MFJ - MFJ-1785 - ROTATABLE DIPOLE, 80/40/20 METER

MFJ 80/40/20 Meter Rotatable Dipole

A full legal limit efficient 80, 40, and 20-meter antenna that is shorter than a 20-meter dipole.

Now you can operate the low bands on 80, 40, and 20 Meters with a true rotatable dipole that�ll blend in with the sky!

Take advantage of the excellent propagation of the low bands during the low sunspot cycle.
This rotatable dipole lets you focus your signal in the direction you want so you can work some real DX!

Small, low profile, inconspicuous.

The entire antenna length is used on all three bands.

The MFJ-1785 is constructed of 6063 T-6 aircraft strength aluminum tubing with a solid center fiberglass insulator and handles 1500 Watts SSB/CW.

The 80 and 40 meter end-loading coils are wound on fiberglass forms with Teflon wire, and resonated with capacitance hats to ensure an extremely low-loss structure.

Balun included!
33 feet wide.

Requires a medium-duty rotator

The MFJ-1785 is 1/2 wavelength on the 20 meter band. The antenna uses efficient end loading coils with
capacitance hats for operation on the 40 and 80 meter bands. The end-loading coils are wound on
fiberglass forms with TeflonTM wire and capacitance hats.
The MFJ-1785 boom is made of 6063 T-6 aircraft strength aluminum tubing. The center insulator is 1.25
inch solid fiberglass rod. The boom is supported by 3/16” cable isolated from the boom with ceramic
insulators.
Assembly will require approximately one afternoon. The MFJ-1785 will radiate a maximum of 1500
watts PEP on 80-40-20 meters.
Electrical Specifications
Power
Band CW SSB 2:1 SWR BW
80m 1500 1500 25KHZ
40m 1500 1500 150KHZ
20m 1500 1500 1 MHz
Mechanical Specifications
Mast Size: 1 3/4 to 2” diameter
Overall Length: 34 feet
Turning Radius: 17 feet