Hi fellow hams/contest OP's I just want to let you know that PI4CC is ready to bring there high power bandpass filters pcb's available for the ham community. This is hobby project and you can build a
Thanks Peter. Bear in mind that bandpass filters between transceiver and power amplifier will protect the receiver, and double stubs, optimally located along the transmission line, can provide more t
PI4CC have most likely believed the people claiming the double stub would be just 6dB better than a single stub. That would be true if the two stubs were placed at the same point along the line, but
PI4CC have a very good single stub system. https://www.pi4cc.nl/tech-info/stubs/ PI4CC have most likely believed the people claiming the double stub would be just 6dB better than a double stub. PI4CC
Hi Jukka The double stub sound OK But its hard to manage when you just have 4 m2 of wall to mount all filters/switching gear and multi antennas per band. The bandpass filter will not only bring down
Look at DG0SA website. He offers bpf too. Matt -- PI4CC have a very good single stub system. https://www.pi4cc.nl/tech-info/stubs/ PI4CC have most likely believed the people claiming the double stub
Peter, It is hard to compare my filters with your design despite the fact that they are very close by circuits. I think we had a different specifications for the design. - I designed BPFs not for a m
Peter, <<It has better numbers as 4O3A, DG0SA, VA6AM. It is hard to compare my filters with your design despite the fact that they are very close by circuits. I think we had a different specification
Author: Rudy Bakalov via CQ-Contest <cq-contest@contesting.com>
Date: Sat, 29 Apr 2017 18:19:34 -0400
I own Pavel's filters and can testify that they work amazingly well in SO2R and M/S setups, especially as part of a triplexer based system. No cross-band interference at all at full legal power. Even
OK Peter, The discrete component based solution is better as you have acquired the necessary skills. Taking into account your space limitations, your solution is excellent. At OH0V, we built a separa