On Mon, 21 Jan 2008 01:06:06 +0100, Marc Heusser
d wrote:

In article ,
John Navas wrote:

http://www.sea-me.co.uk/ ...

BTW: Do these (active reflectors) also work if you have your own radar,
ie will they make you visible to other vessels?
Or is it only possible to use passive ones (90? reflectors, Luneburg
lenses)?

Never quite figured that out in spite of my MSEE degree :-)

Marc

It appears from the user handbook that the thing is a radar
transponder - on receipt of a signal in the appropriate frequency
range, it will transmit a brief pulse on that frequency, which will
appear as an obvious mark on the radar screen, just like a RACON.

It is independent of your own radar - but must be mounted so that it
will not be triggered by your radar.

--
Peter Bennett, VE7CEI
peterbb4 (at) interchange.ubc.ca
GPS and NMEA info: http://vancouver-webpages.com/peter
Vancouver Power Squadron: http://vancouver.powersquadron.ca