(servicing) instructions in the repair or replacement of the prod- literature accompanying the appliance. uct; at its option at the Palstar NOTE: WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. DO NOT factory in Piqua, OH.
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Note: These adjustments control the calibration and accuracy of the 14. Power Lines—An outside antenna sys- technician to restore the product to its normal AT4K metering. Do not adjust unless you are sure the metering is tem should not be located in the vicinity of operation.
Specifications Table of Contents Front Panel Indicators and Controls Thank you for purchasing a Palstar AT4K Antenna Tuner. This antenna tuner has been designed and manufactured to high qual- Metering Dual movement cross needle power and frequency ity standards, and will provide reliable operation for many years.
Ω load @3.5Mhz can provide unbalanced or bal- If you hear a spitting sound while anced output. Integrated into the AT4K is a Ant Cap Inductor Voltage Loss tuning your AT4K at high power, frequency compensated, lighted you are probably tuning into an imp- 100 pF 11.7 H...
Be sure to write down the new settings for future Location For a balanced feed antenna, use with that antenna Select a location for the AT4K connect a balanced feedline to that allows the connectors to be the white BALANCED OUTPUT 5.
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BE APPROACHED WITH EXTRA CAUTION, ESPECIALLY WHEN YOU ARE GOING TO USE HIGH POWER. THE USE OF AN RF ANALYZER (E.G. A PALSTAR ZM-30 AN- TENNA ANALYZER) WOULD BE ADVISABLE TO MEAS- URE AND UNDERSTAND THE KIND OF LOAD YOU ARE ATTEMPTING TO USE.
Front Panel Description Operating Your AT4K 4. Set POWER RANGE switch to 300 W (Power Range Me- 3 4 5 6 ter Switch button OUT). 5. Set OUPUT SELECTOR switch to 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).
TUNED COAX 1 Selects COAX 1 connector through the CAUTION — Before Operating impedance matching T circuit. 1. To avoid possible damage to the AT4K set INPUT, OUT- e. TUNED COAX 2 Selects COAX 2 connector through the PUT, and INDUCTOR controls as outlined in the chart be- tuner matching T circuit.
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