[NLRS] Another thought about light QSO's

[Marciniak, Ed]

The electronic detection portion is fine as is.

An ir to visible image converter tube, albeit incoherently, is performing the same function of a mixer and lo converting a cw signal down to a frequency of choice. It also happens to provide a light gain of 300.
Coherent reception of a laser is ALMOST beyond technically feasible at this point.

The rule should stay put since there isn't really anything in between.

One could always put a photodiode and a low pass filter in front of a tv screen and have it actuate a relay and a buzzer if you don't allow the operator to look at the monitor....

Most likely changing the rule will result in some stupid workaround like that.

 

----- Original Message -----
From: nlrs-bounces at mailman.qth.net <nlrs-bounces at mailman.qth.net>
To: NLRS at mailman.qth.net <NLRS at mailman.qth.net>
Sent: Thu Dec 10 18:59:14 2009
Subject: Re: [NLRS] Another thought about light QSO's



think they better beef up the electronic detection portion of the rule..

I fail to see how using a camera to see a light source that is just 
outside the range of human vision should qualify for contest credit.. it 
is almost no different than looking at cw blinking flashlight.

w9Ray

Richard Clem wrote:
> 
> As I was looking through the Ramsey Electronics catalog last night, I realized
> that there is one extremely simple method of detecting light (or infrared
> LED's).  If you ever need to check the batteries in your TV remote control,
> and easy way to do so is to look at the LED With a digital camera.  
> 
> I suspect that it wouldn't be too difficult to make it visible a kilometer
> away.  So if an infrared LED is allowed with just one stage of electronic
> detection, then it would be pretty trivial to do CW QSO's with a TV remote
> control and cel phone camera.  I'm not sure how, but it seems to me that ought
> to be excluded from the definition, as having very little to do with amateur
> radio.
> 
> On the other hand, if it's not excluded, I would be very happy to hand out
> QSO's using a TV remote control, a flashlight, or even smoke signals (after
> all, that's just a system of modulating the ambient light).
> 
> 73,
> Rick W0IS
> 
> 
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