A Circularly Polarized Fm Antenna For The Attic

With a horizontal antenna essentially my rear window antenna in the malibu you have up to 20 db loss over a vertical antenna.

A circularly polarized fm antenna for the attic. The modification is to the feed that increases the antenna s gain by 3db when receiving circular polarized signals. Its frequency range is adjustable by scales from 88 108mhz. Cp100 circular polarized fm antenna is a new anenna designed for fm radio stations using with fm transmitters up to 300 500watt. The development focused a top mounted circularly polarized antenna.

It has comparable loadings to the familiar horizontally polarized super turnstile. So to reach these mobile listeners you need circular polarization. Circular dichroism cd is the differential absorption of left and right handed circularly polarized light circular dichroism is the basis of a form of spectroscopy that can be used to determine the optical isomerism and secondary structure of molecules. Wzbc dj ethan funk is responsible for the modification to the design.

The ge 20431 futura outdoor indoor attic tv antenna is one of the best looking options on the market. Best of all install the antenna in your attic and run a longer length of feeder cable to your radio. Less loss with the randomly polarized shark fins but the antennas are too small to be very efficient usually there is an rf preamp to compensate. It is the erp and location the antenna is mounted in that determines an fm stations range not the particular type of polarization used.

In general this phenomenon will be exhibited in absorption bands of any optically active molecule. Capable for single frequency or. In addition the antenna supports a power rating to 100 kw erp per plane. The double crossed dipole antenna with circular radiation offers the possibility of simultaneously utilizing vertical and horizontal polarization for better coverage especially in urban areas.

The dcr u features a pressurized tap point and 4 balun which makes it specially designed to handle the high powers and voltages associated with combined multi station operation. It s a long way from the rabbit ear designs you might think of when picturing indoor antennas and much cooler looking than the metal contraptions often found outdoors. Dcr u circularly polarized fm antenna. The rototiller is available in low medium and super high power versions.

Increasing your erp four times over one cp antenna picks up many more listeners with its expanded coverage area when compared to just filling in the horizontal coverage within an existing range or erp level.