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Author Topic: Antenna tuner  (Read 428 times)
CPRATCH
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Posts: 31




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« on: April 09, 2007, 08:36:50 AM »

I will be gettibg a 857D soon and i was wondering if an antenna tuner could be used so that I could use one antenna for all bands? Antenna will be a Wilson 5000. Thanks. 73s.
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K0BG
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Posts: 9879


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« Reply #1 on: April 09, 2007, 11:25:42 AM »

Not with your average HF mobile antenna you can't.

The voltages can be very high, in the neighborhood of 10 KV even at low power levels. If you try this with a hamstick or Hustler, you'll end up arcing over the coils.

If you go to my web site and look under Auto Couplers, all of the data you need is there.

Alan, KØBG
www.k0bg.com
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KB0USY
Member

Posts: 32




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« Reply #2 on: May 15, 2007, 11:27:12 AM »

Sound like this new 857d will be used on 11 meters with Wilson 5000.Hope not!!
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KE6TNN
Member

Posts: 6




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« Reply #3 on: July 03, 2007, 09:52:56 AM »

While this will be no surprise to k0bg, my FT-857 using a LDG auto-tuner will only increase the bandwidth of the monoband verticals that I use on my truck.

Even then, having the tuner is only really useful on 40 meters on down.  
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