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HFT-1500 Digital Antenna Tuner with Roller Inductor

Owner's Manual

11

SCHEMATIC DIAGRAM

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Summary of Contents for HFT-1500

Page 1: ...ANEL CONNECTORS 1 OTHER 2 CONTOLS CONNECTORS 2 FRONT PANEL FUNCTIONS 2 REAR PANEL CONNECTORS 4 INSTALLATION 5 INSTALLATION PROCEDURES 5 BEFORE OPERATION 5 TUNING 6 USING THE BARGRAPH 7 NOTES 8 TECHNIC...

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Page 3: ...justments SPECIFICATIONS FRONT PANEL INDICATORS AND CONTROLS Meter Dual movement D Arsonval lighted cross needle Power and SWR meter RF directional coupler sensing head for the internal wattmeter circ...

Page 4: ...e End Fed Wire High voltage Derlin terminal post OTHER Frequency Coverage 1 8 30 MHz continuously tunable Power Maximum 1000 Watts single tone continuous 2 kW PEP SSB Dimensions 5 5 140 mm H x 12 5 31...

Page 5: ...RE BAL selects the END FED WIRE connector through the impedance matching circuit For balanced antennas the wire antenna post is externally connected to the balanced line 5 INDUCTOR 28 uH continuously...

Page 6: ...ial connector for output to dummy load or third coax output Bypasses tuner but meter circuits and digital bargraph remain active if AC adapter is connected to the jack located on the rear panel 5 GROU...

Page 7: ...ngle tone through the tuner 2 Connect coax cable s from your antenna to COAX 1 or COAX 2 connectors on the rear panel These connectors are either direct from the transmitter or through the tuned circu...

Page 8: ...ter to a low power output If your transmitter has a TUNE position select that position 4 If you use a linear amplifier set it to STANDBY Do not use the linear amplifier until the HFT 1500 is tuned WAR...

Page 9: ...r cross needle meter is reading 100 Watts as indicated in 2 rotate LEVEL control so that the last LED red illuminates This signifies that the 100 Watt average single tone reading on the cross needle m...

Page 10: ...nt antenna is connected it is necessary to repeat the tuning procedure for each antenna TECHNICAL ASSISTANCE If you have any problem with this unit first check the appropriate section of this manual I...

Page 11: ...Select the 300 W range button and zero the two meters using a small slot screwdriver Apply 100W of RF at 7 0 MHz from the receiver By adjusting the trimmer capacitor closest to the rear panel null the...

Page 12: ...nnections on RF INPUT and COAX 1 Select the 300 watt range on the RANGE button apply 100 Watts of RF power at 7 0 MHz and adjust R2 for a forward reading on 100 Watts Select the 3000 Watt range apply...

Page 13: ...HFT 1500 Digital Antenna Tuner with Roller Inductor Owner s Manual 11 SCHEMATIC DIAGRAM...

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