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MFJ-1796W
[ ] one bag of short 6-32 stainless screws (you will only use 40, the rest are extra)
[ ] 4 small "L" brackets with holes one end
[ ] 4 long "U" channel "L" brackets
[ ] 4 flat fiberglass insulators
[ ] 2 hollow white nylon insulators
[ ] 1 solid rod fiberglass center insulator
[ ] 5 split ring 1/4" washers
[ ] 5 1/4" dia. 7/16" head bolts
[ ] 5 1/4-20 x 7/16" nuts
[ ] 20 6-32 x 1/2" stainless screws
[ ] 20 6-32 x 1/4" nuts
[ ] 8 10-32 x 3/8 nuts
For installation you will need some items not supplied with the antenna installation kit.
[ ] A 6'-8' rigid mast or other mounting pipe between 1" and 1.5" outside diameter. (suitable
materials include TV mast sections, galvanized iron pipe, or heavy duty rigid conduit.)
[ ] Quality low-loss 50-Ohm coax with a PL-259 from antenna to transmitter.
[ ] Either a SWR meter or Analyzer (MFJ-207 or MFJ-249)
SAFETY PRECAUTIONS:
WARNING! You can be killed if the antenna, feedline, or the equipment used to install the
antenna accidentally contacts any utility lines. Never install an antenna near power lines!
1. Be careful while climbing and carrying the antenna. It is heavy enough to cause you to lose your
balance if it is handled too casually or if the capacitance spokes are snagged on a gutter, ladder,
tree limbs and so forth.
2. Mount the antenna high enough so that it is out of reach. The ends of the capacitance spokes can
cause eye injury, serious RF burns or both.
3. Make sure that the mast is sturdy enough to support the 15 pounds weight and the wind load of
approximately 2 square feet.
ASSEMBLY and INSTALLATION PROCEDURE
During assembly of this antenna refer to the figures in this manual and the picture on Page 1.
The assembly instructions tell you how to first install the balun and then connect the upper and
lower elements. Last the loading coil assemblies are assembled and installed on the upper and
lower elements.
After the antenna is assembled it is checked and adjusted for resonant frequency and SWR. It
can then be mounted on a tower or rooftop and given final adjustments.
NOTE: Wear safety glasses whenever working near or on this antenna.
WARC Band Vertical Antenna
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