The HamBone

Re: [linuxham] FreeDV (was Re: Best Linux for Ham Radio) Subject: Re: [linuxham] FreeDV (was Re: Best Linux for Ham Radio) From: "Mooneer Salem via groups.io" <mooneer=gmail.com@groups.io> Date: 11/3/24, 14:01 To: linuxham@groups.io Hi Dave, (Disclaimer: I'm one of the developers on the F...

Good morning all, Alan Swinger has a HF antenna for sale that will get you working DX w/ modest power and not requiring a big tower! Call or email Alan if interested. 73, Alan K9MBQ alan.swinger@gmail.com FOR SALE: TWO (2) ELEMENT CUBEX CUBICAL QUAD ANTENNA Used this Quad in many locations includin...

Rick. How does the later FreeDV handle high levels of man-made noise (especially pulse type noise) these days? The earlier 1.8.x version (I built from source on Mint) was terrible, the slightest QRM would kill decoding for up to half a second, making it worse than analogue SSB under such conditions...

Now considering other ham radio digital programs, has anyone used the Opensuse Build Service to "build" an RPM for FreeDV? (other than the guy that did it for FreeDV 1.8.9) There's been many changes since the above version and now the 2.0 Beta is also out. Have a look! https://freedv.org/...

QST is still very much with us, and in its digital edition, fine value. The November edition contains 132 pages of full color articles, news, product reviews and more. The cost of ARRL membership is less than a monthly trip to Mickey D's. OK, there is something you don't like about ARRL. Me too, but...

A fine new issue of the experimental journal included with ARRL membership. This month, some items caught my eye: Decoding Morse CW with a Variable- Length Self-Synchronizing Code Mark R. Titchener, ZL4CDE This explains in detail not only how a self-synchronizing coder/decoder works, but also the ci...

And who knows what other hare-brain idea comes tomorrow... I get kind words about my HF signal, and generous reports on FT8 etc., so the question always comes up, "what is this antenna, and how much power from the linear?" No amp, just a barefoot IC-7610 with 1.42 firmware, running DPD, st...

Just a thought:
We have a Clock at home that radio-synchs to WWVB on 60kHz. It's motor died, but the radio seems still alive, so I kept it while I ponder how to re-tune it to SAQ and other VLF goodies.

Any good ideas?

DPD (Digital Pre-Distortion) is signal preprocessing before the transmitter power amp, to remove much IMD from the final signal. Often available on professional and commercial transmitters. Comes standard on the new IC-7760, and can be easily added with the newest free firmware upgrade from Icom. So...

Good People, here is the ARRL DX News 40:



Enjoy! Some fine pointers, and if you want more, I highly recommend the Dominion DX Group (DDXG) at:

https://ddxg.net/