Palstar AT1KD Operation Manual Download Page 4

5. Set RANGE switch to 300 W (button out)

6. Set the DIRECT/TUNED mode switch to BYPASS or the position matching

your antenna connection.  To tune your antenna, the switch selection 
must be set to: COAX 1 TUNED, COAX 2 TUNED or WIRE (BALANCED
ANTENNA).  Selecting COAX 1 DIRECT, COAX 2 DIRECT or BYPASS 
bypasses the tuning section.

7. Rotate the INPUT, ANTENNA and INDUCTOR controls for maximum 

noise or signal as heard on your receiver.Reter to preset tuning chart on
page 5

8. Key your transmitter and adjust the power level for a reading of 50-100 

watts on the FORWARD scale.  Adjust the INPUT, ANTENNA and 
INDUCTOR controls for a minimum REFLECTED reading while maintaining
a FORWARD reading of 50-100 watts using your transmitter power 
control.

9. Read the SWR on the red scale at the point where the two needles 

intersect. Repeat step eight until the lowest SWR reading is obtained.  
The SWR should be 2:1 or lower.

NOTE: THIS PROCEDURE TAKES PATIENCE THE FIRST TIME.  THE
INPUT AND ANTENNA CONTROLS VARY THE CAPACITORS AND
PROVIDE FINE ADJUSTMENTS.  THE ROLLER INDUCTOR CRANK
CONTROL PROVIDES COARSE ADJUSTMENT.

10. When you have tuned your antenna to the best SWR, record the settings

of the INPUT, ANTENNA and INDUCTANCE controls on the chart on the
previous page for future reference.  When you retune, use these settings
as your starting point.

6. Notes

1. An SWR of 1:1 is best, but an SWR as high as 2:1 may be acceptable.  
Check your transmitter manual for details.

2. If you cannot get an acceptable SWR, lengthen or shorten your antenna

and/or feedlines and retune.

3. If you get low SWR readings at more than one setting, use the setting

that gives:

• The highest FORWARD power reading
• The lowest REFLECTED power reading
• Uses the largest capacitance (highest number) on the
  INPUT and ANTENNA controls.

4. Once every 4-6 months clean the roller coil with 70% isopropyl alcohol 

and a clean cotton cloth.  Do not transfer any of the conducting grease 
on the rod that guides the roller wheel as this will contaminate the windings
on the roller coil body.

5. Any time a new or different antenna is connected, it is necessary to repeat

the tuning procedure for each antenna. Happy Tuning!

6

1. A brief note describing the defect should be included with each
unit being returned.

2. Returned equipment found to be out of warranty will be held
pending customer authorization to handle the equipment as an
out of warranty repair.

3. Out of warranty repairs will be billed at a rate of $25 per hour
plus cost of replaced parts.

LIMITED WARRANTY

Palstar Inc. warrants all products manufactured by it to be free from
defects in material and workmanship under normal use and service for
a period of one (1) year from the date of delivery to the first buyer (the
“Warranty Period”).

Palstar Inc's obligation under this warranty is limited to repair or
replacement of the product; at its option at the Palstar factory in Piqua,
Ohio.  Effective only when the product is returned to the factory with all
transportation charges prepaid and examination of the product discloses
in Palstar's judgment, to have been defective during the Warranty Period.
 The Warranty Period shall not extend beyond its original term with
respect to interim in-warranty repairs by Palstar.  This Warranty Period
shall not apply to any product which has been repaired or altered by
anyone other than Palstar without prior written authorization.  Warranty
does not extend to any products which have been subject to damage
from natural causes such as lightning, fire and other catastrophes.
Warranty does not cover damage from improper installation, application
or maintenance in accordance with the operating specification.  Palstar
neither assumes nor authorizes any person to assume for it any obligation
or liability other than herein stated.

9676 N. Looney Rd., Piqua, OH 45356

Tel: (937)-773-6255  Fax: (937)-773-8003

800-773-7931

www.palstar.com

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