2.0 Wireless Operation Detail; Channel Bandwidth; Modulation; Mean Squared Error (Mse) - Trango Systems TrangoLINK GigaPlus User Manual

2.0 Wireless Operation Detail

Channel Bandwidth

The system supports the following channel bandwidths:
3.5 MHz
5.0 MHz
7 MHz
8.33 MHz
10 MHz
12.5 MHz
13.75/14 MHz
20 MHz
The speed is changed via the management interface using the speed command or a
drop down box in the web interface. Both sides of the link must be changed
independently to ensure the RF link is established.

Modulation

The following modulation levels are supported within each of the channel bandwidths
shown above:
QAM256
QAM128
QAM64
QAM32
QAM16
QPSK
The modulation is changed via the management interface using the speed command or
a drop down box in the web interface. Both sides of the link must be changed
independently to ensure the RF link is established.

Mean Squared Error (MSE)

Mean Square Error (MSE) is similar to Signal-to-Noise Ratio (SNR) except that it accounts
for distortion and interference in addition to noise power.
Distortion may come from several sources such as bad Ethernet cables (poor shield,
damaged, or low quality), path degradations such as multipath, or Fresnel zone
encroachment.
Trango Systems, Inc.
25 MHz
27.5/28 MHz
30 MHz
40 MHz
50 MHz
55/56 MHz
80 MHz
GigaPlus User Manual Rev 3.1
32