The directional ambiguity can be resolved with a whip antenna and a special phase detecting receiver. But this is getting too complicated and anyway, who wants to walk around a park looking like Robbie the robot. I think the simpler acoustic solutions that have been offered are much better. They are simpler, easier, and cheaper.
Regards. Max. K 4 O D S. Email: [EMAIL PROTECTED] Transistor site http://www.funwithtransistors.net Vacuum tube site: http://www.funwithtubes.net Music site: http://www.maxsmusicplace.com To subscribe to the fun with tubes group send an email to, [EMAIL PROTECTED] ----- Original Message ----- From: "cheetah" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Monday, November 26, 2007 4:22 PM Subject: Re: [BlindHandyMan] radio direction finding project > hi dan a loop will not work as it receives in 2 directions front and back. > they would have to guess where the dog is. > jim > At 09:15 AM 11/26/2007, you wrote: > >>I know very little about this radio stuff, but what about using a loop >>antenna for direction finding. That's how they do those radio fox hunt >>games. A transmitter puts out a signal and a bunch of radio-heads with >>loop antenna, run around trying to find the transmitter. >> >>-- >>Blue skies. >>Dan Rossi >>Carnegie Mellon University. >>E-Mail:<mailto:dr25%40andrew.cmu.edu>[EMAIL PROTECTED] >>Tel:(412) 268-9081 >> >>No virus found in this incoming message. >>Checked by AVG Free Edition. >>Version: 7.5.503 / Virus Database: 269.16.7/1152 - Release Date: >>11/26/2007 10:50 AM > > > > To listen to the show archives go to link > http://acbradio.org/handyman.html > or > ftp://ftp.acbradio.org/acbradio-archives/handyman/ > > The Pod Cast address for the Blind Handy Man Show is. > http://www.acbradio.org/news/xml/podcast.php?pgm=saturday > > Visit The Blind Handy Man Files Page To Review Contributions From Various > List Members At The Following address: > http://www.jaws-users.com/handyman/ > > Visit the archives page at the following address > http://www.mail-archive.com/[email protected]/ > > If you would like to join the Blind Computing list, then visit the > following address for more information: > http://jaws-users.com/mailman/listinfo/blind-computing_jaws-users.com > > For a complete list of email commands pertaining to the Blind Handy Man > list just send a blank message to: > [EMAIL PROTECTED] > Yahoo! Groups Links > > > > > > > -- > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.5.503 / Virus Database: 269.16.7/1152 - Release Date: > 11/26/2007 10:50 AM > >
