Radio Stack Units

TRC Simulators Radio Stack Units for Flight Simulation are so realistic that you can hardly tell the difference between the simulated Radio Stack units and the real Bendix King Silver Line products. Modelled after the most popular Radio Stack, as used in the Cessna 172 Skyhawk*, all details are precisely reproduced extremely close to the exact dimensions of the original radios.

The radio stack units are constructed as a modular system. Each radio is a separate module and connected via a ribbon cable to the Radio Stack Controller Board, a microprocessor board which connects to your PC via USB running Flight Simulator Software. You can therefore change the order of how the radios fit in your panel.
The following radio stack units are available:

  • KMA28 Audio Panel
  • KX155A NAV/COM1
  • KX155A NAV/COM2
  • KN62A DME
  • KT76CT Transponder
  • KR87 ADF
  • KAP140 Autopilot
  • Radio Stack Controller Board (RSC)
  • radio stack units
    KMA28 Audio Panel
    The functionality of the simulated KMA28 Audio Amplifier/Intercom/Marker Beacon Receiver is extremely close to the original product. Users can identify which receivers are selected by noting which of the green switch LEDs are illuminated. Push buttons labeled Nav 1, Nav 2, DME, MKR (Marker), ADF, AUX (auxiliary), and SPR (Speaker) are “latched” type switches (the latching function is indicated by a led).

    KX155A/165A NAV/COM
    The RSC372 Radio Stack is equipped with two KX155A/165A radios. The unit has a so-called CDI (Course Deviation Indicator). The vertical “needle” moves side to side similar to a mechanical CDI. When the needle is centered, the aircraft is on the selected OBS course. When the active frequency is tuned to a VOR frequency, the center of the CDI scale displays the “TO” or “FROM” indicator.

    KN62A DME
    The unit is channeled internally with its own two concentric frequency selection knobs. The smaller of the two knobs has an “in” and an “out” position. When in the “in” position, this smaller knob changes the 0.1 MHz digit (0.0, 0.1, 0.2, etc.). When pulled “out”, it adds 0.05 MHz to the frequency and tunes in 0.1 MHz steps (0.05, 0.15, 0.25, etc.). The outer, larger knob changes the larger digits (1 MHz, 10 MHz).

    KT76CT Transponder
    Like other Mode A/Mode C transponders, the KT 76C replies with any one of 4,096 codes, which differ in the position and number of pulses transmitted. By “replying” to ground transmissions, your KT 76C enables ATC computers to display aircraft identification, altitude and ground speed on Enroute, Approach or Departure Control radar screens. When the IDENT button is pressed, your aircraft will be positively identified to the Air Traffic Controller. The KT 76C also displays Flight Level Altitude, marked by the letters “FL” and a number in hundreds of feet, on the left side of the display.

    KR87 ADF
    The active frequency (to which the ADF is tuned) is displayed in the left side of the window at all times. A standby frequency is displayed in the right side when “FRQ” is annunciated. The standby frequency is placed in “blind” memory when either FLT (Flight Time) or ET (Elapsed Time) mode is selected. With “FRQ”on, the standby frequency is selected using the frequency select knobs which may be rotated either clockwise or counterclockwise. Pull the small inner knob out to tune 1’s. Push the smaller inner knob in to tune 10’s. The outer knob tunes the 100’s and the 1000’s up to 1799.

    KAP140 Autopilot
    The TRC autopilot simulator is based on the KAP 140 Autopilot System from Honeywell, which is a rate based digital autopilot system offering smooth performance and enhanced features found only in more expensive autopilots. This system brought digital technology and reliability into the light aircraft cockpit. Internal monitors keep constant track of the KAP 140’s status and provide for automatic shutdown of the autopilot or trim system in the event of a malfunction.

    Radio Stack Controller Board (RSC)
    The Radio Stack Controller is a micro computer board which connects to your PC (running Flight Simulator Software) via USB. The board has 10 connectors which receive the ribbon cables leading to each separate radio stack module. It also has a provision to connect rotary encoders for Altimeter Pressure Adjustment, VOR1, VOR2, ADF, Heading Indicator and Heading Bug. These rotary encoders can be used when you would like to use the Radio Stack together with a TFT screen which displays the gauges. When using TRC / Simkits gauges, you will not use these inputs.

    radiostackunits2
    The dimensions of the Radio Stack Units
    KMA28 Audio Panel: (WxDxH): 160x50x38 mm. / 6.3×1.968×1.496”
    KX155A/165A NAV/COM: (WxDxH): 160x50x52 mm. / 6.3×1.968×2.047”
    KN62A DME: (WxDxH): 160x50x39 mm. / 6.3×1.968×1.535”
    KAP140 Autopilot: (WxDxH): 160x50x44 mm. / 6.3×1.968×1.732”
    KR87 ADF: (WxDxH): 160x50x39 mm. / 6.3×1.968×1.535”
    KT76C Transponder: (WxDxH): 160x50x44 mm. / 6.3×1.968×1.732”

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