*Question G4A10:
What is the function of an electronic keyer?*  

*Correct Answer is  B: Automatic generation of dots and dashes for CW operation*  

### AI Response: (may contain errors)  

An electronic keyer is a device used in amateur radio to assist with Morse code (CW) operation. Here's why the correct answer is B:

1. **Correct Answer: B - Automatic generation of dots and dashes for CW operation**
   - An electronic keyer simplifies the process of sending Morse code by automatically generating the correct timing for dots (short signals) and dashes (long signals). This helps operators send consistent and accurate Morse code without manually timing each element.

2. **Why the Other Choices are Incorrect:**
   - **A: Automatic transmit/receive switching**
     - This function is typically handled by a transceiver's built-in circuitry or an external T/R switch, not an electronic keyer.
   - **C: To allow time for switching the antenna from the receiver to the transmitter**
     - This is related to the function of a T/R switch or relay, not an electronic keyer.
   - **D: Computer interface for PSK and RTTY operation**
     - PSK (Phase Shift Keying) and RTTY (Radio Teletype) are digital modes that require different interfaces and software, not an electronic keyer, which is specific to CW operation.

In summary, an electronic keyer is specifically designed to aid in the generation of Morse code by automating the timing of dots and dashes, making it easier for operators to send CW efficiently.