How Did You Radio Today?

Discussion in 'Ham Radio Discussions' started by VK4HAT, Aug 11, 2018.

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  1. W7UUU

    W7UUU Super Moderator Lifetime Member 133 Administrator Volunteer Moderator Platinum Subscriber Life Member QRZ Page

    I envy people who pity people that envy them, but it gets so recursive that apathy takes over and I just don't give a crap anymore :D

    Dave
    W7UUU
     
    W4NNF, WZ7U, VK4HAT and 1 other person like this.
  2. N0TZU

    N0TZU Platinum Subscriber Platinum Subscriber QRZ Page

    I actually made two phone contacts on 17m today! Deep QSB to both NM and MS but a contact is a contact especially with the low solar activity.
     
    KC8VWM and KK5JY like this.
  3. KK5JY

    KK5JY Premium Subscriber QRZ Page

    17m is one of my all-time favorite bands... lots of digimode QSOs to be had on a typical day.
     
  4. K2XT

    K2XT Premium Subscriber QRZ Page

    Today I lowered my 80 meter inverted vee and attempted to raise the frequency where the swr is lowest from 3550 up to around 3750 so I could work phone. It took me four tries. A foot or two off each side doesn't do much.
     
    KK5JY likes this.
  5. N0TZU

    N0TZU Platinum Subscriber Platinum Subscriber QRZ Page

    Infinitely better than taking too much off!
     
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  6. KK5JY

    KK5JY Premium Subscriber QRZ Page

    Today, I mostly worked on a GA for developing a software RTTY demodulator. After just 500 iterations, and maybe an hour of search/experimentation time on a four-core i5 CPU, the demodulator produced by the algorithm was able to decode 170Hz-shift 45bps FSK with greater than 60% correlation with the original keying waveform, so I'm pretty happy with the results so far.

    I just moved the processing task to a much faster machine so it could continue working on the problem. I'm very curious to see what performance the first-generation demodulator has, once the GA has reached its search plateau.

    Assuming I get something usable out of that step, I'll probably switch to either a different algorithm for refining the result, or switch the individuals to a different signal processing structure altogether, to see if a different structure can do any better. If/when I get that done, I may try some noisy signals (or fading signals) for the test signals, to see how the resulting algorithm's performance and training change.

    It's a fun project, given that it's too hot to play outdoors today. :cool:
     
  7. W4NNF

    W4NNF XML Subscriber QRZ Page

    Well, I was on 20 for the IARU contest this morning. Till darned old Barry killed the power here (it's back now). Is it going to be one of those summers? I dunno, but I think I'm finally going to get around to having a standby generator installed.
     
  8. W2JKT

    W2JKT Ham Member QRZ Page

    I worked a few stations in the IARU HF Grand Championship of the World.. I didn't log them but I worked enough that my callsign shouldn't be thrown out of their logs as erroneous. Worked barefoot and got 59s on every contact. So, I must be getting out great. (tic)
     
  9. KF5KWO

    KF5KWO Ham Member QRZ Page

    Some of my radials for my 40m 1/4 wave wire vertical had come loose of the landscaping pins holding them down, and were in disarray. I moved them back in position, but this was after a whole day in the south Texas sun doing landscaping, so it’ll have to wait til next weekend to use more pins.

    Thought about my next project: Loop on the Ground receiving antenna.
     
  10. KB2FCV

    KB2FCV Ham Member QRZ Page

    Had a good day on 6 meters. Worked 2 new countries on that band.. Mauritania and Isle of Man... also a bunch of new grids. Good openings to EU/AF and Midwest today and a little into the Caribbean.
     
    KK5JY likes this.

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