Palstar AT4K Technical Manual Download

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Palstar products are designed by
Hams for Hams carrying on the
Palstar tradition for high-quality
products designed and
manufactured in Ohio, USA.

AT4K 2500 Watt

Antenna Tuner



2500 W single tone, low loss, wide Z range



160m to 15m



Custom variable capacitors and inductor



Dual movement cross needle meter



6.5” x 15” x 16”

9676 N. Looney Rd,
Piqua, OH 45356 USA
(937) 773-6255
(800) 773-7931
(937) 773-8003 (Fax)
www.palstar.com

PALSTAR

AT4K 2500 Watt Antenna Tuner

Technical Manual

Designed and Manufactured in the USA

PALSTAR

Summary of Contents for AT4K

Page 1: ...na Tuner 2500 W single tone low loss wide Z range 160m to 15m Customvariablecapacitorsandinductor Dual movement cross needle meter 6 5 x 15 x 16 9676 N Looney Rd Piqua OH 45356 USA 937 773 6255 800 77...

Page 2: ...ed Aluminium AT4K SPECIFICATIONS Page 2 PALSTAR The Palstar AT4K Antenna Tuner is an American made impedance matching network that can provide unbalanced and balanced ouput with a power rating of 2500...

Page 3: ...mitter to the linear amplifier input and the linear amplifier output to the AT4K DO N OT USE MO R E T HAN 3500 WAT TS single tone co ntinuous t hrough t he tuner INSTALLATION Page 3 To 12 13 8v Power...

Page 4: ...ion rotary switch selects an output coaxial connector a DIRECT BYPASS selects BYPASS COAX CONNECTOR bypassing the impedance matching circuit but providing SWR FORWARD and REFLECTED power meter reading...

Page 6: ...ARD ADJUSTMENTS Reverse Low Reverse High Forward Low Forward High Peak Hold Peak Peak Low Power Range Peak High On Off PALSTAR INSIDE VIEW ROLLER INDUCTOR VARIABLE CAPACITORS COUPLER METERING ASSEMBLY...

Page 7: ...YOUR AT4K 5 S et POWER R ANGE switch to 300 W button out 6 S et the OUTPUT SELEC TOR switch to the position matching your antenna connec tion To tune your antenna the switch selec tion must be set to...

Page 8: ...Slamming the roller wheel into the mechanical end stops on either end of the roller induc tor will decrease the pressure of the wheel against the wire wound on the ceramic form To RESTORE wheel press...