Solar Power for Hams

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  • Опубликовано: 24 дек 2024

Комментарии • 18

  • @donaldsmith3048
    @donaldsmith3048 4 года назад +1

    Wow how the prices have changed!

  • @kd5you1
    @kd5you1 4 года назад

    This is a very informative video, however I would like to post a correction: MPPT stands for Maximum Power Point Tracking, and MPPT solar power controllers maximize power extraction under all conditions. Another way to consume less power is to use a HT with the battery saver enabled.

    • @langstonfelix3668
      @langstonfelix3668 3 года назад

      sorry to be off topic but does any of you know a trick to log back into an Instagram account..?
      I stupidly lost my login password. I appreciate any help you can give me

    • @cullenalfonso609
      @cullenalfonso609 3 года назад

      @Langston Felix instablaster ;)

    • @langstonfelix3668
      @langstonfelix3668 3 года назад

      @Cullen Alfonso thanks for your reply. I found the site through google and Im in the hacking process now.
      Seems to take a while so I will reply here later when my account password hopefully is recovered.

    • @langstonfelix3668
      @langstonfelix3668 3 года назад

      @Cullen Alfonso It worked and I finally got access to my account again. I'm so happy:D
      Thanks so much you really help me out :D

    • @cullenalfonso609
      @cullenalfonso609 3 года назад

      @Langston Felix Glad I could help xD

  • @2guitarme
    @2guitarme 6 лет назад +2

    Love this video, but a correction. 10.5vdc is considered dead. So when the MFG's do the 20hr rating, they go from 12.7 (full charge) to 10.5 volts (considered dead) to make their calculations. 12.04 vdc is considered 50% discharged, which is the lowest point you should take a deep cycle battery to to keep maximum life.

    • @QRPSchool
      @QRPSchool  6 лет назад

      I asked Tim Kreth (author of this video) about this. Tim replied: "The manufacturers test their batteries for 20 hours to set the Amp-hour rating. I agree that 10.5 V is a dead battery. That is exactly what the factory does in order to set the Ah rating for their lead batteries. This is the standard testing protocol. If 2guitarme has different info from a reputable source, I would be happy to review it." Please see this PDF... qrpschool.com/wp-content/uploads/2019/01/Deep-Cycle-Battery.pdf

    • @2guitarme
      @2guitarme 6 лет назад

      @@QRPSchool No, I agree. They adjust their load to maintain a 5 amp load down to 10.5 volts. I understand the Peukert effect, but that is taken into consideration with the 20 hr. draw vs. a shorter time period. My point was just about the 0 volts vs 10.5 for a dead battery. Lead acid batteries are very complicated! :) 73 And again... thanks for the videos!

  • @kemteh
    @kemteh 5 лет назад

    Thank you. Very clear presentation.

  • @TheFarmFlyer
    @TheFarmFlyer 9 лет назад +1

    Great job explaining the math involved to calculate power needs. Thanks!

  • @rogerparrett3242
    @rogerparrett3242 8 лет назад

    Excellent overview. Thanks! Recently acquired a Yaesu FT-817 @ Dayton and am in the process of learning all about QRP rigs (coming from a Drake TR7 rig with the L7 1.5kW linear). Awesome advice.. Subscribed. 73... Roger / NQ8RP

  • @Coffeebreak6329
    @Coffeebreak6329 5 лет назад

    We haven't ran out of gas since 1973.

  • @EugenioGuarente
    @EugenioGuarente 9 лет назад +1

    Thanks, excellent presentation.

  • @bradleyjohnson452
    @bradleyjohnson452 8 лет назад

    Very informative. Thank you

  • @Mr_Meowingtons
    @Mr_Meowingtons 6 лет назад

    this is good!! Thanks!