Dual Polarization Upgrade
description
Transcript of Dual Polarization Upgrade
![Page 1: Dual Polarization Upgrade](https://reader036.fdocuments.net/reader036/viewer/2022070421/5681626a550346895dd2db38/html5/thumbnails/1.jpg)
A Hardware Perspective
DUAL POLARIZATION UPGRADE
![Page 2: Dual Polarization Upgrade](https://reader036.fdocuments.net/reader036/viewer/2022070421/5681626a550346895dd2db38/html5/thumbnails/2.jpg)
EXISTING WSR-88D ANTENNA
A vast majority of the dual polarization components are being mounted to the counterweights thus all of that hardware must be hoisted up into the radome.
![Page 3: Dual Polarization Upgrade](https://reader036.fdocuments.net/reader036/viewer/2022070421/5681626a550346895dd2db38/html5/thumbnails/3.jpg)
LEFT SIDE OF ANTENNA
Major component added to the antenna counterweight is the RF Pallet.
![Page 4: Dual Polarization Upgrade](https://reader036.fdocuments.net/reader036/viewer/2022070421/5681626a550346895dd2db38/html5/thumbnails/4.jpg)
View from rear of antenna
Antenna counterweight
![Page 5: Dual Polarization Upgrade](https://reader036.fdocuments.net/reader036/viewer/2022070421/5681626a550346895dd2db38/html5/thumbnails/5.jpg)
RIGHT SIDE OF ANTENNA
Major component added is the Antenna Mounted Electronics assembly.- Receiver, BITE/Calibration, Processor, Cooler/Heater, Power Supply
![Page 6: Dual Polarization Upgrade](https://reader036.fdocuments.net/reader036/viewer/2022070421/5681626a550346895dd2db38/html5/thumbnails/6.jpg)
CLOSE UP DIAGRAMS OF ANTENNA MOUNTED ELECTRONICS (AME) ASSEMBLY.
Assembly box is mounted on right side of antenna counterweights.
![Page 7: Dual Polarization Upgrade](https://reader036.fdocuments.net/reader036/viewer/2022070421/5681626a550346895dd2db38/html5/thumbnails/7.jpg)
FRONT OF ANTENNA
All new complex feedhorn must be mounted to the front of the antenna to transmit and receive dual polarization signal.
![Page 8: Dual Polarization Upgrade](https://reader036.fdocuments.net/reader036/viewer/2022070421/5681626a550346895dd2db38/html5/thumbnails/8.jpg)
Rearview of unmodified antenna
..with climate-controlled equipment pallet installed..
..second equipment pallet that divides the signal installed..
..requires new feedhorn and support struts..
First operational NEXRAD with Dual-Pol modification at Vance Air Force Base
Installation of Dual Polarization includes significant modification to the NEXRAD antenna, as well as software to process the Dual-Polarization data
REVIEWNEXRAD Dual Pol Modification
![Page 9: Dual Polarization Upgrade](https://reader036.fdocuments.net/reader036/viewer/2022070421/5681626a550346895dd2db38/html5/thumbnails/9.jpg)
WSR-88D RADAR PRIOR TO UPGRADE
WSR-88D RADAR AFTER
UPGRADE
![Page 10: Dual Polarization Upgrade](https://reader036.fdocuments.net/reader036/viewer/2022070421/5681626a550346895dd2db38/html5/thumbnails/10.jpg)
FINAL THOUGHTS• All of the waveguide (conduit for transmitting and
receiving signal) must be replaced and doubled.
• Hardware components installed in the radome weigh 400-700 pounds.
• All new software must be installed and tested.
• In short, this is the most significant upgrade to the WSR-88D since it was deployed in the mid to late 90’s.