A super heterodyne receiver is designed to receive transmitted signals between 5 and 10 MHz. The tuning range of the local oscillate for IF frequency 600 kHz for high-side tuning would be

Options

A. 4.6 to 9.6 MHz
B. 5.6 to 10.6 MHZ
C. 4.6 to 10.6 MHz
D. 5.6 to 9.6 MHz

Explanation

To solve the problem of determining the tuning range of the local oscillator in a super heterodyne receiver designed to receive signals between 5 MHz and 10 MHz with an intermediate frequency (IF) of 600 kHz, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Given Frequencies**:
- The lower frequency of the received signal (f_low) = 5 MHz
- The upper frequency of the received signal (f_high) = 10 MHz
- The intermediate frequency (IF) = 600 kHz = 0.6 MHz

2. **Determine the Local Oscillator Frequencies**:
- For high-side tuning, the local oscillator frequency (f_LO) is calculated by adding the intermediate frequency to the received signal frequency.
- Therefore, we can express the local oscillator frequencies as:
- Lower local oscillator frequency (f_LOL) = f_low + IF
- Upper local oscillator frequency (f_LOU) = f_high + IF

3. **Calculate the Lower Local Oscillator Frequency**:
- f_LOL = 5 MHz + 0.6 MHz
- f_LOL = 5.6 MHz

4. **Calculate the Upper Local Oscillator Frequency**:
- f_LOU = 10 MHz + 0.6 MHz
- f_LOU = 10.6 MHz

5. **Determine the Tuning Range of the Local Oscillator**:
- The tuning range of the local oscillator is therefore from f_LOL to f_LOU.
- Thus, the tuning range is from 5.6 MHz to 10.6 MHz.

### Final Answer:
The tuning range of the local oscillator for high-side tuning is **5.6 MHz to 10.6 MHz**.