ELECRAFT KAT500 Manuel utilisateur

ELECRAFT

KAT500 AUTOMATIC ANTENNA

TUNER

OWNER’S MANUAL

Revision B4, November 30, 2012

Contents

Introduction...............................................................................................................................................1

Quick Start................................................................................................................................................1

Customer Service and Support .................................................................................................................1

Technical Assistance.......................................................................................................................................1

Repair / Alignment Service............................................................................................................................. 1

Specifications............................................................................................................................................2

Setup.........................................................................................................................................................3

Cabling................................................................................................................................................................3

Elecraft K3 Transceiver and KPA500 Amplifier using DB15 Interface Cables.............................................3

Elecraft K3 Transceiver and KPA500 Amplifier with Separate Key Line.....................................................5

General Cabling Requirements ....................................................................................................................... 7

Interface Cable Wiring........................................................................................................................................9

DB15 Interface Cable......................................................................................................................................9

Icom AH-4 Interface .......................................................................................................................................9

Operation ................................................................................................................................................10

Tuning...............................................................................................................................................................10

Fine Tuning................................................................................................................................................... 12

Cancel Tuning...............................................................................................................................................12

Alternate Tuning Commands........................................................................................................................13

Bandswitching................................................................................................................................................... 13

Turning the KAT500 Off .................................................................................................................................. 13

Fault Conditions................................................................................................................................................14

Utility Program.......................................................................................................................................14

KAT500 Configuration.....................................................................................................................................14

Amplifier Key Interrupt Power..................................................................................................................... 14

Antennas........................................................................................................................................................15

VSWR Thresholds ........................................................................................................................................15

Erase Memories.............................................................................................................................................15

Saving Configuration.................................................................................................................................... 15

Parameter Initialization (EEINIT).....................................................................................................................15

Updating Firmware ...........................................................................................................................................15

Kit Assembly Procedure.........................................................................................................................16

Preventing Electrostatic Discharge Damage.....................................................................................................16

Tools Required..................................................................................................................................................16

Assembly Procedure.......................................................................................................................................... 17

Appendix A Parts List ............................................................................................................................34

KAT500 Circuit Board...................................................................................................................................... 34

KAT500 Core Assembly – E850561 ................................................................................................................ 34

Wrapped Covers E850565 ............................................................................................................................ 34

Wrapped Panels E850564 ............................................................................................................................. 35

Serial Number Envelope E850549................................................................................................................ 35

Miscellaneous Bag E850562......................................................................................................................... 35

Ant 1 SO-239 Assembly E850553................................................................................................................ 37

Ant 2 SO-239 Assembly E850560................................................................................................................ 37

Ant 3 SO-239 Assembly E850559................................................................................................................ 37

XMTR SO-239 Assembly E850554 ............................................................................................................. 38

Elecraft manuals with color images may be downloaded from

www.elecraft.com.

Introduction

The KAT500 Automatic Antenna Tuner is designed to be closely integrated with the Elecraft K3

transceiver and the Elecraft KPA500 amplifier although it may be easily used with other transceivers and

amplifiers. Features include:

Automatic band switching, covering the spectrum from 1.8 through 54 MHz.

Automatic antenna switching to connect one of three antennas according to the band selected.

L and C settings for lowest SWR are stored in memory for extremely rapid frequency and band

changes.

Robust self-protection circuits that guard against damage from switching high-power RF or trying

to match loads outside of its tuning range.

Static bleed resistor built in to avoid damage from normal static buildup on antennas.

Low profile enclosure that matches the footprint of the KPA500 and K3, allowing the KAT500 to

be placed on top or under either unit (the KAT500 is designed to support the weight of the

KPA500).

If you purchased your KAT500 as a kit, turn to page 16 for assembly instructions.

Quick Start

To quickly set up and get started with your KAT500 Automatic Antenna Tuner, turn to page 3 to hook up

the unit and page 9 for operating instructions.

Customer Service and Support

Technical Assistance

You can send e-mail to [email protected] and we will respond quickly - typically the same day

Monday through Friday. Telephone assistance is available from 9 A.M. to 5 P.M. Pacific time (weekdays

only) at 831-763-4211. Please use e-mail rather than calling when possible since this gives us a written

record of the details of your problem and allows us to handle a larger number of requests each day.

Repair / Alignment Service (We want to make sure everyone succeeds!)

If necessary, you may return your Elecraft product to us for repair or alignment. (Note: We offer

unlimited email and phone support to get your kit running, so please try that route first as we can usually

help you find the problem quickly.)

IMPORTANT: You must contact Elecraft before mailing your product to obtain authorization for the

return, what address to ship it to and current information on repair fees and turnaround times. (Frequently

we can determine the cause of your problem and save you the trouble of shipping it back to us.) Our

repair location is different from our factory location in Aptos. We will give you the address to ship your

kit to at the time of repair authorization. Packages shipped to Aptos without authorization will incur an

additional shipping charge for reshipment from Aptos to our repair depot.

Specifications

Frequency Range 1.8 to 54 MHz, continuous.

Supply Voltage and

Current 11 to 15 VDC, 1.5A max (200 mA typical).

Weight 4.6 lbs (2.1 kg).

Size Enclosure only, 1.5 x 10.8 x 10.0 in., HWD (3.8 x 27.4 x 25.4 cm). With projections, 1.75

x 10.8 x 11.8 in. (4.4 x 28.4 x 30.0 cm). The projections are the bottom feet and the cable

connectors on the rear.

Typical Matching

Range and Power

Limits

3 — 30 MHz 600W into 5 Ωto 500 Ω(10:1 SWR).

1000W into 16 Ωto 150 Ω(3:1 SWR).

1.8 — 2 MHz 600W into 10 Ωto 500 Ω(5:1 Low Impedance, 10:1 High Impedance

SWR).

30 — 60 MHz 500W into 5:1 SWR (10 Ωto 250 Ω).

Matching specified to a 1.0:1 to 1.6:1 output SWR. Power rating is ICAS (Intermittent

Commercial and Amateur Service).

Autotune Power Range

10W —100W.

For better matching accuracy, tune with >20W.

Elecraft's 1-Year Limited Warranty

This warranty is effective as of the date of first consumer purchase (or if shipped from factory, date product is

shipped to customer). It covers both our kits and fully assembled products. For kits, before requesting warranty

service, you should fully complete the assembly, carefully following all instructions in the manual.

Who is covered: This warranty covers the original owner of the Elecraft product as disclosed to Elecraft at the

time of order. Elecraft products transferred by the purchaser to a third party, either by sale, gift or other method,

who is not disclosed to Elecraft at the time of original order, are not covered by this warranty. If the Elecraft

product is being bought indirectly for a third party, the third party's name and address must be provided to

Elecraft at time of order to insure warranty coverage.

What is covered: During the first year after date of purchase, Elecraft will replace defective or missing parts

free of charge (post-paid). We will also correct any malfunction to kits or assembled units caused by defective

parts and materials. Purchaser pays inbound shipping to Elecraft for warranty repair, Elecraft will pay shipping

to return the repaired equipment to you by UPS ground service or equivalent to the continental USA and Canada.

Alaska, Hawaii and outside U.S. and Canada actual return shipping cost paid by owner.

What is not covered: This warranty does not cover correction of kit assembly errors. It also does not cover

misalignment; repair of damage caused by misuse, negligence, or builder modifications; or any performance

malfunctions involving non-Elecraft accessory equipment. The use of acid-core solder, water-soluble flux solder,

or any corrosive or conductive flux or solvent will void this warranty in its entirety. Also not covered is

reimbursement for loss of use, inconvenience, customer assembly or alignment time, or cost of unauthorized

service.

Limitation of incidental or consequential damages: This warranty does not extend to non-Elecraft equipment

or components used in conjunction with our products. Any such repair or replacement is the responsibility of the

customer. Elecraft will not be liable for any special, indirect, incidental or consequential damages, including but

not limited to any loss of business or profits.

Setup

NOTE: Although the KAT500 works equally well with either a transceiver or a

stand-alone transmitter, transceiver is used throughout this manual for simplicity.

The KAT500 can be used with any 1.8 through 54 MHz transceiver in the 20 to 1000 watt output range,

although the KAT500 integrates most closely with the Elecraft K3 transceiver and the KPA500 amplifier.

The KAT500 may be placed under or above either the Elecraft K3 transceiver or the KPA500 solid state

amplifier. The KAT500 can easily handle the weight of the KPA500 amplifier. The KPA500’s footprint

matches both units and the feet provide adequate spacing for proper cooling of the K3 or KPA500.

Cabling

Diagrams are provided below for stations using the Elecraft K3 and KPA500. Refer to General Cabling

Requirements on page 7 for using the KAT500 with other equipment.

Elecraft K3 Transceiver and KPA500 Amplifier using DB15 interface cables.

Elecraft K3 Transceiver and KPA500 Amplifier with a separate Key line that can be used to

control external equipment (e.g. a Stepper-IR antenna controller).

Elecraft K3 Transceiver and KPA500 Amplifier using DB15 Interface Cables.

Refer to Figure 1 (page 4) and the following notes:

50-ohm coaxial RF cables with PL-259 connectors. When using a transceiver with multiple

antenna outputs such as the K3, be sure the correct antenna connection is selected. The KAT500

allows up to three antenna connections, selected from the front panel (See Operation, page 9).

Two wire power cable with a female 2.1 mm coaxial connector (supplied). Connect to the

station 11 to 15 VDC power supply with the white striped lead to the positive terminal. Do not take

this power from the K3’s 12 VDC output connector, even if it has been upgraded for 1 Ampere.

DB15 interface cables with male and female connectors. Do not use common VGA cables;

they are not wired correctly for this use (See Interface Cable Wiring on page 9). You can order

E850463 from Elecraft or you can make your own. These cables provide the best integration of the

KAT500 with the K3 and KPA500 by:

Including the essential Key line that inhibits the KPA500 amplifier. The Key line circuit

passes through the KAT500 where it is automatically opened whenever a KAT500 tune

operation occurs. This inhibits the KPA500 to avoid applying excessive RF power while the

KAT500 is tuning. If you need access to the key line to control external equipment, see

Elecraft K3 Transceiver and KPA500 Amplifier with Separate Key Line on page 5.

Providing band data from the K3 to the KAT500 that allows it to switch to the current band at

the same time as the K3 instead of waiting until RF is applied and allows the KPA500

amplifier to send the K3 status information (see the KPA500 Owner’s Manual for complete

details).

Computer interface cable (supplied). USB connector to 3.5 mm T-R-S connector.Not required

for normal operation, but used for controlling the KAT500 from a personal computer, customizing the

KAT500’s operation or for updating firmware (see Utility Program on page 14).

Figure 1. Cabling Diagram: Elecraft K3, KPA500 and KAT500 Using DB15 Interface Cables.

Elecraft K3 Transceiver and KPA500 Amplifier with Separate Key Line

Refer to Figure 2 (page 6) and the following notes:

50-ohm coaxial RF cables with PL-259 connectors. When using a transceiver with multiple

antenna outputs such as the K3, be sure the correct antenna connection is selected. The KAT500

allows up to three antenna connections, selected from the front panel (See Operation, page 9).

Two wire power cable with a female 2.1 mm coaxial connector (supplied). Connect to the

station 11 to 15 VDC power supply with the white striped lead to the positive terminal. Do not take

this power from the K3’s 12 VDC output connector, even if it has been upgraded for 1 Ampere.

Power Amplifier Key cables with RCA connectors (one cable supplied). These cables inhibit

the amplifier to avoid applying excessive RF power while the KAT500 is tuning. You may add other

equipment that requires the amplifier be inhibited in series with this circuit as shown. The circuit

inside the KAT500 is a simple relay closure, so it does not matter which connector goes into each

jack.

DB15 interface cables with male and female connectors. Do not use common VGA cables;

they are not wired correctly for this use. These cables are optional since a separate PA Key line is

used, but they provide band data from the K3 to both the KAT500 and KPA500, allowing them to

switch bands instead of waiting the them to sense the frequency and switch bands when RF power is

applied.

IMPORTANT:

When using the external key line Figure 2 , the key line in the DB15 interface

cable must be opened so that external equipment inserted in the key line can

inhibit the amplifier when needed. You can order the KPAK3AUX Elecraft cable set

which includes the key line interrupter or you make your own cable and leave pin 10

at the connectors open (see Interface Cable Wiring on page 9).

Computer interface cable. USB connector to 3.5 mm T-R-S connector.Not required for normal

operation, but used for controlling the KAT500 from a personal computer, customizing the KAT500’s

operation or for updating firmware (see Utility Program on page 14).

Figure 2. Cabling Diagram: Elecraft K3, KPA500 and KAT500 Using DB15 Interface Cables with

Separate Key Line.

General Cabling Requirements

The KAT500 works well with equipment other than the Elecraft K3 transceiver and KPA500 amplifier.

Figure 3 shows the cables used with any transceiver and amplifier combination and Figure 4 shows the

cables used with a stand-alone transceiver or transmitter. See the notes on page 8 for details about each

cable.

Figure 3. General Cabling Requirements - Transmitter and Amplifier.

Figure 4. General Cabling Requirements - Stand-Alone Transmitter or Transceiver.

50-ohm coaxial RF cables with PL-259 connectors. The KAT500 allows up to three antenna

connections, selected from the front panel (See Operation, page10).

Two wire power cable with a female 2.1 mm coaxial connector (supplied). Connect to the

station 11 to 15 VDC power supply with the white striped lead to the positive terminal.

Power Amplifier Key cables with RCA connectors (one cable supplied). These cables inhibit

the amplifier to avoid applying excessive RF power while the KAT500 is tuning. You may add other

equipment that requires the amplifier be inhibited in series with this circuit at any point. The circuit

inside the KAT500 is a simple relay closure, so it does not matter which connector goes into each

jack.

Computer interface cable. USB connector to 3.5 mm T-R-S connector.Not required for normal

operation, but used for controlling the KAT500 from a personal computer, customizing the KAT500’s

operation or for updating firmware (see Utility Program on page 14).

Optional user-supplied cable. 3.5 mm T-R-S jack that allows Icom transceivers using the AH-4

protocol to initiate a KAT500 Tune operation (see page 11) from the transceiver. See your ICOM

manual for details about using this interface. See Icom AH-4 Interface, page 9, for wiring details.

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