Palstar AT1KD - User Manual

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 1500W - 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

Summary

AT1 KD Features and Specifications

Product Features Overview

Details the AT1KD's performance optimization, impedance matching, and innovative design for ease of use.

Technical Specifications

Lists front panel controls, rear panel connectors, frequency coverage, power, impedance, dimensions, and materials.

Controls and Connectors Explained

Front Panel Controls

Detailed explanation of the Power/SWR indicator, display switch, range switch, and mode switch.

Rear Panel Connectors

Description of 12V DC input and RF input coaxial connectors on the rear panel.

Installation and Pre-Operation

Installation Procedures

Step-by-step guide for unpacking, inspecting, and connecting the AT1KD tuner.

Before Operating

Essential checks and initial settings required before applying transmitter power.

Tuning the AT1 KD

Tuning Procedure

Instructions on how to tune the antenna using the AT1KD controls for optimal SWR.

Tuning Notes and Maintenance

Important notes on SWR, antenna adjustment, coil cleaning, and retuning.

Customer Policies

Return Policy

Information on returning equipment for repair or service, including associated fees.

Limited Warranty

Details the manufacturer's warranty coverage, limitations, and terms for the AT1KD.

Palstar AT1KD Specifications

General

Impedance	50 Ohms
Antenna Switch	Yes
Weight	12 lbs
Type	Antenna Tuner
Frequency Range	1.8 to 30 MHz
Power Rating	1000 Watts
Dimensions (W*H*D)	10.5 inches