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MFJ-1779C ½ Wavelength Dipole Antenna
3. Attach a coax to the antenna and place it in the desired location. Be sure to
leave enough rope so the antenna can be lowered for adjustment. Raise the
antenna into is normal operating position using a strong nylon rope. Check
the resonance point. If the resonance point is below the desired frequency the
antenna will need to be shortened.
4. Adjust the antenna according to your calculations or the chart above. Equal
lengths should be removed from each side of the antenna.
5. Install the insulators on each end of the antenna temporarily by placing the
wire through one end hole of the insulator and winding it back around the
dipole wire. Extra wire can be wrapped back around the dipole temporarily
while testing. Always check the resonance point each time wire is removed.
6. When the desired frequency is reached make 5-7 wraps of the wire on the
ends of the dipole for permanent installation. Then raise the antenna until the
desired height is reached and secure it in place by connecting the nylon rope
to a stable support.
TECHNICAL ASSISTANCE
If you have any problem with this unit first check the appropriate section of this
manual. If the manual does not reference your problem or your problem is not
solved by reading the manual you may call MFJ Technical Service at 662-323-
0549 or the MFJ Factory at 662-323-5869. You will be best helped if you have
your unit, manual and all information on your station handy so you can answer
any questions the technicians may ask.
You can also send questions by mail to MFJ Enterprises, Inc., 300 Industrial
Park Road, Starkville, MS 39759; by Facsimile to 662-323-6551; or by email to
techinfo@mfjenterprises.com. Send a complete description of your problem, an
explanation of exactly how you are using your unit, and a complete description
of your station.
Instruction Manual
3
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