Posts tagged as:

dipole

Six Meter Dipole

by on July 12, 2010

This is another video to help you get on six meter. In this video I explain the half wave dipole antenna and show as an example the dipole that I built. A half wave dipole is one of the simplest antennas that you can build. The dipole is usually two pieces of wire, attached to a center insulator. The dipole is fed with coax, with the center conductor going to one wire and the shield going to the other wire. The formula to calculate the length of the antenna is Length in feet = 468/ Freq in MHz. So for six meter with 50.125 as the target frequency this works out to 9.34 feet or 4.67 for each of the two wires. Here is a link to a dipole calculator www.kwarc.org I build my dipole using ½ aluminum tubing attached to a center insulator that I build out of a piece of Plexiglas scrap that I picked up for free from a window glass store. I added various nuts, bolts, and u-bolts to make up the center insulator. You could also make the dipole by inserting some number 12 or 14 wire inside ½ inch pvc tubing. Or, hang the wire dipole from a tree. When you build the dipole cut your tubing or wire long, then trim to length by using an SWR meter or antenna analyzer. I use my MFJ antenna analyzer to help me tune my dipole. I also show my Elk Antennas dual band beam that mounts on the top of the mast. You can learn more about Elk at www.elkantennas.com I hope this is enough information to help you put together a simple antenna to give six meters a try. Randy

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Dipole on eBay:

Dipole Antenna RP-TNC 2.4-GHz
US $21.99
End Date: Saturday Jul-31-2010 16:29:21 PDT
Buy It Now for only: US $21.99
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HOT! 10-80 SUPER SLINKY HF HAM RADIO DX Dipole Antenna
US $29.95
End Date: Saturday Jul-31-2010 19:04:32 PDT
Buy It Now for only: US $29.95
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KEF Ci130DS DIPOLE IN-WALL SPEAKER – EACH *NEW*

June 8, 2010

Some recent dipole auctions on eBay: Share on Facebook

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FM Dipole Stereo Radio Antenna – - MAXIMUM reception

June 4, 2010

Some recent dipole auctions on eBay: Share on Facebook

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What is the magnitude of electroctatic force acting on the dipole?

May 13, 2010

A dipole P=q∆x has been placed inside a copper spherical shell or radius R at a distance a from the center of the shell (a < R). The dipole vector P points in radial direction. Share on Facebook

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ARRL 2009 10 Meter Contest KA6TRF 25W and Dipole I got 29 contacts

May 13, 2010

A short video of me (KA6TRF) during the ARRL 2009 10 Meter Contest using a HTX-100 at 25 watts into a Dipole in Colorado Springs. I got 29 contacts with a number of them from other states including GA, LA, MI, MS, WA, TX, CO, AL, and Brazil. Durng this video you can hear a [...]

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INTERMEC TECHNOLOGIES : Dipole Antenna 2.4Ghz

May 7, 2010

Sold as 1 EA Product DescriptionINTERMEC TECHNOLOGIES : Dipole Antenna 2.4Ghz : INTERMEC SPARE ANTENNA 2.4Ghz FOR T2425… More >> INTERMEC TECHNOLOGIES : Dipole Antenna 2.4Ghz Share on Facebook

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BIKETRONICS ANTENNA HIDDEN DIPOLE BT87

May 1, 2010

P44010019 Covers & Security ANTENNAS Product DescriptionDi-pole antenna has directional gain over vertical mast antennas Factory power connectors are used to make installation a snap on most Harley-Davidson touring bikes Photo`s are for reference only. Please read item title carefully…. More >> BIKETRONICS ANTENNA HIDDEN DIPOLE BT87 Share on Facebook

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RCA AH7 DIPOLE FM ANTENNA

April 25, 2010

RCA AH7 DIPOLE FM ANTENNA Share on Facebook

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Cisco Aironet 2.2dBi 2.4GHz Dipole Antenna

April 7, 2010

Cisco Product DescriptionThis antenna operates in the 2.4- 2.5-GHz band and is designed for use with Cisco Aironet radio products utilizing a reverse-polarity threaded naval connector (RP-TNC)…. More >> Cisco Aironet 2.2dBi 2.4GHz Dipole Antenna Share on Facebook

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