DJ2LS / FreeDATA

A free, open-source, multi-platform application for sending files and messages, using the codec2 HF modems
https://wiki.freedata.app/
GNU General Public License v3.0
141 stars 17 forks source link

Add the 27Mhz #419

Closed maxlinux2000 closed 1 year ago

maxlinux2000 commented 1 year ago

in europe we can legally use 27Mhz in any digital mode. Please add 11 meters to the frequency list, thanks MaX

DJ2LS commented 1 year ago

@maxlinux2000 are you talking about frequency list used in explorer?

maxlinux2000 commented 1 year ago

@maxlinux2000 are you talking about frequency list used in explorer?

yes :-)

DJ2LS commented 1 year ago

Ah yes, for sure! Btw there is also an own repository for the explorer in my profile - just for info for the next time 🙂

Could you do me the favour and telling me about your experiences on 11m/CB? Specially with the radios!

Feel free writing me on discord or via email.

maxlinux2000 commented 1 year ago

Hello, I still can't tell you anything because I don't have the antenna on the roof. I'm renovating the house and the time hasn't come yet to re-install the antenna... but I got it soon :-) Until recently I have used js8Call in 11Mt and I have had great experiences. I hope your App is much better. The idea is to use this app for a Prepper group that we have created.

Soon you will have news. I will pass this app to my friends

DJ2LS commented 1 year ago

@maxlinux2000 thanks for your reply! Yes, Js8Call and FreeDATA are completely different I think. What kind of radios are you using and how do you connect them to the computer? This is an area I don't have experience at, because I'm only using ham radio devices and the 11Mt device is already really old. Specially this part is really tricky and I'd like to make it as easy as possible. Regarding to your prepper group - We are working on a broadcast / groupchat. Maybe this is useful for you, specially if you have users, which are close together.

maxlinux2000 commented 1 year ago

Hello, the CB radios we use are from the modern ones such as the president mckinleyII and even the old Cobra/CRT/Superstar 3600/3900 from the '90s. For example, I have made several contacts with Australia from Spain using both a modern CB and an old radio from 30 years ago (super joppix 1000). As interface we use an adapter similar to EasyDigi... which contains inside a serial<->usb adapter and an Audio<->usb interface. All the interfaces that are used for FT8, psk31, sstv... are valid.

Why CB in 27Mhz? because there are many more people who use these free frequencies than radio amateurs. And you are much more likely to be able to contact on this frequency during an emergency than in all others. Actually we are thinking of using the PMR446 for this too, but that is another matter.

Regards MaX

DJ2LS commented 1 year ago

@maxlinux2000 Updated Explorer. I used frequencies in a range from 27.0 - 27.9 MHz, if we need more fine tuning, we can do this then if needed.

maxlinux2000 commented 1 year ago

tnx a lot

On 5/22/23, DJ2LS @.***> wrote:

@maxlinux2000 Updated Explorer. I used frequencies in a range from 27.0 - 27.9 MHz, if we need more fine tuning, we can do this then if needed.

-- Reply to this email directly or view it on GitHub: https://github.com/DJ2LS/FreeDATA/issues/419#issuecomment-1556705044 You are receiving this because you were mentioned.

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