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1-Insert the lower decoupling cone (the one with the brand name)into the mast
measuring the distance h2 from the topof the mast. Insert the polyethelyne disc
into the cone fom the bottom of the mast to be centered.Adjust the  clamp

Remove paint, oxid or anodized (if aluminum) and apply silicon grease to insure
a good electrical contactbetween the mast and the decoupling cones.

2-Insert the  polyethelyne disc and after insert the cone and  repeat the operation as in
the lowercone measuring the distance h1from  the top of the mast.Both cones must be
placed  with sheet  metal  unions simmetrically.

3-Pass the transmission lin RG-8or RG213 with the PL 259 through the mast and attach
to the recessed connector of upper radiator tigthening with hands.

4-Place the upper  radiator  base sleeve into the mast and tighten the three screw set.
Insert the rod into the upper radiator and  measure the distance h3  from the base of  the
lower decoupling.cone and secure the joint with  the small clamp provided .

NOTE: The  Spectral Isopole  144  is  easy to tune simply by following the dimensions
provided with the tuning chart. If an SWR meter  is available and it  is desidered to tune
to the exact frequency, simply extend  the  dimension h3  between  the  upper  radiator
and the  upper cone  equally  to decrease  the  frequency of  resonanace, and decrease
the distance h3 to increase the frequency of resonance.The  lower cone  must conserve
always the same distance to the upper cone: 65cm or 25-1/2 in.

SPECIAL RECOMMENDATIONS
*Never  turn the upper radiator. Internal parts can be broken.
*Never use pliers or force tools to adjust the connector. This procedure must be
  performed with hands.
*Never hold the antenna with hands or ropes taking it from the radiator.Perform
   this operation taking it from the bas of the connector or from under the clamp
   of the upper cone.
*Adjust the decoupling cones clamps with a reasonable torque. A poor electrical
  contact between the mast and the cones can cause noise and a poor performance
  of the antenna
                    

         Technical support on line:

 [email protected]

Warning
*
 The antenna should be  mounted  so as clear  sorrounding objects as much as possible,
       a high location  is desiderable.Be sure  to muount the antenna so it will neither  touch
   or be able to fall with power wiring.

SPECTRAL

 

 IsoPole

VHF 144

The 

SPECTRAL

 IsoPole is a Hi-Quality product and has been designed to ofer the maximum performance for the application

required.It must be mounted in a metal mast of at least 22 mm  (7/8")of internal diameter, to pass a PL-259 connector,and
no more  than 32 mm (1.25")of external diameter The minimun mast length is3 meter(10 feet) for amateur frequencies .

INSTRUCTIONS ASSEMBLY (Use gloves to avoid metal cuts)

  

Visit our website:

 www.isopole.com   or

contact us: 

[email protected]

    Amateur Frequency Chart

       Mhz         h1      h2      h3

  144 to 148   1,27    1,92    2,54

             

 *

       50    75-1/2  100

    

       Dimensions expressed in meters

           *Dimensions expressed in inches

Specification or changes without previous notice

 or obligation .  

        2000 

SPECTRAL

                                      

Handcraf

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Handcrafted in America!

ted in America!

ted in America!

ted in America!

ted in America!

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