User Manual

SPEEDCOM SC5800 User Manual
13
Frequency Channel Plan D
Frequency plan D allows independent control of transmit and receive frequencies.
This enables a very flexible frequency plan and can be used to overcome interference
in the 5.8 GHz ISM band.
The frequencies that can be used in the lower or upper sub-bands can be selected in
1 MHz increments. Performance degradation can be expected when operating
using channel plan D mode and the chosen frequencies are close to the sub-band
edges, such as a choice of one of the high frequencies in the lower sub-band and
one of the lower frequencies in the upper sub-band.
The allocation of Channel plan D frequencies is shown in Table 2.
Table 2. Channel plan D channel
frequencies
Sub-band Center Frequency (M Hz)
L 5735-5771
H 5804-5840
2.2.2 RF Power Output Options
It is possible to adjust the output power on the OU using the supplied NMS software
or a SNMP Management application.
2.2.3 SC5800 Outdoor Unit
The SC5800 Outdoor Unit transmits and receives RF through a diplexer interfaced
via an RF cable to an external antenna. The unit has a type-N connector for
connection to the RF cable used between the OU and the antenna.
The SC5800 Outdoor Unit houses the following main parts:
• Transmit/Receive Modules
• Baseband Modulator/Demodulator Circuitry
• Microcontroller/Framing & Buffering Circuitry
• Power Amplifier
• Diplexer