Difference between revisions of "Hardware Overview"

From EOVSA Wiki
Jump to: navigation, search
(Frontend System)
(Frontend System)
Line 1: Line 1:
 
== Frontend System ==
 
== Frontend System ==
[[File:Feed_package.png|thumb|right|150px|Two perspective views of the 2.1-m antenna front end feed package]]
+
[[File:Feed_package.png|thumb|right|150px|'''Figure 1:''' Two perspective views of the 2.1-m antenna front end feed package]]
The front end system consists of a broadband (1-18 GHz) dual-polarization log-periodic crossed-dipole feed, and a thermally-controlled RF box (called the FEM, or Front End Module) that houses the amplifiers, calibration noise source (noise diode), attenuators, and optical transmitters needed to control the gain of the system and supply the two RF signals multiplexed onto a single optical fiber output.
+
The front end system ('''Figure 1''') consists of a broadband (1-18 GHz) dual-polarization log-periodic crossed-dipole feed, and a thermally-controlled RF box (called the FEM, or Front End Module) that houses the amplifiers, calibration noise source (noise diode), attenuators, and optical transmitters needed to control the gain of the system and supply the two RF signals multiplexed onto a single optical fiber output.
  
  
[[File:Eovsa_front_end_block_diagram.png|thumb|right|600px|Front End]]
+
[[File:Eovsa_front_end_block_diagram.png|thumb|right|300px|'''Figure 2:''' The complete block diagram for the Front End Module (FEM) housed in the RF box]]
The complete block diagram for the Front End Module (FEM) housed in the RF box.
+
The block diagram for the FEM is shown in '''Figure 2'''.
  
 
== Downconverter System ==
 
== Downconverter System ==

Revision as of 16:07, 3 March 2017

Frontend System

Figure 1: Two perspective views of the 2.1-m antenna front end feed package

The front end system (Figure 1) consists of a broadband (1-18 GHz) dual-polarization log-periodic crossed-dipole feed, and a thermally-controlled RF box (called the FEM, or Front End Module) that houses the amplifiers, calibration noise source (noise diode), attenuators, and optical transmitters needed to control the gain of the system and supply the two RF signals multiplexed onto a single optical fiber output.


Figure 2: The complete block diagram for the Front End Module (FEM) housed in the RF box

The block diagram for the FEM is shown in Figure 2.

Downconverter System

Downconverter

Digital Correlator

Digital Correlator