[Laser] Field Day 2004

Wed, 7 Jan 2004 21:30:53 -0500

Using the K3PGP front end fed into a LF rcvr you can copy the 
Sub Carrier along with the tone or audio from the Ramsey TX.

I see many signals and use the one at 14 Khz. You end up converting
Light to RF which will impress a lot of hams as well... Your converting
lite to RF

I didnt check to see How much output the Ramsey detector  
would generate on LF but when pointing the PGP detc toward the Puter
monitor I can see RF up through several 100 Khc . 

I put a Phono Plug at the Ramsey rcv and have the supplied Diode in a
Phono plug
this allows for changing detector

lots of fun

Bob  K3DJC 

On Wed, 7 Jan 2004 21:04:44 EST [email protected] writes:
> Our amateur radio club is starting to plan for Field Day 2004, and I 
> am 
> planning to set up a laser communications station (it is worth a 
> voice contact, a 
> CW contact, and a digital contact, plus a 100 point bonus if we use 
> a 
> non-traditional mode (like pulse width modulation).  
> 
> I was wondering if others are planning Field Day operations ( and if 
> you are 
> not, at least get you to think about it).  It should be an 
> interesting display 
> for the public, even if you just set up some LEDs to demonstrate the 
> concept 
> at 10 to 20 feet range.  Lets let the world know how much fun it is 
> to talk on 
> a light beam!
> 
> If anybody knows, does MCW count as CW or Digital under the field 
> day rules.  
>  If it is classed as CW, I will try PSK  or something else for the 
> digital 
> mode.  If it is classed as digital, then I will set up a keyed Morse 
> laser 
> transmitter that is not pulse modulated and a receiver for it.  
> Anyone done this 
> before?
> 
> James
> N5GUI
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