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Author Topic: Spring for hamstick?  (Read 4454 times)
KD5FX
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Posts: 42




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« on: July 26, 2016, 06:53:21 PM »

Just mounted a new HF/VHF/UHF radio in the SUV and I have a hamstick mount on the lip of the rear hatch about halfway down. It clips the trees once in awhile, I'm thinking I may need a spring to keep it from ripping the mount off the hatch. Anybody run into this before and what spring did you use?
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KK4YDR
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Posts: 673




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« Reply #1 on: July 26, 2016, 07:12:52 PM »

hustler makes a good stainless spring. I would start there. But remember after adding spring you will need to tune the antenna again as you just made it longer thus lowering your center frequency substantially in most cases.
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W8JX
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Posts: 13268




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« Reply #2 on: July 27, 2016, 04:27:26 AM »

hustler makes a good stainless spring. I would start there. But remember after adding spring you will need to tune the antenna again as you just made it longer thus lowering your center frequency substantially in most cases.

Good tip on both counts. Myself I have used Hamsticks on bumper mounts for over 20 years. I have never used a spring. Also I would gusset (add plates of metal) to both sides of hatch seam where mount is attached to strengthen it because even with a spring you will be placing a lot of torque on that mount where it attaches to car.
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--------------------------------------
Ham since 1969....  Old School 20wpm REAL Extra Class..
KF9ZA
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Posts: 50


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« Reply #3 on: July 30, 2016, 06:37:29 AM »

I have a hamstick mount on the roof of my SUV.  First time around I got a spring I didn't check the online listing to see if it was stainless steel.  It rusted.  Second spring was stainless. 

http://kf9za.kremer.com/images/xterra_rear.jpg

http://kf9za.kremer.com/images/xterra_bracket.JPG
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ONAIR
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Posts: 3716




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« Reply #4 on: July 30, 2016, 11:19:10 AM »

I have a hamstick mount on the roof of my SUV.  First time around I got a spring I didn't check the online listing to see if it was stainless steel.  It rusted.  Second spring was stainless. 

http://kf9za.kremer.com/images/xterra_rear.jpg

http://kf9za.kremer.com/images/xterra_bracket.JPG

   Good tip!  What was the effect of the springs on tuning?
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KF9ZA
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« Reply #5 on: July 30, 2016, 12:11:56 PM »

I use an IT-100 tuner, so I tune up each time before I transmit
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AC4RD
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Posts: 1485




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« Reply #6 on: August 01, 2016, 04:59:07 PM »

hustler makes a good stainless spring. I would start there. But remember after adding spring you will need to tune the antenna again

Two thumbs up on the advice from KK4YDR! 
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