On Wed, 04 Jul 2007 06:08:52 -0000, miso@sushi.com wrote:

On Jul 3, 10:56 pm, krackula <krack...@i.am> wrote:

On Tue, 03 Jul 2007 22:50:09 -0700, krackula <krack...@i.am> wrote:

On Wed, 04 Jul 2007 03:28:38 -0000, m...@sushi.com wrote:

http://www.lazygranch.com/stonewall_mountain.htm

lots of laser beams to be seen if you want.   best ( at first )
to look for them at night.  plenty - most  are powerful enough to be
seen in the daytime too.   99.9%  are not visible to humans.

to make yourself an inexpensive viewer ,  use one of these tubes

http://cgi.ebay.com/Night-Vision-Active-Infrared-IR-Image-Tube-ITT-85...

and add a cheap AA powered ps, a  standard 50 to 90mm  ( bigger
diameter glass  works  better  )   to the front of the tube , add a
cheapo   25m ( or 10mm for higher mag )  telescope eyepiece to the
back and you have one " killer "  laser beam spotter.

many - most night vision devices and  especially the inexpensive
russian ones do very poorly or don't work at all for many - most
invisible  tactical laser beams ( not speaking of the ones specially
made for ground troops to use at night , specially made to work with
their night vision goggles )    targeting , and range finding lasers
work   at   1100  ( much higher, 1350mn  and up ,  usually )   mn
...... the above device is broadband ( so to speak )  and works
excellent  above  1100nm.  ( esp 1350 ) night vision devices are
usually blind    there (  at that  wavelength ).

I  posted  two laser pictures in alt.ham-radio.binaries

one is what the beam of a  aircraft targeting laser  looks like
on a nearby  building at night.   smart  a$$ flyboys trying to burn
out my IR camera but missed and got the wrong building !
yaya ay ayya ya

the 2nd one  is ( was ) my own laser lab. the  frame thing on the
on the floor is my pride and joy  water cooled 30  joule pulse yag
laser .
I could make it burn a hole in a aluminum garage door 60  feet
away.  it would shoot a 3' shower of sparks , firing  at a razor
blade , every time it fired  ( once about every   7  seconds ).
and it made tiny holes in the blade every time it hit it !

if you happen to recognize the flag on the pole in the background ,
please don't mention what it is here .  thanks, I appreciate it.

Ooops ...........  ham radio binaries wouldn't let me post the
pictures .......

look , instead, in  alt.binaries.radio-scanner for the pics

I have a gen 2 Russian NV. It can "see" a soldering iron. Your first
photo (the building illumination) wasn't uploaded.

Incidentally, gen 2 soviet era NV can see the trail of a meteor for at
least a minute after it passed.

yea but none of those can see 1350 mn unfortunately.  it's good to
have one tho, as they make good resources for lens and power supplies
for the IR tube I am mentioning here.  these work WAY better than gen
3 NV scopes ..... BUT .. you have to have your own light IR light
source  ah h ahah aha.  a hand held spot light with a 6"  jeep IR lens
filter will  make a target  at 800 yards look like bright daylight
with the above set up .....  and only costs a fraction of a 3rd gen
tube. it's called  " the poacher's paradise " set up !   ah ahha ha ha