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Introduction: 

The MFJ-1835 is a compact five-band loop array especially 

designed for limited-space installations. Using horizontal polarization, it packs a 
3-4 dB gain advantage over ground-independent verticals plus superior immunity 
to local noise and RFI. In addition, MFJ’s highly efficient Spider-Match® network 
and adjustable tuning tabs guarantee low minimum-SWR on every band. The 
MFJ-1835 only measures 9-feet on a side, yet it features a full half-wave element 
on every band for no-compromise DX performance -- even when running QRP! 
The MFJ-1835 is solidly constructed to take on extreme weather. With sky-gray 
fiberglass spreaders and stranded-wire elements, it blends in with any backdrop. 
Best of all, it’s omni-directional, so you can omit the rotor and mount it high in the 
air using standard low-cost TV-antenna hardware.  
 

Parts List: 

Before starting assembly, please check the package contents against 

the parts list below to ensure all items have been included. 
 
[  ]  

8" x 8" Aluminum Mounting Plate (737-1835) 

[  ] 

72" Fiberglass Element Support Tube (811-1835-1) 

[  ] 

43" Fiberglass Feed Tube (811-1835-2) 

[  ] 

50-Ohm to 12.5 Ohm Match Box (10-1835-1) 

[  ]  

1  

Mast-Mounting Bracket (735-1835) 

[  ] 

5  

Element End-insulators, 12" x .5" (737-0115) 

[  ] 

Rolls, 10-Meter Element Wire (13-1835-10) 

[  ] 

Rolls, 12-Meter Element Wire (13-1835-12) 

[  ] 

Rolls, 15-Meter Element Wire (13-1835-15) 

[  ] 

2  

Rolls, 17-Meter Element Wire (13-1835-17) 

[  ] 

Rolls, 20-Meter Element Wire (13-1835-20) 

[  ] 

1  

Parts Pack (17-1835-1) 

 

Parts Pack Contents: 

[  ]  

31 

6-32 x 1" screw (656-1000S) 

[  ] 

14  

6-32 x 3/8" screw (656-0375S) 

[  ] 

47 

6-32 Kep Nut (705-0632S-K) 

[  ] 

21 

#6 Flat Washer (561116) 

[  ]  

  2 

U-Bolt Assembly (758-9199) 

[  ] 

  5 

Cable Tie (745-2158B) 

[  ] 

10 

Tuning adjustment strips (737-1615) 

 
If any components are missing or damaged, refer to the warrantee for 
replacement instructions. 
 

Preparation and Site Safety: 

The MFJ-1835 is lightweight, but a second pair of 

hands will always ensure greater safety during assembly and installation. Install 
fiberglass spreaders on a flat level surface (driveway, garage floor, etc.) and 
complete the assembly using a 5-6 foot temporary mast or pole. The mast will 
allow you to string and tension wire element at eye level. Always wear safety 
glasses when working with spreaders, and keep the assembly area clear of 

Summary of Contents for MFJ-1835

Page 1: ...12 15 17 20 Meter Cobweb Antenna Instruction Manual Caution Read All Instructions Before Assembling and Using This Product MFJ 300 Industrial Park Road Starkville MS 39759 USA Tel 662 323 5869 Fax 66...

Page 2: ...35 4 72 Fiberglass Element Support Tube 811 1835 1 1 43 Fiberglass Feed Tube 811 1835 2 1 50 Ohm to 12 5 Ohm Match Box 10 1835 1 1 Mast Mounting Bracket 735 1835 5 Element End insulators 12 x 5 737 01...

Page 3: ...d during final assembly and installation Mounting Bracket Holes Mounting Plate Locate the second mounting plate and position it so all mounting holes align with the first plate Install one of the fibe...

Page 4: ...rt tube The two remaining tie wraps may be used later to secure your coax to the feed tube Install flat washers on four 4 1 inch screws and insert them at the four 10 meter spreader locations holes ne...

Page 5: ...ng the rig lugs as needed to other mounting holes in the insulators Do not tension the wires so tightly that they distort the spreaders or pull the frame out of square The objective is to equalize ten...

Page 6: ...clear of the insulator and add a short length of wire using a 6 32 screw Bandwidth The 2 1 bandwidth for a half wave loop is normally much narrower than it is for a straight line half wave dipole so...

Page 7: ...tallation using one or more runs of 10 solid aluminum ground wire Also always install a barrel connector or junction box where the cable enters your building and unhook it at the first sign of threate...

Page 8: ...ners who attempt to repair defective units Technical consultation is available by calling 662 323 5869 5 This warranty does not apply to kits sold by or manufactured by MFJ Enterprises Inc once assemb...

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