Contest Club
QRV since 1993.

Welcome radio amateur!

Just a remark regarding this project:. We are not company, but guys with a ham radio hobby who share info!

This page is intended to guide you through the building process of the PI4CC high power band pass filters. A project overview can be found here.

We stopped selling the PCB's but you can get a lot of insparation to build your own.

Read the Q&A, order the needed parts from another supplier and build/prepare the housing..

Exact details regarding the coil sizes, how to tune the filter and a program which calculates the coil parameters with copper tubing you have available will be send to those who have placed an order.


Page changes can be found here.


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