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Simple radio frequency meter on LC7286 and LB3500

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Vermes

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Many people who are interested in electronics, have old digital scale taken from an old car receiver. That tool can easily get damaged and make it difficult to retune a processed receiver. Its another disadvantages are cables and not very attractive look.



In this project, you can got an idea how to improve such a device.

Assumptions:
  • small size
  • battery powered (or with possibility of an additional power supply – in this case it is a 9V battery, but it can be replaced with an accumulator as well)

Dipswitch is a switch of all possible functions of the device.

The design of the board was inspired by kit AVT 2666.

The meter is perfect for beginners – it is small, simple and do not require programming anything. As an instrument for retuning the receivers it works and facilitates repair.



Link to original thread (useful attachment) – Prosty częstotliwościomierz radiowy na LC7286 i LB3500
 

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