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Multi-Operator DAS: Band Combination Traps That Create Fatal Intermodulation
Oct , 27 2026
The most dangerous scenario in a multi-operator DAS is rarely caused by choosing a component with a poor PIM specification. The real problem often lies in the band plan itself — the frequency relationship between two downlink bands mathematically places intermodulation products inside another operator's uplink receive band. No matter how good the components are, the products land where they land. ...
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VSWR vs Return Loss vs Isolation vs Directivity: How These Four RF Parameters Connect
Nov , 03 2026
A conversation that happens on site more often than it should "What's the isolation on this coupler?" "22dB." "And directivity?" "Not listed. It only says isolation." "So can we use this part or not?" The conversation stalls here. 22dB isolation doesn't sound bad. But without directivity, you don't know whether that 22dB comes from "the forward coupled port and the reverse isolation port are well ...
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