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Engineering notes from the 123eWireless floor. Connector trade-offs, cable attenuation curves, PIM-test realities, and the small mechanical details that decide whether a build passes audit. Written by the people who solder, sweep, and ship.

RF Connectors

SMA vs QMA

The same but different.

Two connectors, one electrical envelope, two mechanical philosophies. When QMA earns its place, when SMA still wins, and what the PN suffix tells you at a glance.

May 2, 2026 · 6 min read · Read paper →
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