1. Foreword
HC-1.5KAT is an HF high power auto antenna tuner with a maximum power handling
capability of 1.5kW.
It works in an auto band set mode when combined with Tokyo Hy-Power Linear amps of
HL-1.5KFX and HL-2.5KFX. Also, it features an extremely fast tuning speed of 1 sec. max.
in most cases. When the transmitter is keyed, the tuner detects the antenna impedance
(resistance and reactance) directly, and two variable capacitors are auto-adjusted so that
tuner matches the antenna impedance.
2. Features
High speed and precision tuning due to the high resolution stepping motors: Usually
less than one second of tuning time and auto tracking (re-tune) during on air.
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Auto band-set operation with Tokyo Hy-Power HL-1.5KFX and HL-2.5KFX amps: Our
original inter-face design for a combined auto operation.
Linear amps other than those two models can be combined, if band set only is manually
made.
Simple operation: Auto tunes even with ssb/voice as well as keyed codes.
During the auto-tuning time period linear amp is held at STBY (stand-by), and is
automatically turned on to OPER. (operate) as soon as the tuning is completed.
High power quality components used throughout such as 3 kV air variable capacitors
and power relays.
There are three antenna ports of SO-239 provided that can be programmed to the
specific operating bands as desired.
Also these ports may be programmed “Thru (through)”, as needed to by-pass the tuner
network.
Pre-set positioning system is incorporated to set the initial variable capacitors positions
at mid points of respective frequency bands.
This makes the tuning time relatively fast and more advantageous.
“Forced tune” function is incorporated.
As you move the frequency on the radio, auto-tuning may or may not be initiated.
If the exact tuning is desired in such a case, forced tuning is available by pressing the
SELECT dial knob.
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