COVERAGE: Plan starts on the date of purchase. 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.background_color_0{background-color:#4096EE}.background_color_1{background-color:orange}.background_color_2{background-color:green}.background_color_3{background-color:purple}#boost_feature_rank .image_background img{position:absolute;top:30%;left:30%;height:40%;width:40%}#boost_feature_rank .bfr_radioButtonDiv{height:96px}#boost_feature_rank .bfr_radio_button{top:50%;padding:0}#boost_feature_rank .bfr_subtitle,#boost_feature_rank .feature_content_vertical_align,#boost_feature_rank .image_background{display:inline-block;vertical-align:middle;line-height:normal}#boost_feature_rank .image_background{position:relative;border-radius:50%}@media screen and (min-width:320px){#boost_feature_rank .image_background{width:65px;height:65px}}@media screen and (min-width:400px){#boost_feature_rank .image_background{width:72px;height:72px}}#boost_feature_rank .bfr_subtitle,#boost_feature_rank .feature_text{font-family:Arial,sans-serif;margin-top:0}@media screen and 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.bfr_subTitleRow{padding-left:9px;padding-right:9px;line-height:96px}#boost_feature_rank .vote_count{color:#fff;margin-bottom:0;margin-top:0!important}#boost_feature_rank .bfr_paddingTop{padding-top:18%}#boost_feature_rank .vote_button_column{float:none;margin:0 auto}#boost_feature_rank .bfr_background{background:#e0e0e0}#boost_feature_rank .hidden{display:none}#boost_feature_rank .feature-description-word-break-mobile{word-break:break-word} They seem to be more popular than the other types of beams. } This is not always true on the 11 meter CB band. .vas-hidecomponent{display:none}.vas-checkbox-column.a-box{border:0}.vas-checkbox-container .vas-checkbox{margin-left:15px;top:47%;display:block!important}.vas-preferences-column{border-left:1px solid #ddd}.vas-preferences-container{border:0;padding:0 15px}.vas-checkbox-container-alert-on{border-color:red}#vas-preferences-button .a-button-text{font-size:16px}#vas-ppd-mobile-twister-service-options 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#vas-valueProp-service-block{margin-bottom:15px!important}#vas-valueProp-service-options .vas-valueProp-service-name{font-size:15px!important;font-weight:700}#vas-valueProp-service-options .valueProp-service-price{float:right;font-size:15px!important}#vas-valueProp-service-options .vas-valueProp-bullets{font-size:13px!important}#vas-valueProp-click-through-mobile{padding-bottom:10px} Figure 8 – The radiation pattern (in free space) of the optimized 4 element yagi in the vertical position. This Blog is mainly dedicated to Amateur Radio (Ham radio) and contains external articles and personal esperiences. .atsl-spinner-section{display:flex;justify-content:center;align-items:center}.staple-action-manage-staples-link{position:absolute;bottom:0;margin-bottom:1rem!important}.staple-action-update-container{line-height:15px} (window.AmazonUIPageJS ? @charset "UTF-8";.turbo-checkout-auto-load-spinner{position:absolute;top:0;left:0;width:100%;height:100%;overflow:hidden}.turbo-checkout-auto-load-circle-container{position:absolute;top:50%;left:50%;width:50px;height:50px;overflow:hidden;border-radius:50%;background:#fff;transform:translate(-50%,-50%)}.turbo-checkout-auto-load-spinner-container{position:absolute;top:0;left:0;width:100%;height:100%;background-color:rgba(255,255,255,.75);overflow:hidden;z-index:1008}#turbo-checkout-bottom-sheet{position:fixed;background-color:#fff;bottom:0;min-height:36.5rem;height:36.5rem;left:0;right:0;-moz-webkit-transition:visibility 0s linear .4s,transform .4s linear,height .4s;-ms-webkit-transition:visibility 0s linear .4s,transform .4s linear,height .4s;-o-webkit-transition:visibility 0s linear .4s,transform .4s linear,height .4s;-khtml-webkit-transition:visibility 0s linear .4s,transform .4s linear,height .4s;-webkit-transition:visibility 0s linear .4s,transform .4s linear,height .4s;transition:visibility 0s linear .4s,transform .4s linear,height .4s;-webkit-transform:translate3d(0,36.5rem,0);transform:translate3d(0,36.5rem,0);visibility:hidden;z-index:1009}#turbo-checkout-bottom-sheet.turbo-checkout-bottom-sheet-visible{-webkit-transform:translate3d(0,0,0);transform:translate3d(0,0,0);transition-delay:0s;visibility:visible}#turbo-checkout-bottom-sheet.turbo-checkout-bottom-sheet-fullscreen{-moz-webkit-transition:transform .4s ease-in .4s;-ms-webkit-transition:transform .4s ease-in .4s;-o-webkit-transition:transform .4s ease-in .4s;-khtml-webkit-transition:transform .4s ease-in .4s;-webkit-transition:transform .4s ease-in .4s;transition:transform .4s ease-in .4s;-webkit-transform:scale(1,4);transform:scale(1,4)}#turbo-checkout-bottom-sheet.turbo-checkout-bottom-sheet-fullscreen>*{opacity:0!important;transition:opacity .4s linear}#turbo-checkout-bottom-sheet.turbo-checkout-no-animation{transition-property:none;transition-duration:0s;transition-delay:0s}#turbo-checkout-bottom-sheet-dimmer{position:fixed;top:0;left:0;height:100%;background-color:#000;background:radial-gradient(ellipse at 50% 40%,rgba(0,0,0,.5) 0,#000 100%);transition:visibility 0s linear .4s,opacity .4s linear;visibility:hidden;opacity:0;z-index:1008}#turbo-checkout-bottom-sheet-dimmer-close{position:fixed;bottom:36.5rem;right:1.5rem;line-height:1.35;-moz-webkit-transition:bottom .4s;-ms-webkit-transition:bottom .4s;-o-webkit-transition:bottom .4s;-khtml-webkit-transition:bottom .4s;-webkit-transition:bottom .4s;transition:bottom .4s}#turbo-checkout-bottom-sheet-dimmer-close:after{content:'×';font-size:40pt;font-family:Helvetica,Roboto,sans-serif;color:#fff;text-shadow:0 1px 2px #000;line-height:1.35}#turbo-checkout-bottom-sheet-dimmer-close.back-content:after{content:attr(data-after);font-size:14pt;font-family:Helvetica,Roboto,sans-serif;color:#fff;text-shadow:0 1px 2px #000;line-height:3.15}#turbo-checkout-bottom-sheet-dimmer.turbo-checkout-bottom-sheet-dimmer-visible{opacity:.75;transition-delay:0s;visibility:visible}#turbo-checkout-bottom-sheet-dimmer.turbo-checkout-no-animation{transition-property:none;transition-duration:0s;transition-delay:0s}#turbo-checkout-bottom-sheet-frame{width:1px;min-width:100%;border:0;height:100%}.turbo-checkout-fix-body{position:fixed}#turbo-loading-container{min-height:inherit;min-width:inherit;position:relative;opacity:0;-moz-webkit-transition:opacity .5s linear .25s;-ms-webkit-transition:opacity .5s linear .25s;-o-webkit-transition:opacity .5s linear .25s;-khtml-webkit-transition:opacity .5s linear .25s;-webkit-transition:opacity .5s linear .25s;transition:opacity .5s linear .25s}#turbo-loading-content{position:absolute;left:0;right:0;top:35%}#turbo-loading-spinner{display:block;margin:0 auto}#turbo-loading-text{display:block;text-align:center}.turbo-checkout-blank{opacity:0}.turbo-checkout-shown{opacity:1!important} These days the CB band is really crowded. Brief content visible, double tap to read full content. EASY CLAIMS PROCESS: File a claim anytime online or by phone. The increase in rear signal rejection is amazing! (window.AmazonUIPageJS ? Drop me an email if you are interested. }); Notify me of follow-up comments by email. #preRegistration-container .a-icon{display:none}#preRegistration-container.inline-popup-link .a-checkbox{padding-right:4px}#preRegistration-container.inline-popup-link .a-checkbox-label{display:inline;padding-left:0}#preRegistration-container .preRegistration-popup-link{position:relative}#preRegistration-alert-container #preregistrationGiftingAlert{padding-left:4px}#preRegistration-alert-container #preregistrationQuantityAlert{padding-left:4px}#gifting-option-container{margin-bottom:0} The LFA design has a patent pending and all G0KSC designs are copyright. This is the most common polarization used by DXers . 144/430MHz Dual Band NMO Antenna 2m/70cm 20 inch Mobile Radio Antenna for VHF UHF Two Way Radio. Figure 5 – The radiation pattern (in free space) of my computer optimized 4 element Yagi. Your question might be answered by sellers, manufacturers, or customers who bought this product. jQuery UI - v1.10.3 - 2013-05-03 Have a question? A complete history of NEC-2 may be found at http://www.nec2.org/. Material list for building a 4 Elements Yagi 1″ X 0.5″ Rectangular Aluminum tubing for the boom 3/8″ Aluminum tubing for antenna elements 1cm Outside diameter antenna tubing for elements holder 1pc SO239 connector Pop rivets / Rivet tool #12 AWG Copper wire with insulation (12″for Gamma match) Soldering iron 8pcs Stainless steel nuts and … Continue reading "Build a 4 Elements Yagi" Since the desktop computer has become so powerful, serious computer modeling of antennas has been put in the reach of many amateur antenna experimenters and this has lead to very optimized versions of the Yagi antenna. Cushcraft’s computer optimized third generation G0KSC Loop Fed Array (LFA) yagis are specifically designed for low noise -- hear weak signals that others can’t! Your email address will not be published. This is one reason so many people have resorted to money making snake oil fixes on their beams, such as extra “rejection wires”. .a-button.a-button-primary.primary-fresh-btn-flat,.a-button.primary-fresh-btn-flat{background:#b5d25e}.a-button.a-button-primary.primary-fresh-btn-flat.a-button-focus,.a-button.a-button-primary.primary-fresh-btn-flat:focus,.a-button.primary-fresh-btn-flat.a-button-focus,.a-button.primary-fresh-btn-flat:focus{box-shadow:0 0 3px 2px rgba(111,160,13,.5)}.a-button.a-button-primary.primary-fresh-btn-flat.a-button-focus:after,.a-button.a-button-primary.primary-fresh-btn-flat.a-button-primary:after,.a-button.a-button-primary.primary-fresh-btn-flat.a-button-primary:focus,.a-button.a-button-primary.primary-fresh-btn-flat:after,.a-button.primary-fresh-btn-flat.a-button-focus:after,.a-button.primary-fresh-btn-flat.a-button-primary:after,.a-button.primary-fresh-btn-flat.a-button-primary:focus,.a-button.primary-fresh-btn-flat:after{border-color:#6fa00d}.a-button.a-button-primary.primary-fresh-btn-flat .a-button-inner,.a-button.primary-fresh-btn-flat .a-button-inner{background:#b5d25e}.a-button.a-button-primary.primary-fresh-btn-flat.a-button-disabled .a-button-inner,.a-button.primary-fresh-btn-flat.a-button-disabled .a-button-inner{background:#ebf5d6!important}.a-button.a-button-primary.primary-fresh-btn-flat.a-button-primary.a-button-disabled:after,.a-button.primary-fresh-btn-flat.a-button-primary.a-button-disabled:after{border-color:#ebf5d6 #ebf5d6 #d8decc!important}.a-button.a-button-primary.primary-fresh-btn-flat.a-button-focus:after,.a-button.a-button-primary.primary-fresh-btn-flat.a-button-primary:after,.a-button.a-button-primary.primary-fresh-btn-flat.a-button-primary:focus,.a-button.a-button-primary.primary-fresh-btn-flat:after,.a-button.primary-fresh-btn-flat.a-button-focus:after,.a-button.primary-fresh-btn-flat.a-button-primary:after,.a-button.primary-fresh-btn-flat.a-button-primary:focus,.a-button.primary-fresh-btn-flat:after{border-color:transparent transparent #6fa00d}.atfc-conflict-dialog{max-width:270px}.atfc-slot-conflict-dialog{max-width:330px}.atfc-quantity-overflow-dialog{max-width:300px}.display-block{display:block}.width-44{width:44%!important}.atfc-spinner{background:url(https://images-na.ssl-images-amazon.com/images/G/01/navcart/spinner-white._V4_.gif) 50% 50% no-repeat;background-size:contain}.storeFrontButton{margin:20px 15px 0 15px}.storeIntroductionSheetBrandLogo{text-align:center;margin-top:15px}#offer-comparison-store-introduction-bottom-sheet-container{background-color:#eaeded}#offer-comparison-store-introduction-bottom-sheet-container .sisATCAlert{background-color:#fff}#offer-comparison-store-introduction-bottom-sheet-container .sisContent{margin:10px;background-color:#fff}#offer-comparison-store-introduction-side-sheet-container{position:fixed;overflow:visible!important;top:0;right:-610px;bottom:0;width:30%;min-width:400px;max-width:580px;background-color:#eaeded;z-index:290;box-shadow:-4px 0 5px rgba(0,0,0,.25)}#offer-comparison-store-introduction-side-sheet-container .sisCloseDiv{position:absolute;left:-30px;cursor:pointer}#offer-comparison-store-introduction-side-sheet-container .sisCloseButton{opacity:1;width:20px;height:30px;background-position:-350px -100px}#offer-comparison-store-introduction-side-sheet-container .sisATCAlert{background-color:#fff}#offer-comparison-store-introduction-side-sheet-container .sisContent{background-color:#fff}#offer-comparison-store-introduction-side-sheet-container .sisButton{min-width:40%}#offer-comparison-store-introduction-side-sheet-container .sisAdditionalContent{height:100%;background-color:#fff}#offer-comparison-store-introduction-side-sheet-background-container .sisBackground{opacity:.4;position:fixed;top:0;left:0;height:100%;width:100%;background-color:#000;z-index:280;cursor:pointer} Also limitations in NEC-2 must be accounted for. RCA VH226F Outdoor Antenna Rotator with Remote. Performance is excellent from 27.405Mhz – 27.855Mhz.