Cw skimmer hack

If you have a question or suggestion, please comment below. I will do my best to answer it and your experience will help others as well. Tags: khz cw skimmer cws hdsdr icom telnet. I'm an Amateur Radio enthusiast. I love the hobby and experimenting with radios, antennas and software. I hope to inspire people to try new things in Amateur Radio. Nice to hear from you and great question. I believe so, because one or two of the updates required loading the settings back for me.

If you save your settings prior to updating the firmware, you can load them back after the update. Nice to hear from you. I have a few of these cables I use on and off for various things.

FTDI 3 ft. FTDI 10 ft. Clicking on W1AW in the band map tunes the radio to This may be helpful if anyone else encounters an issue.

It takes a little getting used too and I took it slow for a while by just running narrow before delving into wide. Do I need to use the stereo cable from the phone jack to my computer sound card speaker jack also?

Thanks, Tom. I agree to have my personal information transfered to MailChimp more information. Connect with. Oldest Newest Most Voted.

Inline Feedbacks. Bill Leger. Thank you in advance for your answers. William B Rich. Brad N6GR. K0PIR rich. Hi Bill, Nice to hear from you and great question. Rich, K0PIR. Hi Brad, Nice to hear from you. Kermit KF5VM. Hi Kermit, Nice to hear from you. I have not run across that. It must be in the settings somewhere. Reply to K0PIR. Reply to Kermit. Hi Kermit, Thanks for reporting back and yes your experience will help others.

But where are the weak signal modes that can be transmitted and received by a low end micro-controller? If you are interested in building your own radio transmitter CW is the easiest way to start. I even bought a kit, how hard can that be? It is hard. On the other hand… Check out the Michigan Mighty Mite. If I ever get confident enough to actualy go on the air with Morse code then I will start building CW radios of increasing complexity and work my way up to voice.

I guess it will depend a lot on which I get to first! When it comes to transmit power efficiency, Morse is still very high on if not at the top of the list. Morse code is used more now than at any time previously in its long history. So it is a very good thing to know for extreme survival situations. I think it will never be outdated or replaced. If simplicity is a component of efficiency, and I think it is, then nothing can even come close to Morse code operation.

I am a ham radio operator who struggles to use Morse code. The reason? They seem to determine the presence or absence of a tone by the volume of the audio received. The ear, on the other hand, determines the presence or absence of tone based on the spectral purity of the signal received. The ear easily hears the difference between a tone and a static crash.

A key thing the ear picks up is not only the presence of noise of the proper frequency, but the relative absence of noise of other frequencies. Brains are pretty good at that sort of signal processing. A way to go is to use a teensy, make an fft and look at the frequency range where you except the morse signal. A magnitude threshold gives you the tone. Should the FFT be somehow too slow a implementation of the Goertzel algorithm will help Has anyone done this so far? CW Skimmer will decode up to morse code signals at once.

It can be used with a standard sound card audio input or attached to an SDR receiver for wide bandwidth reception. On Sunday, RBN decoded , total, not unique callsigns. I guess someone must still be using Morse code. The bands were active with a contest and a DXpedition to Navassa Island.

I remember struggling to get it to calibrate itself well enough by listening to a few dits and dahs before attempting a decode. Long before DSP and it was a pretty fun project for a budding coder. Just use an NE to detect the CW tone. Also it appears that the conversion only occurs if the code is being transmitted at a specific rate. Morse code is not king anymore.. Modern digital modes, like WSPR, are very impressive in their weak signal capacity.

There is, however, one thing that Morse code has than none of these other modes will ever have: the feeling of accomplishment that comes from mastering a skill. In this area, Morse code is like playing a musical instrument, learning a second language, or training for a marathon.

It has advantages of simplicity and reliability, but it is also something we do to challenge ourselves and have fun in the process. Please be kind and respectful to help make the comments section excellent. Comment Policy. This site uses Akismet to reduce spam. Learn how your comment data is processed. By using our website and services, you expressly agree to the placement of our performance, functionality and advertising cookies.