Datum Systems PSM-500L Manual do Utilizador descarregar pdf (Página 37)

Datum Systems, Inc. PSM-500 Modem Remote Control Protocol

Rev 0.93 12/12/10

B-37

Demod IF, Command [81h]

Read Change Flags

Bit 0

Bit 1

Bit 2

Bit 3

Bit 4

Bit 5

Bit 6

Bit 7

Byte 0

Freq

SwpRng

SwpMd

SwpTm

Mod

Spectrum

Filter

Mode

Byte 1

Preamble

LowEb

LowLvl

Imped

Spare

Byte 2

Spare

Byte 3

Spare

Demod IF, Read Flags

Bit 0

Bit 1

Bit 2

Bit 3

Bit 4

Bit 5

Bit 6

Bit 7

Byte 4

SwpMd

Mod0

Mod1

Mod2

Mod3

SpcInv

Filter0

Filter1

Byte 5

Mode0

Mode1

Mode2

Mode3

PreLng0

PreLng1

PreLng2

PreLng3

Byte 6

ImpSel

Spare

Byte 7

Spare

Demod IF, Read Bytes

Bytes 8-11

CXR Frequency, 32b, (50,000,000 to 90,000,000 for 70 MHz units, 100,000,000 to

180,000,000 for 140 MHz units or 950,000,000 to 1,900,000,000 MHz for L-Band units if the

LNB LO frequency = 0), 1Hz Increments

Bytes 12-13

CXR Frequency, Reserved for L-Band Frequency Extension if LNB LO not = 0. Note 1

Bytes 14-17

Sweep Range, 32b, (100 to 1,250,000), 1Hz Increments

Bytes 18-19

Sweep Time, 16b, (0 to 6,000), 100ms Increments, 0=Narrow Disabled

Bytes 20-21

Low Eb/No, 16b, (10 to 200), 0.1dB Increments

Bytes 22-23

Low Level, Signed 16b, (-850 to –80), 0.1dB Increments (Dependent on Symbol Rate)

Bytes 24-37

Spare

Demod IF, Write Enable Flags

Bit 0

Bit 1

Bit 2

Bit 3

Bit 4

Bit 5

Bit 6

Bit 7

Byte 0

Freq

SwpRng

SwpMd

SwpTm

Mod

Spectrum

Filter

Mode

Byte 1

Preamble

LowEb

LowLvl

Imped

Byte 2

Byte 3

Demod IF, Write Flags

Bit 0

Bit 1

Bit 2

Bit 3

Bit 4

Bit 5

Bit 6

Bit 7

Byte 4

SwpMd

Mod0

Mod1

Mod2

Mod3

SpcInv

Filter0

Filter1

Byte 5

Mode0

Mode1

Mode2

Mode3

PreLng0

PreLng1

PreLng2

PreLng3

Byte 6

ImpSel

Spare

Byte 7

Spare

Demod IF, Write Bytes

Bytes 8-11

CXR Frequency, 32b, (50,000,000 to 90,000,000), 1Hz Increments

Bytes 12-13

CXR Frequency, Reserved for L-Band Frequency Extension

Bytes 14-17

Sweep Range, 32b, (100 to 1,250,000), 1Hz Increments

Bytes 18-19

Sweep Time, 16b, (0 to 6,000), 100ms Increments, 0=Narrow Disabled

Bytes 20-21

Low Eb/No, 16b, (10 to 200), 0.1dB Increments

Bytes 22-23

Low Level, Signed 16b, (-850 to –80), 0.1dB Increments (Dependent on Symbol Rate)

Bytes 24-37

Spare

[SwpMd] = Demod Sweep Mode, 1b, 0=Normal, 1=Search

1 2 ... 32 33 34 35 36 37 38 39 40 41 42 ... 56 57

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