Bill NG1P provides a bit more detail on his Top Band (160m) mod success.
“I’m having a blast on 160m I did add larger heat sinks and a pair of small fans that I can turn on and off as needed to keep the finals cool if I’m long winded or using digital modes.
“Qrp labs makes a great low pass filter kit:
“I added a BNC adapter to connect to the LPF to keep it simple.
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