Modified Trucker 5000 for Ham band

[fasteddy]

OK, here is what I would like to accomplish. Take my Trucker 5000 and add shaft and stinger to make it work on 15 or 17 meters. I did some research and found that the coil is equal to 53 inches of antenna. So if I use the 22 inch shaft, the coil (which is 53 inches), and a 58 inch whip I would have 133 inches of antenna, (1/4 wave on 21.375), in a 80 inch antenna. Did I figure this right or do I need some more help here<img src=http://users.joplin.com/dutch64804/posticon60.gif ALT=":60"> ? I guess the question I also have is, do you add the length of the shaft in to the lenght needed? Is that a confusing question or what?<img src=http://users.joplin.com/dutch64804/posticon5.gif ALT="5"> Or could the use the 36 inch shaft and a 63 inch whip for 17 meters?

<img src=http://users.joplin.com/dutch64804/posticon58.gif ALT="58"> in advance

Ed

KC0PZE


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[AudioShockwav]

Hello Fasteddy(how ya been?) I think he wanted you to see the formula at the bottom....







For frequencies other than those listed above, use the following formula:





468 ÷ F = ½W



½W ÷ 2 x 12 - C = Whip Length

WHERE: F = Frequency desired ; W = Wavelength ; C = Coil Factor

(Coil Factor : for W-1000 use : C=41.65 ; for Trucker 5" use: C=52.21 ; for Trucker 10" use C=53.84





The lengths calculated will be an approximate starting point only. Trim for best SWR.





73

Jeff




CDX 339

RadioActive

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