F023 TAv 23 - Radar EO23.03 Radar Tx/Rx

There are several different ways to transmit microwave energy. State one method of Pulsed Doppler.

Which of these are types of Radar transmitters

• High Power Oscillator

• Master Oscillator Power Amplifier

• Superheterodyne

• Pulse Forming Network

Identify the main factors governing the choice of PRF from the choices below.

• Aerial Scanning Speed

• Transmission mean power

• Transmission peak power

• Signal to Noise Ratio

• Voltage Standing Wave Ratio

True or False

The HPO Tx is normally used for CW (Doppler) radar type transmissions.

• False

• True

What stage provides pulse modulation of the low power CW microwave frequency and prevents loading of the previous stage?

• Driver Amp

• Master Oscillator

• Master Timing Unit

• Pulse Modulator

• RF Power Amp

What is the function of the RF Osc?

• Determines the value of the RF Frequency generated

• Determines the Pulse Width

• Determines the triggering

• Determines the PRF

True or False:

Noise is due to random variations in the signal that originate either externally or more likely internally within the receiver itself from its electronic components.

• True

• False

True or False:

Clutter is unwanted reflections or echoes coming from airborne targets.

• False

• True

Select all the valid techniques for removing clutter.

• Fast Time Constant

• Logarithmic IF Amp

• Swept gain Time Control

• Balanced Mixer

• Logarithmic AF Amp

What would the signal trace look like at point A?

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