Subject:
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RE: PipeXplorer
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 24 Dec 1998 16:32:52 GMT
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Original-From:
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jeff <JEFF@UEN.spamlessORG>
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Viewed:
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1385 times
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If your desiring greater distance - go get a Amature Radio license. In the
US there are several sections of frequency bands that are for experimental
use, and even RC (radio control). A reasonable knowledge of electronics
and some fairly easy study on rules would yield a Technician Class License
(in the US - sorry I'm there and so don't know a lot about other countries
rules). This would let you use the approrpiate frequencies for your
explorer, and cover a greater distance. Sorry if I've not gotten too far
of topic for the list. I'll try to answer questions about this of list,
but will say no more in this here :)
Jeff D. Payne
UtahLINK Network Operations
On Thu, 24 Dec 1998, Norman Fair wrote:
> I would look in "Spy" stores for transmitters. I'm sure anything that
> transmits more than a few meters would be limited in some way by the FCC
> (in the US). Also, you have to take into consideration how the pipe or
> tunnel will affect the signal.
>
> -----Original Message-----
> From: CyberUser [SMTP:CyberUser@mksftwre.demon.co.uk]
> Sent: Wednesday, December 23, 1998 4:18 PM
> To: lego-robotics@crynwr.com
> Subject: Re: PipeXplorer
>
> In message <4.1.19981223125736.00a090f0@195.61.90.220>, Laurentino
> Martins <lmartins@marktest.pt> writes
> > Anybody ever seen a similar project?
>
> Yes - check out Gantenbrink's robot which was used to explore shafts
> inside the Giza pyramid. This one cost a lot of money though! It had to
> travel about 200 feet with only about 8 inch cross-section. You might
> get some ideas for the expanding structure and treads though.
>
> It also had a colour camera with zoom on it and a laser pointer to shine
> into cracks.
> Anyone know how of a small legal video transmitter of sensible price to
> avoid a cable? The actual camera can be CCD a few centimetres square so
> that is not a problem.
>
> Dennis
>
> --
> CyberUser
>
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Message is in Reply To:
 | | RE: PipeXplorer
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| I would look in "Spy" stores for transmitters. I'm sure anything that transmits more than a few meters would be limited in some way by the FCC (in the US). Also, you have to take into consideration how the pipe or tunnel will affect the signal. (...) (26 years ago, 24-Dec-98, to lugnet.robotics)
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