On Tue, Jun 30, 2015 at 5:58 AM, Grimmund <grimmund@gmail.com> wrote:

On Mon, Jun 29, 2015 at 8:31 PM, William Ewing (via tml list) <nobody@simplelists.com> wrote:
RADAR: Bam! bearing and range, in digital format for entry into fire control computer.

Sure. Except with radar, you have to wait for the signal to round trip. And your radar transmission gives your position away.

How so? Your returns travel at the same speed a passive return would.

LIDAR: Range and bearing, digital.

Same problems as radar....

Telescope: nice picture

How big is that processor converting said picture?

Evyn