Howtosignalprocessing
While you can use AM antennas for amplitude modulated (AM) mediumwave reception/transmission, the FM antenna works for frequency modulated (FM) wave transmission/reception. So, no, an AM loop antennas will not work for FM.
- Which type of antenna is used in FM?
- Is there a difference between AM and FM antennas?
- How do I connect my AM loop antenna to my radio?
- Can I use a UHF antenna for AM FM radio?
Which type of antenna is used in FM?
There are two types of antennas: Wideband and Tuned. Wideband FM antennas maintain their matching characteristic in all 20MHz of the FM band. Tuned antennas are adapted only in a small band around the frequency to which they were tuned.
Is there a difference between AM and FM antennas?
In AM, a single wavelength is 984 feet for a 1MHz signal. In FM, one wavelength is about 12 feet. Thus, the popular quarter-wave antenna often used for AM might be 246 feet high, and the FM antenna elements would be only around three or six feet long, depending on the antenna design.
How do I connect my AM loop antenna to my radio?
Using AM Radio Loop Antennas
Tune your AM radio to a station with weak reception. Place the loop antenna on or next to the radio and slowly adjust the dial on the capacitor up and down. Loop antennas are directional. After the reception improves, try rotating the antenna from left to right.
Can I use a UHF antenna for AM FM radio?
Yes it will work. The radio frequencies didn't change, it's how the information is encoded. In the USA the lower VHF channels were reassigned for other uses so stations using those channels had to switch to UHF. So in the USA you'll need an antenna with very good UHF reception.
