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Weakmon This software implements terminal-window programs for HF JT65 (jt65i.py) and FT8 (ft8i.py). With an Elecraft K3, both can listen for CQs on multiple receivers simultaneously, and switch the receiver(s) among bands each minute.
There are also demodulators for WSPR, APRS, WWV, and WWVB. The software works on Macs, Linux, and FreeBSD.
While these programs don't use Joe Taylor's WSJT software, they do incorporate ideas and protocol details derived from that software. These programs use Phil Karn's Reed-Solomon and convolutional decoders.
The software depends on a few packages.
Don’t get us wrong, we love our Raspberry Pi. But if you’re merely running a Linux image without adding a hardware hack into the mix you’re missing out on part of the power for which the platform was developed. This project is a great example of how to embrace the Raspberry Pi’s ability to deliver both low-level hardware access, and solid embedded Linux performance. Dan Ankers and Threeme3 have developed a program which.
The GitHub readme shares many of the details on how it was done. But you’ll also want to dig through the.c file to see how they’re making use of the GPIO header pins.
William Meara sent in the tip for this. He’s been featured on Hackaday previously for (Weak Signal Propagation Report). It’s an amateur radio protocol which lets you communicate over very long distances using relatively weak transmitters. The trick is to use computing power to find the signal hidden in all the noise. Be warned that you do need a HAM license to try this out, but otherwise all you need to connect to the board is a low-pass filter and an antennae. via Photo credit: Posted in, Tagged, Post navigation.
That and it’s truly not hard to get a license. A technician license which has full privileges on all ham bands from 50MHz on up is pretty much at the same level as the A+ certification in computers. If you have a pulse and have an interest in the topic you probably know and/or can guess your way to a license. If you find you like it, a general license that gets you in to the rest of the bands is a bit of studying beyond that.
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The interrupters liberty for mac free. I missed general by two points my first try when I only intended to go for technician (if you pass one you can take the next for free) and hadn’t studied for anything. Bill, I haven’t looked at this specific code, but it is basic GPIO bit banging.
The question becomes one of discovering how fast your CPU can toggle the pin while still leaving enough CPU time left for performing the work of the program and other overhead. A few years ago, I did some tests on a C2000 Piccolo USB stick to determine how fast I could make it go, but only got the GPIO up to 3 MHz or so with all the CPU spent.
That board’s probably not a candidate for this project. Try writing a simple bit toggling program and scope it or use a counter.
Wspr Receiver Module And Software For Mac
I would feel confident if I got a frequency of at least 5 to 10x the frequency I need to work at. As a bonus, look at the waveform on a scope and you’ll see why you need a filter!:) US hams don’t have 136 kHz or 470 kHz allocations, so if the ‘Duino doesn’t work on 160M, it’s a no go. (But, I have a Beaglebone for another project and it will likely do the 70 cm band (430 MHz):) ) 73 and GL, N1KGH. Just a warning that you need to have an amateur license to do this.
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Whilst the risk of getting caught is small it is still there and the fines the FCC issue are five figure. Getting an amateur license isn’t all that hard or expensive to do and opens up a whole new world to investigate and play with. Amateur radio is about learning and experimenting with radio and there’s a whole host of really interesting stuff to do including communicating by bouncing signals off aircraft, rain clouds, meteors and even the moon itself. A lifetime isn’t enough to do everything possible in amateur radio.