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 * [:TransceiverConnection:Connecting a Transceiver to a PC]
    * [:PreventUSBPortPowerDown: Configuring Windows to not automatically power down USB ports]
   
* [:ChangeAdaptorCOMPort: Changing the COM port number that Windows assigns to a USB-to-serial-port adapter]
    * [:UpdateUSBSerialAdaptorDeviceDrivers: Updating Device Drivers for USB-to-Serial-Port Adapters]
 * [:PreventUSBPortPowerDown: Configuring Windows to not automatically power down USB ports]
 * [:ChangeAdaptorCOMPort: Changing the COM port number that Windows assigns to a USB-to-serial-port adapter]
 * [:UpdateUSBSerialAdaptorDeviceDrivers: Updating Device Drivers for USB-to-Serial-Port Adapters]

Controlling an External Modem

WinWarbler can decode and generate CW, RTTY, and other digital modes via an External Modem connected to a serial port. WinWarbler interacts with a connected External Modem by sending it individual commands, e.g. Initialize or begin transmitting or switch to RTTY. The individual commands required for a particular model of External Modem are obtained from an External Modem Command File. WinWarbler includes External Modem Command Files for the KAM 98, MFJ 464, PK232, PK900, and PTC-IIe; you can [http://www.dxlabsuite.com/winwarbler/Help/RTTYModemCommandFiles.htm create an External Modem Control File] for other devices.

Required Connections

To control an External Modem, you will need

  • an RS-232 cable connecting a serial port on your PC with the External Modem's serial port
  • an audio cable connecting your transceiver's audio output to your External Modem's audio input
  • an audio cable connecting your External Modem's audio output to your transceiver's audio input
  • a wire connecting your External Modem's PTT output to your transceiver's PTT input; PTT is an abbreviation for [:PTT:Push To Talk]

  • to transmit RTTY in [:AFSKFSK:FSK], a wire connecting your External Modem's RTTY output to your transceiver's RTTY input

  • to transmit CW, a wire connecting your External modem's CW output with your transceiver's CW input

Each of the above connections should be described in detail in your External Modem's user guide.

Configuring WinWarbler

On the Configuration window's External Modem tab

  • set the Model selector to model of External Modem you are using; this selector determines which External Modem Command File will be used to interact with your External Modem.

  • in the Serial port panel

    • set the port sub-panel to the serial port on your PC to which the External Modem is connected (if your External Modem is connected to COM5, for example, then set the port sub-panel to 5)

    • set the baud rate sub-panel to match the baud rate to which your External Modem is configured, as described in its User Guide; note that some External Modems do not work reliably at baud rates above 2400.

    • set the word length sub-panel to 8

    • set the stop bits sub-panel to 1

    • set the parity sub-panel to none

  • in the RTTY panel
    • set the speed selector to 45

    • set the shift selector to 170

    • in the reverse sub-panel, uncheck both the transmit and receive boxes

    • if you will be transmitting in [:AFSKFSK:AFSK], then in the modulation and tranceiver mode sub-panel's AFSK section

      • click the LSB button

      • set the Xcvr Mode selector to LSB

      • set the Mark Offset to 0

      • set the Optimal Offset to 2210

    • if you will be transmitting in [:AFSKFSK:FSK], then in the modulation and tranceiver mode sub-panel panel

      • click the LSB button

      • set the Xcvr Mode selector to RTTY

      • set the Mark Offset to -2125

      • set the Optimal Offset to 2210

    • Check the enabled box in the upper-left corner

      [http://www.dxlabsuite.com/Wiki/Graphics/WinWarbler/ConfigModem.jpg]

On the Configuration panel's CW tab,

  • Set the Xcvr mode selector to CW

  • Set the CW offset (hz) to 0 (blank is ok)

  • In the Keying panel, click the external modem button

Operating in RTTY

To operate in RTTY, click the RTTY button in the Main window's Operating Mode panel. As you tune your transceiver to a RTTY signal, decoded characters should appear in the Main window's Receive pane.

To transmit RTTY,

  • click the Start button in the RTTY receive & transmit panel

  • type the characters to be sent in the Main windows Transmit Pane

  • click the Stop button in the RTTY receive & transmit panel

Your transceiver should switch from reception to transmission, transmitted characters should appear in the Main window's Receive pane, and your transceiver should switch from transmission to reception after all characters have been sent. You can also transmit by [:macros:constructing and invoking macros].

[http://www.dxlabsuite.com/winwarbler/Help/RTTYOperation.jpg]

Note that [:ConfigureRTTY: Soundcard RTTY] can be enabled and used as a tuning indicator for reception with your External Modem. As shown in the above screen shot, decoded characters received via Soundcard RTTY will appear in Receive pane 0 (marked with an S in its left border) on the Main window, whereas decoded characters received via your External Modem will appear in receive pane 1 (marked with an X in its left border).

Operating in CW

To operate in CW, click the CW button in the Main window's Operating Mode panel. As you tune your transceiver to a CW signal, decoded characters should appear in the Main window's Receive pane.

To transmit CW,

  • set the WPM box to the desired speed in words per minute

  • click the Start button in the CW transmit panel

  • type the characters to be sent in the Main windows Transmit pane

  • click the Stop button in the CW transmit panel

Your transceiver should switch from reception to transmission, transmitted characters should appear in the Main window's Receive pane, and your transceiver should switch from transmission to reception after all characters have been sent. You can also transmit by [:Macros:constructing and invoking macros].

Additional Topics

  • [:PreventUSBPortPowerDown: Configuring Windows to not automatically power down USB ports]
  • [:ChangeAdaptorCOMPort: Changing the COM port number that Windows assigns to a USB-to-serial-port adapter]
  • [:UpdateUSBSerialAdaptorDeviceDrivers: Updating Device Drivers for USB-to-Serial-Port Adapters]


[:Multimode_Setup:Setting up CW, Phone, PSK, and RTTY Operation]

[:Operation:Getting Started with CW, Phone, PSK, and RTTY Operation]

[:GettingStarted:Getting Started with DXLab]

ExternalModemControl (last edited 2020-01-27 07:19:33 by AA6YQ)