Stefan
You are making a Simple job Difficult
g3kev
----- Original Message -----
From: "Stefan Schäfer" <[email protected]>
To: <[email protected]>
Sent: Saturday, October 08, 2011 5:09 PM
Subject: LF: Laser link...
> 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 city. A simple
> laser diode, driven at 15 to 20 mA should work fine for some hours when
> having a solar panel that charges during the day. You know these small
> lamps for the garden with a solar panel, switching on automatically when
> it gets dark...
> Just seen HA6PC at OE3GHB-grabber but nothing here or at DF6NM (yes Mal,
> i know, you've all worked them in the past...).
> Pure AM is probably not the best choice, rather FM.
> Does someone of you has useful experiance of such a laser system or even
> a ready to use circuit or some hints about a compact IC that does the job?
>
> No warnings about the danger of laser light please.
>
> 73, Stefan/DK7FC
>
> PS: Sri for beeing a bit OT
>
|
