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Adjusting a colinear antenna
Hello Jim I built a 910mhz coax antenna using 6 - 1/2 wave elements,
1/4 wave on bottom and the top. I used 3/8" copper hardline instead of coax i had to tried to adjust for a faster .88 VP but found using the same length as required for RG58 worked just as well. Initally i did not put the antenna up because at ground level it did not work very well on recieve, i was going to throw it out but desided to put it up anyway. It really made a big difference once it was in the air @ 25', it works much better than a Sinclair commercial omni i had been using, |
#12
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Adjusting a colinear antenna
Tucker,
Thanks, I found that you have to get it up in the air also for it to work. It does wokr better than a 1/4 wave antenna. Jim wrote in message ups.com... Hello Jim I built a 910mhz coax antenna using 6 - 1/2 wave elements, 1/4 wave on bottom and the top. I used 3/8" copper hardline instead of coax i had to tried to adjust for a faster .88 VP but found using the same length as required for RG58 worked just as well. Initally i did not put the antenna up because at ground level it did not work very well on recieve, i was going to throw it out but desided to put it up anyway. It really made a big difference once it was in the air @ 25', it works much better than a Sinclair commercial omni i had been using, |
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