Featured Commercial Products

Radio Design Group is incredibly proud to partner with Radio Active Designs (RAD) in offering the exceptional UV-1G product line. With over 100 years combined experience in RF, RAD was founded with the focused goal to create the most spectrally efficient and reliable wireless intercom system available. The UV-1G delivers. For more information, including purchasing, see the featured products below, or contact RAD directly.

Radio Active Designs




Wireless Intercom System

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Circularly Polarized VHF Antenna

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Originally designed for use under FCC Part 74 for broadcast and entertainment applications, the UV-1G can operate as a Part 15 device for general intercom use as well. Using RDGI’s advanced ENB (enhanced narrowband) modulation format, the system occupies only a 25 kHz wide channel, while providing high quality, 8 kHz bandwidth audio to minimize user fatigue.

The system has superior range compared to other systems on the market, features two and four wire interfaces for each intercom channel. Highly ruggedized, the UV-1G allows use in a wide variety of environments, and the belt packs are suitable for outdoor use. It can be expanded to accommodate additional base stations and belt packs.

The CP-1V VHF antenna is a leap forward in RF technology. It occupies an exceptionally small footprint of 18 inches square, but performs more effectively than much larger competitors. It is a true circularly polarized antenna, and covers an astonishing bandwidth of 174-216 MHz; the entire VHF wireless microphone band!

In head-to-head comparison tests, the CP-1V performed noticeably better than a 6 dB gain log-periodic antenna, resulting in fewer dropouts, better overall signal to noise and greater overall range. It’s rugged construction makes it suitable for both indoor and outdoor use, and it handles enough power to make it practical for multi-transmitter VHF in-ear monitor systems.


Active Transmitter Antenna Combiner

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Active Transmitter Antenna Combiner

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The TX2-4U combiner splitter allows the user to combine two UHF wireless transmitters, such as those in the UV-1G, and split the combined signal into four output paths.  Each output is individually adjustable in power, up to a maximum of 250 mW.  A 1 mW “Fiber” level output is also available, allowing use with RF over fiber systems.

Low IM distortion and linear operation (a must for non-FM systems) make this combiner/splitter the most versatile unit available.

The TX-8U brings a new level of IM performance to combiner systems, using advanced technology not found in any other system. While IM products are still produced in any combined antenna system, they are at much lower levels with the TX-8U.

Eight RF inputs are combined with low IM levels into one antenna output.  Power levels of up to 250 mW per channel can be selected, and the unit is completely linear in operation, allowing use with the UV-1G enhanced narrowband intercom system.


Featured Government Products

Ruggedized Communications

Specialized Alerting System


RF Distribution Unit

RDGI offers customized equipment design and manufacturing for specialized communications systems, including alerting systems for difficult environments, as well as both portable and fixed equipment for defense applications.

  • EMP, including high-altitude EMP (HEMP) resistance
  • Severe jamming, both incidental and intentional interference
  • Low probability of intercept, encrypted systems
  • Very narrow, bandwidth-restricted voice systems
  • High noise-level tolerant systems
  • Ruggedized or waterproof systems

The RFDU-300 is a multipurpose RF distribution unit designed to interface between various platform antennas and receiving systems. Building on the foundation of its proven predecessors, the RFDU-300 provides the functions of commutation, test switching, test noise generation, RF notch filtering and RF matrix switching in a compact reliable package.

The RFDU-300 is notable for its advanced filter design. In DSP-based receiver systems, overload caused by signals higher than the dynamic range of the system causes overload or an increase in the apparent noise floor. Our proprietary band-reject filters provide a digitally controlled notch over multi-octave ranges that solves this problem. Frequencies range from a low of 10 kHz all the way up to 18 GHz. A big advantage is our ability to reject frequencies over a wide range without affecting the remaining bandpass, a feature unique to our systems.

The testing of complex multi-port RF systems can be challenging. RDGI met these challenges by developing a custom test system, “Medusa,” which solves test issues with a flexible, expandable architecture. Typically used to test RF distribution units (RFDUs), Medusa provides test switching under computer control for systems operating up to 18 GHz.


A Multi-Port RF Test System