We ran that exact configuration on commercial services using the DB
supplied harness at 420' on a Rohn 80g. Worked fantastic! Handheld
coverage out to 30 miles! This was multicoupled with 8 ports and a
preamp feeding 4 RCC channels and 3 vhf repeaters and one marine coastal
station. We did the same thing with UHF using a pair of DB420's at 460'
with the same great results! Transmit antennas were peppered around the
tower below,some combined and some separate. Maybe you could find out
what the harness should be and combine yours.
kc4fwc wrote:
>I happen to have two DB-224's that are identical, same phasing harness,
>connector, etc. What if one was to put elements all in one line, and
>at the exact same height, mount one antenna on the north side of the
>tower (mounted directly to tower leg with elements pointed straight
>ahead) and mount the other directly on south side of the tower in the
>same manner, and feed with power divider or a tee connector with odd
>1/4 length of 35 ohm for matching purposes? If the antennas are fed
>exactly in phase, that is. I understand about receiving signals 180
>degrees out of phase in the coverage area, but wouldn't this
>configuration be similar to a pair of elements on a DB-420? Would this
>configuration serve as more omni-directional?
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>73, KC4FWC
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