Emerson-Rittenhouse RCM-4 intercom/radio

The Emerson‑Rittenhouse RCM‑4 is a two‑way industrial intercom/radio designed for plant communication between remote stations. Common failures include loss of audio due to blown speaker capacitors or degraded RF modules, power supply dropout from failing regulator ICs, and intermittent line‑of‑sight issues caused by damaged antenna connectors. First‑check diagnostics: verify 12 VDC input with a multimeter, inspect the main board for burn marks or swollen electrolytics, and test audio output on both master and slave units while monitoring the RF signal strength with an appropriate receiver.[oss-gpt-20b]

Need your Emerson-Rittenhouse repaired or tested?

We specialize in the repair and refurbishment of high-end industrial control electronics and power systems like this unit.

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