Use Case: Multiboost saves the day in Hospital de Blanes

Location: Hospital Comarcal de la Selva (Hospital de Blanes), Blanes, Spain

Challenge: Unstable indoor mobile signal across multiple network operators

The Problem

Hospital de Blanes (Hospital Comarcal de la Selva) in Spain faced significant indoor mobile reception issues caused by large input signal imbalances between Movistar and other mobile network operators (Vodafone and Orange). The previous system was unable to handle these disparities, resulting in saturated signal levels and unequal MNO signal balancing.

As a result, both voice and data services were unreliable throughout the hospital. This affected critical areas including emergency units, surgical suites, and outpatient zones, which collectively process over 60,000 consultations and 50,000 emergency cases annually.

The Multiboost Solution

Multiboost deployed a PRO Triple mobile repeater system. The installation was carefully tailored to ensure reliable indoor coverage for 2G, 3G, 4G, and 5G services across all three major Spanish operators.

Installation details:

• Repeater model: Multiboost PRO Triple

• Frequencies: 800 / 900 / 1800 MHz

• Operators supported: Movistar, Orange, Vodafone

• Voice and data coverage: 2G + 3G + 4G + 5G

• Indoor antennas: 8 ultra-slim omnidirectional ceiling antennas

• Outdoor antenna: 14 dBi sectorial (700–2600 MHz, 35° H/V)

• Line amplifiers: 2

Results

The installation significantly improved indoor coverage for all operators throughout critical hospital zones, enabling seamless communication for staff and patients alike.

The Multiboost PRO Triple demonstrated its ability to maintain stable signal performance despite extreme input power differences between operators — a challenge that analog repeaters can't handle.

The following real-time monitoring screenshots (from Multibooost Cloud) illustrate how the Multiboost system effectively handles these variations, ensuring consistent coverage across all mobile networks.

The first chart shows Vodafone (Band 3 - 1835.1 MHz) with an average input power around -72 dBm and a consistent gain of 67 dB.

In contrast, the second chart shows Movistar (Band 8 - 942.5 MHz) with an input power of -3 dBm, which is exceptionally high and would typically saturate most commercial repeaters.

The difference of nearly 70 dB between Vodafone and Movistar input levels would overwhelm conventional systems. However, the Multiboost repeater managed these extremes flawlessly, delivering stable and balanced coverage across all areas of the hospital.

This screenshot highlights how Multiboost effectively handles large input power differences across mobile operators, a key weakness of the previously installed system. Although our repeater was operating properly, we decided to also install a 10 dB attenuator to improve performance.

• On Band 8 (900 MHz) and Band 20 (800 MHz), Movistar signals are extremely strong (e.g. -14 dBm), while Vodafone and Orange are much weaker (ranging from -61 to -54 dBm).

• In common systems that apply one gain setting per band, the strongest signal limits the available gain, which means weaker operator signals (those whose base stations are farther from the building) don't get enough amplification.

• Multiboost compensates for these imbalances, maintaining sufficient gain and output power for all operators, even with input differences of over 40 dB, ensuring reliable, balanced indoor coverage.

Conclusion

This usecase proves the Multiboost system’s advanced signal handling and equalization capabilities, even in high-demand, multi-operator environments like Hospital de Blanes.

Encouraged by the results, the hospital is planning a project expansion to include additional line amplifiers and interior antennas.

Interested in using Multiboost to solve signal issues like at Hospital de Blanes?

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