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A tracking device

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SlicRic

New Member
Hi,
As part of a school science project that I am doing I require a tracking device, I will hope to use it at the end of my presentation as a finale, I have seen simillar posts to this using a simple transmitter but the one I need has got to be a little more powerful anyware in the upwards range of 400m 500 metres being ideal, I am guessig that the circuitry will have to be quite complicated to get this range, but then again maybe not, could someone please provide me with an appropriate design please?
Thanks, Mick.

P.S This should be an RF transmitter, if you provide circuit diagrams could you please say how I can pick up the signals!
 

microtexan

New Member
As part of a school science project that I am doing....could someone please provide me with an appropriate design please?:rolleyes::rolleyes::(
 

audioguru

Well-Known Member
Most Helpful Member
The lousy old BA1404 FM stereo transmitter IC was replaced by a line of much better ones by Rohm years ago. All the new MP3 to car radio transmitters use the new ones. A few kits still use the discontinued lousy old one.
 

mneary

New Member
From your other posts, you were asking about the 535 - 1605 kHz band. Is this still the case?
 

SlicRic

New Member
Microtexan: As a response to your post I need someone to provide me with a device to track someone, I dont need to show how well I can design a xmitter, I need to show the many uses of radio, OK
 

Sceadwian

Banned
SlicRic I think the purpose of the exercise was for YOU to determine these methods, not to ASK other people how those methods might be determined. Don't try to chide Microtexan because you lack imagination.
 

SlicRic

New Member
Okay thankyou all for your replies, i do not lack imagination, i could very easily have designed a simple tracker of my own but i lack the experience at 14 years of age to build one that covers 400m or more, i was just asking for help.
 

Boncuk

New Member
Hi SlicRic,

that was an absolutely honest reply. Congratulations!

I'm still missing something very important: Tracking means at least obtaining a relative bearing of the "target".

Transmitter and receiver characteristics are of less importance for now.

So my question to you: How would you "track" without knowing the direction?

To find out the direction of a target you'll need a set of two antennas: one omnidirectional antenna and a loop antenna.

Read about that (ancient) system googling for NDBs (Non Directional Beacon), which are still in service in 3rd world countries serving for air navigational purposes.

After having studied NDBs you might come back and have more precise questions.

Regards

Boncuk
 

colin55

Well-Known Member
Here is a simple tracking transmitter that will reach 400metres. Use a 6v supply. You may have to adjust the 10k.
 
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HiTech

Well-Known Member
How about taping a sign to a person's back and use good binoculars to track them with. That's good for 400 meters. If you use a small telescope, you could get miles of tracking distance!:p
 
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