Testing The ARRL End Fed Halfwave Antenna (

แชร์
ฝัง
  • เผยแพร่เมื่อ 4 ต.ค. 2024

ความคิดเห็น • 54

  • @josephgomes8543
    @josephgomes8543 ปีที่แล้ว +23

    Hey Dave, I love your videos, I hope you make many more. I AM worried about that shortness of breath, brother. Stay well, keep smilin' and play radio.

    • @lefty-bw1zp
      @lefty-bw1zp ปีที่แล้ว +2

      I’m worried about his shortness of breath too.

    • @ku4uv
      @ku4uv ปีที่แล้ว +1

      Yeah, I agree. He's wheezing like crazy.

    • @horstjaeger2569
      @horstjaeger2569 ปีที่แล้ว

      Better go to a doc. Maybe you Need an inhaler and everything will be fine in future. 73 my friend

    • @ku4uv
      @ku4uv ปีที่แล้ว

      @@horstjaeger2569 Well, like most hams, he's overweight. Losing weight would probably help.

    • @thetruthserum2816
      @thetruthserum2816 ปีที่แล้ว +3

      I concur, that's a telltale sign of underlying issues; Dr. would prescribe 150 minutes of level 2 cardio per week + 3x weekly resistance training to increase base metabolic rate... Motion is medicine... Use it or lose it.

  • @tpobrienjr
    @tpobrienjr 3 หลายเดือนก่อน

    Good demo, Dave. I like your rule: "With antennas, everything affects everything". Software is like that - I think of it as a big net full of fish. Change one line and it's like snipping one string and everything moves!

  • @AC3HT
    @AC3HT ปีที่แล้ว +1

    Dave, thanks for the good video and groundwork footage. Looking forward to future video updates on the EFHW. 73, AC3HT

  • @notthatguy4515
    @notthatguy4515 ปีที่แล้ว

    Thank you for your knowledge Dave.

  • @joeb3300
    @joeb3300 ปีที่แล้ว +1

    I am looking forward to the results! It is still a little too chilly here for me to have tried the experiment (using the cap in the middle of the 80M antenna) that you suggested, but I'll get there. Will also be using a ~95' EFHW for the Armed Forces Day Crossband Test (13 May 2023) on 60M. Be safe!

  • @don_n5skt
    @don_n5skt ปีที่แล้ว

    Thanks Dave. Glad you have your channel is back. I have this antenna and I found that it did not have a weep whole and the humidity got to it. Great kit but I would suggest a weep hole.

  • @johnnybigpotato2404
    @johnnybigpotato2404 ปีที่แล้ว

    Lovely out these days! Thanks Dave!

  • @montybates5176
    @montybates5176 ปีที่แล้ว

    Great video. I bought that antenna when I first started. I had to shorten it some for sure!

  • @stevescott9474
    @stevescott9474 ปีที่แล้ว

    Likewise my first HF antenna. Still don't have it permanently up but got one end out to a nearby tree. Good results on the 40/20/15/10m bands and found it will tune on 17m. Wound up taking nearly 6' off. Having a ball w/FT8 and FT4.

  • @jeremyweber1610
    @jeremyweber1610 ปีที่แล้ว

    Appreciate all you do for ham radio enthusiasts. I'm concerned about your shortness of breath. Hope you stay healthy.

    • @davecasler
      @davecasler  ปีที่แล้ว +2

      Asthma, under a doctor's supervision.

    • @koroba01
      @koroba01 9 หลายเดือนก่อน

      ⁠@@davecasler…you are at altitude as well, that does not help for asthma. Great video, studying installation videos as I am considering purchasing a 20 meter end-fed (want 40 multi-band but cannot due to space restrictions); this to augment my Comet CHA-250 HD vertical, end-fed should be better for Europe DX (I am in Florida). My main rig is a FT-710 AESS. de KF6TSD

  • @weshawkins7165
    @weshawkins7165 ปีที่แล้ว

    Very interesting video Dave. I just built that same antenna and have been listening to hf until I can pass my general test. My SWR was very close to yours without any tuning. I put a tuner in line and got the SWR’s all down to around 1.2 to 1.

  • @ericdee6802
    @ericdee6802 ปีที่แล้ว

    You can put up a Rhombic with that ammount of property....Eric said
    By golly you just gave me a wonderfull idea, I'll get started on the blue prints...Dave replied!😏👍

  • @ku4uv
    @ku4uv ปีที่แล้ว

    I built my ARRL EFHW last December. I haven't gotten around to properly testing it or putting it on the air yet. I plan to use it this year on Field Day.

  • @DonDegidio
    @DonDegidio ปีที่แล้ว

    Hi Dave,
    Another fine testing video. May I suggest, since the trouble you had with your channel, you mention in the description below the title when the video was made. Your videos are now all out of order. Getting a notification of a new video upload is somewhat useless when you are uploading older videos to the channel. You and Loretta stay safe. 73 WJ3U

  • @opticalman1jeffkeokro741
    @opticalman1jeffkeokro741 ปีที่แล้ว +1

    Great video Dave, lovely area you live in. Just one question the structure that is behind you at the start of the video, is that you guest cottage????

  • @kb9liq
    @kb9liq ปีที่แล้ว +2

    Perfect weather here to work on antennas, just nobody around to help. And my health is getting to were I just can not do that much any more

    • @TheBernieWalsh
      @TheBernieWalsh ปีที่แล้ว

      Same here Ben. I understand the situation. Good luck with finding help

    • @brvfd822
      @brvfd822 ปีที่แล้ว

      We’ve been waiting all winter to find the right time to do our antenna work. It seems when we have time, it’s either rainy and cold or the wind is blowing 70mph.

  • @cousinvinnie2180
    @cousinvinnie2180 ปีที่แล้ว +3

    Dave you going to make it? Lots of huffing and puffing....

    • @davecasler
      @davecasler  ปีที่แล้ว

      Asthma, under a doctor's care.

  • @charlieoscar09
    @charlieoscar09 ปีที่แล้ว

    Great video this.The Flag pole just needs a Flag 😊

  • @KR8T
    @KR8T ปีที่แล้ว

    Antenna reviews should have on air comparison to your standard antenna.

  • @n0vty873
    @n0vty873 ปีที่แล้ว

    I had to lower my feed point to bring the swr down. and got it down to a 1.1 to a 1.5 on most bands.

  • @ramonbennett8416
    @ramonbennett8416 ปีที่แล้ว

    Nice job, I have mine from ARRL sitting in the order que. waiting to pull the trigger. But I don’t have a lot of space , so it might be just a field antenna.
    All the best and good health.
    KN6JHC

  • @Philip-KA4KOE
    @Philip-KA4KOE ปีที่แล้ว

    Just subscribed!

  • @1shARyn3
    @1shARyn3 ปีที่แล้ว

    Should tie a SheetBend vs double overhands

    • @davecasler
      @davecasler  ปีที่แล้ว

      I can barely tie a square knot!

  • @bpeacehelotes
    @bpeacehelotes ปีที่แล้ว

    What was your final wire length you used on this video?

  • @JayN4GO
    @JayN4GO ปีที่แล้ว +1

    Copd? Pulmonary disease?

    • @davecasler
      @davecasler  ปีที่แล้ว

      Asthma, under a doctor's care.

  • @ipklondonuk
    @ipklondonuk ปีที่แล้ว

    Hi Dave, who does the property belong to behind you?

    • @davecasler
      @davecasler  ปีที่แล้ว +1

      Behind me is Billy Creek State Wildlife Area. Mt Sneffels, elev.14,150 ft, is in the distance.

  • @ku4uv
    @ku4uv ปีที่แล้ว

    What about counterpoise and counterpoise length?

    • @view05nys
      @view05nys ปีที่แล้ว

      He stated in the video that the length of the coax cable will serve as the counterpoise.

  • @geirha75
    @geirha75 ปีที่แล้ว

    Is there a way to measure impedance EFHW? Given that no transformer is between the TX/RX and the EFHW?

    • @NgakpaW
      @NgakpaW ปีที่แล้ว

      I am confused by the question. There is a 49:1 transformer (un-un) between the coax and antenna.

    • @geirha75
      @geirha75 ปีที่แล้ว

      @@NgakpaW Let me clarify. Imagine having no un-un or transformer between efhw and tx/tx ( test only setup ). We know that 50 ohm does not match efhw impedance. And we know the impedance skyrockets when we feed dipole antenna from one end. But is there a way to measure it's impedance at the end? How much is it in real time/real life? By measuring it.

    • @tmiller9099
      @tmiller9099 ปีที่แล้ว +1

      Couldn't you measure the impedence with the 49:1 inline and then multiply your reading by 49 to calculate what the impedence is on the antenna side?

  • @presidentspilot
    @presidentspilot ปีที่แล้ว +1

    Dave!! Do us ALL a VITAL FAVOR, OK?!! PLEASE,...do not allow your weight to continue to get out of control!! I WAS THERE, BROTHER, and I KNOW HOW YOUR BREATHING IS AS MINE WAS!!! PLEASE!! That extra weight is causing a compression on your lungs, cutting-down on the amount of your useable lung capacity. We all love you, and your shortness of breath worries us ALL out here, a lot!! You are the VERY BEST, ..BUT for how long? We would ALL BE DEVISTATED if we lost you to some simple, solvable problem!! PLEASE LOSE THE WEIGHT, DAVE!! GOD BLESS!! ..Ron K

  • @nazairetetreault2664
    @nazairetetreault2664 11 หลายเดือนก่อน

    Why not try an tune better

  • @glenmartin2437
    @glenmartin2437 ปีที่แล้ว

    Liked this video, so I am viewing it again. N0QFT

  • @democratpro
    @democratpro ปีที่แล้ว +1

    Stop eating!