XM multi-interface
connector input. The Average Data Call Current may vary depending on the field-of-view between
the modem antenna and the Iridium satellite.
2.4 Environmental Specifications
Operating Temperature Range: –30
o
C to +70
o
C (–22
o
F to +158
o
F)
Operating Humidity Range:
< 75% RH
Storage Temperature Range:
–40
o
C to +85
o
C (–40
o
F to +185
o
F)
Storage Humidity Range:
< 93% RH
2.5 Data I/O Specifications
Dial-Up Data/RUDICS/Internet: 2.4 Kbits/sec (average)
Short-Burst Data:
1960 bytes for Mobile-Originated, 1890 bytes for Mobil-Terminated
Short Messaging:
160 Characters (maximum)
Hardware Interface:
RS232 or USB
Software Interface:
Standard AT Commands
Encryption:
AES 256-Bit when Enabled
2.6 Related Hardware
Antennas:
SYN7391 Series, SAF2040 Series, SAF5340 Series, SAF5350 Series (These
antennas are to be used with the A3LA-XM transceiver only. They are NOT
optimized and should not be used for pass through GPS receiver)
Data Kit/Connector: HRC-24-7X, HRC-24-7XU, HRC-24-8X, HRC-24-8XU
Power Adapters:
LA-3098, LA-7021
DPL Audio Handset:
DPLS0401-X, DPLS0401-412
RF Splitter:
SYN-SLC-ALBT
