Frame (DVB-S2/S2X)

Menu Path: MeasSetup > DVB-S2/S2X Demod Properties... > Frame Definition tab

Frame is a parameter group within the Frame Definition tab containing the following parameters:

Standard selects the DVB-S2 or DVB-S2X standard.

Default: DVBS2

Choices: DVBS2, DVBS2X

Symbol Rate sets the frame symbol rate in Hz.

Default: 1 GHz Gigahertz: A frequency measurement which equals one billion hertz.

Roll-off Factor sets the roll-off factor. Standard roll-off factors are α = 0.35, 0.25, 0.20, 0.15, 0.10 and 0.05 per ETSI European Telecommunications Standard Institute: The European standardization body for telecommunications. EN 302 307-1 [3], clause 5.6, although other values may be entered.

Default: 0.35

FECFrame Type determines sthe FECFrame type.

• Normal - Sets the FECFame size to Medium (64,800 bits)
• Short - Sets the FECFame size to 32,400 bits (Short)
• Medium - Sets the FECFame size to 64,800 bits (Medium)

Default: Normal

Choices: Normal, Short, Medium

MODCOD selects the S2X modulation as specified in Table 17a of the ETSI EN 302 307-2 V1.2.1 (2020-08) standard document.

• Dummy
• QPSK Quadrature phase shift keying-1/4
• QPSK-1/3
• QPSK-2/5
• QPSK-1/2
• QPSK-3/5
• QPSK-2/3
• QPSK-4/5
• QPSK-5/6
• QPSK-8/9
• QPSK-9/10
• 8PSK-3/5
• 8PSK-2/3
• 8PSK-3/4
• 8PSK-4/5
• 8PSK-5/6
• 8PSK-8/9
• 8PSK-9/10
• 16APSK-2/3
• 16APSK-3/4
• 16APSK-4/5
• 16APSK-5/6
• 16APSK-8/9
• 16APSK-9/10
• 32APSK-3/4
• 32APSK-4/5
• 32APSK-5/6
• 32APSK-8/9
• 32APSK-9/10
• QPSK-2/9
• Pi/2-BPSK Binary phase shift keying - A type of phase modulation using 2 distinct carrier phases to signal ones and zeros.-1/5
• Pi/2-BPSK-11/45
• Pi/2-BPSK-1/3
• Pi/2-BPSK-4/15
• QPSK-13-45
• QPSK-9/20
• QPSK-11/20
• 8APSK(2/4/2)-100/180
• 8APSK(2/4/2)-104/180
• 8PSK-23/36
• 8PSK-25/36
• 8PSK-13/18
• 16APSK(8/8)-90/180
• 16APSK(8/8)-96/180
• 16APSK(8/8)-100/180
• 16APSK(4/12)-26/45
• 16APSK(4/12)-3/5
• 16APSK(8/8)-18/30
• 16APSK(4/12)-28/45
• 16APSK(4/12)-23/36
• 16APSK(8/8)-20/30
• 16APSK(4/12)-25/36
• 16APSK(4/12)-13/18
• 16APSK(4/12)-140/180
• 16APSK(4/12)-154/180
• 16APSK(4/12)-2/3
• 32APSK(4/8/4/16)-128/180
• 32APSK(4/8/4/16)-132/180
• 32APSK(4/8/4/16)-140/180
• 64APSK(16/16/16/16)-128/180
• 64APSK(4/12/20/28)-132/180
• 64APSK(8/16/20/20)-7/9
• 64APSK(8/16/20/20)-4/5
• 64APSK(8/16/20/20)-5/6
• 128APSK-135/180
• 128APSK-140/180
• 256APSK-116/180
• 256APSK-20/30
• 256APSK-124/180
• 256APSK-128/180
• 256APSK-22/30
• 256APSK-135/180
• QPSK-11/45 Short
• QPSK-4/15 Short
• QPSK-14/45 Short
• QPSK-7/15 Short
• QPSK-8/15 Short
• QPSK-32/45 Short
• 8PSK-7/15 Short
• 8PSK-8/15 Short
• 8PSK-26/45 Short
• 8PSK-32/45 Short
• 16APSK(4/12)-7/15 Short
• 16APSK(4/12)-8/15 Short
• 16APSK(4/12)-26/45 Short
• 16APSK(4/12)-3/5 Short
• 16APSK(4/12)-32/45 Short
• 32APSK(4/12/16)-2/3 Short
• 32APSK(4/12/16)-32/45 Short

Default: 128APSK Normal 135/180

Pilot Insertion enables or disables pilot insertion per ETSI EN 302 307-1, clause 5.5.3.

Default: Enabled

See Also

Frame Definition Tab

Measurement Control Tab

Carrier Aggregation Tab