1. Features
The AT1KD optimizes the performance of your antenna and transmitter or SWL
receiver by providing adjustable impedance matching using a T-type circuit
configuration with a dual-stator differential variable capacitor. The AT1KD also
measures the power and Voltage Standing Wave Ratio (VSWR or SWR) which
allows you to tune the SWR to the lowest ratio possible for the selected
transmission frequency. The AT1KD also features a precision roller inductor
with a steatite ceramic core. The innovative differential capacitor design simplifies
operation by reducing the number of knobs and eliminates false peaks while
tuning. It also results in a more compact case that takes up less room on the
operation desk.
2. Specifications
FRONT PANEL INDICATORS AND CONTROLS
Meter
Dual movement cross needle power and
frequency compensated coupler.
CONTROLS
Input Tuning & Antenna Tuning Dual-stator differential capacitor (440 - 0 - 440
pF, 3 kV) with 6:1 precision verier drive.
Inductance
24 µH roller inductor; 12 ga. wire wound on
steatite ceramic core, silver plated bar/wheel
Antenna Selector
6 position: Coax 1 tuned and tuner bypass,
coax 2 tuned and tuner bypass, bypass and
balanced antenna.
Switch Wafers
G-10 Glass Epoxy (3 kV rated)
Range Switch
2 position 140 W / 1400 W
REAR PANEL CONNECTORS
Coax 1
SO239 connector
Coax 2
SO239 connector
Bypass
SO239 connector
RF INPUT
SO239 connector
Balanced Line
Dual high voltage Nylon 66 terminal post
End-Fed Wire
Dual high voltage Nylon 66 terminal post
12 VDC@200ma (center positive)Adaptor for LED display; 2.1 mm female plug
OTHER
• Frequency Coverage
1.8 - 30 MHz
• Power Maximum
1000 W PEP SSB, 800 W single tone
• Impedance Range
20 to 1500
W
- 160 m to 10m
(assuming Resistive load)
Reduce power for lower Z range
• Balanced output
4 to 1 Ruthroff voltage type balun
• Dimensions
5.3”H x 10.6”W x 12.5”D (incl.
terminals)
• Weight
8 lbs.
• Materials
Chassis and top cover is .078”
aluminum. Cover and front panel
powdercoated and epoxy screened.
1
9676 N. Looney Rd., Piqua, OH 45356
Tel: (937)-773-6255 Fax: (937)-773-8003
800-773-7931
www.palstar.com
1200 Watt Antenna Tuner
