Changes between Version 23 and Version 24 of Hardware/bDomains/cSandboxes/dSB4
- Timestamp:
- Mar 10, 2012, 7:58:55 PM (13 years ago)
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Hardware/bDomains/cSandboxes/dSB4
v23 v24 5 5 As shown in Figure 1, sandbox 4 consists of 9 nodes and a WiMAX subsystem that consists of a basestation and a controller. To prevent interference, each node is housed in [http://www.ramseytest.com/ Ramsey Electronics RF enclosure] that provides 80 dB of isolation. There are 8 nodal wireless devices (with Atheros 5000X mini-PCI card and Intel 6250 mini-PCIe 802.11/802.16); these connected to a power combiner and 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]. This configuration enables fairly tight control of RF attenuation matrix between the nodes. The topology is controlled through the [http://omf.mytestbed.net OMF] based [wiki:Documentation/Services/bInstrumentationControlService Instrumentation AM]. 6 6 7 || [[Image(SB4. 1.jpg, 600px, link=, align=center)]] || [[Image(IMG_0376.jpg, 200px)]] ||7 || [[Image(SB4.jpg, 600px, link=, align=center)]] || [[Image(IMG_0376.jpg, 200px)]] || 8 8 9 9 == RF Matrix Control Services ==