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HF AUTOMATIC ANTENNA TUNER
EDX-3
Instruction Manual
Thank you for purchasing your new Alinco accessory.
This Instruction manual contains important safety and operating instructions.
Please read this manual carefully before using the product and keep it for future
reference.
Please be aware that EDX-3 is made especially for Alinco transceivers, and Alinco
is not responsible of any inconveniences when used with radios of other
manufacturers. Alinco can not provide connection instructions to use EDX-3 with
transceivers of other makes.
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Table of Contents
Related Manuals for Alinco EDX-3
Summary of Contents for Alinco EDX-3
- Page 1 Please read this manual carefully before using the product and keep it for future reference. Please be aware that EDX-3 is made especially for Alinco transceivers, and Alinco is not responsible of any inconveniences when used with radios of other manufacturers.
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Page 2: Important
For this, some countries apply the height restrictions of such devices for installations. At any case install EDX-3 and elements in the way that a person or pets can’t access and touch it. -
Page 3: Supplied Accessories
H Weatherproof cap ............1 I Ground cable ..............1 • Standard accessory may vary depending on the model you have purchased. Please consult with your Alinco dealer for the details before purchase. Optional items necessary to operate EDX-3 The following parts are additionally required for installation, but are not supplied with the EDX-3. -
Page 4: Features
EDX-3 matches any frequency on every HF band across 1.8-30 MHz. Full automatic tuning Just press the [TUNE] key on the transceiver, and EDX-3 adjusts immediately to the minimum SWR of any frequency on any HF band*. HF operation anywhere EDX-3 allows you HF operation where antenna element length is restricted due to space. -
Page 5: Table Of Contents
TABLE OF CONTENTS TABLE OF CONTENTS IMPORTANT ………………………………………………… 1 WARNING …………………………………………………… 1 SUPPLIED ACCESSORIES ……………………………… 2 Optional items necessary to operate EDX-3 ………… 2 FEATURES ………………………………………………… 3 TABLE OF CONTENTS …………………………………… 4 ANTENNA SYSTEM ……………………………………… 5 Antenna for ship ………………………………………………………… 5 Antenna for land operation ……………………………………………... -
Page 6: Antenna System
ANTENNA SYSTEM Antenna for ship Required antenna element length Required antenna element length to achieve full performance varies according to the lowest frequency: The lowest frequency Required antenna element length 1.9 MHz band (1.8MHz) 12m; 39.4 feet or longer 3.5 MHz band 7 m;... -
Page 7: Antenna For Land Operation
You may find information about ATU and its NOTE antenna theories on radio magazines and on the internet. Alinco strongly suggests to refer to such information in general for the efficiency and your safety purposes. -
Page 8: Ground And Counterpoise
These connections may cause an explosion or electric shocks: – Gas or electrical pipe – Fuel tank or oil-catch pan IMPORTANT! The mounting plate is NOT connected to the EDX-3’s internal ground. Be sure to use designated grounding terminal , not the plate to ground. - Page 9 ATU and its ground theories on radio magazines and on the internet. Electrolysis All ground cables from the EDX-3, HF transceiver, etc. on your ship should be connected to only 1 ship’s ground. AVOID connection to 2 or more points. Voltage difference between 2 or more ship’s grounds may cause electrolysis.
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Page 10: Installations
RF ground details. INSTALLATIONS Please read the instruction manuals of Alinco HF transceivers for details. EDX-3 maybe refered to as EDX-2, but connection and operation instructions remain unchanged. EDX-3 supports all ALINCO DX-series HF transceivers that EDX-2 is usable. Installation outline A Mount the EDX-3 in the desired location. -
Page 11: Mounting
U-bolt U-bolt plate Flat washer Spring washer Mount the EDX-3 securely with the supplied nuts and bolts. Otherwise, vibrations and shocks while moving. could loosen the WARNING antenna tuner making if fall, causing personal injury. „ Wiring of Antenna element and stay... - Page 12 INSTALLATIONS „ Mounting on a flat surface Using nuts and bolts Using self-tapping screws Spring washer Flat washer Weatherproof cap Flat washer Drill a hole here Hex headbolt Diameter:7–8 mm; ⁄ – ⁄ inches 352mm...
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Page 13: Operation
To reduce the risk of electric shock and RF noise, please follow the instruction below. • Separate the transceiver and EDX-3 as far as possible. Roll and store the excessive length of cables and keep away from the transceiver and tuner. -
Page 14: Control Cable Signals
As a character of automatic tuners, you should take countermeasures against common mode effects. It consists of installing ferrite coils and/or beads to the coax and controll cables of EDX-3. This also depends on such factors as the diameter and length of cables. You may search information by using key words like “antenna tuner common mode filter”... -
Page 15: Unit Description And Specifications
UNIT DESCRIPTION AND SPECIFICATIONS Unit description 290mm 225mm 68mm Mounting plate Control cable receptacle Ground terminal Antenna cable receptacle 78mm Antenna terminal Mounting plate Specifications • Frequency coverage : 1.8–30 MHz (with 12m; 39.4 feet or longer element) • Power supply requirement : 13.8 V DC (supplied from HF transceiver) •... - Page 16 We will replace the manual if manufacturing/printing may be defective, but can’t be responsible of eventual typographical errors and misinterpretations. Alinco and ALINCO logo are registered trademarks of Alinco Incorporated in Japan,the United States, EU States, Russia, China and many other countries.
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