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Model Number: WU450
Description: RADAR RTA
Manufacturer HONEYWELL
Alternate Part Number
National Stock Number
Categories Radar Equipment
Repair Capabilities YES
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Product Details

The WU-450 Receiver Transmitter Antenna (RTA) is an integrated unit which incorporates transmitter, receiver, and antenna into a single unit. The WU-450 accepts either a 10 inch or 12 inch flat-plate radiator with transmitter and receiver components mounted on the rear of the antenna. The remainder of the circuitry is contained in the electronics package which forms the RTA base. The WU-450 is designed for cantilever mounting on the front bulkhead of the aircraft with line-of-sight stabilization employed. The WU-450 incorporates all the circuits required for transmission, reception, signal processing, scan conversion, serial data and control interface. The WU-450 also interfaces with the electronic flight instrument system (EFIS) and with the multifunction flight display (MFD). The WU-450 generates and receives X-band high energy to detect weather and to map ground features. The 9345 MHz transmitted signal from the magnetron is routed to the antenna through the circulator. The selected range of the WU-450 is determined by the pulse width (PW) and pulse repetition frequency (PRF). The size of the radiator (flat-plate antenna) determines the maximum range with a 12 inch radiator the range is 325 nautical miles and with a 10 inch radiator the range is 280 nautical miles.

The WU-450 is used in the Primus 450 Color Radar System. This systems makes up a lightweight, two-box, X-band alphanumeric digital radar with display designed for weather location and analysis, and for ground mapping. The display for the system can be either a dedicated radar indicator or the radar system can be operated in conjunction with EFIS and MFD equipment. This system detects storms along the flight path of the aircraft and gives the pilot a colored visual indication of storm intensity. In weather detection mode, target returns are displayed at one of five video levels. In ground mapping mode, video levels of increasing reflectivity are displayed as black, cyan, yellow, and magenta.

Part Number Differences:
Part NumberVibration CategoryRadiator AssemblyEFIS OutputARINC 429 StabAnalog StabSuppression OutputEnhanced EMC
7008470-721JL10 inchesYesYesYesYesNo
7008470-722JL12 inchesYesYesYesYesNo
7008470-801CM10 inchesYesNoYesNoYes
7008470-802CM12 inchesYesNoYesNoYes
7008470-811JL10 inchesYesNoYesNoYes
7008470-812JL12 inchesYesNoYesNoYes
7008470-821JL10 inchesYesYesYesYesYes
7008470-822JL12 inchesYesYesYesYesYes
7008470-804CM12 inchesNoNoNoYesYes
7008470-813JL10 inchesNoNoNoNoYes
7008470-814JL12 inchesNoNoNoNoYes
7008470-823JL10 inchesYesNoYesNoYes
7008470-824JL12 inchesYesNoYesNoYes
7008470-903CM10 inchesNoNoNoYesNo
7008470-904CM12 inchesNoNoNoYesNo
7008470-913JL10 inchesNoNoNoYesNo
7008470-914JL12 inchesNoNoNoYesNo
7008470-923JL10 inchesYesNoNoNoNo
7008470-924JL12 inchesYesNoNoNoNo
7008470-831JL10 inchesYesYesYesYesYes
7008470-832JL12 inchesYesYesYesYesYes
7008470-901CM10 inchesYesNoYesNoNo
7008470-902CM12 inchesYesNoYesNoNo
7008470-911JL10 inchesYesNoYesNoNo
7008470-912JL12 inchesYesNoYesNoNo
7008470-921JL10 inchesYesYesYesNoNo
7008470-922JL12 inchesYesYesYesNoNo
7008470-803CM10 inchesNoNoNoYesYes