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[QUOTE=&quot;EscapeVelocity, post: 45709, member: 3771&quot;]I think its pretty well established that the 4228A and the 4228HD have some useful gain on VHF High, whether its 9 dB or 6 dB or varies between 3 and 8 dB depending on the channel.The reflector is pretty basic.&nbsp; Its a little long for a 1/2 wave at VHF High, but still in good area.&nbsp; The newer 4228HD has nicer larger diameter vertical rods which perhaps broadband a bit better than the fencing of the 4228A.&nbsp; However who knows exactly how that fencing acts, it could be broadbanding even better acting as a fat dipole.&nbsp; That is a question worth contemplating, especially after we get an A/B spectrum analysis of it.Yeah, I was getting the sense that Piggie was saying that the screen or horizontal rods on the reflector are coupling with the feedlines or 75 ohm tranmission line directly (through space).&nbsp; Dunno about that one.&nbsp; It's not out of the realm of possibility...but?[/QUOTE]

[QUOTE="EscapeVelocity, post: 45709, member: 3771"]I think its pretty well established that the 4228A and the 4228HD have some useful gain on VHF High, whether its 9 dB or 6 dB or varies between 3 and 8 dB depending on the channel. The reflector is pretty basic. Its a little long for a 1/2 wave at VHF High, but still in good area. The newer 4228HD has nicer larger diameter vertical rods which perhaps broadband a bit better than the fencing of the 4228A. However who knows exactly how that fencing acts, it could be broadbanding even better acting as a fat dipole. That is a question worth contemplating, especially after we get an A/B spectrum analysis of it. Yeah, I was getting the sense that Piggie was saying that the screen or horizontal rods on the reflector are coupling with the feedlines or 75 ohm tranmission line directly (through space). Dunno about that one. It's not out of the realm of possibility...but?[/QUOTE]

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