Vectronics HFT-1500 - Manual (Page 5)

HFT-1500 Digital Antenna Tuner with Roller Inductor Owner's Manual
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The SWR in measured where the two needles intersect on the red scale.
3. ANTENNA
Continuously adjustable output capacitor.
4. DIRECT-TUNED MODE SWITCH
Six-position rotary switch an output coaxial connector.
1. DIRECT BYPASS selects BYPASS COAX connector bypassing the impedance
matching circuit but providing SWR, FORWARD, and REFLECTED power meter
readings.
2. DIRECT COAX 1 selects the COAX 1 connector bypassing the impedance
matching circuit but providing SWR, FORWARD, and REFLECTED meter
readings.
3. DIRECT COAX 2 selects the COAX 2 connector bypassing the impedance
matching circuit but providing SWR, FORWARD, and REFLECTED meter
readings.
4. TUNED COAX 1 selects the COAX 1 connector through the impedance matching
circuit.
5. TUNED COAX 2 selects the COAX 2 connector through the impedance matching
circuit.
6. TUNED WIRE/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 variable Derlin roller inductor driven by a crank handle. A gear-
driven precision mechanical counter is coupled to the crank handle.
6. RANGE SWITCH
Two-position push button switch selects the range (300w or 3kW) of FOWARD and
REFLECTED Power displayed on the power meter.
When the METER button is out, the FOWARD meter scale reads 300 watts full scale
and the REFLECTED meter scale reads 60 watts full scale. When the METER button
is in, the FOWARD meter scale reads 3000 watts full scale and the REFLECTED
meter scale reads 600 watts full scale.
7. LAMP
A two position switch selects whether the meter is illuminated.
8. DIGITAL BARGRAPH DISPLAY
A 21 digit LED bargraph which display is capable of responding to SSB signals or
CW. The sensitivity of the display is controlled by the LEVEL control on the front
panel. The delay of the SSB signal is continuously variable by the DELAY control.