Am 10.10.2011 15:18, schrieb mal hamilton: [...] Concentrate instead on proper LF Antennas, Sensitive receivers and plenty of RF,[...] Good idea, never done that before. I really should think about f
Stefan es Friends If you need all these add on gadgets for LF es MF ie lazers, fm repeaters, carrier pigeons then the Cause is Lost. Concentrate instead on proper LF Antennas, Sensitive receivers and
Stefan, Check out Max Carter's info: http://www.maxmcarter.com/lasrstuf/laserexperiments.html Dex Just thought about trying a LF RX in the forest and feed the signal via a laser link to the building
Hi Stefan, Clint Turner http://ka7oei.com/ has interesting information on his "optical communications page" http://modulatedlight.org/optical_comms/optical_index.html. Linear's design note DN399 abou
Thanks Dex and Scott, Enough stuff to study now. The seconds page seems more useful for me. Ok about that OT. 73, Stefan Am 08.10.2011 21:09, schrieb Scott Tilley: Hi Stefan http://www.k3pgp.org/lase
Agreed. Our safety officer summed the situation up very neatly: Concerning eyes, the unit of issue is two, and there are no spares. People with only one good eye were forbidden to work with lasers. T
Stefan. I can only endorse Daniele's comments, I to worked on fibre optic communications for many years, and the only safe laser is one that is switched off, never wave a live optical fibre arround,
Thanks again Scott. Yes, the building should be stable ;-) We have a working group here that works with that optical stuff all the time, they surely can give me filters and further advice. They told
Hi Stefan I've created a wide-band audio link before using a laser. In fact, I used it to bounce the audio I wanted to send off of a passive reflector. Wideband and excellent fidelity is possible, ju
Hi Stefan http://www.k3pgp.org/laser.htm I use his detector and modulator circuits for my system. 73 Scott Just thought about trying a LF RX in the forest and feed the signal via a laser link to the
Scott, Did you have any trouble with temperature-sensitivity of the optical filter? When doing experiments at 633 nm (He-Ne red) I had to use a narrow band filter to keep that part of the ambient lig
Andy, Johan, Wolf, Scott, Dex, all, Thanks for the useful links and suggestions. I'm looking forward to some tests and really would like to set up a link to a RX antenna for 137 in the forest!. Will
And there is http://www.g4jnt.com/OpticalComms/OpticalComms.htm Andy 'jnt On 10 October 2011 06:19, Johan H. Bodin <[email protected]> wrote: Hi Stefan, Clint Turner http://ka7oei.com/ has int
LF, Just thought about trying a LF RX in the forest and feed the signal via a laser link to the building here. There is a good direct view to several suitable places, a good 1000m distant from the ci
