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DAS Precision Variable Step Attenuator Trays

Modular, Configurable, Low PIM, Solutions to Improve Wireless Network Capacity and Performance

API Technologies’ line of low PIM precision variable step attenuator trays are available in standard RF path configurations of 3, 4, 5, or 6 input/output ports, with custom configurations available to accommodate up to 12 ports.

Our DAS interface attenuator trays are designed to allow for maximum reliability, with PIM ratings as low as -160dBc.

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DAS Interface Trays
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Call us at: +1 (888) 553-7531 for US Sales or contact an engineer to discuss your DAS interface project today!

DAS Interface Products

DAS Precision Variable Step Attenuator Trays









DAS-1721-4002 - N-F N-F 20 Y Y AWS/PCS
DAS-7025-4004 - N-F N-F N/A Y Y 3 Port Rx
DAS-1721-4008 - N-F N-F 20 Y N AWS
DAS-1719-4010 - N-F N-F 20 N Y 5 Port

Configurable DAS Solutions

Precision Step Variable Step Attenuating Trays

API Technologies' attenuator trays for DAS systems are optimal for applications where the DAS head end requires one simplex transmit and one simplex receive per sector, per technology. Our solutions allow you to attenuate two Rx paths independently for maximum flexibility.

Our line of low PIM precision variable step attenuator trays is available in standard RF path configurations of 3, 4, 5, or 6 input/output ports, with custom configurations available to accommodate up to 12 ports.

All components in the unit, including the duplexer and cable attenuator/loads handling power have been upgraded to low PIM.

Features & Specifications

  • DAS solutions configured to meet user requirements
  • Fully integrated solutions available: from small site to custom DAS conditioning trays
  • Site- specific requirements and custom configurations available
  • 100% compliant with neutral host requirements
  • Additional attenuation can be added to the output to satisfy specific vendor requirements

Full Line of DAS Solutions for Increased Network Performance

Neutral Host Venue, Outdoor, and In-Building Solutions

API Technologies offers a complete line of standard and user-configurable DAS and low PIM filter products for today’s growing DAS infrastructure. These Distributed Antenna Systems (DAS) deliver un-compromised performance with a modular design that allows you to deploy only what you need today, and inexpensively add on or upgrade as your needs require.

With the ever-increasing user demands on carriers for coverage and capacity, distributed antenna systems (DAS) have become a key element of carrier networks where allowing additional wireless coverage without the cost of expensive infrastructure is desired.

Applications & Benefits

  • Stadiums/Sports Venues
  • Airport Terminals
  • Multi-Tenant High Rise Office Buildings
  • Hotels and Casinos
  • College Campuses and Universities
  • Convention Centers
  • Shopping Malls
  • Auditoriums and Classrooms
  • Manufacturing Facilities and Warehouses
  • Hospitals/Health Care Facilities
  • Local and Federal Government Buildings
  • Improves wireless network access for your venue’s visitors and staff, regardless of which
  • Boost signal strength to a wide variety of carrier networks
  • Increases network capacity for voice and data users
  • Support in-building public safety and first-responder emergency communications
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DAS Configurations

API Technologies offers four different DAS configurations, or formats, which can be balanced to provide the optimum solution for any given application.

Single-input-single-output (SISO):

Single input signal and a single output signal.

Single-input-multiple-output (SIMO):

Single input signal (the transmitter has a single antenna) and more than one output signal.

Multiple-input- single -output (MISO):

Multiple input signals and a single output signal (the receiver has a single antenna).

Multiple-input-multiple-output (MIMO):

Multiple input and output signals, and form the most general of the four classes. They have dual capability of combining the SIMO and MISO technologies.