When modern parking systems rely on mobile networks to process payments and transmit data, even a small signal problem can cause major disruption. For one local authority, an entire town centre car park was affected when a new contactless-enabled parking meter stopped communicating altogether.
Mobile Signal Solutions was called in to diagnose and resolve the problem.
The parking meter used an integrated modem with a SIM card to handle card payments and send usage information back to the council’s management platform. Although mobile coverage across the car park was strong, the meter itself sat inside a solid metal enclosure. This housing effectively trapped the modem inside what engineers call a “signal box”, preventing any mobile network access.
The result was payment failures, frustrated drivers, lost revenue, and a growing list of complaints.
Mobile Signal Solutions carried out a detailed on-site survey to determine:
The survey confirmed what was suspected: signal was present outside, but the enclosure blocked it entirely. The task, then, was to bring the outdoor signal safely and efficiently into the cabinet.
The team designed and installed a simple Passive Distributed Antenna System (Passive DAS). This low-cost, maintenance-free approach used purely passive components to channel signal from outside the metal casing directly into the modem.
Outdoor Donor Antenna
A weatherproof, high-gain antenna was mounted on the exterior of the meter, positioned with clear line-of-sight to nearby mobile base stations.
Low-Loss Coaxial Cable
An N-type terminated coaxial cable was routed neatly into the enclosure, ensuring minimal signal loss.
Connection to Modem
The coax was adapted to fit the modem’s input using an SMA connector, completing a secure and efficient signal path.
No amplifiers or powered devices were required — the system relied entirely on passive signal transfer.
| Metric | Before Installation | After Installation |
| Mobile Signal Strength | None detected | Stable multi-network access |
| Payment Success Rate | Frequent failures | Smooth, consistent card transactions |
| Customer Experience | Complaints and frustrations | Fast and seamless payments |
| Maintenance | Manual resets required | None needed |
Even in areas with good outdoor coverage, metal enclosures or dense materials can isolate equipment from the available signal. In such cases, a Passive DAS offers a highly effective and compliant solution — delivering immediate improvements with no active components or complex infrastructure.
MSS Mobile Technology provided the full service: survey, design, installation, and testing — ensuring the local authority’s parking system was back online quickly and securely.
For councils and commercial operators managing smart infrastructure, reliable mobile signal is essential. Whether it’s parking meters, ticketing systems, or remote monitoring equipment, Mobile Signal Solutions can help restore performance with engineered, compliant installations that simply work.
Speak to one of our engineers today and get a free desktop quotation.
Mobile Signal Solutions (MSS) is a UK-based installer of Ofcom Compliant mobile telecom equipment used for vastly improving mobile signal levels internally for all commercial and domestic clients across the UK and Europe. We use network grade equipment boosting signals for Vodafone, o2, 3 and EE.
Address: Unit 211, Waterhouse Business Centre, 2 Cromar Way, Chelmsford, CM1 2QE, United Kingdom
Email: [email protected]
Phone: +44 1442 780741
