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[QUOTE=&quot;RF Steve, post: 142466, member: 18630&quot;]Well you got me thinking, and searching. As a general rule in order for it to work as a reflector it needs to be wider than one half wave length for the lowest frequency of use. Without doing computer modeling it can be difficult to predict what effect adding a few wires is going to have. An interesting effect of reflectors being less then one half wave length can be seen in some UHF antennas when used to receive VHF signals the gain of the antenna on VHF frequencies is off the back side. The U-4000 is an example of this.&nbsp; <a href="http://imageevent.com/holl_ands/multibay/4bayrefl/antennacraftu40009reflectorrods">Antennacraft U-4000 - 9 Reflector Rods</a>I did take a look at this page, but I've not studied it much.<a href="http://imageevent.com/holl_ands/multibay/4bayrefl/m49590variousnumberrrs">M4 (9.5x9) + Various Number of RRs - OPT</a>In most cases you well never see a significant change from a one dB increase in antenna gain.Steve[/QUOTE]

[QUOTE="RF Steve, post: 142466, member: 18630"]Well you got me thinking, and searching. As a general rule in order for it to work as a reflector it needs to be wider than one half wave length for the lowest frequency of use. Without doing computer modeling it can be difficult to predict what effect adding a few wires is going to have. An interesting effect of reflectors being less then one half wave length can be seen in some UHF antennas when used to receive VHF signals the gain of the antenna on VHF frequencies is off the back side. The U-4000 is an example of this. [url=http://imageevent.com/holl_ands/multibay/4bayrefl/antennacraftu40009reflectorrods]Antennacraft U-4000 - 9 Reflector Rods[/url] I did take a look at this page, but I've not studied it much. [url=http://imageevent.com/holl_ands/multibay/4bayrefl/m49590variousnumberrrs]M4 (9.5x9) + Various Number of RRs - OPT[/url] In most cases you well never see a significant change from a one dB increase in antenna gain. Steve[/QUOTE]

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