You are here:

Satellite Communications/Experts

ExpertAverage RatingsExpertise

Luis Emiliani

U.K.
Available
Strengths - Satellite link design and analysis - Vsat network design and analysis - Propagation aspects for terrestrial and satellite links - ITU-R P recommendations Can not help with: - Questions related to TV receivers, TV kits, or specific networks such as DirecTV or DISH - Antenna pattern synthesis, RF MoM analysis, S-parameters.

Recent Answers

2012-02-06 Link Availability:

hi,  the basis of the model is found here :    ITU-R Rec. P 581:  http://www.itu.int/rec/R-REC-P.581/en  ITU-R Rec. P 841: http://www.itu.int/rec/R-REC-P.841/en    note that this model is only applicable

2012-02-05 Steps for a SCPC link:

hi  there are quite a few steps from getting the content ready to uplink and distribution.    http://www.ehow.com/how_5192644_launch-television-channel.html    as far as the transmission part via satellite

2012-02-03 Back-off:

hi,  it is not about failure rate, understanding as failure an event in which the hpa stops working.  it is about the magnitude of the unwanted products    you need to get from the data sheet of the sspa

2012-02-02 Back-off:

Hi,  for SSPAs, you need to make sure you do not exceed the 1dB compression point.    for single carrier operation the performance of the device should be good enough below the 1 dB compression point,

2012-01-27 PHASED ARRAY ANTENNAS:

Hello,  after googling the subject i found a few links.  i suggest you try these references. they will provide answers to the questions you raise.    http://www.antenna-theory.com/arrays/main.php    http://etd

More Answers in Category Satellite Communications


Satellite Communications

All Answers


Answers by Expert:


Ask Experts

Volunteer


©2012 About.com, a part of The New York Times Company. All rights reserved.