Changes between Version 28 and Version 29 of Hardware/bDomains/cSandboxes/dSB4

Timestamp:

Jan 10, 2013, 10:56:44 PM (11 years ago)

Author:

Ilya Chigirev

Comment:

—

Hardware/bDomains/cSandboxes/dSB4

@@ -1 +1 @@
 [[TOC(Hardware/gDomains*)]]
 
-== SB4 ==
+==== SB4 ====
 
 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 are 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:Software/bAM/mInstr Instrumentation AM].
@@ -22 +22 @@
 This configuration creates two distinct set of RF paths that are used to create various topologies.
 
-=== Node to Node RF Path ===
+===== Node to Node RF Path =====
 
 s12 parameters taken with Agilent ENA RF Network Analyzer E5070; instrument dynamic range of 110 dB limits the accuracy of large attenuation results.
@@ -31 +31 @@
 || [[Image(S12-A-24.jpg, 250px)]] || [[Image(S12-A-25.jpg, 250px)]] || [[Image(S12-A-52.jpg, 250px)]] ||
  
-=== Node to WiMAX basestation RF Path ===
+===== Node to WiMAX basestation RF Path =====
 
 [[Image(SB4-Equiv-WiMAX.jpg)]]
 
 [[Image(S12-B-25.jpg, 400px)]]
-