96年还是在大学时，使用过计算机发送CW。现在看见有可以解码的CW软件，有没有HAM使用计算机软件来解码和编码发送CW呢？
找到一款CW Decoder软件，不知道解码效果如何：
Introduction
Welcome to the CW DecoderXP program. This software was designed to allow CW operators to see, hear, and display as text CW signals from their receivers and to transmit CW using the serial port of the computer. This is accomplished by routing the audio from the receiver output to the audio (MIC In) input of the sound port of the computer.
Interface to the computer
Connecting the computer to the Receiver:
Connect the audio output of the radio (either the speaker or phones) to the microphone input on the computer. Some receivers have a separate line output on the back that can be used. Commercial interfaces are also available to connect your radio to the comptuer.
If you use the speaker output you then have the problem that the computer can receive the audio but you cannot hear the output. To solve this problem select from the file menu (of the CW Decoder program) the volume control option. If the volume control does not display the microphone slider section, select Option, then Properties. In the box that show the volume controls make sure that the microphone has been checked. Close the properties window. On the Master Volume window the microphone slider should now be visible. Un-mute the microphone and adjust the slider to maximum (later you may want to turn it back down). Close the Master Volume window. You should now be able to hear the audio from the radio through the computer speakers. Adjust the volume to a comfortable level.
Connecting the computer to the Transmitter:
If you are using Windows95, Windows98, and WindowsME, the printer port may be used to control the keying of a transmitter. Bit 0 (pin 2) or bit 1 (pin 3) can be used for control where a HIGH (voltage high) turns the transmitter on and a LOW (voltage low) unkeys the transmitter. The default printer address is 3BC hex, use the option function on the menu bar to change the address that corresponds to LP1 on the computer. Input the new LPT address in Hex format. It is recommended that optical isolation is used when interfacing to the transmitter to prevent RF feedback from entering the computer.
One of the serial communications ports COM1 through COM6 (serial ports 1 through 6 on the setup menu) may also be used to key the transmitter. These are the only modes available for WindowsXP, Windows2000, and WindowNT. Either the DTR (pin-4) or the RTS (pin-7) control line may be used, both are keyed at the same time. Pin 5 is ground (GND). Be sure to include a reverse diode on the input to the transistor (if used to enable a relay) to prevent reverse voltage breakdown of the device.
Commercial Products:
There are several commercial products that can be purchased to interface your radio to your computer. They provide an interface (including cables) for both the receive audio and the keying of the transmitter within the unit. Two popular products are the MFJ-1275 and the RIGblaster series. If you only have USB ports on your computer you will also need to buy a USB to Serial Port adapter ($35-$40) between the computer and the commercial product.
Other References:
There are also many articles in QST and QEX on interfacing your computer to your radio. Please use them as a resource.
