The CVL is a single-carrier-band amplifier tuned to LTE Band 7 — the 2600 MHz FDD band EE and Vodafone use for extra 4G capacity in towns and cities. Uplink runs 2500–2570 MHz and downlink 2620–2690 MHz. A signal booster can only amplify the frequency it is built for, so the CVL strengthens Band 7 4G data and VoLTE only. It deliberately does not touch Band 3 (1800 MHz), Band 20 (800 MHz), Band 38, 3G or 5G. If your phone only ever camps on Band 20 in a deep-rural spot, the CVC is the right booster instead.

Yes — but only if your car struggles because of weak Band 7 signal, not because of a busy mast. The CVL takes the weak Band 7 4G picked up by the 5 dBi roof aerial and boosts it by up to ≥45 dB uplink / ≥40 dB downlink to a full-strength signal inside the cabin. That usually means faster page loads, smoother sat-nav, reliable WhatsApp and better video calls where your phone alone showed 1–2 bars. If your local cell is congested at rush hour, the booster cannot add more network capacity — it improves the radio path, not the mast.

The CVL boosts the Band 7 radio that carries VoLTE, so HD voice calls on EE and Vodafone become far more reliable inside the vehicle. There is one condition: both your phone and your mobile plan must support VoLTE (4G Calling). If your handset is VoLTE-capable and your tariff has 4G Calling enabled, the cleaner Band 7 signal means fewer dropped calls and clearer audio. If your phone falls back to 2G/3G for calls and your area has no 2G/3G, the CVL will not help the voice leg — confirm VoLTE is switched on in your phone settings first.

The CVL is the top of the Boost4U in-vehicle range. The premium buys you the only Band 7 (2600 MHz) 4G LTE + VoLTE unit, a 5 dBi magnetic omni roof aerial with a 3-magnet base, a 3 dBi whip indoor antenna, unlimited simultaneous users, and 12V vehicle power. The CVC at £139.99 is a Band 20 (800 MHz) O2/Vodafone 4G unit tuned for deep-rural reach. Choose the CVL if you are an EE/Vodafone customer whose fast 4G sits on Band 7; choose the CVC if you need long-range rural 4G on the low-frequency Band 20.

You need at least 1 bar of outdoor Band 7 (2600 MHz) 4G at the point where the magnetic roof aerial sits. The CVL amplifies that weak donor signal up to ≥45 dB / ≥40 dB into a strong cabin signal. If your phone shows zero bars and runs emergency-only outside, no Ofcom-legal booster in this price range can create signal from nothing. We recommend checking Band 7 signal in your phone's field-test / engineering mode at the roof position before you order — this is the single most important pre-purchase check.

The CVL supports unlimited simultaneous users and devices. That is far beyond a normal family car (four phones + a tablet + a sat-nav) and easily covers a taxi, a minibus or a whole works van. Each device still uses its own SIM and data plan — the CVL is not a router and does not create Wi-Fi — but every handset and tablet in the boosted cabin area benefits from the cleaner Band 7 4G at the same time. This unlimited-user rating is a step up from the 10-user CVW.

The standard 5 m coax is fine for a saloon, SUV, van or small motorhome where the roof aerial sits close to the dash. For a long HGV cab, a high-top panel van or a large motorhome where the roof aerial is far from the cabin unit, 5 m can feel tight. We offer an optional fishtail outdoor aerial on a 3 m coax (3 magnets) — note it is shorter, so for the longest runs plan the booster position near the aerial entry point. The cable routes through the door seal or window gap; no drilling required.

No. The CVL boosts Band 7 (2600 MHz) 4G LTE + VoLTE only. It does NOT boost 5G NR, it does NOT boost 3G UMTS, and it does NOT boost other 4G bands — specifically not Band 3 (1800 MHz), Band 20 (800 MHz) or Band 38. This is by design: it is a focused Band 7 amplifier. If your phone shows 5G and you want to improve 5G, no unit in this range does that; if your weak signal is on Band 20 rural 800 MHz, look at the CVC instead.

Yes, with the optional 220V AC mains adapter. The CVL ships with the 12V car cigarette-lighter adapter; for a static caravan or campsite on hook-up you order the 220V AC adapter separately and power the booster from the EHU. The unit itself is identical whether run from the 12V car socket or the 220V adapter. This is useful for seasonal-pitch owners who want cabin / awning 4G and VoLTE without the engine running.

Yes. The CVL is Ofcom licence-exempt, UKCA and CE certified, and complies with UK mobile signal booster regulations. As long as you use it as supplied — ≥45 dB uplink / ≥40 dB downlink gain, 10 dBm output, Band 7 only, on a vehicle or caravan — you do not need to notify Ofcom or pay for a licence. Do not modify the unit, swap to a higher-gain external aerial, or fit it as a permanent fixed-home system; that would void the compliance and the warranty.