Gray Hoverman VHF Fix

Описание к видео Gray Hoverman VHF Fix

In this video and I show you how to make the Gray Hoverman Narods Top Hat.This is a fix on how to improve the VHF signal with out affecting the UHF TV antenna signal,The antenna presented here are of Gray-Hoverman type. They are designed to have very high UHF gain combined with good to excellent VHF-hi performance In the VHF-hi band the performance depends on the number of NAROD reflectors and ranges from 1-2 dB less on some models to 1-2 dB more on others. The model without reflectors have the least VHF-hi gain, but they only have a single reflector plane and should be much easier to build. All models cover the whole US and Canada post-transition TV spectrum, one should choose the model to build based on the specific gain, and pattern requirements. The models with more reflectors have more gain but narrower beam width. The Gray-Hoverman antenna has been designed by Doyt R. Hoverman and it was patented in the sixties. His design only covered a part of UHF band. However, with some improvements, the antenna can receive well both the UHF as well as VHF-Hi. This post will show two variants of this antenna that can be used to receive 170 to 230 MHz channels (5 - 12) and a part of UHF between 470 - 720 MHz (21 - 52 channels) with a minimum gain of 5 - 6 dBi. These are the simplest to build. There are however designs that offer a minimum gain of 8 dBi on VHF and 10 dBi on UHF (check the Links section). These antennas can be used for any kind of signal that can be received on the mentioned frequencies: analog TV, DVB-T, DVB-T2, ISDB-T, ATSC. The design is distributed according to the GNU GPL version 3 license.

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