Furuno FS-1503 - 3. Spectrum

2-4
3. Spectrum
1.5
455
456.5
54000
54455
F
F + 1.5
F + 54456.5
1.5 kHz
455 kHz 54455 kHz
TX 1st mod./RX 3rd conv. TX 2nd mod./RX 2nd conv.
TX 3rd mod./RX 1st conv.
TX signal
(3Lo)
(2Lo)
(1Lo)
1.5
455
456.5
54000
54455
F
F + 1.5
F + 54456.5
RX signal
(3Lo)
(2Lo)
(1Lo)
kHzkHz
J3E TX
J3E RX
1.5
455
456.5
54000
54455
F
F + 1.5
F + 54456.5
TX signal
(3Lo)
(2Lo)
(1Lo)
1.5
455
456.5
54000
54455
F
F + 1.5
F + 54455
RX signal
(2Lo)
(1Lo)
kHzkHz
H3E TX
H3E RX
Carrier added
F - 1.5
453.5
54456.5
54453.5
54456.5