PRE-Flight USBCHK Help

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PRE-Flight USBCHK Help

USBCHK ver 1.1a - file size is about 80KB.

Click here to download the curent version.

Or right-click on the link above and select Save Link...

USBCHK is freeware - please distribute freely.

Important Notes:

  • Before running USBCHK, connect your USB controller to the PC.
  • This program will not detect the PRE-Flight USB Interface
  • USBCHK is a freeware program to check your USB cable or USB controller and see if it actually is suitable for controlling an application (flight simulators, etc.). If USBCHK is used in conjunction with the provided Help Information (Click on the Help Button), it can also provide basic information like how many and which channels are available, as well as how accurate and how reliable the channels are. Given the huge number of brands of USB cables and the number of possible transmiters which can connect to them, there are literally hundreds of possible combinations. USBCHK provides a definitive way to determine if a particular control combination works.

    Quickstart Instructions:

    1) Copy or download USBCHK.exe into a suitable folder in your hard disk.

    2) Plug your USB Controller. USBCHK can also check game port controllers. For USB cables, make sure the transmitter is powered up.

    3) Start USBCHK.exe.

    4) Move the control sticks around in a "stirring" motion. If less than 4 of the bars move, then either your controller needs Windows Calibration (see Windows Calibration below) or your controller is not suitable. At least 4 separate channels are required for proper RC Aircraft control.

    5) While looking at the bars, operate your Transmitter's other functions like Gear Retract, Gyro Control, etc. If these do not have any effect, or if the total number of moving bars are less than the number of channels of your transmitter, consider getting the 8-Channel USB Controller for PRE-Flight.

    6) Press the Calibrate Button. Do not press "Done" until you have moved both sticks in the full up, down, left, and right position SLOWLY. Repeat the moves again before pressing "Done". Calibration is usually necessary to display the full travel of the controls and also for clearer results for the following tests.

    7) Proceed to Testing the Controls for Suitability below. Do not continue further with the following tests without calibrating the sticks. Note: Exiting USBCHK will lose the calibration settings. Re-calibrate when using USBCHK again.

    Testing the Controls for Suitability:

    Important Notes:
    - Calibrate controls first (see above)
    - If your Controls pass the suitability tests, your controller can be used in the PRE-Flight Download Versions - click here. The following are screenshots and movies of PRE-Flight, click on the thumbnails for the full view:


    - The procedure will call for moving single controls. Take care not to disturb other controls - specially those on the same stick.
    - If you are not sure which control is which, see Topic below, Which Control is Which.
    - If you find your controller or USB cable is not suitable, consider getting the 8-Channel USB Controller for PRE-Flight.

    1) Move the rudder control only. Note which channel number is for rudder. If any other control channels move, your control is either not suitable or you have a computer transmitter and some form of mixing is turned on. Turn the mixing off. If this is not possible then your control is not suitable.

    2) Move the throttle control only. Depending on your control, one or two channels will move. If none move, your control is not suitable. If one channel moves, note which channel number is for throttle. If two channels move, one channel will be the throttle and the other will be the collective (for helicopters). Note both channel numbers. If more than 2 channels move, your control is either not suitable or you have CCPM mixing turned on your TX. Turn the CCPM mixing off. If this is not possible on your TX then your USB cable is not suitable.

    3) Move the elevator control only. If no channels move, your control is not suitable. Note which channel number is for elevator. If more than 1 channel moves, your control is either not suitable or you have CCPM mixing turned on your TX. Turn the CCPM mixing off. If this is not possible on your TX then your USB cable is not suitable.

    4) Move the aileron control only. If no channels move, your control is not suitable. Note which channel number is for aileron. If more than 1 channel moves, your control is either not suitable or you have CCPM mixing turned on your TX. Turn the CCPM mixing off. If this is not possible on your TX then your USB cable is not suitable.

    5) Check the channel numbers assigned to the throttle, rudder, elevator, and aileron controls. If the channel number(s) for any control also appear on another control, then your control cable or controller is not suitable.

    Other Tests:

    1) Move the Gyro control only. Note which channel number is for Gryo. If any other control channels move, your control is not suitable for Gyro control.

    2) Move the Gear control only. Note which channel number is for Gear. If any other control channels move, your control is not suitable for Gyro control.

    3) Check the channel numbers assigned to the throttle, rudder, elevator, and aileron controls. If the channel number(s) for any control also appear on the Gyro or Gear control, then your control cable or controller is not suitable.

    Windows Calibration

    Sometimes a controller needs Calibration in Windows to work properly with all channels. This needs to be done only once for a PC. The procedure is for Windows XP but can be a guide for Windows 7, and Vista users:

    1) Click Windows' Start button and select Settings, then Control Panel

    2) Open the Game Controllers folder.

    3) Your game controller should be in the Installed list of game controllers. If not, Exit the Game Controllers Dialog then unplug your controller, and re-plug after about 10 seconds. Check your transmitter for fresh batteries (if required). If your controller does not appear, it is not suitable.

    4) Select your controller then press the Properties button.

    5) Click on the Settings tab.

    6) Click the Calibrate button. This opens the Device Calibration Wizard.

    7) The procedure is different for different controllers. Follow the instructions for calibrating all the way to the finish.

    8) Click OK to exit the Properties Dialog then OK to Exit Game Controllers.

    9) This completes Windows Calibration.

    If Your USB Cable is not Recognizing all of your Transmitter Channels

    If USBCHK shows less channels than what your Transmitter is capable of using, then consider getting the 8-Channel USB Controller for PRE-Flight.

    Which Control is Which

    First we have to know what Mode your controller/transmitter has. The throttle control usually has a "non-centering" feature (no spring which returns the control to center position if released). If the throttle is on the right stick, you have Mode 1. If its on the left, you have Mode 2.

    For Mode 1:

    Throttle - right stick, up/down
    Rudder - left stick, left/right
    Elevator - left stick, up/down
    Aileron - right stick, left/right

    For Mode 2:

    Throttle - left stick, up/down
    Rudder - left stick, left/right
    Elevator - right stick, up/down
    Aileron - right stick, left/right

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