Effect of Terrain on HF Antennas
In Febrary 2011, Puerto Rico Amateur Radio League president, Felipe Hernandez, NP4Z, asked me to discuss the topic of what is the effect of the terrain on the far field antenna patterns.
Last Updated (Thursday, 03 November 2011 23:58)
ARRL Field Day 2011Undoubtly the ARRL Field Day (FD) is the most popular Amateur Radio activity in the US. Each year, thousands of US (and territories) stations participates on the FD. FD from KP4 becomes very challenging after sunset when 10m and 15 meters closes. During the nights, all we have is 20m and low bands, where US stations are geographically close and its very dificult to keep a QSO rate. Last Updated (Wednesday, 29 June 2011 03:29)
Air Force One Approach Audio
After checking-in into San Juan International west Approach sector (119.4MHz), they were cleared direct WESEN, the Innitial Aproach Fix for ILS08. 8 NM from PATTY NDB, they were cleared for the Approach. Shortly after, they were handed off to Tower sector. The following is the real audio of the approach sector as recorded from my IRRS ATC feed. Note spaces between communications were removed. Embed Embed this video on your site Last Updated (Thursday, 16 June 2011 11:46) Touch and Go at Isla GrandeAfter more than one month without flying, on Sunday, December 6th, 2009 returned to the yoke. This time brought Correy Shelly with me for a short ride from Isla Grande to Arecibo and back to Isla Grande. Last Updated (Wednesday, 21 April 2010 17:51)
Biographical Information
My name is Eric M. Guzman-Colon. Born 1972 in Aibonito, Puerto Rico. My Parents are Mr. Victor M. Guzman (Salesman) and Mrs. Carmen A. Colon (Teacher). I have a sister Carmen L. Guzman (SSA Case Analyst). "Coca" (as we call her) has two daughters: Ana G. Herrero and Ines del C. Herrero. ![]() I attended the following schools: Sucesión Torres (elementary), Bonfacio Sánchez (intermediate) and Dr. José N. Gándara (High School). I also attended the University of Puerto Rico, Mayagüez Campus (Colegio) where I earned a BS in Electrical Engineering in 1996. Currently I am living in San Juan, PR in a Walk-Up complex called Caminos Verdes. I work for Alcatel-Lucent as an Radio Frequency Engineer delivering Radio Frequency Design and Optimization services to several Wireless Service Providers in the Caribbean. My hobbies includes Amateur Radio and Computers. I earned the highest Amateur Radio License the FCC grants in 1992. My FCC license is NP3A. I am a morse code enthusiast and I can't find something more exciting than Radiosporting or contesting. Being a PC Gamer, I enjoy playing Americas Army (1st person shooter) and Microsoft Flight Simulator in VATSIM.
Last Updated (Friday, 02 July 2010 19:29) |

