Comparison between softwares [GRASP vs POS vs COBRA]

Hi,

Does anyone has used GRASP, POS5 or COBRA software. I need some information about all the above three softwares,

1. Which one of these software is user friendly and are they interdependent on each other?

2. Can COBRA+POS5 do the same job as GRASP?

3. Approximate price of each software with a single license file and one year maintanace contract?

Awaiting a kind and urgent response.

Regards

I'm not using it but this info I can give you.

1.The software is not user friendly like other electromagnetic software. You have to take course in the company.

2. The GRASP9 software is the tool for analysing general reflector antennas and antenna farms. The package is a general tool to handle single, dual and multi-reflector configurations (beam waveguides). GRASP9 can calculate the electromagnetic radiation from systems consisting of multiple reflectors with several feeds and feed arrays. It is even possible to analyse the interaction between various antenna systems, a requirement which is often encountered in satellite systems where several antennas may be mounted in the vicinity of each other. The scattering from a feed or from a reflector of one system in a reflector of another system can thus easily be calculated. A vast amount of different surfaces, including user-defined shapes, can be analysed, just as the primary feed, or feed-array, can be selected from a substantial number of built-in models or from user-supplied data.
POS is for synthesis of reflector from desired coverage.
COBRA generates input data files for POS optimization of all three types of antennas. In addition COBRA interfaces with a variety of other more specialized optimization programs.
When you get the shape of the reflector from POS you can generate with COBRA
The input files for ticra to check your reflector to see if it gives you the coverage that you put into POS.
3. About the price try email to ticra the will give you also more accurate details.