Ivan Elhart

Author's details

Name: Ivan Elhart
Date registered: July 26, 2011

Latest posts

  1. 2009 IEEE International Conference on Technologies for Homeland Security – HST 2009 — May 14, 2009
  2. The next step in sharing visual media – The new Micro Projector 3M MPro110 — April 17, 2009
  3. Radio Testing Lab — July 31, 2008
  4. Sony's MP3 dancing robot – Rolly — June 30, 2008
  5. Anything on Wheels – Forney Museum of Transportation — May 21, 2008

Most commented posts

  1. Software-Based APCO Project 25 Base Station — 1 comment

Author's posts listings

May
14

2009 IEEE International Conference on Technologies for Homeland Security – HST 2009

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On Monday, May 11, I was honored to present my work at a very prestigious IEEE conference on Homeland Security technologies, held in Waltham, MA. During the technical session on the interoperability and field deployable communications, I gave a presentation on the design and development of a software defined Project 25 data base station. Here …

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Apr
17

The next step in sharing visual media – The new Micro Projector 3M MPro110

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A few days ago I ran across an interesting device in a local electronic store. Finally it is time when such device arrived at our lives with satisfying performance for an affordable price. I found that buying it as a new PDA/phone accessory would be worth considering. It is an ultra-mobile (size: 2.0×0.9×4.5″, weight: 5.6 …

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Jul
31

Radio Testing Lab

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As a part of Project54, we have a newly formed Radio Testing Lab which is used for performing tests on projects related to the usage of Land Mobile Radios. Currently we are working on two projects that attempt to solve problems associated with the utilization of mobile radios. While the first project provides a solution …

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Jun
30

Sony's MP3 dancing robot – Rolly

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Sony revealed an egg-shaped digital music player named Rolly (picture below) at the end of 2007, but I haven’t had the chance to see it until last weekend. It plays MP3 and AAC music files and supports direct music streaming over a Bluetooth connection. And it is able to dance. The Rolly is more than …

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May
21

Anything on Wheels – Forney Museum of Transportation

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My colleague Andras Fekete and I had a chance to visit the Forney Museum of Transportation in Denver, on our journey with Dr. Miller and Dr. Kun to Colorado for the National Institute of Justice conference. The museum started as the private collection of Mr. J. D. Forney with only a few cars. Today, it …

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Apr
11

Software-Based APCO Project 25 Base Station

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The Project 25 standard allows for both voice and data communications on digital radios. However, commercial manufacturers have implemented the data communications portion of the standard using very expensive equipment. While large agencies may have the resources to purchase and maintain this equipment, small agencies, such as e.g. a town police department with a few …

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1 comment

Jun
13

PC-based radio interoperability

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This video introduces a radio interoperability solution based on off-the-shelf devices which were integrated into Project54. As a proof of concept, the Motorola and E.F. Johnson radio devices were used to test the solution. Three simple tests are presented in this video to demonstrate the solution’s capability to patch different radio types in the system. …

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