Technician A says a rear window defogger/antenna module separates the RF signal used by the radio from the electrical current used by the grid. Technician B says usually the top grid lines of the heater grid are unheated and used to receive the AM signals. Who is correct?
A) Technician A only
B) Technician B only
C) Both Technician A and B
D) Neither Technician A nor B

Question

Quizplus · Accepted Answer

Both Technician A and B are correct. Technician A is correct because the module does indeed separate the RF (radio frequency) signal from the electrical current for the defogger grid, allowing the grid to also function as an antenna. Technician B is correct in stating that the top grid lines are often unheated and used specifically for AM signal reception, allowing for dual functionality of the rear window grid.

Technician a Says a Rear Window Defogger/antenna Module Separates the RF