EMECalc

This software, with the addition of a simple level indicator and preferably an in-line switched attenuator, will provide an accurate way of assessing your equipments' performance.

When using linear polarisation, it is highly desirable to match the path commensurate with the Station you are working at the time. This software will accurately predict, with a very high degree;
the level of your own Moon echo's
the level of Echo's you will receive from another Station
the level of Echo's the other Station will receive from you
the level of Sun Noise you and the other Station will receive.
the level of Moon Noise you and the other Station will receive and
the level of received Galactic Noise you will expect to receive with combinations of Sources.