Low-tech Tiny UHF tracker transmitter

Подписаться 8 тыс.

Просмотров 17 тыс.

50% 1

A very small circuit that can be used to track objects up to a distance of about 400m. No GPS or other Hi-tech , just a little RF transmitter that sends out intermittent beeps. Locating it requires a directional antenna and adjustable attenuators.
Current consumption is about 180uA on average.
Battery is a 1.5V silver oxide battery.
BTW, do not attempt to stick anything like this in your nose, like Arni did. :-)
Full building instruction on Instructables. www.instructab...
drive.google.c...

Опубликовано:

15 сен 2024

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист

Посмотреть позже

Комментарии : 21

@sergeantcrow 4 года назад

Brilliant.. A fantastic project.. needed to occassionally track a cat..

@captainKts 4 года назад

Ok. Now put another directional uhf RX antenna on a pan and tilt mount with diversity rssi to Arduino. and add a bracket for a separate video RX and antenna and you have a pnp UAV tracker. Hot market for this. Just add the UHF TX to your UAV and you have much improved video reception.

@tomtechtod9200 4 года назад

Wish I had the time

@TEKKKNO 3 года назад

Whats the maximum range?

@tomtechtod9200 3 года назад

Depends on the quality of the receiver and antenna. As far as I remember I couldn't get out more than 400m

@baloneyjusticecheezedog 6 лет назад

I am confused by when you mention weight and size.. it sounds as if the bigger the object you attach the UHF transmitter to the more clearly you get a signal too?

@tomtechtod9200 6 лет назад

Israel Harris No. The object needs to be big enough to see it from a few meters distance. The problem with the attenuators I used is that they don't attenuate enough, so once you get within a distance of a few meters of the transmitter you can't determine a direction anymore. I guess attenuating the signal even more would work once near the transmitter but I didn't investigate this any further.

@baloneyjusticecheezedog 6 лет назад

I'm vary confused by this.. but I am not knowledgeable in electronics.. I was able to find this though your instructable page since I can on it by pure coincidence. you might actually see my questions on it under the name cheesedog. I'm actually interested in using this as I did describe there.

@christhompson6216 3 года назад

is it possible to power this off a 12v battery ?

@stevewhite315 5 лет назад

Are these the 0201 metric packages and where do you buy them?

@tomtechtod9200 5 лет назад

I buy mainly on digikey

@datkanookandors2437 5 лет назад

do you sell these trackers? and are they 100% waterproof?

@tomtechtod9200 5 лет назад

I don't sell them. The circuit could be made 100% waterproof, this here is not

@shanebekker 6 лет назад

Interesting but your phone screen is not visible nor the beep audible.

@tomtechtod9200 6 лет назад

Shane Bekker I do hear the beep but I agree with the screen, it's the damn snow

@sail7seas974 5 лет назад

Is that a 1.55V or 3V cell in transmitter?

@tomtechtod9200 5 лет назад

1.5V silver oxide.

@mc7272 6 месяцев назад

Unfortunately I have a patent on this product, guess I’ll have to forward to patent attorney again

@blechhammerer4008 2 месяца назад

@mc7272: Go and f*** yourself, Troll. That is a demonstrator, not to be sold. Or was it a joke?

@blechhammerer4008 2 месяца назад

Its a demonstrator to share knowledge. Go f*** yourself.

@charliebrownn6622 26 дней назад

Y ya lo tienes en producción ? Ya se puede comprar ? Por qué si no tan solo eres otro troll de patentes , El cáncer de la innovación y el verdadero progreso