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Direction Finder Circuits
Direction Finders:  #G      HZ

 

Last Updated: December 31, 2017 06:48 AM


Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

A GPS Module for Your PC -  Link it to your PC and trace your position on and on-screen map.  There's lots of freeware and shareware to use with it as well.___ SiliconChip

A GPS Receiver Based Frequency Standard -  Frequency accuracy has been a topic of special interest to many amateurs and experimenters since the early days of radio.  Until recently, the best frequency standard available to most hams was a crystal oscillator carefully adjusted to zero-beat __ Designed by Brooks Shera, W5OJM

A GPS-Synchronised Clock -  Tired of resetting the time on your wall clock? This GPS circuit will convert a standard battery wall clock into a precision timekeeper that never needs to be corrected.  It will even automatically adjust for daylight saving time.___ SiliconChip

A Multi-Function GPS Car Computer, Part 1 -  This project was inspired by requests from a number of readers.  Essentially they said that the GPS module was great for obtaining a precise time but could we produce a project that used its full capabilities for use in a vehicle?___ SiliconChip

A PIC-based "TDOA" RDF (radio direction finder) antenna unit -  Microcontroller based electronic circuit___ KA7OEI

Alternative Power Source for Magellan GPS Receivers -  This GPS receiver is powered by 2 AA batteries.  They are only strong enough for the GPS to stay on for about two hours, and this seems like quite a waste.  I would like to be able to use a larger battery, and sometimes even an AC adapter. __ Designed by Ryan Janzen

Application for 1.575 GHz GPS with UPC8211TK -  App Note  Doc #960___ California Eastern Laboratories

Build a GPS Boat Computer -  For all the boaties out there, this one could literally be a life saver! You'll never be lost again: as well as telling you exactly where you are at the moment, it will also show you your speed and heading and can even navigate you back to your starting point ? or to that secret fishing spot! It can even tell you how much fuel you're using, along with a host of other vital information.___ SiliconChip

Digital Compass Schematic -  Schematic only, no circuit description given __ Designed by Stakshi Takasi listed as

Dinsmore 1490 Digital Compass -  Biking in the winter, or at night, is dangerous without a front light.  A good front-light is essential, not only for being seen, but to see the road.  LED lamps will not illuminate the road, and they can be too dim for cars to see you (1W or better LEDs are quite nice as headlamps.) I offer here a simple (but high-quality) design to build your own 5 or 10W halogen lamp, which runs off of a rechargeable 7.2V or 7.4V Lithium Ion battery pack. __ Designed by 2007-2014 Images SI, Inc

Direction Finder SystE - M -  Similar to the system used in modern aviation where an antenna array modulates the phase of an incoming signal.  The commercial system is known as Commutated Aerial Direction Finding (CADF) where a ring of 18 identical antennas are each switched on in sequence, just like winding a rotary switch round and round so that one antenna is always connected to the receiver.   __ Designed by Harry Lythall-SM0VPO

Direction sensing Motion Detector -  Detects motion and indicates the direction that a human or animal is moving (left or right).12 pages.  This project is not available as a kit of parts.  __ Golab.com

Electronic Compass Controller Several Projects, scroll down.  Eventually we all want to know just where our robot is, so we can choose an absolute direction.  Usually this type of device is quite expensive.  However to our rescue comes Dinsmore with low-cost electronic compass module.  It outputs the four cardinal points and combinations thereof that will give eight directions.  I decided that combining this with tilt sensors (the Dinsmore compass will only work if not tilted more than 12 degrees) would be a cool project.  I am using a PIC 12C508 to do the dirty work and return an 8 bit number with the directional and tilt data all included____ Designed by Dennis Clark

GPS & GSM-Based Vehicle Tracking SystE - M -  Presented here is a GPS based vehicle tracking system based on the ATMega16 microcontroller using global positioning system (GPS) and global system for mobile communication (GSM).ContentsAn introduction to GPS based...___ Electronics Projects for You

GPS Distance Meter -  Presented here is a project based on Global Positioning System (GPS) and ATmega328P-PU microcontroller to measure the distance between two points using Haversine formula.  This GPS distance meter can be used for...___ Electronics Projects for You

GPS Driver Module for the 6-Digit Clock, Pt 2 -  Based on the GlobalSat EM-408 GPS module, this compact GPS receiver/driver board mates with the 6-digit display described in Pt.1 to form a self-contained GPS clock.  It can also be housed separately and used to provide NMEA 0183 time and date information to a PC, via a serial port.___ SiliconChip

GPS LCD Display Project -  This is a project that I started back late 2003 when I just starting to learn PIC programming.  I wanted to building something that actually did somthing useful.  This project is based on a PIC16F84.  I actually came up with this idea and then after doing some searching I found that a few people had the same idea.  But, I wanted to build my own that I could call mine, developed by me.  The whole idea is, I have several GPS units with no display __ Designed by Jason KE4NYV from Roanoke, Virginia

GPS Module for Your PC -  Link it to your PC and trace your position on and on-screen map.  There's lots of freeware and shareware to use with it as well.___ SiliconChip

GPS Navigator -  Global positioning system (GPS) is a wonderful technology that has made navigation systems highly accurate and efficient in recent years.  All the mobile phones these days come with an in-built GPS...___ Electronics Projects for You

GPS On Raspberry Pi -  A global positioning system (GPS) module is a device used to determine its location on earth in terms of latitude and longitude.  Since Raspberry Pi is a complete computer in itself...___ Electronics Projects for You

GPS receiver (Gamin, Eagle etc) to PC interface cables -  GPSy (TM) has extensive documentation on how to create your own data cables, and if you are handy with a soldering iron (or know how to use crimp connectors) , there are some instructions.   __ Designed by   Global Mapping Systems and Karen Nakamura

GPS Receiver Based Frequency Standard -  Frequency accuracy has been a topic of special interest to many amateurs and experimenters since the early days of radio.  Until recently, the best frequency standard available to most hams was a crystal oscillator carefully adjusted to zero-beat __ Designed by Brooks Shera, W5OJM

GPS Receiver Support Kit -  The GPS interface can be fed in 2 ways: with a stabilized 5V supply or with a 10 to 25V unregulated DC supply.  In both cases the power is fed into the RJ45 connector on point 8.  Pin 7 is DC ground.  The power supply current is first secured with a slow 315mA fuse (in socket).  Then there is a Transzorb device to ground.  This device is a short-circuit for reverse polarity voltages and for voltages above 27V.  It causes the fuse to blow and in doing so, protecting the other electronics and GPS module. 
 __ Contact: pe1dna @ amsat.org

GPS Repeater/Systems Monitor -  Schematic Only   displays nmea-0183 data from a gps, battery voltages, etc. (16f876) __ Designed by Jon Fick

GPS Synchronisation for Clocks with Sweep Hands -  The GPS Synchronised Clock described in the March 2009 issue only worked with crystal clocks that ticked once a second.  The more upmarket clocks have silent sweep hands, which are much more acceptable in a quiet lounge room situation.  Now, with just a few simple modifications, you can upgrade to one of these.___ SiliconChip

GPS-Based Frequency Reference Circuit Mods & Additions -  The short term frequency stability of the GPS-Based Frequency Reference described in the March and April issues can be improved with some circuit changes, as described here.  It's also quite easy to add an RS-232C serial output, so the NMEA data stream from the GPS receiver module can be fed out to a PC for other purposes.___ SiliconChip

GPS-Based Frequency Reference; Part.1 -  Need a source of very accurate 10MHz and 1MHz signals for calibrating frequency counters, radio receivers and signal generators? Here's just what you need: a frequency reference which is linked to the Global Positioning System (GPS) satellites, to take advantage of their highly accurate on-board caesium-beam "atomic clocks".___ SiliconChip

GPS-Based Frequency Reference; PT.2 -  Last month, we published the circuit for our new GPS-Based Frequency Reference and described how it works.  This month, we show you how to build and adjust it.___ SiliconChip

GPS-Synchronised Clock -  Tired of resetting the time on your wall clock? This GPS circuit will convert a standard battery wall clock into a precision timekeeper that never needs to be corrected.  It will even automatically adjust for daylight saving time.___ SiliconChip


Direction Finders:  #G      HZ


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