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Paul

Wireless Tacho

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I've added my bikes wireless speedometer on a micro heli.

The transmitter part only weighs 3g (thin coil below the servo). I'm not quite sure the accuracy is acceptable, but the range is not.

Has any one hacked such a system to increase the range. At the moment its max. 60cm and I'd like it to be at least 1 to 2m.

Thanks for any ideas, links etc.

Tacho1.jpg

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It would probably take a small PIC chip thrown in line to change the data into what you want to see. It would go between the sensor and the data transmitter on the helicopter. It would take in the data from the sensor, divide/multiply to your liking and then it would go to the transmitter. (Unless the sensor/transmitter are in one unit, then it would take a little hacking).

Matt

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Matt,

The data being transmitted and read is OK - its the range between the transmitter to the receiver I want to increase. Is there a simple antenna device I could make to try and increase it?

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Is there a simple antenna device I could make to try and increase it?

(1) What frequency does it operate on?

(2) What is the FCC ID number indicated on the Tx?

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All I know is its made in Poland.

No FCC number, think thats only applied in the States and I bought it in Europe(and no equivalent CE number).

I looked for frequency specs on wireless speedometres but found none.

Surely, these devices must run on a pretty standard frequency?

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No such thing as standard, especially when it is from another country. Do you know someone with a scanner that can hunt out the frequency?? Usually just making a better antenna will increase range signicantly.

Matt

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