{"product_id":"4-way-sma-splitter-combiner-1-500mhz","title":"1–500 MHz 4-Way SMA Splitter \/ Combiner","description":"\u003c!-- RF.Guru reviewed product theme: electronics; reviewed 2026-11-02 --\u003e\n\u003cstyle\u003e\n.rf-product.rf-electronics {\n  --el-ink: #14252b;\n  --el-muted: #60737a;\n  --el-panel: #f6faf9;\n  --el-line: #cfdddd;\n  --el-board: #123d3b;\n  --el-board-dark: #071f24;\n  --el-trace: #4de1cf;\n  --el-copper: #e89b4a;\n  --el-copper-soft: #fff3e5;\n  --el-blue: #247c98;\n  color: var(--el-ink);\n  font-size: 1.02em;\n  line-height: 1.66;\n}\n\n.rf-product.rf-electronics.rf-electronics-control {\n  --el-board: #27355b;\n  --el-board-dark: #111b37;\n  --el-trace: #83e9dd;\n  --el-copper: #f2aa58;\n}\n\n.rf-product.rf-electronics * { box-sizing: border-box; }\n.rf-product.rf-electronics p { margin: 0 0 1em !important; }\n.rf-product.rf-electronics h2,\n.rf-product.rf-electronics h3,\n.rf-product.rf-electronics h4 { font-weight: 750 !important; line-height: 1.3 !important; 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}\n\n.rf-product.rf-electronics .product-eyebrow {\n  position: relative;\n  z-index: 1;\n  display: inline-block;\n  color: #092a2a;\n  background: var(--el-trace);\n  border-radius: 999px;\n  padding: .32em .78em;\n  margin-bottom: .8em;\n  font-size: .75em;\n  font-weight: 850;\n  letter-spacing: .09em;\n  text-transform: uppercase;\n}\n\n.rf-product.rf-electronics .product-hero h2 {\n  position: relative;\n  z-index: 1;\n  max-width: 850px;\n  color: #fff !important;\n  font-size: clamp(1.75em, 4.8vw, 2.65em) !important;\n  margin: 0 0 .38em !important;\n}\n\n.rf-product.rf-electronics .product-hero p {\n  position: relative;\n  z-index: 1;\n  max-width: 800px;\n  color: rgba(255,255,255,.92);\n  font-size: 1.06em;\n}\n\n.rf-product.rf-electronics .product-tags { position: relative; z-index: 1; display: flex; flex-wrap: wrap; gap: .42em; }\n.rf-product.rf-electronics .product-tags span {\n  border: 1px solid rgba(77,225,207,.48);\n  background: rgba(5,29,39,.28);\n  border-radius: 999px;\n  padding: .22em .65em;\n  color: rgba(255,255,255,.95);\n  font-size: .78em;\n}\n\n.rf-product.rf-electronics .video-frame {\n  position: relative;\n  width: 100%;\n  padding-bottom: 56.25%;\n  border: 1px solid #b8d6d3;\n  border-radius: 13px;\n  overflow: hidden;\n  margin: 1.25em 0 1.5em;\n  background: var(--el-board-dark);\n  box-shadow: 0 12px 26px rgba(8,38,43,.16);\n}\n.rf-product.rf-electronics .video-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }\n\n.rf-product.rf-electronics .service-grid,\n.rf-product.rf-electronics .feature-grid,\n.rf-product.rf-electronics .package-grid,\n.rf-product.rf-electronics .doc-grid,\n.rf-product.rf-electronics .photo-grid { display: grid; gap: .82em; margin: 1em 0 1.45em; }\n.rf-product.rf-electronics .service-grid,\n.rf-product.rf-electronics .package-grid,\n.rf-product.rf-electronics .doc-grid,\n.rf-product.rf-electronics .photo-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }\n.rf-product.rf-electronics .feature-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }\n\n.rf-product.rf-electronics .service-card,\n.rf-product.rf-electronics .feature-card,\n.rf-product.rf-electronics .package-card,\n.rf-product.rf-electronics .doc-card,\n.rf-product.rf-electronics .rf-figure {\n  background: #fff;\n  border: 1px solid var(--el-line);\n  border-radius: 10px;\n  padding: 1em;\n  box-shadow: 0 7px 18px rgba(15,53,58,.06);\n}\n.rf-product.rf-electronics .service-card { border-left: 5px solid var(--el-copper); 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grid-template-columns: repeat(4,minmax(0,1fr)); gap: .55em; margin: 1.1em 0 1.55em; }\n.rf-product.rf-electronics .path-node {\n  position: relative;\n  min-height: 104px;\n  display: flex;\n  flex-direction: column;\n  justify-content: center;\n  text-align: center;\n  color: var(--el-board-dark);\n  background: #eaf8f6;\n  border: 1px solid #b8ddd7;\n  border-radius: 10px;\n  padding: .78em .62em;\n  font-size: .85em;\n  line-height: 1.38;\n}\n.rf-product.rf-electronics .path-node b { display: block; margin-bottom: .2em; }\n.rf-product.rf-electronics .path-node:not(:last-child)::after { content: \"→\"; position: absolute; z-index: 2; right: -.68em; top: 50%; transform: translateY(-50%); color: var(--el-blue); background: #fff; border-radius: 999px; padding: 0 .14em; font-size: 1.2em; font-weight: 850; }\n\n.rf-product.rf-electronics .table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; border: 1px solid var(--el-line); border-radius: 9px; margin: 1em 0 1.5em; }\n.rf-product.rf-electronics table { width: 100%; border-collapse: collapse; margin: 0; }\n.rf-product.rf-electronics th,\n.rf-product.rf-electronics td { border-right: 1px solid #dce6e5; border-bottom: 1px solid #dce6e5; padding: .7em .78em; text-align: left; vertical-align: top; line-height: 1.48; }\n.rf-product.rf-electronics th:last-child,\n.rf-product.rf-electronics td:last-child { border-right: 0; }\n.rf-product.rf-electronics tr:last-child td { border-bottom: 0; }\n.rf-product.rf-electronics thead th { color: #fff; background: var(--el-board); }\n.rf-product.rf-electronics tbody tr:nth-child(even) { background: var(--el-panel); }\n\n.rf-product.rf-electronics .measurement-box,\n.rf-product.rf-electronics .safety-box,\n.rf-product.rf-electronics .install-box { border-radius: 9px; padding: 1em 1.1em; margin: 1.3em 0; }\n.rf-product.rf-electronics .measurement-box { background: #eaf8f6; border: 1px solid #b8ddd7; border-left: 5px solid var(--el-trace); }\n.rf-product.rf-electronics .safety-box { background: #fff4e8; border: 1px solid #ebc493; border-left: 5px solid var(--el-copper); }\n.rf-product.rf-electronics .install-box { background: #edf6fa; border: 1px solid #c5dce5; border-left: 5px solid var(--el-blue); }\n.rf-product.rf-electronics .measurement-box p:last-child,\n.rf-product.rf-electronics .safety-box p:last-child,\n.rf-product.rf-electronics .install-box p:last-child { margin-bottom: 0 !important; }\n\n.rf-product.rf-electronics .rf-figure { position: relative; padding: 0; overflow: hidden; margin: 0; }\n.rf-product.rf-electronics .rf-figure img { display: block; width: 100%; height: auto; }\n.rf-product.rf-electronics .rf-figure figcaption { color: var(--el-muted); font-size: .86em; line-height: 1.46; padding: .75em .85em .85em; }\n.rf-product.rf-electronics .rf-measurement-zoom { position: relative; display: block; color: inherit !important; cursor: zoom-in; overflow: hidden; }\n.rf-product.rf-electronics .rf-measurement-zoom img { transition: transform .2s ease, filter .2s ease; }\n.rf-product.rf-electronics .rf-measurement-zoom:hover img,\n.rf-product.rf-electronics .rf-measurement-zoom:focus-visible img { transform: scale(1.018); filter: brightness(.92); }\n.rf-product.rf-electronics .rf-measurement-zoom:focus-visible { outline: 3px solid var(--el-trace); outline-offset: -3px; }\n.rf-product.rf-electronics .rf-zoom-label { position: absolute; right: .65em; bottom: .65em; color: #fff; background: rgba(7,31,36,.9); border: 1px solid rgba(77,225,207,.65); border-radius: 999px; padding: .42em .68em; font-size: .78em; font-weight: 800; line-height: 1.2; box-shadow: 0 4px 18px rgba(0,0,0,.28); }\n.rf-product.rf-electronics .rf-image-lightbox { width: min(96vw, 1500px); max-width: none; height: min(94vh, 1100px); max-height: none; margin: auto; padding: 2.9rem 1rem 1rem; color: #fff; background: #06171c; border: 1px solid rgba(77,225,207,.55); border-radius: 12px; box-shadow: 0 24px 80px rgba(0,0,0,.7); overflow: hidden; }\n.rf-product.rf-electronics .rf-image-lightbox::backdrop { background: rgba(0,8,12,.88); backdrop-filter: blur(5px); }\n.rf-product.rf-electronics .rf-lightbox-stage { display: grid; grid-template-rows: minmax(0,1fr) auto; align-items: center; width: 100%; height: 100%; }\n.rf-product.rf-electronics .rf-lightbox-stage img { display: block; width: 100%; height: 100%; min-height: 0; object-fit: contain; }\n.rf-product.rf-electronics .rf-lightbox-caption { margin: .75rem 0 0 !important; color: #e7f7f4; font-size: clamp(.92rem,1.6vw,1.08rem); line-height: 1.35; text-align: center; }\n.rf-product.rf-electronics .rf-lightbox-close { position: absolute; z-index: 2; top: .45rem; right: .6rem; width: 2.2rem; height: 2.2rem; padding: 0; color: #082729; background: var(--el-trace); border: 0; border-radius: 999px; font: 800 1.75rem\/1 sans-serif; cursor: pointer; }\n.rf-product.rf-electronics .rf-lightbox-close:hover,\n.rf-product.rf-electronics .rf-lightbox-close:focus-visible { background: #fff; outline: 3px solid var(--el-copper); outline-offset: 2px; }\n\n.rf-product.rf-electronics .rf-button { display: inline-block; color: #082729 !important; background: var(--el-trace); border: 1px solid var(--el-trace); border-radius: 7px; padding: .72em 1em; font-weight: 800; line-height: 1.25; text-align: center; text-decoration: none !important; }\n.rf-product.rf-electronics .newsletter-cta { position: relative; overflow: hidden; color: #fff; background: linear-gradient(135deg,var(--el-board-dark),var(--el-board)); border-radius: 12px; padding: 1.3em 1.4em; margin: 1.8em 0; }\n.rf-product.rf-electronics .newsletter-cta::after { content: \"PCB\"; position: absolute; right: .1em; bottom: -.32em; color: rgba(255,255,255,.055); font-size: 7.5em; font-weight: 850; line-height: 1; }\n.rf-product.rf-electronics .newsletter-cta h3,\n.rf-product.rf-electronics .newsletter-cta p,\n.rf-product.rf-electronics .newsletter-cta a { position: relative; z-index: 1; }\n.rf-product.rf-electronics .newsletter-cta h3 { color: #fff !important; margin: 0 0 .45em !important; }\n.rf-product.rf-electronics .newsletter-cta p { max-width: 760px; color: rgba(255,255,255,.92); }\n\n.rf-product.rf-electronics .mini-faq { background: var(--el-panel); border: 1px solid var(--el-line); border-top: 5px solid var(--el-trace); border-radius: 9px; padding: 1em 1.1em; margin-top: 1.8em; }\n.rf-product.rf-electronics .mini-faq h3 { margin-top: 0 !important; }\n.rf-product.rf-electronics .mini-faq ul { list-style: none; padding-left: 0 !important; margin: 0 !important; }\n.rf-product.rf-electronics .mini-faq li { margin-bottom: .78em !important; }\n.rf-product.rf-electronics .mini-faq li:last-child { margin-bottom: 0 !important; }\n.rf-product.rf-electronics .mini-faq li b { color: var(--el-board); }\n\n@media (max-width: 900px) {\n  .rf-product.rf-electronics .feature-grid { grid-template-columns: 1fr; }\n  .rf-product.rf-electronics .signal-path { grid-template-columns: repeat(2,minmax(0,1fr)); }\n  .rf-product.rf-electronics .path-node:nth-child(2)::after { display: none; }\n}\n@media (max-width: 700px) {\n  .rf-product.rf-electronics .service-grid,\n  .rf-product.rf-electronics .package-grid,\n  .rf-product.rf-electronics .doc-grid,\n  .rf-product.rf-electronics .photo-grid,\n  .rf-product.rf-electronics .signal-path { grid-template-columns: 1fr; }\n  .rf-product.rf-electronics .path-node { min-height: 0; }\n  .rf-product.rf-electronics .path-node:not(:last-child)::after { content: \"↓\"; right: 50%; top: auto; bottom: -.82em; transform: translateX(50%); }\n  .rf-product.rf-electronics .path-node:nth-child(2)::after { display: block; }\n  .rf-product.rf-electronics .table-wrap table { min-width: 680px; }\n  .rf-product.rf-electronics .rf-button { width: 100%; }\n  .rf-product.rf-electronics .rf-image-lightbox { width: 98vw; height: 92vh; padding: 2.7rem .5rem .7rem; border-radius: 8px; }\n  .rf-product.rf-electronics .rf-zoom-label { font-size: .84em; }\n}\n\n@media (prefers-reduced-motion: reduce) {\n  .rf-product.rf-electronics .rf-measurement-zoom img { transition: none; }\n}\n\n.rf-product.rf-electronics.rf-electronics-splitter {\n  --el-ink: #20272c;\n  --el-muted: #65757d;\n  --el-panel: #f5f8fa;\n  --el-line: #d5e0e6;\n  --el-board: #174a63;\n  --el-board-dark: #102b3c;\n  --el-trace: #e9aa38;\n  --el-copper: #e9aa38;\n  --el-copper-soft: #fff9ec;\n  --el-blue: #174a63;\n}\n.rf-product.rf-electronics.rf-electronics-splitter .product-hero {\n  background: linear-gradient(135deg, #102b3c 0%, #174a63 70%, #1d6179 100%);\n  border-color: #174a63;\n  box-shadow: 0 16px 36px rgba(16,43,60,.2);\n}\n.rf-product.rf-electronics.rf-electronics-splitter .product-hero::before {\n  content: none;\n}\n.rf-product.rf-electronics.rf-electronics-splitter .product-hero::after {\n  content: \"1 : 4\";\n}\n.rf-product.rf-electronics.rf-electronics-splitter .product-eyebrow {\n  color: #182c37;\n}\n.rf-product.rf-electronics.rf-electronics-splitter .product-tags span {\n  border-color: rgba(255,255,255,.36);\n  background: rgba(16,43,60,.18);\n}\n.rf-product.rf-electronics.rf-electronics-splitter .newsletter-cta::after {\n  content: \"RF\";\n}\n.rf-product.rf-electronics.rf-electronics-splitter .table-wrap {\n  max-width: 100%;\n  overflow-x: auto;\n}\n.rf-product.rf-electronics.rf-electronics-splitter table {\n  width: 100%;\n  min-width: 530px;\n}\n.rf-product.rf-electronics.rf-electronics-splitter .spec-note {\n  color: #52646d;\n  font-size: .92em;\n  border-left: 3px solid #e9aa38;\n  padding: .2em 0 .2em .9em;\n}\n@media print {\n  .rf-product.rf-electronics.rf-electronics-splitter .product-hero {\n    background: #fff;\n    color: #20272c;\n    border: 1px solid #b7c7d0;\n    box-shadow: none;\n  }\n  .rf-product.rf-electronics.rf-electronics-splitter .product-hero h2,\n  .rf-product.rf-electronics.rf-electronics-splitter .product-hero p,\n  .rf-product.rf-electronics.rf-electronics-splitter .product-tags span {\n    color: #20272c !important;\n  }\n  .rf-product.rf-electronics.rf-electronics-splitter .product-hero::after {\n    content: none;\n  }\n  .rf-product.rf-electronics.rf-electronics-splitter table {\n    min-width: 0;\n  }\n}\n\u003c\/style\u003e\n\n\u003cdiv class=\"rf-product rf-electronics rf-electronics-splitter\"\u003e\n  \u003cdiv class=\"product-hero\"\u003e\n    \u003cspan class=\"product-eyebrow\"\u003eRF.Guru · Passive RF distribution\u003c\/span\u003e\n    \u003ch2\u003eOne RF signal. Four connections.\u003c\/h2\u003e\n    \u003cp\u003eShare a receiving antenna or a low-level test signal between four 50 Ω paths. This compact, enclosed splitter \/ combiner covers 1–500 MHz and uses Würth SMA connectors, with one common port marked IN and four branch ports marked OUT.\u003c\/p\u003e\n    \u003cdiv class=\"product-tags\"\u003e\n\u003cspan\u003e1–500 MHz\u003c\/span\u003e\u003cspan\u003e50 Ω\u003c\/span\u003e\u003cspan\u003e4-way · nominal 0°\u003c\/span\u003e\u003cspan\u003eWürth SMA\u003c\/span\u003e\u003cspan\u003eNo power supply\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"service-grid\"\u003e\n    \u003cdiv class=\"service-card\"\u003e\n\u003cspan class=\"card-kicker\"\u003eReceive distribution\u003c\/span\u003e\u003cb\u003eFeed several receivers from one source\u003c\/b\u003e\u003cp\u003eConnect the antenna or signal source to IN and the receivers to OUT. The isolated branches reduce interaction between connected loads compared with simply joining coax cables together.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"service-card\"\u003e\n\u003cspan class=\"card-kicker\"\u003eBench use\u003c\/span\u003e\u003cb\u003eSplit or combine low-level signals\u003c\/b\u003e\u003cp\u003eThe passive network also works in reverse for combining signals. Its four paths have nominally equal phase; it does not introduce the 90° phase shift of a quadrature hybrid.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eUnderstand the signal level\u003c\/h3\u003e\n  \u003cp\u003eDividing power equally between four outputs gives each branch one quarter of the input power: approximately \u003cstrong\u003e6 dB below the input, before additional loss\u003c\/strong\u003e. The excess insertion loss in the table is added to that division loss. For example, a typical 0.5 dB excess loss means approximately 6.5 dB total input-to-output loss.\u003c\/p\u003e\n  \u003cp\u003eFor reception, allow for this loss when assessing the noise floor and available signal level. The splitter distributes the signal; it does not amplify it.\u003c\/p\u003e\n\n  \u003ch3\u003eConnect it correctly\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eUse 50 Ω coaxial connections and SMA male plugs to mate with the five SMA female ports.\u003c\/li\u003e\n    \u003cli\u003eFit a \u003cstrong\u003e50 Ω termination to every unused branch\u003c\/strong\u003e to maintain the intended matching and isolation. Using fewer receivers does not turn it into a lower-loss two-way splitter.\u003c\/li\u003e\n    \u003cli\u003eUse an appropriate external power-injection arrangement for an active antenna. DC pass-through and bias-tee operation are not specified for this unit.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eRF specifications\u003c\/h3\u003e\n  \u003cdiv class=\"table-wrap\"\u003e\u003ctable\u003e\n    \u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSplitter-core parameter\u003c\/th\u003e\n\u003cth scope=\"col\"\u003e1–10 MHz\u003c\/th\u003e\n\u003cth scope=\"col\"\u003e10–250 MHz\u003c\/th\u003e\n\u003cth scope=\"col\"\u003e250–500 MHz\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003cth scope=\"row\"\u003eExcess insertion loss, typical \/ maximum\u003c\/th\u003e\n\u003ctd\u003e0.4 \/ 1.2 dB\u003c\/td\u003e\n\u003ctd\u003e0.5 \/ 1.2 dB\u003c\/td\u003e\n\u003ctd\u003e0.8 \/ 1.8 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth scope=\"row\"\u003eOutput isolation, typical \/ minimum\u003c\/th\u003e\n\u003ctd\u003e32 \/ 18 dB\u003c\/td\u003e\n\u003ctd\u003e30 \/ 20 dB\u003c\/td\u003e\n\u003ctd\u003e25 \/ 18 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth scope=\"row\"\u003eAmplitude imbalance, maximum\u003c\/th\u003e\n\u003ctd\u003e0.4 dB\u003c\/td\u003e\n\u003ctd\u003e0.5 dB\u003c\/td\u003e\n\u003ctd\u003e0.8 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003cth scope=\"row\"\u003ePhase imbalance, maximum\u003c\/th\u003e\n\u003ctd\u003e2°\u003c\/td\u003e\n\u003ctd\u003e5°\u003c\/td\u003e\n\u003ctd\u003e7°\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\u003c\/div\u003e\n  \u003cp class=\"spec-note\"\u003eThese RF figures are the splitter-core specifications, not measurements of the complete RF.Guru assembly. Connectors, PCB layout and installation contribute to complete-unit performance. Excess insertion loss excludes the nominal 6 dB four-way division loss.\u003c\/p\u003e\n\n  \u003ch3\u003ePower limits and combining\u003c\/h3\u003e\n  \u003cp\u003eThis unit is intended for \u003cstrong\u003ereceiving and low-level signal work\u003c\/strong\u003e. The splitter core has an absolute maximum common-port input of 0.5 W (+27 dBm) in splitter operation with matched branch loads, and a separate absolute maximum internal dissipation of 0.25 W. These are component absolute-maximum limits, not recommended operating levels or a qualified transmitter rating for this assembly.\u003c\/p\u003e\n  \u003cp\u003eWhen combining, the relative phase and amplitude of the input signals determine how much power is dissipated internally. Unequal, unrelated or opposing signals can heat the isolation network. \u003cstrong\u003eThe 0.5 W splitter limit is not a 0.5 W rating for each combiner input.\u003c\/strong\u003e\u003c\/p\u003e\n\n  \u003cdiv class=\"doc-grid\"\u003e\u003cdiv class=\"doc-card\"\u003e\n\u003cspan class=\"card-kicker\"\u003eProduct datasheet · PDF\u003c\/span\u003e\u003cb\u003eSpecifications and connection guide\u003c\/b\u003e\u003cp\u003eDownload the two-page RF.Guru datasheet with the frequency-band specifications, a connection diagram and practical operating notes.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0605\/4402\/4764\/files\/rfguru-splitter-1-500mhz-pdf-f38c870f85f1.pdf?v=1793630774\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDownload the product datasheet (PDF)\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\n  \u003cdiv class=\"newsletter-cta\" data-rf-standard-cta=\"mailing-list\"\u003e\n\u003ch3\u003e\u003cb\u003eFollow RF.Guru updates\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eGet new product notes and engineering articles by email.\u003c\/p\u003e\n\u003ca class=\"rf-button\" href=\"https:\/\/listmonk.rf.guru\/subscription\/form\"\u003eJoin the notification list →\u003c\/a\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"mini-faq\"\u003e\n\u003ch3\u003e\u003cb\u003eQuick answers\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cb\u003eDoes it need a power supply?\u003c\/b\u003e No. This is a passive RF network.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003eCan I leave unused outputs open?\u003c\/b\u003e Fit 50 Ω terminations to unused branches for the intended matching and isolation.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003eDoes it cover HF?\u003c\/b\u003e Yes. The specified range is 1–500 MHz, including the amateur HF bands, 6 m, 2 m and 70 cm.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003eCan I connect transmitter outputs?\u003c\/b\u003e This listing is for reception and low-level signal work. It is not a transmitter power combiner.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n","brand":"RF.Guru","offers":[{"title":"Default Title","offer_id":56444341977430,"sku":"RF-SPLIT4-SMA-1-500","price":99.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0605\/4402\/4764\/files\/rfguru-splitter-1-500mhz-main-b128a8b8fd25_6f7675c0-36ac-40a8-8f91-83a16c0a9382.png?v=1793630904","url":"https:\/\/shop.rf.guru\/products\/4-way-sma-splitter-combiner-1-500mhz","provider":"RF Guru","version":"1.0","type":"link"}