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multiple frequencies on one antenna

 
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multiple frequencies on one antenna
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PSK
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Joined: 11 Jun 2010
Posts: 1

Post multiple frequencies on one antenna Reply with quote
Is it possible to combine 6 FM frequencies on one antenna? Can I reach some sort of compromise with an antenna the does not require tuning? Don't need much in range, just about 200 meters. TIA!
Fri Jun 11, 2010 6:51 am View user's profile Send private message
intertech
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Joined: 15 Mar 2006
Posts: 24
Location: Chicago USA

Post Reply with quote
Injecting multiple frequencies into a single antenna is possible by using a FM Star Point Combiner, these are expensive units and cost is determined by the power level but for a 6 way low power options expect to pay around 10,000 - 20,000 plus Euro but price is decided when the manufacturer receives exact information about installation.

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Fri Jun 11, 2010 7:15 pm View user's profile Send private message Visit poster's website
pcs
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Joined: 18 Jan 2002
Posts: 2919
Location: Radio Land
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Post Reply with quote
You can try this one:
http://www.pcs-electronics.com/multiple-transmitter-combiners-p-1320.html

It is big and bulky and not cheap.

But for such small power/range (10-100mW or so) I'd try these cheap combiners:
http://www.pcs-electronics.com/1000w-teflon-splittercombiner-p-1198.html
You'll have to use several to get to 4 ports.

Let me know how it goes, I am curious about the results.

M

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Sun Jun 13, 2010 1:15 am View user's profile Send private message Visit poster's website
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