CyberMaster programmable brick : 21


Robotics / CyberMaster / 21	20 \| 22

Subject:	Re: Increasing the range of the radio signal
Newsgroups:	lugnet.robotics.cybermaster
Date:	Mon, 6 Dec 1999 22:33:08 GMT
Viewed:	7450 times

I would second the recommendation for trying different locations for the tower. At one point I had so many problems with "dead spots" with my exploring rover (that needs to communicate with the map making/route finding software running on the PC), that I ended up implement a lost signal mechanism to let the rover recover. Then one day when sorting out my work room I moved the tower to the top of my bookcase. Suddenly no "dead spots" ! I played around and basically decided that getting the tower away from the PC and monitor was a good thing to do. Andy Falk Stricker <falk.stricker@gmx.de> wrote in message news:FMBLus.FwM@lugnet.com... > > Mignon batteries? > > Mignon batteries are batteries of size R6 like used in CM. > > > If you read the thread I referenced before, you'll see that Anders > > Isaksson _specifically_ claimed success with 1.2V recharable > > batteries. > > You are right the nominal voltage of this recharable batteries is 1.2V but • I > tested the voltage of a just refreshed batterie under load and then the • real > voltage was about 1.25 V. > > > I don't know if he tested the communication range, but only > > 2-3 meters of range seems rather obvious. > > Perhaps I should test the CM-connect on adding an additional batterie... > > Regards, > Falk

Message has 1 Reply:

		Re: Increasing the range of the radio signal
(...) I would suspect that antenna placement, and possibly considering a different antenna design, would make a huge difference. Look in some radio books for things like Yagi designs. Give you much more range, but also make the antenna very (...) (25 years ago, 14-Dec-99, to lugnet.robotics.cybermaster)

Message is in Reply To:

		Re: Increasing the range of the radio signal
(...) Mignon batteries are batteries of size R6 like used in CM. (...) You are right the nominal voltage of this recharable batteries is 1.2V but I tested the voltage of a just refreshed batterie under load and then the real voltage was about 1.25 (...) (25 years ago, 6-Dec-99, to lugnet.robotics.cybermaster)

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