CQ Amateur Radio – August 2019

(Tina Sui) #1

radials without powered trenching


equipment.


I start by mowing a strip as low as I


can without tearing out the grass by the


roots (Photo C). Now I use a hook to


hold down the radial and push it in as


far as practical. Now the wire is lower


than my lawnmower the next time I am


mowing this area. Also, there is a nat-


ural turnover of the soil. Grass roots pull


up minerals from the soil, mix with a lit-


tle sunlight, and then cover the wires.


Usually, after a summer, the radial wires


are never seen again. They bury them-


selves deeper!


The hooks (Photo D) are made out of


old coat hangers or most any solid wire.


For the wire itself, I find this a good time


to get rid of those old runs of coax, tele-


phone wire, or data cables. It’s a great


way to clean up the garage and give that


wire a new purpose. So, why old coax?


If you have actually measured the loss


in some 25-year-old RG-58, you will


understand. And what were you plan-


ning to ever use that run of RG-6 you


rescued from the cable installer for?


Hmmm ... how to measure coax loss


with your SWR meter ... that just might


be my next column. Anyway, I loss-


measure all coax runs before I put them


up. Tested way too much foam RG-8. I


only have one piece of RG-8 in my sta-


tion. I have terminal lugs soldered to


each end and it grounds a rooftop


antenna.


Questions or Ideas?


Feel free to contact me with your


antenna questions or suggestions for


column topics. You folks do come up


with some doozies at times and are


always good fodder for a future col-


umn. Email your questions to


[email protected] or


snail mail to my QRZ.COM address.


For other antenna projects, visit


.

Photo C. Sample installation of buried radials —start with your lawnmower.


Photo D. An old piece of coax can be


turned into a radial wire and hooks can


be made from coat hangers or any


other solid wire.


http://www.cq-amateur-radio.com August 2019 • CQ • 69


preciserf.com


13690 Wisteria Dr NE Aurora,


OR 97002 ph: (503) 915-2490











 





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