Results 1 to 9 of 9

Thread: Flying flag from VHF Antenna

  1. #1
    Member mbarth's Avatar
    Join Date
    Jun 2013
    Location
    Homer, AK
    Posts
    73

    Default Flying flag from VHF Antenna

    I'm wanting to fly a 12"x18" flag and was thinking of securing it to the VHF antenna. I don't know if this would effect radio transmission/reception. I would like to hear some opinions on whether this is a good or bad idea...

    If I do mount to antenna, I was thinking of using a mount like this:
    5102AND64BL._SX425_.jpg

  2. #2
    Member
    Join Date
    Apr 2006
    Location
    Anchorage
    Posts
    3,246

    Default

    I can't tell a lot from the picture. I would think the added stress would eventually break the antenna. Until that happen you won't have any problems.

  3. #3
    Supporting Member iofthetaiga's Avatar
    Join Date
    Oct 2009
    Location
    Tanana Valley AK
    Posts
    7,218

    Default

    +1 to MacGyver's statement. Not likely to have noticeable affect on reception/transmission, but likely to hasten mechanical damage and failure.
    ...he who knows nothing is nearer to truth than he whose mind is filled with falsehoods & errors. ~Thomas Jefferson
    I would rather have a mind opened by wonder than one closed by belief. ~Gerry Spence
    The last thing Alaska needs is another bigot. ~member Catch It
    #Resist

  4. #4
    Sponsor potbuilder's Avatar
    Join Date
    Apr 2006
    Location
    Palmer
    Posts
    4,231

    Default

    tie it on to the stick and keep it low close to the mount and i don't think you'll have any problems.

    Alaska Shrimp Pots

    Rigid & Folding Shrimp & Crab Pots
    Electra Dyne Pot Haulers
    Ropes, Buoys, Bait
    alaskashrimppots.com
    akshrimppots@mtaonline.net
    907 775 1692

  5. #5
    Member
    Join Date
    Jun 2010
    Location
    Anchorage
    Posts
    2,587

    Default

    You're getting good advice here. A composite type antenna is the best to use for this purpose as well as they tend to be more rigid than a stainless steel whip. As for RF conductance, that flag and zip tie will be completely invisible to the RF.

    One thing you might do is look up the specs on your antenna. Every antenna has a maximum wind load rating in lbs per sq ft of antenna surface that equals out to x miles per hour of wind speed before failure, and this is largely based on the size of the antenna element. (Most big, directional antennas are in the 70 mph range, so I bet yours is at least that much.) That might give you an idea of the relative physical strength of your antenna, but you can also get a rough idea at least of how much effect that flag is having on your antenna. (And yes, flying it higher will cause my leverage etc etc.) 12x18 isn't very big.

    73's

  6. #6
    Member
    Join Date
    May 2014
    Location
    Talkeetna
    Posts
    28

    Default

    I used to run a 25 foot commercial assistance tow boat here in Florida, with a flag on each antenna. Secured by zip-ties and tape. Guessing they were just about 12x18 also. Put 800 hours a year on that boat running up to 40 knts. The only problem I had was the flags would need to be replaced after only a few months. The sun and wind would have them shreaded quickly. It will not affect your transmission or reception.

  7. #7
    Member mbarth's Avatar
    Join Date
    Jun 2013
    Location
    Homer, AK
    Posts
    73

    Default

    Thanks for the advice! I think I'm going to give it a shot. If my antenna breaks in half, I'll be sure to let everybody know

  8. #8
    Supporting Member iofthetaiga's Avatar
    Join Date
    Oct 2009
    Location
    Tanana Valley AK
    Posts
    7,218

    Default

    Quote Originally Posted by mbarth View Post
    If my antenna breaks in half, I'll be sure to let everybody know
    Sure. And if you need any assistance, just give us a call...on the...uh...well....just yell real loud.
    ...he who knows nothing is nearer to truth than he whose mind is filled with falsehoods & errors. ~Thomas Jefferson
    I would rather have a mind opened by wonder than one closed by belief. ~Gerry Spence
    The last thing Alaska needs is another bigot. ~member Catch It
    #Resist

  9. #9
    Member mbarth's Avatar
    Join Date
    Jun 2013
    Location
    Homer, AK
    Posts
    73

    Default

    Quote Originally Posted by iofthetaiga View Post
    Sure. And if you need any assistance, just give us a call...on the...uh...well....just yell real loud.
    I also carry a handheld VHF and an aviation radio, so I'm sure I'll be able to get help if I need it. Nice one though

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •