Using ComTekk SELCAL
1. Running ComTekk 2-Tone Decoder
First-time users must enter their user registration information to enable the software. This will be sent via email after purchase is made.
Once ComTekk SELCAL has been successfully installed, you may simply double-click the CTSelcal desktop icon or Click the Windows Start menu, then Programs, choose the ComTekk folder, then CTSelcal.
To control CTSelcal:
- To run the program, click the desktop icon or go to Start->Programs->ComTekk->CTSelcal .
- The top dot-matrix display shows the SELCAL Code to be transmitted. A green "Ready" indicates a valid code is ready for transmission.
- To Transmit the tone sequence, simply click the "SEND" button. You can simply hold the radio's microphone up to a computer speaker, or the sound card's output may be wired to the radio. Contact ComTekk for a sound card to radio interface unit.
- Be sure to run the Calibration on first use to ensure accurate tones are produced.
- To exit the program, click "Exit" under the "File" menu, or just click the "X" button in the upper-right corner of the window.
Please note that if you have more than one audio device installed, CTSelcal will only use the system's default sound device.
Continue on to Section 2 below for detailed description of the buttons and screens.
2. The CTSelcal GUI (Controls and Indicators)
Controls:
1. A..S letter keys - use these buttons to input the code sequence to be sent.
2. SEND - Begin transmission of the code sequence displayed.
3. CLEAR - Clears the code display. If pressed while transmitting, will immediately terminate the transmission.
Menus:
1. File->Exit - Close/exit the program. All settings will be saved for next use.
5. View->Settings - Opens the Settings [preferences] and calibration window.
5. View->Mixer - Runs the Windows Mixer control panel for sound device input/output settings.
5. Help->Contents - Opens the User Manual [this file].
5. Help->Website - Opens a browser window and takes you to the ComTekk Software home page, where you can check on the latest releases, upgrades and hardware.
5. Help->Register - Takes you to the software registration window, where your personal activation key is entered.
5. Help->About - Displays the "About" screen, showing version and user registration info.
Indicators:
1. Dot-matrix Display - shows the SELCAL code to be transmitted. Use the letter keys below the display to enter the 4-letter code.
2. Ready LED - This LED when lit indicates a valid 4-digit code has been entered and is ready for transmission. The SEND button is now enabled.
3. Transmit LED - Indicates the SELCAL tones are being generated by the sound card. If speakers are connected, the tones should be audible.
3. Windows Mixer Control Panel
Windows Volume Control (Playback):
This screen controls the sound card OUTPUTS and will generally have no effect on the decoder, since it uses the sound card INPUTS, which are controlled by the Recording Control (see next section below).
The Windows Recording Control [below] affects sound device INPUTS, such as LINE , AUX, Wave, or Microphone. To access Recording controls, open Windows Volume Control from ComTekk, or with a double-click on the speaker icon in your system tray. Select "Options" from the menu, then "Properties." Click the "Recording" radio button. Be sure the appropriate input item is checked. Settings will be saved on closing this window.
It is very important to have the correct input device enabled, otherwise the decoder may not function.
