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Re: Trouble ahead- mixed signals?


 

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Hi Vic,

Thanks for your reply. I was pretty sure that was your point of reference but it is not safe to assume. My only interest in WSJT modes is to evaluate propagation and I don't transmit with it (but I might). I have had some contest and QSO party contacts that are more interesting. I am glad to have those stations on the air and when I want them I always know right where to look. Just like WWV. I have used the other, load handling, digital, teleprinting modes and enjoyed them the way you have pointed out. Paying attention to "on topic", my uBitX is one radio I use to copy those signals these days. I will try LinPSK on the olde Pi just to see how it does.

Once upon a time my computer was big and heavy and so was the display even though the image was small and often hard to read. Now my computers are tiny and easily ride in a shirt pocket. They can reasonably operate from a small battery pack. My displays are on 30 inch HD television screens now :) I have one a little smaller that can also operate from batteries:) And another that mounts on a Pi case! The weight and bulk of the vacuum tube radios could induce injuries and required a lot of power that was wasted in heat energy. Now we can carry some of them in cargo pockets and operate digi modes walking through the state and national forests! As my grandfather used to say - "the only thing good about the good olde days is they are gone!".

My 'legacy Pi' will be used in cli mode in the kitchen to present recipes and manage grocery lists. Just not both at once!

73,

Bill? KU8H

bark less - wag more
On 3/23/21 6:32 AM, Vic WA4THR via groups.io wrote:

Yes, Bill, all my comments about the "little Pi" were referring to the Pi-Zero, actually the first and only Pi I have ever had. I gather it runs at about the same or slightly faster than the original Pi, so I think the LinPSK program would work there. That program has no issues on the Pi-zero. As I recall,the Pi-4 is something like 10 or 20 times faster and it is commonly used for decoding FT(x) stuff, but WSJT-X is still a bit marginal on the Pi-zero. I have slowly got it within 4 seconds of finishing decodes before the next cycle (I think it was like 20 seconds behind when I started), and that is with a 10% boost in the clock speed. Still, it may be good enough for my occasional use of that mode. I have made a number of contacts that way.

I like PSK-31 much more as you actually learn something from each contact and have the opportunity to have a conversation. Fldigi, which many have running on Pi-3 and 4 versions, just was too much for the Pi-zero and it would just lock up. I have toyed with the thought of trying it again with some of the speed improvements I made to run WSJT-X, but LinPSK works very well, so I will probably stick with it. If you look at ADD/REMOVE programs in the Pi menu, v 1.3.5 is what comes up, I think, but the author has upgraded to 1.3.7 to fix some of the logging issues I reported when I started using it. There are a few other minor issues right now and we are still in email conversations about them, but I have had many nice QSOs running with just a Kindle Fire tablet connected via WiFi to the Pi-zero attached to the uBitX, which works even out in the boondocks as the Pi-zero can automatically become a WiFi hotspot if it doesn't log on to a system.

=Vic=

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