• [PE4BAS] VarAC

    From PE4BAS via rec.radio.amateur.modera@21:1/5 to All on Thu Mar 10 09:24:17 2022
    XPost: rec.radio.amateur.moderated

    PE4BAS Amateur Radio Weblog

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    VarAC

    Posted: 09 Mar 2022 01:11 PM PST
    https://pe4bas.blogspot.com/2022/03/varac.html


    I've experimented with digimode chat software in the past. Remember the V4Chat, FSQ experiments, FT8Call that became JS8 and a few others. Actually first chat software I experimented with was PSK31, I already used that in
    1998. And before that we had packetradio which was widely used on CB here,
    I remember we had some chat software for that as well. Some other modes
    feature a simple chat as well, I experimented with Olivia and other modes.
    The fun is that every chat software has some advantages and disadvantages.
    The ultimate chat program should have more advantages as disadadvantages of course.
    VarAC
    Recently 4Z1AC Irad started to program VarAC, chatsoftware that uses the
    VARA mode software for transceiving signals. VARA is well known for use
    with e-mail over radio using Winlink. I wrote about this before last year.
    I can write about all features VarAC has on board, but you can read it all
    on the very nice VarAC website:
    https://www.varac-hamradio.com/


    Installing VarAC
    Installing VarAC is simple. Get it to work together with OmniRig to control CAT/PTT is more complicated. But I managed it well since much of the setup
    is the same as with previous experiments. Personally I use VSPE to split
    the USB port to be able to use it for CAT and PTT. You can find some tips
    about that in this post. I also suggest you read one of the manuals or at
    least the quick start which you get with your download link.
    Problems and help from other users
    At first I thought I had a problem with incoming connections, it worked out that a neighbour station was trying to connect me while he had
    configuration problems. I discovered that after I called for help on the
    VarAC facebook page. I met some very friendly users including Irad 4Z1AC himself that helped me. As a matter of fact my second QSO was with 4Z1AC,
    and a day later we chatted again as you can see above.
    Advantages
    I have to say this software is really fun to use, much easier to use
    compared to JS8. The graphical interface is very clear. Another huge
    advantage is that there is no timeslot like JS8 (and FT8, FT4 etc.). You
    don't need the internet or a GPS receiver to keep your computer on exact
    time. I would rather choose it for mobile/field communications in time of emergency. The internet is vulnerable and GPS is probabely switched off in
    case of a global "disturbance". But well, although you could use this
    software seriously in case of emergency it is actually made to have fun.
    The biggest fun is that Irad is doing constant updates to improve the
    software and implement new ideas. Ideas you can propose yourself by the
    way. So far Irad is also a very active user himself as I experienced, I
    guess he is on 24/7 on 20m. You can always leave him a message.
    In the past chat software like this was not really for the logfilling FT8 community. Well, Irad solved that. VarAC logs automatically. Even when you
    just send a PING for you report. So, DXing, logfilling and chatting is all
    in the same package. Now we only need a lot of stations using it. So far, I already saw some stations that experimented with FSQ and JS8 before. I even
    had a short chat with fellow blogger OH8STN Julian from Finland who also participated in previous experiments. I've had fun with this software
    package so far and will be experimenting with it when I have some time. I'm curious what new features will be build in in the future and hope to see
    some more and new users.
    Disadvantages
    A disadvantage I see so far is the bandwidth of the signal which is 500Hz
    (or even 2300Hz). It is quite wide compared to FT8/JS8 and other "modern" digimodes. Luckely Irad has made a QSY option including a notify into the software, something that only works when you have CAT control. At least
    this will prevent collisons in case there are more stations trying to call.
    I know it is complicated but having CAT/PTT control from within the same package instead of relying on omnirig would be a lot easier for many
    people. What I read on the site is that in the next update the split
    function I do with VSPE will be build into the software, it is a good step forward.
    My personal ideas for the future
    What I would like to see in the future is something like a postbox,
    messages (mail) you can store for certain stations which they can read as
    soon as your are on air. JS8 has something like that. JS8 also has a
    relaying feature, I found the use of it a bit complicated. Since VarAC uses
    a real connected status I think it would be better to use certain stations
    as a kind of node like the node stations in packetradio. I remember we
    could kind of DX connecting from node to node and get further away as the normal reach. In the nineties of last century I was quite active on CB packetradio and I had a unmanned TheNet node at my parents house as well.
    In some circumstances I was able to hop nodes till about 4 or 5 nodes
    sometimes reaching more as hundred kilometers away instead of the normal 10-20km. I might try to think it over and ask Irad to try implementing it
    in the future.

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    DX Commander

    Posted: 08 Mar 2022 04:06 AM PST https://pe4bas.blogspot.com/2022/03/dx-commander.html




    If you're looking for the DX Commander youtube videos you'll probabely find nothing anymore. Please try this link https://www.youtube.com/channel/UC6wLPPAzu7iPDMaUeHoVvJw for his new
    youtube channel DX.Commander.

    Callum M0MCX seems to have some issues with google at the moment so his
    youtube channel is suspended.
    Since blogger is also "google" I had some issues as well regarding adsense
    in the past. I tried to get it right but "google" doesn't care and I don't
    care either anymore. If my blog would get suspended I would probabely start over again just like Callum.

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