Product Information


40 meter cage dipole

Each cage dipole is hand made with quality and care, using materials that will take the abuse of even the most harsh enviroment.

The wire used is #14 AWG 7 STRAND Copper Hard Drawn with .030 High Density PE Black Jacket. Nominal OD .133”.

Making this an excellent choice for antenna wire!  Will not stretch over time as would a wire that is not hard drawn.

The center connector used is the W2DU ANsulatorW2DU End-sulators


The balun used is the Choke-Kit




Frequency:  1.8 - 60 MHz


Through-line impedance:  50 ohms (nominal)


Insertion loss: less than 0.2 dB at 60 MHz


Common mode inductance: 24 uH (nominal)


Power handling: 2kW continuous duty


Load mismatch tolerance:  greater than 5:1 VSWR at 2kw


Connectors:  PL-259 and SO-239


Ferrite material:  seven Fair-Rite P/N 2643102002 (850 Initial Perm, 2900 gauss at 10 oersteds, nickel-zinc)


Specifications subject to change without notice


24 microhenries provides an inductive impedance of 270 ohms at a frequency of 1.8 MHz.


(multiply Inductance in microhenries by Frequency in megahertz by 6.28 to get Inductive Impedance in ohms)


*For a full explanation on how a balun works, see Chapter 9 of ŇTransmission Line Transformers" by Jerry Sevick, ISBN 1-884932-18-5


The cage material is 7" round X 1/4" thick white ABS plastic.

The cage dipole is a 1/2 wave in size aprox. 66' in length. Each side has 6 wires, held together with galvinized cable clamps, crimped with a copper sleeve and soldered, then covered with adhesive lined heat shrink.

The 40 meter cage dipole has a bandwidth spread of almost 1 mhz. 3:1 and under.

The 40 meter cage dipole can be installed flat or inverted V, recommened  height 25'.

I did preform a test at center 12 feet off the ground, ends at 7 feet and it went flat 1:1 swr.  The higher i went into the air the wider the bandwidth became.

Remember as with all antennas, be safe and use your head. Stay away from power lines and have a spotter around if your on the roof or tower.



All our Antennas are custom made to order.
And will usally ship in 7 to 10 business days .
Some times manufacturers and parts availability will cause some delays.
But NOTE: We Reserve the rigt to substitute wire between manufacturers run.





Current Stock:
Shipping Cost: Calculated at Checkout
Weight: 25.00 LBS
Width: 12.00
Height: 24.00
Depth: 12.00
MPN: Ni4L 40 meter cage dipole
SKU: 40metercage

Customer Reviews 5 (2 Reviews) Write a review of this product

5 Stars
Love this Antenna !

WOW - I love this antenna. I had tried many other antennas & was disapointed time after time. I was almost ready to give up. They I got this antenna & what a difference. Works great. Tunes up well & has a wide band of low SWR. Works great. I would defenately recomend this to any ham. Thanks guys, you save me with my hobbie.

5 Stars
Finally an Antenna that works in an HOA & CCR limited environment

I am in a HOA/CCR controlled community & have very limited antenna options. I have been frustrated with antenna issues including several vertical antennas from Gap, Diamond, Hy-Gain & Hussler, Commet, etc. Even Dipoles whree I had to bend them to fit, etc did not work very well. Even the Gap Challanger & Titan or even a Diamond BB7V & CP-6AR all frustrated my ability to get my signal out. I tried a diopole in my attic & it was a waste of time & effort as well. Finally I purchased a Cage Dipole from Ni4L Antenna & Electronics. WOW - What a difference. I strung up the Cage Dipole as a steep inverted "V" antenna in my small back yard (15 by 30 ft) To the peak of my roof & it worked like a charm. Save me from leaving the HAM radio hobby. Thanks.