[Antennas] Hustler 5-BTV Trap Vertical - New Install

[CBoone@Earthlink.Net]

Don Schaefer wrote:
> 
> I could use some of the expert help from you list members.  I am doing a
> new install of a Hustler 5-BTV Trap
> Vertical antenna, and this brings up two questions.
> 
> 1:  How to decouple the transmission line.  The set up sheet indicates
> that since the shield of the RG-8X is attached
> to the same place that you would attach radials, that the shield will
> act as a radial.  Hustler would like for you to put
> a 6" diameter coil of the transmission line with in 8' of the attach
> point, and also another like coil with in 8' of the
> connection point to the transmitter in this cast a I-com IC-718.   I
> have been told that ferrite beads added to the line
> up to a  12" in length will do the same thing.  Is this true?  If this
> is true would EMI shield beads like ones I have found in the Newark
> parts catalogue p part number  91F6484 do the job?

Don, you can do one of two things: See if Radio Shack has the size of
snap on beads that will fit...and use them ....OR just wind a choke
out of the coax at the base of the antenna....SEVERAL turns of the 
8X will make a choke...use a small round can (coffee or Quaker Oats)
and wind 6-8 turns....tape it up so it stays wound and that should do

> 3:  Would there be any problem attaching a PL-259 connector in a weather
> proof box on the base of the antenna
> to make it easier to change the transmission line and also to make sure
> that I can keep moisture out of the
> coaxial cable?

A PL259 will not cause any problems...but good weatherproofing will
work just fine....always try to connect cables at horiz points..that
way water wont have a place to stand and ingress into the joint..

> I am not the sharpest tack in the box so kind of speak english when you
> give me suggestions.  Thanking you list members in advance for any help
> you could give.
> 
> 73
> Don Schaefer
> Communication Specialist

Based on your own words, I would delete the last line of your
signature......


Chris
WB5ITT
ARRL Technical Specialist