Bascom Hunter’s DVB-S2X Modem VPX Card is a SOSA-aligned 3U VPX card that implements a modem for DVB-S2X. Digital data in both directions use the Digital Intermediate Frequency Interoperability (DIFI) v1.2 packet standard over a 40G Ethernet interface. Analog data is tunable over the L-Band frequency range. This high-performance card supports up to 125MSymbols/sec of data traffic and is easily configured using a network-accessed GUI or SCPI commands. The modem design uses a Xilinx/AMD RFSOC based on the Abaco VP431 VPX card.

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KEY FEATURES

› Xilinx/AMD Zynq UltraScale+ Gen3 RFSOC
› 14-bit ADCs/DACs with 5GSamples/sec sample rate
› Up to 125MSymbols/sec of data throughput in each direction
› Support for DVB-S2/DVB-S2X Normal Frames (64,800 bits) and Short Frames (16,200 bits)
› Supported modulations include QPSK, 8-PSK, 8-APSK, 16-APSK, 32-APSK, 64-APSK, 128-APSK, and 256-APSK
› Digital Data I/O in DIFI (IEEE-ISTO Std 4900-2021) v1.2 packet standard
› Analog Data I/O in L-Band frequency range, tunable
› Nominal Input Power of +10dBm into 50-ohms
› Maximum Input Power of +2dBm (with internal ADC input attenuation)
› Nominal Output Power of -5dBm into 50-ohms

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VPX FORM FACTOR
  • SOSA-Aligned 3U VPX form factor
  • SLT3-PAY-1F1U1S1S1U1U2F1H-14.6.11-x slot profile
  • Conduction-cooled, 1”slot pitch
  • Backplane Connectivity
  • Data Plane: 40G-KR4, 10G-KR
  • Control Plane: 1G-KX x2
  • Expansion Plane: Gen 3 x4
  • RF I/O: VITA 66.5 P2A/P2B
OPERATING TEMPERATURE
0C to 70C (conduction-cooled VPX)
POWER
~39 W typical (12V @ 3.2A)
RF / L-Band
Nominal Input Power +10dBm into 50-ohms
Maximum Input Power +2dBm (with internal ADC input attenuation)
Nominal Output Power -5dBm into 50-ohms
DVB-S2X / DVB-S2
Symbol Rate Up to 125MSymbols/sec in each direction
Frames Normal (64,800 bits) and Short (16,200 bits)
Modulations / Coding QPSK, 8-PSK, 8-APSK,16- APSK, 32-APSK, 64-APSK, 128-APSK, and 256-APSK