User`s manual

100-M0058X2 8 of 13
www.cobham.com/gms
3.1.3.1 TX COFDM MODE display
This display allows user to choose from three available COFDM modes, QPSK, 16QAM or 64QAM.
UP ↑ Toggles between QPSK, 16QAM and 64QAM
DOWN ↓ Toggles between QPSK, 16QAM and 64QAM
ENTR Saves new value selected
CTRL Changes to the TX COFDM BANDWTH display
3.1.3.2 TX COFDM BANDWTH display
COFDM bandwidth can be adjusted from this display selecting from 6, 7 or 8 MHz.
UP ↑ Toggles between 6, 7 or 8 (MHz)
DOWN ↓ Toggles between 6, 7 or 8 (MHz)
ENTR Saves new value selected
CTRL Changes to the TX GUARD INTERVL display
3.1.3.3 TX GUARD INTERVL display
Guard interval options, 1/32, 1/16,1/8 and ¼ are selected from this display.
UP ↑ Toggles between 1/32,1/16,1/8 and 1/4
DOWN ↓ Toggles between 1/32,1/16,1/8 and 1/4
ENTR Saves new value selected
CTRL Changes to the TX MOD FEC display
3.1.3.4 TX MOD FEC display
FEC (Forward Error Correction) code rates, ½,2/3,3/4,5/6, and 7/8 are selected from this display.
UP ↑ Toggles between ½,2/3,3/4,5/6,7/8
DOWN ↓ Toggles between ½,2/3,3/4,5/6,7/8
ENTR Saves new value selected
CTRL Changes to the TX VIDEO INPUT display
TX COFDM MODE
QPSK
TX COFDM BANDWTH
8MHz
TX GUARD INTERVL
1/16
TX MOD FEC
1/2