Picture of product TRC899

Part #: 805-11900-001

Model: TRC899




Extant Aerospace


Transmitter/Receiver Computer

Part Number :



  • Part of Skywatch HP System
  • Extends the capabilities of Skywatch with greater display and surveillance range, increased closure rates and EFIS interface compatibility
  • Indicates where to look for nearby transponder-equipped aircraft that may pose a collision threat
  • Active Surveillance System
  • Tracks up to 35 intruder aircraft simultaneously
  • Generates both aural & visual traffic advisories
  • Can be certified as a TAS or TCAS I depending on display and antenna configuration
  • Generates both aural & visual traffic advisories
  • Selectable 2 & 6 nautical mile horizontal display ranges
  • +/- 10,000 ft. relative altitude tracking range
  • "Look Up/Look Down" altitude display modes to simplify intruder identification
  • System software updates using a compact flashcard
  • Can toggle between lightning information and traffic information when connected to a Stormscope WX-1000 series processor
  • Automatically shifts to SKYWATCH view from Stormscope view when Traffic Advisories are issued
  • Compatible with most EFIS displays and latest MFDs
  • Uses TCAS-like symbology; Traffic Advisory - solid circle, Other Traffic = open diamond, and text

Please visit the Installation Section of our site to see Skywatch HP installations recently completed by Southeast Aerospace Please complete our Install Quote Request Form (Install RFQ) for installation cost of this item in your aircraft

Additional Skywatch Information Resources: Skywatch Commercial Brochure Skywatch Comparison Brochure Skywatch Military Brochure Skywatch Pilot's Guide 

Temperature Range: -55 to +70C Altitude: 55000 ft. max
Weight: 9.00 lbs. (not including mounting tray) Size: 7.62"H x 3.56"W x 12.52"L
Power Requirements: 18-32VDC, 2 A max. at +28VDC TSO: C118, C147
environmental: DO-160D Cat. [F2X]BAB[SBM]XXXXXXZBABA[RR]L{XXXX}XXA range accuracy: +-0.05 nmi
tracking capability: Up to 35 intruder aircraft (displays only the 8 highest priority aircraft) Altitude Accuracy: +-200 ft.


Part Number R/T Description:
805-11900-001 See description above


- Transmitter/Receiver Computer

NSN: 5826-01-608-1052

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 questions@seaerospace.com

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.

Many avionics systems require a configuration or setup process. This process is required to interface certain avionics systems to other systems in the aircraft that will be inputting or outputting information to and from these systems. Some examples of systems that require a configuration or setup process include:


In addition, most newer technology or solid state systems require configuration via computer interface of some type. A qualified avionics technician should always refer to the appropriate manufacturer's installation manual for complete information and instructions.
No, an STC is not required for TAS (Traffic Awareness) and/or TCAS I installations on Part 91 and Part 135 aircraft. FAA order 8900.1 provides guidance for a follow on field approval by the FAA. An FAA approved Aircraft Flight Manual Supplement is required as well.
Skywatch processors (TRC497 and TRC899) with Software version 1.8 include a Verbal Intruder Positioning (VIP) feature that verbally announces traffic advisories (TA) through the aircraft audio system. In addition to the software update needed for the processor, a panel mounted on/off switch is installed to allow the pilot to turn on and off (mute) the range, relative altitude and relative bearing callout from the aural TAs. The audible "Traffic, Traffic" will always be announced per TSO C-147 ser forth by the FAA.

The Skywatch 497 and Skywatch 899 (HP) are compatible with multiple indicators and displays. The original display interface was the WX-1000 Stormscope display Part Numbers 78-8060-5900-8 and 78-8060-5900-9. A toggle switch was installed between the Stormscope and Skywatch to switch the display between the 2 systems. The Skywatch system can also be interfaced to some weather radar indicators using L3's RGC250/350 series radar graphics computer. The current, most common display option is to interface the Skywatch to modern Multi-Function Displays (MFD) which accept standard traffic information. Some integrated nav/comm systems such as the Garmin GNS430/530 series systems are cabable of displaying traffic information as well.