DX Engineering DXE-MBVE-1UGBRT3, Instruction Manual

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Steps A1 through A7 are specific to the MFJ-993BRT or  

MFJ-994BRT remote tuner options. 

(See step B1 for the MFJ-998RT remote tuner option)

 
A1.  Tilt the base section and re-install the antenna upper sections onto the black insulator. Using 

the new Studded band clamp, lightly tighten the clamp in place as shown.  

Once this is done, raise the antenna back up to easily work on the rest of the installation. The 
new studded band clamp will be re-positioned and 
tightened in a later step. 

 
A2.  Install the short ground wire in the corner hole on 

the tuner mounting flange using the 5/16”-18 Hex 
Nut, 5/16”-18 x 5/8” long Hex Head Cap Bolt, 
5/16” Flat Washer, 5/16” External Tooth Washer, 
5/16” Split Lock Washer and 3” Wire Assembly. 
The other end of the short 3” tuner wire goes to the 
tuner ground wing nut connection on the tuner as 
shown. 

 
 
A3.  Position two of the tuner mounting aluminum V-saddle clamps 3/4” below the top of the thick 

wall tube as shown. The second saddle clamp is used as a spacer. 

Use two 5/16”-18 Hex Nuts, two 5/16” Flat Washers, two 5/16” Split 
Lock Washers and one 5/16”-18 x 4” long U-Bolt.  Do not over tighten 
the U-Bolt Hex Nuts which can break or bend the aluminum V-saddle 
clamps. Evenly tighten each side of the U-bolt until the split lock washer 
is seated properly. 

 
 
A4.  Loosely mount the bottom aluminum saddle clamps assembly 

approximately 13-1/4” below the previously (upper) mounted saddle 
clamps using the same hardware described for the upper clamps. 
Ensure all clamps are facing the same direction. 

 (This installation method works well since the MFJ tuner mounting 
flanges can be in slightly different positions on the tuners.)