
Remote Tuner Options
for the
DXE-MBVE-1
Vertical Antenna
DXE-MBVE-1UGBRT3
for the MFJ-993BRT
300 Watt Remote Tuner
DXE-MBVE-1UGBRT4
for the MFJ-994BRT
600 Watt Remote Tuner
DXE-MBVE-1UGRT8
for the MFJ-998RT
1500 Watt Remote Tuner
DXE-MBVE-1-RT-INS Revision 0
MFJ-993/994BRT Shown MFJ-998RT Shown
© DX Engineering 2015
1200 Southeast Ave. - Tallmadge, OH 44278 USA
Phone: (800) 777-0703 - Tech Support and International: (330) 572-3200
Fax: (330) 572-3279 - E-mail: DXEngineering@DXEngineering.com

Introduction
DX Engineering
Antenna Model
Numbers
DXE-MBVE-
TBHW
Hardware Kit
DXE-MBVE-1-
UGHW
Hardware Kit
DXE-MBVE-
THW
Hardware Kit
MFJ-993BRT
Tuner
300 Watt
MFJ-994BRT
Tuner
600 Watt
MFJ-998RT
Tuner
1500 Watt
DX Engineering
Upgrade Model
Numbers
DXE-MBVE-
TBHW
Hardware Kit
DXE-MBVE-1-
UGHW
Hardware Kit
DXE-MBVE-
THW
Hardware Kit
MFJ-993BRT
Tuner
300 Watt
MFJ-994BRT
Tuner
600 Watt
MFJ-998RT
Tuner
1500 Watt
This instruction manual describes the optional remote tuner upgrade packages that use the MFJ
remote tuners available for the DXE-MBVE-1 multi-band vertical antenna system.
There are 5 complete DXE-MBVE-1 antenna systems for use with MFJ the Remote Tuners. These
packages include the DXE-MBVE-1 antenna with mounting hardware and remote tuner options:
X = Included
There are 5 upgrade retrofit kits for existing DXE-MBVE-1 systems for use with the MFJ remote
tuners. Two of the upgrade kits have only the mounting hardware needed for use with a customer
owned MFJ remote tuner, the other kits include the mounting hardware and an MFJ remote tuner.
X = Included
A complete manual including the assembly of the DXE-MBVE-1 antenna system shows detailed
information on the antenna and is a good reference when performing this upgrade. If you have
misplaced your original DXE-MBVE-1 manual, you can view or download a copy from the DX
Engineering web site at www.DXEngineering.com.
Additional Material Needed but not Supplied:
JTL-12555 Jet-Lube™ SS-30 Pure Copper Anti-Seize 12555 - To ensure good electrical
and RF connection for Aluminum Element Sections and also used on the threads of Stainless
Steel Hardware to prevent galling (seizing) and aid in proper tightening.
11/64” drill bit and drill
Pencil
Tape measure
Screwdriver
Standard tools including wrenches, nut drivers, etc.
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DXE-MBVE-1-UGHW Parts Listing
DXE-MBVE-1UGHW Upgrade Insulator Hardware Kit
For the MFJ-993BRT/MFJ-994BRT/MFJ-998RT Tuner mounting option
Insulator, Black, Delrin, MBVE-1 Conversion
#10 Self Tapping Screw (requires customer supplied 11/16” drill bit)
10” Wire Assembly, 12 ga, Black Insulated, two `1/4” ring terminals
DXE-MBVE-THW Mounting Hardware Kit
For the MFJ-993BRT/MFJ-994BRT Tuner mounting option
U-Bolt, Stainless Steel, 2.5”, 4” long, 5/16”-18 threads
5/16”-18 Hex Nut, Stainless Steel
5/16”-18 x 5/8” long, Hex Head Cap Bolt, Stainless Steel
5/16” Washer, Flat, Stainless Steel
5/16” Washer, External Tooth, Stainless Steel
5/16” Washer, Split Lock, Stainless Steel
2-/4” Element Clamp with Threaded Stud, Stainless Steel
10-24, Hex Nut, Stainless Steel
#10 Washer, Split Lock, Stainless Steel
#10 Washer, Flat, Stainless Steel, Thick
#10 Washer, External Tooth, Stainless Steel
3” Wire Assembly, 12 ga, Black Insulated, two ring terminals
10” Wire Assembly, 12 ga, Black Insulated, two #10 ring terminals
DXE-MBVE-TBHW Mounting Hardware Kit
For the MFJ-998RT Tuner mounting option
U-Bolt, Stainless Steel, 3.75” x 5/16”-18
Tuner Shelf Bracket, Stainless Steel
5/16” Washer, Split Lock, Stainless Steel
5/16” Washer, Flat, Stainless Steel
5/16” Washer, External Tooth, Stainless Steel
5/16” Hex Nut, Stainless Steel,
2.25” Element Clamp with Threaded Stud, Stainless Steel
10-24 Hex Nut, Stainless Steel
1/4”-20 x 3/4” long Hex Bolt, Stainless Steel
1/4”-20 Hex Nut, Stainless Steel
1/4”-20 Acorn Hex Nut, Stainless Steel
1/4” Washer, External Tooth, Stainless Steel
#10 Washer, Split Lock, Stainless Steel, Thick
#10 Washer, Flat, Stainless Steel, Thick
#10 Washer, External Tooth, Stainless Steel
10” Wire Assembly, 12 ga, Black Insulated, two #10 ring terminals
DXE-MBVE-THW Parts Listing
DXE-MBVE-TBHW Parts Listing
- 2 -

Basic Installation for all remote tuner models
1. Disconnect your coaxial cable that is connected to the UNUN.
Remove the UNUN, UNUN mounting bracket and the braided
feedline connections from the DXE-MBVE-1 antenna. The
UNUN will not be used when the remote tuner is installed.
2. Tilt the DXE-MBVE-1 antenna down so you can separate the base
section from the antenna easily to work on installation of the new
parts on the base section. Ensure the antenna is supported.
3. Separate the antenna from the base tube (which is installed in the tilt base insulated
channel) by loosening the element clamp as shown. Raise the base section back to
the vertical position.
4. Install the black Delrin insulator in the base section tube as
shown.
Approximately 1-1/2” below the joint between the black
insulator using a customer supplied 11/64” drill bit, drill a
hole through the base tube into the black insulator. The hole
only needs to be drilled into the insulator approximately 1/8”.
Install the #10 Slotted hex head self tapping screw through
the aluminum base section into the black insulator. Tighten
the screw so it is even with the surface of the base tube. The
screw holds the insulator in place and does not allow it to
rotate.
(Step 5 is shown after steps A & B)
- 3 -