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MFJ-1756 Instruction Manual 

6 Meter Ground Plane Antenna 

 
 

Step 4: 

Insert the plastic bushings into each of the 1/2" round holes in the back of the antenna 
base.  The bushings are to remain flush with the base on both sides.  See Figure 4.  
 

 

 

Figure 4

  Antenna base with radial assembly. 

 

Step 5: 

With the radials in place, stack the two stainless steel plates together and place them over 
the radials in the bottom of the antenna base.  See Figure 5.  Place one lock washer on 
each of the 10-32 Phillips head bolts.  Secure the elements by inserting the 10-32 bolts 
through the bottom of the base then through the plates.  Thread the lock washers and 10-
32 stainless nuts on the bolts.  Tighten by using the Phillips screwdriver to hold the bolts 
and the 3/8" open end wrench to tighten the kep nuts. 
 
 

Содержание MFJ-1756

Страница 1: ...to a perfect 1 1 SWR Power capability is 1000 watts RF continuous CHOOSING A LOCATION FOR THE ANTENNA WARNING Improper installation and assembly can be hazardous Read these instructions thoroughly be...

Страница 2: ...find the following items Before attempting to install this antenna check the parts bag to insure that all hardware is accounted for In the event anything is missing please contact MFJ Enterprises Inc...

Страница 3: ...ds through the ceramic insulating post on top of the antenna base Thread the 10 32 nut on the 10 32 screw and tighten with a 3 8 open end wrench Do not over tighten B Locate the hole on the top of the...

Страница 4: ...directions Refer to Figure 4 for an illustration of the radial assembly Step 3 Insert a radial through the two left holes located on the front and rear of the base Refer to Figure 3 and the holes lab...

Страница 5: ...the radials in place stack the two stainless steel plates together and place them over the radials in the bottom of the antenna base See Figure 5 Place one lock washer on each of the 10 32 Phillips h...

Страница 6: ...e U bolt See Figure 6 Figure 6 U bolt assembly B Place the U bolt around the mast not included and install the saddle on the U bolt Be sure the saddle is in the correct position to bite into the mast...

Страница 7: ...he other fiberglass plate through the U bolt from the front of the antenna base Place the lock washers over the U bolt and hand thread the nuts on the bolt Tighten the nuts securely with the 7 16 open...

Страница 8: ...Cutting measurements for tuning between 50 and 54 Mhz FREQUENCY RADIATOR LENGTH CUT LENGTH 50 Mhz 54 3 4 INCHES 0 INCHES 51 Mhz 52 7 8 INCHES 1 7 8 INCHES 52 Mhz 51 INCHES 3 3 4 INCHES 53 Mhz 49 1 8 I...

Страница 9: ...the coax 3 to 4 from the mast for 50 Use an insulator PVC pipe if necessary Below the 50 air spaced length tape the coax to the mast and keep the coax taped against the mast for at least three feet TE...

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