And what about a radar scanning signal

And what about a scanning radar signal? At the Satellites screen, every second a bar scans the sky

radar scanning signal

what do you mean with radar scanning signal?

radar screen

try to imagine a radar screen...

(it´s just a visual pormenor)

-every second a bar(with a shadow) goes around the circle (Scanning) and the satellites images is updated, and then the bar disapears... (this will be very fast cause it will appened every second...)

- or a little circle from the center, getting bigger till reach the outside circle...

- and with a beep also, every scan

Something like this..

.. i don´t know if this is compatible with what you want for the applicattion and Sorry the english...
And it would give some extra work i think... If it won´t make so much diference, leave it that way... it´s good

it is only java. I try to

it is only java. I try to keep the app as small as possible. nice visual effect have low prioroty, but I know, customers want them ;o)