Cellular Mobile radio works on the frequency range is

Options

A. 840 to 935 MHz
B. 3.7 to 4.2 GHz
C. 420 to 890 MHz
D. 30 to 300 GHz

Answer

To determine the frequency range on which cellular mobile radio operates, we can follow these steps:

### Step 1: Understand the Concept of Cellular Mobile Radio
Cellular mobile radio refers to the technology used for mobile communication, which allows users to make calls and send messages through a network of radio towers.

### Step 2: Identify the Frequency Bands Used
Cellular mobile radio operates within specific frequency bands. These bands are part of the radio frequency spectrum, which is divided into various ranges for different types of communication.

### Step 3: Focus on the Ultra High Frequency (UHF) Band
Cellular frequencies are typically found within the Ultra High Frequency (UHF) band. This band is crucial for mobile communication as it allows for effective transmission and reception of signals.

### Step 4: Determine the Specific Frequency Range
The commonly used frequency range for cellular mobile radio is between 840 to 935 megahertz (MHz). This range is designated for cellular phone use and is utilized by most cellular networks worldwide.

### Step 5: Select the Correct Option
Based on the information gathered, the correct answer to the question regarding the frequency range for cellular mobile radio is 840 to 935 MHz.

### Final Answer
Cellular mobile radio works on the frequency range of **840 to 935 megahertz (MHz)**.

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