J Pole fire hazard ? (wife made me ask)

Discussion in 'Antennas, Feedlines, Towers & Rotors' started by KN4HZJ, Dec 6, 2017.

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  1. NH7RO

    NH7RO Ham Member QRZ Page

    Aha! That's why the OP's wife had to ask!

    I must amend my earlier statement to read: "A J-pole is both a common-mode hazard and a fire hazard.":eek:
    KC8VWM likes this.
  2. WB5YUZ

    WB5YUZ Ham Member QRZ Page

    And end-fed random wires, which they call "end-fed long wires."
    KC9VFO, KS4W, KC8VWM and 1 other person like this.
  3. NH7RO

    NH7RO Ham Member QRZ Page

    You read my mind, Dan!
  4. KC8VWM

    KC8VWM Moderator Volunteer Moderator QRZ Page

    I mean, I am a ham and have never heard of a copper pipe J-pole catching something on fire before, so where do people get this stuff from?

    No really.. where is this kind of information coming from?

    If I wasn't a ham and seen a J-pole for the first time, the very last thing I would start thinking about is it catching other things on fire. Lol.
    Last edited: Dec 7, 2017
    KC9VFO and NH7RO like this.
  5. WF4W

    WF4W Ham Member QRZ Page

    my great grandma was afraid of the remote control. She thought the laser would catch her house on fire. . .
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  6. AI0K

    AI0K Ham Member QRZ Page

    Keep the J-Pole and ditch the XYL. :)

    Jerry, AI0K
  7. KQ0J

    KQ0J XML Subscriber QRZ Page

    W7UUU sez: " Not sure why J-Poles are so popular - they're not a very good antenna compared to a ground plane."

    Well my personal experience is I took a 1/4 W 2M Ground Plane down and replaced it with an Arrow J-pole. I took S meter readings on a dozen repeaters, 5 weather stations on 162.XX and then swapped antennas and took the same readings - maybe 5 minutes later. Every single station came in with a significantly stronger reading on the j-pole. I am not sure if you are quoting some theoretical gain, but in reality, my experience has been different. And its dual band as well.
    W7ADC and WG8Z like this.
  8. WB5YUZ

    WB5YUZ Ham Member QRZ Page

    James Thurber wrote he had a grandmother who would run out of the house every time a light bulb broke in a socket, because she thought the house would fill up with electricity and explode.
    NH7RO likes this.
  9. NH7RO

    NH7RO Ham Member QRZ Page

    Wow! Exactly the same reason I switched over to all LED lighting in my house, too!
  10. W7UUU

    W7UUU QRZ Lifetime Member #133 Life Member Platinum Subscriber QRZ Page

    Ditch the J-Pole, ditch the XYL, and get a phased array at 70 feet ... on all bands :rolleyes:

    AI0K and NH7RO like this.

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