Palstar AT-500 Technical Manual

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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. AT-500 600 Watt Antenna Tuner l 600 W PEP SSB, 500 W CW l 160 m to 6m l Diferential capacitor with 6:1 vernier drive l Dual movement cross needle meter l 5.5” H x 10” W x 11.3” D 9676 N. Looney

l ME TERING:

D ual movement cross-needle power and frequenc y compensated coupler l INPUT & ANTENNA TUNING: Var iable capacitor 360-14-360pF 2.5 kV with 6:1 Ver nier Dr ive l INDUCTANCE: 15 μH roller induc tor ; 12 ga. wire wound on steatite ceramic core, plated bar and wheel, fxed 15 μh coil relay switched l ANTENNA SELEC TOR SWITCH: 6 position: Coax 1 -

Carefully remove the AT-500 from the shipping car ton

and inspec t it for signs of damage. I f any damage is apparent, notify the transpor tation car r ier or dealer immediately. KEEP THE PACKING C ARTON for moving, storing, or reshipping the tuner to us for repair if required. LOC ATION S elec t a location for the AT-500 that allows the connec tor

FRONT PANEL DESCRIPTION

1. POWER/SWR METER Dual needle meter displays FORWARD and REFLECTED power in watts. SWR is measured where the two needles intersect on the red scale. SWR is printed on meter face. 2. PEAK HOLD Select to read Peak Hold on the SWR meter. Peak switch [3] must be in PEAK position. 3. PEAK Selects between PEAK and AVERAGE power mete