Tech Briefs

Tech Briefs

When to use 5W BDA vs. 2W Fiber Remote Units

With Comba Telecom’s 5W CriticalPoint Public Safety BDA now available, we decided to take a look at the use cases...

Using Filters on a Public Safety BDA to Ensure Optimal Performance

When you plan your Public Safety design with a BDA or Fiber DAS, an RF environment study or RF Site...

Annual ERRCS Maintenance Items

As a Public Safety OEM, Comba is often asked: “What actions should be performed for an annual inspection, or PMI...

When, Why and How to use a Bias-T on Comba Public Safety BDAs

Comba Public Safety BDAs will require a Bias-T Kit for some applications. This tech brief will explain why the Bias-T...

Best Practices for Public Safety and Cellular Analog Fiber DAS Deployment – Fiber Plant Installation

Introduction:The purpose of this document is to highlight the proper installation and end-to-end testing of the fiber plant (aka, fiber...

UNDERSTANDING DRY CONTACT TERMINOLOGY AND HOW IT APPLIES WITH RESPECT TO THE BI-DIRECTIONAL AMPLIFIER (BDA), BATTERY BACKUP UNIT (BBU) AND FIRE ALARM CONTROL PANEL (FACP) EQUIPMENT

Understanding Dry Contact Terminology and How It Applies with Respect to the Bi-Directional Amplifier (BDA), Battery Backup Unit (BBU) and...

DAS DESIGNING TO ELIMINATE THE NEAR-FAR EFFECT

“Radio Test 1, 2, 3…”This is a common phrase we hear as the AHJ walks through the building during acceptance...

Fiber the Right Way

Fiber, the core infrastructure of any long-distance communication for modern technology. As such, if there are any...

HOW TO PERFORM A MANUAL ISOLATION TEST ON A FIBER DAS

Introduction: Conducting the isolation test is one of the most important steps when commissioning a BDA or Fiber DAS solution. If...

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