Answer:
Yes, you can use a single and dual frequency receiver to measure a vector.
A single frequency receiver can measure the direction of a vector, while a dual frequency receiver can measure both the direction and distance of a vector.
To measure the direction of a vector using a single frequency receiver, you would need to use a technique called carrier phase measurement. This involves comparing the phase of the received signal from a satellite with the phase of a locally generated signal. By analyzing the phase difference, you can determine the direction of the vector. However, this method does not provide information about the distance of the vector.
On the other hand, a dual frequency receiver can measure both the direction and distance of a vector. It uses two different frequencies from the satellite signals to calculate the distance between the receiver and the satellite. By combining the distance information with the direction information obtained from the carrier phase measurement, you can determine the vector's magnitude and direction.
To summarize, a single frequency receiver can measure the direction of a vector using carrier phase measurement, while a dual frequency receiver can measure both the direction and distance of a vector by combining carrier phase measurement with distance calculation.