- May 24, 2007 at 6:40 am #6942jpjanzeKeymaster
Total posts : 500
I have a 102 inch helical wound CB whip. This whip apperently has 4 parralell windings in an attempt to give it some bandwidth across the 26-27mhz band. I wonder how this would work on a hamilton rangemaster installed with a spring. wonder what the gain over a steel whip would be? how would it compare to the 160m valor whip mentioned elsewhere on part15.us?
I’d run the experiment myself, but i Suffer from anxiety and bipolar disorder which severely retards my get up and go to do things.
it takes me 10 times as long to get something done that it takes a well person 🙁 I also suffer from diabetes which plays havoc on my physical state.
So with that said, to all who read my brainstorms, feel free to take my ideas and run with them 🙂
I rather see someone at least try them rather than them sitting somewhere in my head or cyberspace 😉May 24, 2007 at 8:31 am #15675radio8zGuest
Total posts : 45366
Interesting question but I have no way of performing this experiment. I can comment based on some other experience.
The 102″ whip is about 1/4 wavelength at 27 MHz. and I question any advantage of using the quadrafilar winding other than perhaps to reduce the production costs. Am I correct in assuming this is wound over a fiberglass core?
Using this whip on the AM BC band would appear to me to offer no advantage in terms of gain, but if someone can do the experiment you suggested, it would be interesting.
Despite the maladies you mentioned you continue to contribute to the good of the order on this board. Thanks for asking the question.
NeilMay 24, 2007 at 10:43 am #15676kc8gpdGuest
Total posts : 45366
Yes it is wound over a fiberglass core. at the top it has a short 6 inch steel stubb for tuning. I thought the quadrafilar was an attempt to make it no tune across the cb band and i’m assuming since as you know 102 inches is a 1/4 wave that this must be about a 1/2 or 5/8 wave wound up on the whip.
Rev. Robert P. Chrysafis
Universal Life Ministries
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