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- Date: Fri, 14 Oct 94 04:30:16 PDT
- From: Info-Hams Mailing List and Newsgroup <info-hams@ucsd.edu>
- Errors-To: Info-Hams-Errors@UCSD.Edu
- Reply-To: Info-Hams@UCSD.Edu
- Precedence: List
- Subject: Info-Hams Digest V94 #1122
- To: Info-Hams
-
-
- Info-Hams Digest Fri, 14 Oct 94 Volume 94 : Issue 1122
-
- Today's Topics:
- HELP find NC-Tech study prg. for IBM!
- HELP GP161B
- WTB: Radar gun... (4 msgs)
-
- Send Replies or notes for publication to: <Info-Hams@UCSD.Edu>
- Send subscription requests to: <Info-Hams-REQUEST@UCSD.Edu>
- Problems you can't solve otherwise to brian@ucsd.edu.
-
- Archives of past issues of the Info-Hams Digest are available
- (by FTP only) from UCSD.Edu in directory "mailarchives/info-hams".
-
- We trust that readers are intelligent enough to realize that all text
- herein consists of personal comments and does not represent the official
- policies or positions of any party. Your mileage may vary. So there.
- ----------------------------------------------------------------------
-
- Date: 11 Oct 1994 23:06:20 -0700
- From: arbee@teleport.com (Johnnie D. Jordan)
- Subject: HELP find NC-Tech study prg. for IBM!
-
- I want to get my girlfriend into HAM radio (and computers).. I bought
- her a lap-top to learn on and now I'd like to find a really god PD
- program to help her study for the no-code-tech license.. The program
- should be cga or ega as the lap-top has no vga.. Obviously, the program
- must have the questions/answers form the NEW question pool and
- explainations of the answers would be a BIG plus, as would good
- graphics.. I've searched several databases and only found old
- programs.. Please help me!
-
- TNX
-
- 73 de KB7VZL John Jordan Salem, Oregon USA
-
- --
- arbee@teleport.COM
-
- ------------------------------
-
- Date: 14 Oct 94 07:24:16 GMT
- From: johnnym@hpcltr08.NETh.hp.COM (Johnny van Mourik)
- Subject: HELP GP161B
-
- Hello GP 161B users,
-
- Can anybody tell me ,how I can download (get, bget or?) a program with GP161B?
- What are the commnads or icons I have to use?
- For example, I want to download the file "GP161B.ZIP" from a BBS.
- How do I start?
-
- Thanks,
- Johnny van Mourik
- NL1JVM
-
- ------------------------------
-
- Date: Wed, 12 Oct 1994 06:09:53 GMT
- From: billn@hpcvaac.cv.hp.com (bill nelson)
- Subject: WTB: Radar gun...
-
- zoom@iastate.edu (Speed Bump) writes:
- :
- : I'm pretty sure you cant transmit light of the appropriate
- : frequency/pulse duration or coherency to turn all of the traffic lights
- : green like emergency vehicles do. Or can you?
-
- Sure you can. Some just use a strobe at a particular frequency, others
- supposedly use a coded sequence - which would be harder to trigger.
- Coherency is unnecessary.
-
- Bill
-
- ------------------------------
-
- Date: Wed, 12 Oct 1994 06:08:00 GMT
- From: billn@hpcvaac.cv.hp.com (bill nelson)
- Subject: WTB: Radar gun...
-
- hutchine@river.it.gvsu.edu (E.Hutchinson-N8XHP) writes:
- :
- : Well Dave...I just recieved a brochure from K-40 electronics division
- : and they have come out with a little device that is retrofitted in a
- : license plate...they say if you get a ticket by laser then they will
- : send you a check for DOUBLE the amount...they also state that it is
- : 100% legal in all 50 states...and sugg. retail price is $199.99, kinda
- : sounds neat-o to get on and figure out how it does it...
-
- I suspect they will be paying a lot of bucks. One of the reasons for
- using laser is that the beam can be focused easily - since it is coherent,
- unlike radar. That means that the beam may not even strike the license
- plate. The beam could be kept to under a foot in diameter, at the points
- where the automobile's distance is determined - without even having to
- focus the beam. You cannot detect it, if it isn't there.
-
- Bill
-
- ------------------------------
-
- Date: Wed, 12 Oct 1994 05:58:31 GMT
- From: billn@hpcvaac.cv.hp.com (bill nelson)
- Subject: WTB: Radar gun...
-
- steinr@ucs.orst.edu (Jean-Luc Picard) writes:
- : >
- : >All the units I have seen have a trigger on them - so called "instant on"
- : >units. There might be a high EM field, but no microwaves. Are the cops so
- : >stupid that they would rest the mouth of an active radar unit on their
- : >testicles? Highly unlikely.
- : >
- : ...
- : ...
- : >
- : >Maybe the get the cancer from the sugar in their doughnuts.
- : >
- : >Bill
- :
- : Actually, most of the officers that get this form of cancer are motorcycle
- : officers since they must rest their gun near this part of their body
- : when chasing a car.
- : Also the officers in autos may incidentally rest the gun there if they
- : throw it down in a hurry to chase a "speeder".
- : It's not done by choice, that's guaranteed...
-
- Did you see the part about the trigger? How do they dose themselves if
- it is shut off? Also, I would expect that they would have a bracket for
- such expensive equipment - on a motorcycle. Having been a motorcycle
- rider in the past, there is no way that I would trust something placed
- in my lap.
-
- Bill
-
- ------------------------------
-
- Date: Wed, 12 Oct 1994 06:02:50 GMT
- From: billn@hpcvaac.cv.hp.com (bill nelson)
- Subject: WTB: Radar gun...
-
- gregor@nrlfs1.nrl.navy.mil (joe gregor) writes:
- :
- : Now, this can only occur if the radiation you are exposed to is *ionizing*
- : radiation, i.e. finite mass particles (electrons, protons, ions if energetic
- : enough). The most common forms people are exposed to day to day are medical
- : X-rays, and rocks in the soil. Electromagnetic radiation at the frequencies of
- : light or below is *not* ionizing radiation. The coupling between this energy
- : and cell structures in your body cannot be modeled as an interaction between
- : a penetrating high enery particle and the cell. In order for this energy to
- : couple into your body you would need a resonant structure whos size is some
- : multiple or reasonable sub-multiple of the radition wavelength.
-
- Yep. You can cook the sell, but you cannot cause it to mutate.
-
- ... deleted ...
-
- : Recently the FDA has responded to widespread fear of health effects due
- : to power line and cellular telephone exposure by starting a rather large
- : study on the biological and health effects of exposure electromagnetic fields.
- : I attended a seminar at the University of Maryland sometime last year where
- : the latest data was discussed. No conclusion was indicated, although they were
- : trying very hard to find _some_ correlation. In some cases the data supported
- : the conclusion that living under power lines *reduced* the likelyhood of
- : contracting some forms of cancer. This is counterintuitive. What it means
- : is that any correlation is in the noise.
- :
- : They have also failed on the theoretical and experimental fronts to show
- : any mechanism for the alleged health effects of exposure to these fields,
- : although they have just gotten started. They did show experimentally that
- : exposure to strong magnetic fields caused isolated cells of one type to change
- : shape. The cell would change back to normal when out of the field and no short
- : or long term effects on the cells operation were found. I find this result
- : far less surprising than they did, given that certain animals like birds
- : can sense the earths magnetic field for use as a guidance mechanism. The cell
- : would *have* to respond to a magnetic field in *some* way for birds to
- : accomplish this feat!
-
- Thanks for the info. It agrees with what I have been able to find out.
-
- Bill
-
- ------------------------------
-
- Date: 12 Oct 1994 13:37:23 GMT
- From: smasters@bzy.gmu.edu (Shawn C. Masters)
-
- References<36rn41$1d7@newsgate.dircon.co.uk> <374h38$13n@portal.gmu.edu>, <1994Oct10.130145.3885@arrl.org>
- Subject: Re: "How far" does 1 milliwat (and 1 watt) go?
-
- Zack Lau (KH6CP) (zlau@arrl.org) wrote:
- : Liquid Helium is only useful in the microwave spectrum. The background
- : noise temperature at 144 and lower frequencies is too high to derive any
- : significant benefit from cooling your preamp (room temperature designs can
- : exhibit 0.2 to 0.3 dB NF, if cost is not a factor). To obtain a low
- : system noise figure, not only must you have a low noise preamplifier, but
- : you must also have an antenna with a clean pattern that isn't pointed at
- : any warm objects (milky way, the sun, the ground....). The professionals
- : do this with huge horn antennas.
-
- I wasn't thinking about 2 meters, even though the original article
- had posted it. Thanks for correcting the oversight. Although I think the
- background noise is low enough to allow cooling to benefit the UHF band. It
- may not be much of a gain, but some should be available.
-
- 73,
- Shawn
- KE4GHS
-
- ------------------------------
-
- End of Info-Hams Digest V94 #1122
- ******************************
-