[Laser] (no subject)

[Zack Widup]

I had noted that the SFH-203's were in the same package as described.  I 
haven't used those particular detectors yet.  I see some on eBay.  I'll 
have to buy a couple and try it.

73, Zack W9SZ

On Tue, 28 Mar 2006, Kerry Banke wrote:

> Art - I did get a chance last evening to sand off the lens on an SFH-203 
> detector and polish it.   There was a definite improvement in sensitivity 
> as well as narrowed field of view as you had stated.  I didn't get a chance 
> to make  quantitative measurements last night  but I will do that just for 
> the record.  The focus had been mushy as one might expect from a miss match 
> and is now more definitive.  The aiming is of course more critical but that 
> will be helpful in eliminating interference from other nearby sources.   I 
> had been meaning to run that experiment for some time & appreciate your 
> comments which spurred me on to finally doing it.
>   - Kerry N6IZW -
>