INSTRUCTION BOOKLET
J-283X
RUGGEDIZED VHF-UHF-FM
J-SERIES ANTENNA
BY
Please
Note:
A qualified structural engineer should be
consulted prior to mounting an antenna
on a tower or support structure.
www.wadeantenna.com
30332-001 Rev. J
Page 1: ...OKLET J 283X RUGGEDIZED VHF UHF FM J SERIES ANTENNA BY Please Note A qualified structural engineer should be consulted prior to mounting an antenna on a tower or support structure www wadeantenna com 30332 001 Rev J ...
Page 2: ...f the log periodic design principle and exhibits medium gain across the frequency band 2 THEORY OF OPERATION The antenna is comprised of 8 VHF and 7 UHF elements connected to a parallel pair of 1 aluminum crossarms that form the antenna transmission line To accomplish end fire log periodic operation the elements are tapered from the front of the antenna to the back and successive dipole halves are...
Page 3: ...WIDTH degrees VHF Lo 70 Hi 45 UHF 55 ELEMENTS 8 VHF 7 UHF TERMINAL Type F TERMINAL Impedance 75 ohms MECHANICAL BOOM LENGTH 90 50 in 229 87 cm WEIGHT 20 lbs 9 09 kg MOUNT Mast diameter 1 5 in 3 81 cm to 2 5 in 6 35 cm WINDLOAD 85 mph 100 mph Thrust No Ice Ice 90 lbs 152 lbs 122 lbs 208 lbs FIGURE 3 UHF Driver Section Assembly ...
Page 4: ...sure to observe element polarity as indicated by the arrows Element halves with stub extensions should be mounted on outside of crossarms Marked 3 through 9 See Figure 1 4 Use screws to assemble the two 14 UHF reflectors six inches in front of the forward X element Marked 11 See Figure 1 5 Assemble the two straight 36 1 2 VHF elements five inches ahead of the UHF reflectors Arrows indicate polarit...
