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Configuring the RemHam Server

Configuring the RemHam Client


Radio Engineering Associates

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Configuring the RemHam Client

This page is under construction - more coming soon !

How you configure your RemHam client will, to some degree, depend on how you are using it.

If you plan on using the mouse or a touch screen to click the "Transmit" button, you will not need to configure any sort of hardware interface for T/R. You will simply use the mouse or touch screen as the interface.

Settings:

Access most of RemHam's settings using the "Settings" menu. The following settings are available, with descriptions of what the setting does:

  • Auto Reconnect After Network Error This will cause RemHam, once connect to a remote RemHam Server, to automatically reconnect to the server in the event of a disconnect or network error.
  • Use 10 Bit Audio (Reduces network bandwidth) This setting changes the RemHam audio bit density from 16 bits to 10 bits. Saves quite a bit of network bandwidth, and for most practical purposes, there is no loss of fidelity.
  • Always On Top Keeps RemHam in front of all other application windows
  • Server Sends Monitor Audio to Client when Server is Transmitting (Full Duplex Audio) When enabled, audio fed to the Server's input device will be sent to the RemHam Client, and sent to the Client's audio output device. Metering of the audio is also displayed.
  • Server Sends Monitor Status (Monitoring/Metering only) to Client When Transmitting (Much Less Bandwidth) When enabled, the server sends audio status (meter indications only) to the RemHam Client.
  • Transmit Button Emulates Push-To-Talk When selected, you must hold the mouse button down when transmitting. Otherwise, the Transmit button is a toggle (click to transmit, click to receive)
  • Enable Server Monitor Alerts This setting enables alerts in the event the remote transmitter shuts down or is otherwise not working. Note: The server end must be configured such that audio from a monitor is fed to the server's input device when the transmitter is operating.
  • Set Server Monitor Threshold Level Sets the audio threshold for the above setting, below which (after a few seconds) the client will alert the user.
  • Set Network Buffer Level... Sets the number of network buffers. Normally 10 is used.
  • Choose Audio Devices... Used to select the audio input and output devices
  • Choose Com Port... Selects the com port if external control from a switch or PTT mic is used.

Using an External PTT Switch

If Transmit/Receive control using a switch or PTT is desired, the circuit shown below is one way to do it.

If you use the mouse for transmit/receive, you will not need to build any external circuitry.

Here is the Client side RS232 to PTT interface circuit I use with RemHam from the car.