They work good...not as good as a single band antenna,but any dual band
antenna is a compromise. Well constructed with the exception of that
mounting clamp,replace it before you mount it anywhere. 73,Lee
Jim Cicirello wrote:
> Hello to Kevin and the group:
> I am putting together my 1480 VHF/UHF Dual Band 6/8 dB Collinear
> Base Station Antenna. While checking the pigtail I made up for the
> antenna, I discovered that I didn't have any measurable continuity
> between the center conductor inside the radome to the center of the
> S0239, however I have 0 ohms between the center element in the
> radome to the outside of the S0239, i.e. ground. There is a matching
> coil in the area of the radials. I am presuming that the center of
> the S0239 is probably connected to the center element through a
> capacitive coupling. For clarity, I brought out the second antenna
> and checked it without the pigtail and get the same readings. I am
> sure the antenna is OK, but would like to understand how the center
> of the antenna is coupled to the center of the S0239. The larger
> 9/11 dB version I bought at Dayton does not have any measurable
> continuity between the center and ground, so I presume it is the
> same design, just larger in size for gain. This is a great antenna!
> Any information on how these Repeater Builder 1480 Antenna work,
> would solve my curiosity.
>
> 73 JIM KA2AJH Wellsville, N.Y.
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> Yahoo! Groups Links
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