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Two antennas on one scanner?

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iris

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Joined
Jun 24, 2006
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I have been tinkering with my scanner for a few years but by no means gotten the hang of antennas.

Is it possible to connect two antennas that are tuned to different frequency ranges to one scanner (uniden 780) for better reception across both ranges?

If so where would i find an adapter to do it with?

Thanks in advance for the advice.
 

JohnWayne

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Apr 15, 2004
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You certainly can. The best way is to use a diplexer designed for your desired frequency ranges. Companies such as Diamond, Comet, and MFJ make them, and they generally run from $25 to $100. What two frequency ranges are you wanting to monitor?

Jeff
 

RISC777

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Oct 19, 2005
Messages
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iris said:
I have been tinkering with my scanner for a few years but by no means gotten the hang of antennas.

Is it possible to connect two antennas that are tuned to different frequency ranges to one scanner (uniden 780) for better reception across both ranges?

If so where would i find an adapter to do it with?
Some reference materials for you:

http://www.radioreference.com/forums/showthread.php?t=36757&highlight=antennas

http://www.radioreference.com/forums/showthread.php?t=36223&highlight=antennas

http://www.radioreference.com/forums/showthread.php?t=28994&highlight=antennas

http://www.radioreference.com/forums/showthread.php?t=29038&highlight=antennas
 

Chris0381

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Joined
May 12, 2006
Messages
167
Actually they have connectors for this a simple 1 BNC female to 2 BNC males for about $7 at cables and connectors in CT or many other places.

Now do the signals from the 2 antennas cance each other and cause problems ?
 
N

N_Jay

Guest
Chris0381 said:
Now do the signals from the 2 antennas cancel each other and cause problems ?
They can!

When you "Y" two antenna together you are building a RF network.
Since most people do not have the tools to analysis it you are basically relying on a RANDOM network. As such you will likely get RANDOM results.

Some signals will add, some will cancel, some will vary by frequency, some will vary by direction.
 
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