Re: [PSES] Chambers for link budget testing

2013-07-15 Thread Grasso, Charles
Hello Brian - It turns out that chambers used for emissions testing are not suitable for antenna/rx sensitivity type of measurements due to excessive reflections. OATS and chambers are considered suitable for EMC work if the chamber calibration is met with a +/- 4db spread for emissions and

[PSES] Chambers for link budget testing

2013-07-12 Thread Grasso, Charles
Hello all, I am looking for a chamber that would be suitable for testing link budgets (i.e. from one system to another) preferably here in Colorado. Does anyone know of such a chamber? Best Regards Charles Grasso Compliance Engineer Echostar Communications (w) 303-706-5467 (c) 303-204-2974 (t)

Re: [PSES] Chambers for link budget testing

2013-07-12 Thread Brian Oconnell
Have no answer, but have questions because I am an EMC amateur, and thought that this could be done at any OATS or 10m chamber. Thought that link budget was done using parameters of free space loss and rx sensitivity and tx power. For this characterization, why is a speacil chamber required?