FDV & DATA

[Jose Donnari]

friends just to show what is possible to send on the same frequency and at the same time data signals and digital voice in this case we are using  free DV and also Ros 7.

It could be used as a chat at the same time that you are talking without using the internet

THANKS   & 73

[James Madden]

Problem with ROS:

Jose, when I launch ROS, it tells me that it can use Com1 for communications. I actually use Com3 and that works with other apps such as JS8call, FreeDV, Winlink, and WSJTx. I'm thinking this is a bug in ROS that does not allow me to specify Com3 as the comm port. 

Here;s a screen shot:

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[Gary Kohtala]

Just a reminder for US amateurs. ROS is not legal for our use because it was concluded that it is a spread spectrum wave form. The conclusion is most likely flawed however. It was about how the wave form was presented to the FCC. It would have been better for all to have kept our big mouths shut. ROS was very popular in the US until the FCC shut it down. There was a big storm over that some years back, from which we have never recovered. ROS is truly a superior wave form. Too bad tempers flared and the FCC banned it outright. The next best modes are VARA-HF and Pactor 4, the latter of the two also not legal in the US. Let's hope VARA does not go the way of ROS.

Best regards,

Gary

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[Jose Donnari]

Hello Gary... thanks for your ideas... it's a pity  that ROS suffered that fate in your country... even 10 years ago it had a small chat like FDV has now... and a penetration similar to FT8 at minimum speed.
The fact of managing it only with voice, both in transmission and reception, makes it very inclusive, especially for those who have visual disabilities. It can also be used in VARA or VARAC, although they are much slower.. they do not allow a fluid conversation, as in FDV, and very prolonged.. which is emulated quite well with the ROS at 16 bauds.
Anyway, FDV IS THE BEST DIGITAL VOICE MODE THAT EXISTS.. and I am sure it will continue to improve..
By the way, do you know anything about FreeDV 450...??? It could be quite a surprise...
greetings from Argentina
LU5DKI

[Mooneer Salem]

Hi Gary,

I had to look that up and found the following from the ARRL about it: https://www.arrl.org/news/fcc-reaffirms-statement-on-ros. Interestingly, the creator of ROS claims that it's a "base band" mode and not "spread spectrum" (Q17 at https://www.dropbox.com/s/ulesvdfft5r0806/ROS%20F.A.Q.%28English%29%203.0.pdf?dl=0), but I'm not sure how much that really matters. Maybe one day we'll start regulating by bandwidth instead of mode, making a lot of this moot.

Thanks,

-Mooneer K6AQ

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[Brian Morrison]

On Mon, 18 Sep 2023 19:54:02 -0400
Gary Kohtala <gary...@gmail.com> wrote:

> Just a reminder for US amateurs. ROS is not legal for our use because
> it was concluded that it is a spread spectrum wave form. The
> conclusion is most likely flawed however. It was about how the wave
> form was presented to the FCC. It would have been better for all to
> have kept our big mouths shut. ROS was very popular in the US until
> the FCC shut it down. There was a big storm over that some years
> back, from which we have never recovered. ROS is truly a superior
> wave form. Too bad tempers flared and the FCC banned it outright. The
> next best modes are VARA-HF and Pactor 4, the latter of the two also
> not legal in the US. Let's hope VARA does not go the way of ROS.

A bigger problem with ROS and VARA-HF is that neither of them are open
source programs, that makes them unusable for many of us who care about
the ability to look at how something works and improve it as well as
having access if the original developer(s) decide to abandon their code.

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Brian G8SEZ

[ma...@flyfast.net]

"not open source" and "unusable" is a choice.

In the case of VARA, if Jose is disabled or abandons the project, the code base is escrowed for continued support.

Unless you are using an analog transceiver, likely you don't have access to the DSP programming or FPGA/etc., programming - does this mean you won't use any "proprietary" modern radio?

Matt
AL0R

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[Brian Morrison]

On Tue, 19 Sep 2023 11:44:01 -0500
<ma...@flyfast.net> wrote:

> "not open source" and "unusable" is a choice.

Some may think that way, others don't. Yes a choice may need to be
made, but these modes cannot be distributed with my OS of choice
because there is no source code available.

>
> In the case of VARA, if Jose is disabled or abandons the project, the
> code base is escrowed for continued support.

At least that is better than the alternative, but I still can't see why
it isn't open now.

>
> Unless you are using an analog transceiver, likely you don't have
> access to the DSP programming or FPGA/etc., programming - does this
> mean you won't use any "proprietary" modern radio?

I put effort into the battles that I believe can be won, but there is no
doubt that I would prefer to see the internals of amateur radio
equipment designed by amateurs under open source licences. It could be
done, and in some cases it is.

The world benefits enormously from reusable code from Free Software and
open source projects, I would love to see the future of amateur radio
in the hands of its users. I would pay to use open designs where they
are available. In fact I already do where I can.

--

Brian G8SEZ

[Mooneer Salem]

FWIW, the hardware and "gateware" (basically FPGA code) for the Hermes Lite 2 project (http://www.hermeslite.com/) is open source. That plus one of the open source SDR applications out there that support it and you've got your open source radio :)

BTW, bringing it back to the topic of this mailing list, Quisk has FreeDV support built-in if you do have a HL2 or one of the other radios that it supports.

-Mooneer K6AQ

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