New answers tagged

0

Height is king in urban environments; the higher the better. A 5/8 wavelength antenna will reduce the vertical beam-width, not what you want. The optimal antenna for your application is a vertical dipole(folded or not) with a flat reflector, located well above and slightly behind the screen as high as possible with a very slight forward tilt(assuming ...


3

First, some technical information. According to W8JI, who knows more about antennas than I likely ever will, a 5/8λ vertical antenna potentially offers a few decibels of horizontal gain over a 1/4λ vertical, if you have a large-enough ground plane; specifically, a ground plane with a radius of about 1.5 m or larger. That's a ground plane 10' across, in ...


2

A quick note: If the transmit system described in the OP will be or is unlicensed by the regulating body having jurisdiction for such (e.g. the FCC in the USA), then some risk will be involved in its use. In the US, such unlicensed systems in the FM broadcast band are authorized under title 47CFR §15.239, but limit the maximum field intensity 3 meters in ...


Top 50 recent answers are included