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Survivor Antennas
40 Meter Antenna 2.5 ft 3dbi / 2dbd gain
An Amazing 40 meter antenna.

 

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40 Meter antenna on a pole

ORDER HERE:
It looks like the 80 meter version but is half the size vertically and only 2 inches in diameter.  It's 2.5 feet tall, and 2 inches in diameter, not including the pole mount.

Price: $ 124.95 includes base of your choice. Floor mount or Pole mount.

Extra floor mount: $ 9.00 free shipping
Extra Pole mount: $ 15.00  free shipping

Shipping free to the lower 48 states ground, see ordering page.

 

This antenna is made from 2 inch pvc pipe, and the bottom mounting system  is interchangeable. The pole mount is shown. The antenna has a SO239 connector at the base to connect the supplied delay line and choke. On 40 meters the delay line is 21 feet long and is not part of the radiating section. The radiating part of the antenna is 80% of its length from the top down. SWR is 1.2:1 and the bandwidth is ~150 khz to the 1.5 vswr points. This antenna can (in some installations) cover the whole 40 meter band with a swr of less than 1.7:1.  The antenna is weather proof and can tolerate winds of 70 miles an hr. The pole mount is designed to slide over a antenna mast which is less than 1.25 inches in diameter, (most are 1 inch) with a stop bolt preventing the mount from sliding into the antenna. The stop bolt can be removed and you can drill a hole into the mast and put the bolt thru the mast and mounting pipe for a more secure mount. We have had no problems with just sliding the antenna onto the mast and forgetting it. Total length with the mounting pole is ~6 ft. The pole mount itself is ~4 ft long and can be cut shorter if needed. You can paint the antenna any color you desire as long as there is no metal in the paint. You can place the antenna on the floor in an apartment, or window, or on a table. The only requirement is that you not place any metal objects within a few feet and do not set it on a metal table.
Specs:  1SM-40
Height: approx. 2.5 ft
Weight: approx. 8 lbs.
Gain: 3 dbi / 2 dbd, based on testing. Read design page or testimonials.
SWR at resonance: 1.2:1~ *
1.5 SWR Bandwidth: aprox. 150 khz.
Note: I recommend a antenna tuner for maximum bandwidth and use of the band.
Power handling: 600 watts CW, 1 Kw SSB.
Mounting: Pole up to 1.25 in. / or Floor/base mount. Specify which one when ordering. Pole mnt is standard
1 year limited warrantee.
Note: Floor mount is not for setting on the actual ground. It is for apartments or tables that are aprox. 4 feet or more off of the actual ground. Setting the antenna on the ground will prevent it from radiating efficiently. It will also weaken the receiving properties when setting directly on the ground.

* Resonance is affected slightly by positioning of the delay line. This does not affect performance. However it will shift the swr point a little. With a tuner you can easily cover the whole band and Mars / Cap frequencies or I can adjust it for you.