B-003-001-001

A low pass filter in an HF station is most effective when connected:
A) as close as possible to the antenna

B) as close as possible to the antenna tuner output

C) as close as possible to the transceiver output

D) midway between the transceiver and antenna

The answer is C.
In a High Frequency (HF) station or via HF equipment you want the low pass filter as close as possible to the transceiver output.

What is a transceiver?

What is a low pass filter?