Using TV pull antennas as FM dipole antennas ----- fm antenna

Keywords: quarter wavegoon GP antenna In the business radio, the quarter-wave antenna should be the simplest and no difference in an antenna, so it has considerable proportion in the radio community. For example: If you have a payment, most of the antennas on the police car are quarter-wave antennas, like you are using 430MHz mobile phones, and most of its antennas are also a quarter wave. And you pay attention, most of the big brother's mobile phone is also a quarter of the antenna. It can be seen that the quarter wavelength antenna is definitely there is its effect. If you are not a concept of electronic, you may ask what is a quarter wavelength? Simply, it is an antenna length Unit, is calculated in frequency, it has a formula: the length of the antenna (wavelength) = 300 divided by a quarter by a quarter of a quarter (wavelength shortening) is the length of the antenna (unit meter) For example, if you want to do a frequency 144.00MHz antenna, first calculate the length of the antenna, calculate the above formula: (300 / 144.00MHz) * 0.25 * 0.96 = 0.5 (meter) We get 0.5 meters, the length of 50 cm, then prepare materials, we prepare 5 50 cm copper strips and a m-shaped joint (as shown in Figure 1) and then use the soldering iron to use the M-shaped spindle with one Only copper strips are welded, and then other four screws are locked in the four or weld, and then four times 45 degrees (as shown in Figure 2).

Our other product:

Professional lightning protection system for Tower	Professional FM Radio Station Equipment Package	FMUSER FU-1000C 1000W FM Transmitter With USB Audio Input Interface
FMUSER 200W FM Radio Broadcasting Package	Hotel IPTV Solution	FMUSER FSN-1000T V5.0 1KW FM Radio Broadcast Transmitter