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About EMR

Since 1980, EMR Corp has provided design, supply and implementation of complete R.F. communication systems.

In Building Solutions

BDA/UDA Systems, Battery Backup, Remote Power Monitoring. NFPA Compliant with optional upgrades.

SYS Combiners

Easy to deploy hybrid combiner technology, proximity adjacent channel combining, close spacing.

Ferrite Combiners

Our square cavities and combining configurations allow us to provide compact, space saving solutions!

Receiver Multicouplers

Standard, Tower Top, Compact designs, save space without sacrificing perforance!

Antenna Duplexers

Base Station Pass-Notch, Band Pass, Mobile, Iso-Plexers, RFS Series

Intermod Control

Isolators, Circulators, IM Panels

Cavity Resonators

High Q, Band Pass, Pass Notch, Iso-Cav, Crystal-Cav

RF Peripherals

Power products, RF Filters, Mounting Hardware


Dipole, Colinear, Quarter Wave, Yagi, In-Building DAS

News & Events

Enhancing Signal Integrity: Pass Notch Duplexers Demystified

Enhancing Signal Integrity: Pass Notch Duplexers Demystified Pass notch duplexers play a critical role in maintaining signal integrity within radio systems. Their primary function is to provide sufficient rejection of transmitter wideband noise

Tessco DAS Public Safety Showcase

A special thank you to Tessco for a fantastic Public Safety DAS Solution Showcase! It was a privilege to engage with industry leaders and explore cutting-edge solutions. Looking forward to future collaborations! EMR Corp has been manufacturing ...

Which Antenna Duplexer is right for you?

Which Antenna Duplexer is right for you? There are several factors involved in choosing the right duplexer for your application.  Most consider only TX power and frequency offset when deciding whether a duplexer fits their application.  While ...