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#1
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I've been "playing" with W7EL's EZNEC a lot (it's downright ADDICTIVE!-),
mostly comparing all-band wire antennas I might be able to construct. I know how to have it calculate SWR for, say, 3.5-29.7 MHz, but that results in a really-dense and hard-to-see chart. Is there a way to have EZNEC calculate SWR for JUST certain hambands withOUT showing the non-ham-band parts of the spectrum. For example, 3.5-4 AND 7-7.3 AND 14.0-14.35 AND ... but NOT including 4-7 OR 7.3-14 OR 14.35-21 OR .... -- --Myron A. Calhoun. Five boxes preserve our freedoms: soap, ballot, witness, jury, and cartridge NRA Life Member & Certified Instructor for Rifle, Pistol, & Home Firearm Safety Also Certified Instructor for the Kansas Concealed-Carry Handgun (CCH) license |
#2
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![]() wrote in message ... I've been "playing" with W7EL's EZNEC a lot (it's downright ADDICTIVE!-), mostly comparing all-band wire antennas I might be able to construct. I know how to have it calculate SWR for, say, 3.5-29.7 MHz, but that results in a really-dense and hard-to-see chart. Is there a way to have EZNEC calculate SWR for JUST certain hambands withOUT showing the non-ham-band parts of the spectrum. For example, 3.5-4 AND 7-7.3 AND 14.0-14.35 AND ... but NOT including 4-7 OR 7.3-14 OR 14.35-21 OR .... -- --Myron A. Calhoun. Hi Myron You've made me curious. Why do you not want to make as many VSWR charts as you have "Bands" of interest? You surely realize that you can record the VSWR curve of each band individually then save them on all on one page somewhere in your computer. I have learned things about antennas by recording (on one document) many radiation patterns with the antenna height above ground changing slightly between plots. When I scroll thru the plots it almost looks like a moving picture. I sure agree with you about the fun you can have with that EZNEC. Jerry |
#3
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Look up "Frequency Sweep, Input File" in the EZNEC manual index.
Roy Lewallen, W7EL wrote: I've been "playing" with W7EL's EZNEC a lot (it's downright ADDICTIVE!-), mostly comparing all-band wire antennas I might be able to construct. I know how to have it calculate SWR for, say, 3.5-29.7 MHz, but that results in a really-dense and hard-to-see chart. Is there a way to have EZNEC calculate SWR for JUST certain hambands withOUT showing the non-ham-band parts of the spectrum. For example, 3.5-4 AND 7-7.3 AND 14.0-14.35 AND ... but NOT including 4-7 OR 7.3-14 OR 14.35-21 OR .... |
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