800 Mhz scanner antena

800 Mhz scanner antena

Post by Tom » Wed, 08 Jan 1997 04:00:00

I am getting an 800mhz scanner and am particularly interested in
listening to 800mhz frequencies.  I was wondering what a good antenna
would be.  I am particularly looking for a local store in South Saint
Louis (such as Radio Shack).  If anyone has suggestions or can tell me
how to get a catalog of scanner antennas, please email me at:

I don't always get the Usenet groups, so please email me!

                                        Thanks,

                                        Tom Skillman

                                        http://www.galilei.com/tskill

 
 
 

800 Mhz scanner antena

Post by Bob Whit » Fri, 10 Jan 1997 04:00:00



> I am getting an 800mhz scanner and am particularly interested in
> listening to 800mhz frequencies.  I was wondering what a good antenna
> would be.  I am particularly looking for a local store in South Saint
> Louis (such as Radio Shack).  If anyone has suggestions or can tell me
> how to get a catalog of scanner antennas, please email me at:


A co-linear antenna might be a good choice for these frequencies.  These
can be made inexpensively by stacking 1/4 wavelength sections of coax in
a manner
that the phases add together.  You can get pretty high gains with these,
depending
on the number of sections.

I am fairly sure that the ARRL antenna book has this design.

 
 
 

800 Mhz scanner antena

Post by Andy Mos » Sun, 12 Jan 1997 04:00:00



> > I am getting an 800mhz scanner and am particularly interested in
> > listening to 800mhz frequencies.  I was wondering what a good antenna
> > would be.  I am particularly looking for a local store in South Saint
> > Louis (such as Radio Shack).  If anyone has suggestions or can tell me
> > how to get a catalog of scanner antennas, please email me at:

> A co-linear antenna might be a good choice for these frequencies.  These
> can be made inexpensively by stacking 1/4 wavelength sections of coax in
> a manner
> that the phases add together.  You can get pretty high gains with these,
> depending
> on the number of sections.

> I am fairly sure that the ARRL antenna book has this design.

I'm having trouble envisioning this, Bob.

It doesn't say if he wanted a base antenna or wanted to go mobile.  In
the case of mobile I would recommend the Radio Shack Elevated-feed 5/8
over 1/4 wave Cellular antenna.  I've used mine for about five years and
it still works like a champ.

As far as base goes, the trick is more to keep the coaxial cable as
short as possible and to use low-loss coax like Belden 9913 - or
better.  A discone is a good all round antenna but even the RS antenna
above stuck on a tower will outperform it on 800MHz.  

--
Andy Moss
"I often fantasize about my inability to daydream....."