How Much Signal Loss Antenna In Attic

If the top of the antenna touches the walls or roof the performance may be affected slightly. You will need a peak in your attic that is tall enough for the antenna to fit. What is the typical signal propagation loss to be expected from a 2 meter 70cm j pole antenna mounted in an attic where the roofing material is the common 5 8 plywood and asphalt shingles compared to the same antenna mounted outside at the same height.

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The kb9vbr 2 meter j pole antenna is 69 inches tall overall.

How much signal loss antenna in attic.

Eliminating the sources of signal loss. In general you can lose up to 40 50 of your signal s strength from an attic installation due to the loss from roofing materials but with proper installation and the right antenna you can overcome some of this loss and be successful. Implementing signal enhancing measures. You can refer to his request in the antenna forum here luckily his attic and the shake shingle covered roof are entirely made of wood with no metal objects to contend with anywhere.

Removing a potential source of parasitic interference. Best tv antenna indoor hdtv antenna reviews. Attic antennas may work in some situations but there may be as much as a 2 3 loss of signal by installing the antenna in an attic as opposed to a rooftop or outdoor wall mount installation. Your rights regarding antenna installations on your property are explained in more detail on the fcc s web site.

When it comes to signal loss over longer cable lengths the basic rule of thumb is that a 50 foot cable can experience noticeable signal loss. Random signal reflections and absorptions may also drastically degrade the performance of an attic antenna. The only concern with attic mounted antennas is the space available to you for mounting.