It´s just Experimental. It works fine so far. Interesting ist the Chrip mode with sooo less power. It´s like the Lora Devices. Many miles with just some Microwatts. I think it is of course not a ready to go WSJTX and will also not compete with them. It´s for HAMs they want to try somehting. Maybe he will develop it with more options and Devices. By the way, he wrote: " You may download the new version 1.2.08. I added more radios in the selection. Untested radios start with * character. Also the radio model and port is saved for next use. Make sure to modify the radio settings as explained in the setup manual. If you test a new radio, please prepare a short document to add in the user manual. Many users ask for sound settings to be set in the LongChat. I will have a look at it but will take some time." 73 Andre
Sounds like he's just in early stages of development. While I get it, never know what the heck mode that tone i just heard was, I think the experimenting part is needed. I remember when JS was in testing, it was quite a while before anything other than update posts even became a usable version.
He should allow FLrig as the radio; that would intermediate with any of a zillion CI-V configurations. Chirping is not magical. Shannon still applies. It's basically a form of FSK, slightly spread.
WELL...that explains the QRM when I was trying to QSO on CW. Pity the FCC doesn't give one flying flip about Amateur any longer. And Quite frankly, I don't believe the ARRL does. The "hobby"...once service...reflects on exactly what my QRZ comment picture represents. Larry, Moe and Curly. And pretty much the condition of the United States.
This is my concern also! If you are transmitting on the very bottom of a band, 50.0 Mhz in this case, and use LSB, you will be transmitting OUT OF BAND.
Some good example for sound files: https://www.sigidwiki.com/wiki/Category:Amateur_Radio http://www.dk5rk.de/soundbeispiele-fuer-digitale-betriebsarten.html https://www.fading.de/ueber_die_kurzwelle/hoerbeispiele_kurzwelle_funkdienste So maybe it helps you and others to identifx the "Code". 73 Andre
This attempt to define a "new mode" just drives to the IoHT (internet of ham things...). Combine that with the AI and here it is: the artificial HamRadio! No, thanks!
- Hi, I am the author of LongChat chirp mode. I started it a few years ago as a project for low power sensor applications. Then I wanted to try it as an experimental digital ham mode. - The correct link for the software is at https://drive.google.com/drive/folders/1NQwbeoHE3vPLORGN1krpSNHHI9brhDJh -LongChat is an encoder/ decoder. In general it should work on all modulations LSB, USB, FM, AM etc. - I usually work with USB at lower band edges and LSB at upper band edge. It is easy to miss it when changing the modes. I guess I relied on IC7300 to disable transmission at band edges. IC 7300 does allow that though. I had no specific reason for using LSB. It works both on USB and LSB. - I am preparing a new video to compare the power efficiencies of digital modes. I will post it here when ready - Newest version is 1.3.00 . Setup manual, version info and other things are also in the link above.
- LongChat is experimental and supports a number of radios. Untested radios are marked with * as the first character - I am not an experience radio ham in operations and regulations. Maybe experienced radio hams can designate frequencies and protocols for test purposes. - Since the signal is way below the noise level (-13 db) , there is yet no equivalent of a waterfall display like FT8, JS8 etc. This makes it harder to see the activity. - You can view the waterfall in FT8 because it's minimum SNR is -4 db. and bandwidth is 50 hz . People quote -21 db as the SNR for FT8. This is the referred SNR if the bandwidth were to be widened to 2500 Hz. My next video will clarify these issues. - Since there are no designated frequencies for LongChat, it is difficult to find some one for QSO -There is also a criticism of LongChat not being open source . LongChat code has some new algorithms with IP value. If I open the source code to radio hams, people and companies with commercial interest will also have a free access. But I totally respect and mostly agree with the open source advocators.
- In short, LongChat is an experimental mode. My effort is to bring the SNR of LongChat to the limit dictated by the Shannon channel capacity theorem and make it the most power efficient mode. - If people want to experiment with it, I am ready to support. I am not the best person to decide on the designated QSO frequencies, LSB or USB selection, protocols etc. If some of you want to do that , or perhaps open a group here or on google groups i.o, I would be happy to get involved.
I don't know how this link of several years ago found its way again. This was the google drive link I used long ago with my friends for test purpose. Correct link for ver 1.3.00 is at https://drive.google.com/drive/folders/1NQwbeoHE3vPLORGN1krpSNHHI9brhDJh
