[Antennas] Home Brew Portable Vertical Antenna

2002年9月23日 03:30:37 -0500

Take this one step farther...Get a piece of 3 inch PVC and a 1/4 inch dowel. Use #16
wire and wind your own coil on the 3" pipe. Use the 1/4 dowel to raise each turn
for clipping. What I have done is wind a piece of nylon cord between the wire turns
to maintain spacing. Once the coil is wound and secured I remove the cord. Use clips
on the raise portion. Use 3 inch to 1 inch reducer on ends of coil form and a 1 inch
to 3/8 reducer on top of coil to take a standard 9 foot whip. Should work on 80 thru
10 meters with max coil at 80 and no coil on 10. Good luck
Bob, AF2HD
At 05:44 PM 9/22/2002 -0500, Wendell Wyly W5FL wrote:
>The standard answer in the past was to buy a piece of coil stock that was
>about 3 inches in diameter and about 8 inches long and wound with about #16
>or larger wire, then use a small alligator clip to clip onto the proper
>turn. Unfortunately, I don't know if this coil stock is still available. I
>see a movile every once in a while that has done that. Plexiglass rod was
>normally used to join the top and bottom sections. That was my first mobile
>antenna for 80, 40, 20, 15, and 10 meters.
>>-----Original Message-----
>From: [email protected]
>[mailto:[email protected]]On Behalf Of Charles Greene
>Sent: Sunday, September 22, 2002 6:59 AM
>To: Antennas
>Subject: [Antennas] Home Brew Portable Vertical Antenna
>>>Hi All,
>>I am making a home brew portable vertical antenna. It will be 16'+ long
>and have two elevated 1/4 wave radials. It has an insulator at 8' and a
>shorting bar so I can configure it for 10 or 20. I want to put a bug
>>>- - - 
>>Your moderator for this list is:
>Larry Wilson KE1HZ [email protected]
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