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MFJ-1779B ½ Wavelength Dipole Antenna 

Instruction Manual 

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. 
 

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