2 Way Stacked Dipole High Gain FM Broadcasting Antenna

The double stacked dipole has the benefit of 4.8dBi of gain and broadband operation. This is achieved by slightly phase staggering the signal to each dipole. Providing the antenna is mounted correctly the SWR is less than 1.5 across the whole band from 87.5 to 108 MHz. This antenna system never needs tuning, just put your transmitter on any frequency from 87.5 to 108 MHz and switch on. If you require more than 4.8dBi of gain the 4 way 7.8dBi and the 8 way 10.8dBi stacked dipoles based on this model are also available

The RF field strength directly below this antenna is lower than that of a single dipole. The built in balun provides a truly unbalanced input and prevents any RF currents traveling down the outer of the feeder cable. This combined with the low field strength below the antenna reduces the chances of audio and TV interference considerably and maximises RF power to the horizon.

The main feed point of the dipole contains a matching coil to reduce the antennas natural impedance of 72 ohms to 50 ohms. To protect this and the LMR400 coaxial feed from water and other weather related elements, the whole feed point is filled with resin.

There are not many complete 2 way stacked dipoles on the market and certainly not at the price we sell this one for. Without a shadow of a doubt, this is the best value for money and performance high gain and full broadband FM 2 way stacked dipole you will find on the market.