1. **OFF/DAY/NIGHT Switch:** Applies power and boots the FD when switched from the OFF position. Provides luminance mode control with selections for NIGHT mode and DAY mode.
2. **Universal Control Knob (UCK):** Allows entry of values for: Barometric Altitude (BARO), Heading Bug (HDG), Decision Height (DH), and Course (CRS). More information, [#using-the-universal-control-knob-uck](#using-the-universal-control-knob-uck "mention")
3. **SYNC Button:** When the selection of HDG, DH, or CRS, the respective pilot´s adjustable parameter is matched to the current aircraft parameter. This function is temporarily disabled.
4. **TIMER Button:** Initiates start, stop, and reset of the 24-hour timer. Use Timer controls on the standalone Timer instrument.
5. **DCLT Button:** Not implemented.
6. **MSTR Button:** Allows the operator to sync the CRS and HDG settings from the other flight display.
7. **DSP BRT Button:** Provides overall display brightness control. Use mouse wheel while hovering over buttons to adjust.
8. **FMC Button:** This switch allows selection of the FMC Input channel. On MSFS, a single FMC is simulated, hence it always selects FMC1.
9. **DTC Button:** Inoperative. This switch allows selection of the Data Concentrator, which does not apply to this simulation.
10. **ADC Button:** Inoperative. This switch allows selection of the Air Data Computer, which does not apply to this simulation.
11. **EGI Button:** Displays the Embedded GPS/INS (EGI) popup submenu, which shows the current EGI status, alignment timer, and additional INS-related information.
12. **ATT Button:** Inoperative. This switch allows selection of the Attitude Input Channel, which does not apply to this simulation.
13. **CNT VID Button:** Inoperative. This switch has no function described in the NATOPS manual for this aircraft.
14. **RNG Button:** Allows selection of the range for the MAP Mode on HSI. Use the mouse wheel while hovering over buttons to adjust.
15. **M/T Button:** Magnetic-True selector. Allows the selection of Heading and Course data in Magnetic or True. This function is temporarily disabled.
16. **N/H/T Button:** Selects map mode orientation, NORTH UP, HEADING UP or TRACK UP. This will control both the HSI Map, as well as the MFD Maps.
17. **Turn and Slip Indicator:** Shows the rate of turn and whether the aircraft is in coordinated flight.
18. **BRG2 Selector:** Allows the operator to view the BRG2 source selection menu and select one of the BRG2 sources to drive the BRG2 needle on the HSI or MAP display.
19. **BRG1 Selector:** Allows the operator to view the BRG1 source selection menu and to select one of the BRG1 sources to drive the BRG1 needle on the HSI or MAP display.
20. **NAV Selector:** Allows the operator to view the NAV menu and select one of the navigation sources to drive the NAV needle on the HSI or MAP display.
21. **VID BRT:** Inoperative. This switch has no function described in the NATOPS manual for this aircraft.
22. **MODE Selector:** Allows the operator to toggle between the following HSI display formats. More information, [Primary Display Overview](/miltech-simulations-mh60/aircraft-and-systems/aircraft-displays/primary-display-pd/primary-display-overview.md#hsi-mode)
1. Horizontal situation indicator (HSI)
2. Hover (HVR)
3. Map (MAP)
23. **CRS Button:** Allows the operator to adjust the desired course using the UCK. The range of the CRS bezel value is 000° to 359° with 1° increments. More information, [#using-the-universal-control-knob-uck](#using-the-universal-control-knob-uck "mention")
24. **DH Button:** Allows the operator to adjust the desired Decision Height using the UCK, by 10ft increments. The DH bug is a white circle located on the outside of the RADALT dial. More information, [#using-the-universal-control-knob-uck](#using-the-universal-control-knob-uck "mention")
25. **HDG Button:** Allows the operator to adjust the heading bug value using the UCK. The range of the heading bug value is 000° to 359° with 1° increments. More information, [#using-the-universal-control-knob-uck](#using-the-universal-control-knob-uck "mention")
26. **BARO Button:** Allows the operator to adjust the local barometric pressure settings, using the UCK, in the Kohlsman window. More information, [#using-the-universal-control-knob-uck](#using-the-universal-control-knob-uck "mention")
27. **SYM BRT:** Inoperative. This switch has no function described in the NATOPS manual for this aircraft.
## Using the Universal Control Knob (UCK)
The UCK Knob, located on both Pilot and Copilot PFD Bezels, functions as a multi-purpose rotary control selector for various functions, including selecting Heading, Course, Decision Height and Kollsman BARO.
#### Changing Heading
{% hint style="info" %}
MH60 Autopilot system does not have a "Heading Select" mode. Therefore, the heading bug is only used for visual reference.
{% endhint %}
As a practical example, let's adjust the selected heading using the **Universal Control Knob**:
1. **Press the HDG Button** on the left side of the PFD bezel (**Button #25** on the diagram above).\
This will highlight **"HDG"** near the airspeed tape, indicating that heading selection is now active.
2. **Rotate the UCK** (by clicking and dragging, or using the mouse wheel) to increase or decrease the desired heading.
3. Once the desired heading is set, simply **release the UCK**. After a few seconds of inactivity, the heading selection mode will close automatically, and the **HDG indicator** near the airspeed tape will disappear.
#### Changing Course, Decision Height or Kollsman BARO
You may follow the steps above, pressing **CRS (Button 23), DH (Button 24), or BARO (Button 26)** respectively.
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