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How much signal does a two-way radio lose passing through each reinforced-concrete floor slab or basement wall?
How much signal a two-way radio loses through each reinforced-concrete floor slab or basement wall — real dB figures and when a DAS is needed.
info466216
3 days ago5 min read
What does it cost to fix radio dead zones in a hotel with a BDA or DAS?
What it costs to fix walkie-talkie dead zones in a Singapore hotel — indicative BDA/DAS pricing, the cost drivers, and IMDA licensing, from an RF engineer.
info466216
5 days ago4 min read
Is Singapore Adopting a US-Style Emergency Responder Radio Coverage Code (IFC 510 / -95 dBm), or Is It Still COPIF Plus the Fire Code?
Singapore does not use the US IFC 510 -95 dBm code. Here is how COPIF and the SCDF Fire Code govern in-building radio coverage.
info466216
Aug 44 min read
Leaky Feeder or Discrete Antennas on a DAS for a Multi-Storey Car Park or Road Tunnel?
Leaky feeder or discrete-antenna DAS for a multi-storey car park or road tunnel? An RF engineer compares coverage, cost and where each wins in Singapore.
info466216
Aug 44 min read
Why Don't Our Radios Work in the Basement Carpark and Stairwells, and How Do We Fix the Dead Zones?
Why two-way radios die in basement carparks and stairwells, how much signal reinforced concrete steals, and the repeater/DAS fix that restores coverage.
info466216
Aug 35 min read
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