Changes between Version 42 and Version 43 of Hardware/bDomains/cSandboxes/dSB4


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Timestamp:
Jul 3, 2019, 10:54:31 PM (5 years ago)
Author:
jkol
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  • Hardware/bDomains/cSandboxes/dSB4

    v42 v43  
    22[[TOC(Hardware, Hardware/bDomains, Hardware/bDomains/cSandboxes*, depth=6)]]
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    4 As shown in Figure 1, sandbox 4 consists of 10 nodes and two LTE and two WiMAX basestations and corresponding BS controllers. To prevent interference, each node is housed in [http://www.ramseytest.com/ Ramsey Electronics RF enclosure] that provides 80 dB of isolation. Each of the 9 nodes is equipped with a pair of !WiFi devices: one Atheros 5000X mini-PCI card and one Intel 6250 mini-PCIe 802.11/802.16. The antenna ports of the !WiFi adapter in each node are attenuated (-15dB) and connected to a power combiner (-6dB) before being fed through the enclosure access port to the outside SMA connector which is wired to one of the input/output ports of the [http://www.jfwindustries.com/documents/50PMA-012_specsheet.pdf RF Transceiver Test System] from [http://www.jfwindustries.com JFW Industries]. Four nodes are also equipped with [wiki:Hardware/fDevices/cSDR/gUSRP#USRPB205  USRP B205mini-i] SDR devices with their TX/RX and RX2 ports selectively connectable to the attenuator matrix as shown in the diagram below. This configuration enables fairly tight control of RF attenuation between the nodes. The topology (including pairwise attenuation between ports and selection switches for !WiFi/SDR) is controlled through the [http://omf.mytestbed.net OMF] based [wiki:/Software/eAM/mInstr Instrumentation AM].
     4As shown in Figure 1, sandbox 4 consists of 10 nodes and two LTE and two WiMAX basestations and corresponding BS controllers. To prevent interference, each node is housed in [http://www.ramseytest.com/ Ramsey Electronics RF enclosure] that provides 80 dB of isolation. Each of the 9 nodes is equipped with a pair of !WiFi devices: one Atheros 5000X mini-PCI card and one Intel 6250 mini-PCIe 802.11/802.16. The antenna ports of the !WiFi adapter in each node are attenuated (-15dB) and connected to a power combiner (-6dB) before being fed through the enclosure access port to the outside SMA connector which is wired to one of the input/output ports of the [attachment:50PMA-012_specsheet.pdf RF Transceiver Test System] from [http://www.jfwindustries.com JFW Industries]. Four nodes are also equipped with [wiki:Hardware/fDevices/cSDR/gUSRP#USRPB205  USRP B205mini-i] SDR devices with their TX/RX and RX2 ports selectively connectable to the attenuator matrix as shown in the diagram below. This configuration enables fairly tight control of RF attenuation between the nodes. The topology (including pairwise attenuation between ports and selection switches for !WiFi/SDR) is controlled through the [http://omf.mytestbed.net OMF] based [wiki:/Software/eAM/mInstr Instrumentation AM].
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    66  || [[Image(SB4.png, 700px, align=center)]] || [[Image(IMG_0376.jpg, 200px)]] ||