User Manual

MDR2400/5800-SR, Orion2410/5810-SRi and Orion 5825-SR
862-01881 Issue 12c Page 14
2.2.1.3 MDR2400 FCC Compliant Frequency Channels for the U.S. only
In countries where FCC compliance is required, only the following frequencies may be
used:
Low band RF Unit – 2412MHz to 2426MHz,
High band RF Unit – 2458MHz.
Use frequency plan D (variable frequency) to set the RF Unit.
D
H
Frequency (MHz)
LOW BAND TRANSMIT
HIGH BAND
TRANSMIT
D
L
D
L
2412 2426
2458
Figure 3. MDR2400 FCC Compliant Frequency Channels for the U.S. only
2.2.1.4 Orion 5850 Frequency Channels Plan A, B and C (FCC Compliant)
The channel spacing is based on the transmit bandwidth, either 3 MHz, 6 MHz, or 10
MHz, software selectable. Different bandwidths can be selected dependent on the
optimum link performance; required system sensitivity versus data transfer rate.
Only channel frequencies that are FCC compliant can be selected through the
configuration software. The channel frequency ranges are programmed into the radio
firmware and cannot be adjusted by the user.
The radios were tested and approved for FCC compliance with the frequency ranges
below, see Figure 4.
Low band RF Unit:
Modulation Type Lowest Center Freq.
(MHz)
Highest Center Freq.
(MHz)
8464kbps / 16-QAM
5731 5774
16928 kbps / 16-QAM
5732 5773
25392 kbps / 16-QAM
5734 5771
High band RF Unit:
Modulation Type Lowest Center Freq.
(MHz)
Highest Center Freq.
(MHz)
8464kbps / 16-QAM
5801 5844
16928 kbps / 16-QAM
5802 5843
25392 kbps / 16-QAM
5804 5841