{"product_id":"johansson-7722l-vhf-uhf-line-amplifier-lte-4g","title":"Johansson 7722L VHF-UHF Line Amplifier – LTE\/4G Filter, 2 Outputs \u0026 Adjustable Gain","description":"\u003cp\u003eThe Johansson 7722L is a mains-powered line amplifier designed for terrestrial TV distribution installations. It accepts a single dual-band input covering VHF (40–320 MHz) and UHF (470–790 MHz) simultaneously, and splits the signal to two outputs. LTE\/4G filtering is built in to suppress interference from mobile network frequencies.\u003c\/p\u003e\u003cp\u003eVHF gain is adjustable from 15 to 30 dB and UHF gain from 18 to 28 dB, each independently controlled. Remote power feed (24V \/ 55mA) is switchable, allowing the amplifier to supply passive head-end or mast-mounted components. The unit is mountable on a wall or on a DIN rail.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSingle dual-band input: 40–320 MHz (VHF) + 470–790 MHz (UHF)\u003c\/li\u003e\n\u003cli\u003e2 outputs\u003c\/li\u003e\n\u003cli\u003eAdjustable VHF gain: 15–30 dB\u003c\/li\u003e\n\u003cli\u003eAdjustable UHF gain: 18–28 dB\u003c\/li\u003e\n\u003cli\u003eLTE\/4G filtering built in\u003c\/li\u003e\n\u003cli\u003eSwitchable remote power: 24V \/ 55mA\u003c\/li\u003e\n\u003cli\u003ePower LED indicator\u003c\/li\u003e\n\u003cli\u003eWall or DIN rail mounting\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eProduct Benefits\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eIndependent VHF and UHF gain adjustment allows the signal level on each band to be optimised for the specific installation without affecting the other band\u003c\/li\u003e\n\u003cli\u003eA maximum output level of 107 dBµV supports long cable runs and multi-outlet distributions before signal level drops to unusable levels\u003c\/li\u003e\n\u003cli\u003eThe built-in LTE\/4G filter prevents mobile network interference from degrading UHF reception — particularly important in areas with dense 4G coverage\u003c\/li\u003e\n\u003cli\u003eSwitchable remote power enables the amplifier to feed a mast LNB or antenna pre-amplifier directly, eliminating the need for a separate power inserter\u003c\/li\u003e\n\u003cli\u003eA noise figure of 3.0 dB typical ensures minimal signal degradation at the input stage\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e 7722L\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Frequency Range:\u003c\/strong\u003e 40–320 MHz + 470–790 MHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Inputs:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Outputs:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable VHF Gain:\u003c\/strong\u003e 15–30 dB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable UHF Gain:\u003c\/strong\u003e 18–28 dB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNoise Figure:\u003c\/strong\u003e 3.0 dB typ.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Output Level:\u003c\/strong\u003e 107 dBµV\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReturn Loss (input\/output):\u003c\/strong\u003e 10 dB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIsolation Between Outputs:\u003c\/strong\u003e 15 dB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemote Power:\u003c\/strong\u003e 24V \/ 55mA (switchable)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMains Power:\u003c\/strong\u003e 230V~ \/ 6.9 VA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Wall or DIN rail\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eWhy You'll Love It\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eWall and DIN rail mounting compatibility means the amplifier fits into existing distribution boards and purpose-built enclosures without extra brackets\u003c\/li\u003e\n\u003cli\u003eThe LED power indicator gives immediate visual confirmation that the unit is energised and the remote power feed is active\u003c\/li\u003e\n\u003cli\u003eBoth VHF and UHF are handled by a single unit, avoiding the need for separate band amplifiers and combiners in mixed-frequency installations\u003c\/li\u003e\n\u003cli\u003eThe package includes safety instructions, covering the documentation requirements for professional installation compliance\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Johansson","offers":[{"title":"Default Title","offer_id":56579871900030,"sku":"203214","price":33.0,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0961\/2250\/3550\/files\/15675337671038.webp?v=1779641608","url":"https:\/\/lynk.gr\/en-nz\/products\/johansson-7722l-vhf-uhf-line-amplifier-lte-4g","provider":"Lynk.gr","version":"1.0","type":"link"}