Category Archive: QRP

Jul 10

The Quest for the Genuine IRF510

The Problem Recently, I had a need to replace the IRF510 PA MOSFET in my BITX40 radio. A malfunction with my VOX PTT circuit caused it to stay keyed down for a very long time while unattended. Oops! With that fixed, it was time to replace the IRF510. The Search I scoured the usual places …

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Jul 04

QRP Antenna Pole: 23ft for $10

No matter whether you’re using JT65, Voice, CW, or any other mode, you need to have an antenna. When you’re QRP, you also need all the help you can get. And high is might,. right? If you are going to be portable, you need a portable antenna. At my home, I don’t have room for …

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Jan 27

The BITX40 FAQ

The BITX40 FAQ All around the web folks are asking questions about the BITX40v3. This is my attempt to answer the most common questions raised. I am not affiliated with hfsigs.com or anybody who is. If you have your own question about the BITX40, leave a comment below and I’ll be glad to answer it. …

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Nov 26

40 Meters for $45: The BITX40 SSB Tranciever project.

This time around we’ll talk about an exciting radio: The BITX40 kit from hfsigs.com in India. More about that in a minute! The most expensive thing about ham radio is not getting your license. In fact that’s probably the single cheapest part of the whole hobby! Just some study time and $15 to take the …

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