Part #: 622-4022-001

Model: WXT-250A




Collins Aerospace


Radar Tranceiver

Part Number :

WXR-270 system image shown, WXT-250A R/T located on left side of image
  • Radar Receiver-Transmitter used in WXR-270 Color Radar System
  • Compact and lightweight at 8.8 lbs.
  • 5 kw nominal transmitter power with 250-nautical mile range
Environmental: DO-138, AA/JN/AAAXXXXXX TSO: TSO-C63b, class 7
Altitude: 51000 ft. Dimensions: 4.980"H x 4.980"W x 12.535"L
Weight: 8.8 lbs. Transmitter Power: 5 kW nominal
IF bandwidth: Long range= 600kHz; Short range= 1.5 MHz STC: 25 nmi (12" antenna)
Power Requirements: +27.5VDC, +-10%, 3.75A nominal operating Time Delay: 60 to 80 seconds
Operating Frequency: 9345 +-30 MHz PRR: 120 Hz pulse repetition rate
Part NumberRadar Receiver-Transmitter Description:
622-4022-001 see details above


- Radar Transceiver

NSN: 5895-01-304-3879

Price Condition Status

Click on a question below to see the answer. If you have a question about this model that is not answered below, please contact

In relation to NE (New) parts, many OEMs change their prices and availability without any notice to dealers or the industry. Therefore, through the REQUEST or RFQ indication, we ask that customers contact us for the most accurate price and availability.

In relation to SV & OH parts, the used parts aftermarket in the aviation industry is not an infinite supply. It is a dynamic, constantly changing market that is significantly affected by and susceptible to highs and lows in supply and demand. Therefore, although we attempt to, at times, we are unable to predict the exact moment when an item may be available. Once again, through the REQUEST or RFQ indication on our website, we ask that customers contact us for the most current and accurate price and availability.

No, the Collins radar transceivers are not compatible with the KMD-850 Multi Function Display.
Yes, with the addition of the Avtech Digital Switching Unit (DSU) P/N 6001-1-1. List price for this unit is approximately $12000.
Weather radar transceivers use a magnetron which is basically a cathode emission device. The magnetron is subject to deteriorization due to aging. Therefore, it is recommended to perform some type of periodic maintenance to detect and correct the effects of aging. This reduces the chance of an in-service failure.

An annual, routine test of the following parameters should made:

- Power output
- Transmitter frequency
- AFC voltage
- Sensitivity (MDS)

Ideally, the test should take place between December and March prior to the peak thunderstorm season.

Negotiating the exchange price of a unit only limits the allowable repair cap for the core unit. Southeast Aerospace's exchange transactions are based on the return of economically repairable core unit. Once the core is received and evaluated, the core repair cost incurred by SEA cannot exceed 75% of the original exchange price. That is, it cannot cost SEA more than 75% of the original OH/SV exchange price collected from the customer. Therefore, when and if an SEA exchange price is discounted, there is a risk that additional charges may be assessed once the core is returned and evaluated.