Icom iC-7850 Instruction Manual page 104

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D About the BPSK and QPSK modes
The BPSK and QPSK modes are selectable in the
PSK31 mode.
• The BPSK (Binary Phase Shift Keying) mode is the
most commonly used mode.
• The QPSK (Quadrature Phase Shift Keying) mode
has error correction capability to provide better de-
coding than the BPSK mode in marginal conditions.
However, more accurate tuning is required with
the QPSK mode, due to the tight phase margin of
QPSK.
Display the PSK decode screen, then push
q
[<MENU1>](F).
DECODE [F-3]  <MENU1> [F-1]  Displays <MENU2>
• The function menu changes to Menu 2.
Push [B/QPSK](F).
w
• Toggles between the BPSK and QPSK modes.
D About the BPSK31 and BPSK63 modes
The BPSK31 and BPSK63 modes are selectable for
the BPSK mode.
Display the PSK decode screen, then push
q
[<MENU1>](F).
DECODE [F-3]  <MENU1> [F-1]  Displays <MENU2>
• The function menu changes to Menu 2.
Push [31/63](F).
w
• Toggles between the BPSK31 and BPSK63 modes.
• When the QPSK mode is selected, the BPSK63 mode
cannot be selected.
RECEIVE AND TRANSMIT
(F) Function keys
• PSK decode screen (MENU2)
"
(F) Function keys
• PSK decode screen (MENU2)
5-27
[EXIT/SET]
" or " " is displayed
[EXIT/SET]
" " or " " is displayed
5