[Laser] XE2AT status test :-(

[KY1K]

Hey Al,

I'd say you did well, congrats on another record distance there!

Yes, the 100 ohm feedback resistor makes the receiver quite deaf compared 
to the more optimum 2.2 megohm value! I wish you had a soldering iron with 
you when you attempted the QSO. If you could have gotten anything in there 
other than the 100 ohm, you probably would have made contact, even a 22K or 
100K resistor would have made a BIG difference.

Next time you get stuck like that, remove the 100 ohm resistor by cutting 
through the body of the resistor and leave the leads in place. Try wrapping 
the leads from a more appropriate resistor value. It might be intermittent 
and well less than optimum, but it will probably perform well enough to get 
your qso done.

Was it a 2 way attempt, and who was the other operator? Did both receivers 
have the 100 ohm feedback resistor?

Again, congrats.

Art


At 01:30 PM 11/11/2004, you wrote:
>Dear friends nice to see all you ...
>After a loon period of bad weather here in Mexico ( very rare )  finally 
>we can do another test for align the 3x telescopics with the laser 5mw 
>pointer type.
>The weather was not bad and we can see the Lasers but not than bright like 
>last time at 45 km, this time was at 69 km and some times the bad weather 
>cross the line of sight and the laser was very low but we can see each other...
>Not all was good because after we can align the lasers we canot hear 
>NOTHING !!!! yes you read well, at 45 km the signal was loud and at 69km 
>was less than S1 !!!!
>we canot copied the RST so no QSO was made.......
>The Ramsey receiver is with the modified OPT101 Art design but it has the 
>external resistor of 100 ohms because I do a presentation 2 weeks ago and 
>I use the voice Tx also...
>I am thinking to replace the resisitor for a 2.2 M ohms and I will advise all
>Meanly a lot of bad weather continue here !!!!!
>GL and 73 s to all
>I need just 75km QSO for VUCC :-) HELP !!!!
>Al
>XE2AT
>
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