Elecraft XV User Manual

Elecraft Transverter Models XV50, XV144, XV222, XV432

Owner’s Manual

Rev F1, April 16, 2013

Table of Contents

INTRODUCTION .................................................................................................................................................................... 1

Features

Using an Elecraft K2 or K3 as the I.F. Transceiver ...................................................................................................................................................... 1

Customer Service and Support

Technical Assistance .................................................................................................................................................................................................... 2

Repair / Alignment Service ........................................................................................................................................................................................... 2

........................................................................................................................................................................................................................ 1

..................................................................................................................................................................................... 1

SPECIFICATIONS ................................................................................................................................................................. 3

General Transmitter Receiver

INSTALLATION ..................................................................................................................................................................... 4

Quick-Start Installation .................................................................................................................................................................................................. 4

Installation Options ....................................................................................................................................................................................................... 4

Elecraft K3 Setup Instructions ...................................................................................................................................................................................... 4

Elecraft K2 Setup Instructions ...................................................................................................................................................................................... 6

Non-Elecraft 28 MHz Rig – Separate Transmit and Receive RF Connections ............................................................................................................ 9

Non-Elecraft 28 MHz Rig – Single Transmit and Receive RF Connection ................................................................................................................. 10



Transverter Control Cable........................................................................................................................................................................................... 11

Daisy-Chaining Multiple Transverters ......................................................................................................................................................................... 14

Using an External Receive Preamplifier ..................................................................................................................................................................... 15

Using an External Power Amplifier ............................................................................................................................................................................. 15

OPERATION ........................................................................................................................................................................ 16

Cautions to Avoid Spurious Emissions From Your Station ......................................................................................................................................... 16

Turning the Transverter On......................................................................................................................................................................................... 16

Power Output Control ................................................................................................................................................................................................. 16 

Local Oscillator Power Control ................................................................................................................................................................................... 16

I.F. Overload Condition ............................................................................................................................................................................................... 17

Transmit-Receive Switching Delay ............................................................................................................................................................................. 17

Front Panel Display Control ........................................................................................................................................................................................ 17

OPTIONS AND MODIFICATIONS ....................................................................................................................................... 18

Tools Required ............................................................................................................................................................................................................ 18

Optional Crystal Oven ................................................................................................................................................................................................. 19

Changing Between Split and Common Antennas ...................................................................................................................................................... 20

Reducing Receive Gain to Preserve System Dynamic Range ................................................................................................................................... 21

Optional Feet and Bail Attachment ............................................................................................................................................................................. 21

CIRCUIT DESCRIPTION ..................................................................................................................................................... 22

Signal Flow ................................................................................................................................................................................................................. 22

Circuit Details .............................................................................................................................................................................................................. 24

ALIGNMENT AND TEST ..................................................................................................................................................... 27

Part I - Initial Setup ..................................................................................................................................................................................................... 27

Part II – Power Control ................................................................................................................................................................................................ 28

Part III - Local Oscillator Level .................................................................................................................................................................................... 28

Part IV – Receiver RF Amplifier Bias Adjustment ....................................................................................................................................................... 29

Part V – RF Power Amplifier Quiescent Current Adjustment. .................................................................................................................................... 29

Part VI – Filter Alignment. ........................................................................................................................................................................................... 29

Part VII – Power Display LED Calibration. .................................................................................................................................................................. 30

Part VIII – Receiver Input Alignment. .......................................................................................................................................................................... 30

Part IX - Overload Protection Circuit Test ................................................................................................................................................................... 31

Local Oscillator Frequency Calibration (Optional) ...................................................................................................................................................... 32

SCHEMATICS AND PARTS PLACEMENT DIAGRAMS.....................................................................................Appendix A

TROUBLESHOOTING..........................................................................................................................................Appendix B

JUMPER AND DIP SWITCH SETTINGS..............................................................................................................Appendix C

Introduction

The Elecraft XV Series high-performance transverters may be used with any transceiver or transmitter/receiver pair that covers the 10 meter band. Separate transverters are offered for the following bands:

 Model XV50: 50 to 52 MHz  Model XV144: 144 to 146 MHz  Model XV222: 222 to 224 MHz  Model XV432: 432 to 436 MHz

Features

I.F. connections to the transceiver can be either single-port, using a single RF cable, or dual port, using separate receive and transmit cables.

The transverters include an adjustable input level control that will provide full output from the transverter with I.F. power levels as low as 0.01 milliwatts up to 8 watts. Full protection against accidental high-power transmit of up to 100 watts into the I.F. port is also included.

The receiver features a very low noise figure with a PHEMT RF stage for weak-signal work. Relays are used for transmit/receive switching to avoid receive performance degradation by diode switches in the signal path.

Using an Elecraft K2 or K3 as the I.F. Transceiver

While the transverters will work with nearly any HF transceiver, using them with our Elecraft K2 or K3 offers additional benefits. These highperformance transceivers provide:

 Low noise, single-conversion, wide dynamic range receiver.  Single conversion to a low I.F. with roofing filters as narrow as

200 Hz

 K2, 6 transverter bands. K3, 9 transverter bands  Direct display of the transverter operating frequency to 10 Hz (1

Hz for the k3), including per-band adjustable offsets of +/- 9.99 kHz.

 Low current drain, ideal for Field Day or rover use.

We recommend that K2’s with serial numbers 3445 and below be equipped with Elecraft-approved modifications that reduce spurious responses and enhance frequency stability. See Special Notes for Elecraft

K2 Owners on page 4.

Customer Service and Support

The transverters are housed in attractive, low-profile enclosures that may be stacked for multi-band operation. An illuminated band label identifies the transverter in use. Several transverters may be connected to a single transceiver. Internal relays select only the transverter for the band in use, avoiding the need to switch I.F. cables.

Whether you build the kit or buy a factory-built transverter, you’ll find a wealth of information on our web site at materials there you’ll find the latest application notes, photographs, any updates to this manual, and information on new products. We also have a popular e-mail forum. You can sign up for it from the web site. It's a great way to interact with other Elecraft owners, exchange ideas and find answers to many questions.

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www.elecraft.com. Among the

Technical Assistance

You can send e-mail to support@elecraft.com 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

To ship the unit, first seal it in a plastic bag to protect the finish. Use a sturdy packing carton with at least 3-in (8 cm) of foam or shredded paper on all sides. Seal the package with reinforced tape. (Neither Elecraft or the carrier will accept liability for damage due to improper packaging.)

Elecraft 1-Year Limited Warranty

This warranty is effective as of the date of first consumer purchase (or if shipped from the factory, the date the product is shipped to the 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 at time of order to ensure 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 par ts and materials. Purchaser pays inbound shipping to us for warranty repair; we pay shipping to return the repaired equipment to you by UPS ground service or equivalent to the continental USA and Canada. For Alaska, Hawaii, and other destinations outside the U.S. and Canada, actual return shipping cost is paid by the 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, battery leakage or corrosion, 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.

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Specifications

Numeric values are typical; your results may be somewhat different. Specifications may be affected by the options or accessories chosen. See

www.elecraft.com for details about options and accessories currently

available. Specifications are subject to change without notice.

General

Size Cabinet: 1.3” H x 7.8” W x 8.3” D (3.3 x 19.8 x 21 cm)

Overall: 1.5 H x 7.8 W x 9.5 D incl. feet and connectors (3.8 x 19.8 x 21 cm)

Weight: 2.5 lbs (1.1 kg) Supply Voltage: 13.8 VDC Current Drain:

Receive: 250 mA (typical)

Transmit

Frequency Ranges: XV50: 50 – 52 MHz XV144: 144 – 146 MHz XV222: 222 – 224 MHz XV432: 432 – 436 MHz

T/R Switching Time: 3 ms (typical)

T/R Key Input: Ground for transmit: must pull 5 volt

I.F. Overload Protection: Survives 100 watts RF input at the I.F.

: 6 A typical for XV432, 4 A typical for XV50,

XV144, XV222

logic level to within 0.5 volts of ground at < 1 ma

Port without damage with transverter un-keyed (in receive mode)

Amplifier Key Output: Ground on transmit: 200 VDC at 1 A

maximum

Connectors:

K2 or K3 Interface: DB9 Keying Line Input: RCA Keying Line Output: RCA I.F. In/Out: BNC Aux (Rx-Only Ant): BNC Antenna: SO-239 (UHF) on XV50 Type N on XV144, XV222 & XV432

Transmitter

Power Out (50-ohm load): 20 watts SSB/CW 10 watts continuous carrier modes

Minimum Supply Voltage Recommended: 12 VDC

Operating Modes: CW, SSB, AM, FM, Digital Modes

I.F. Input Frequency Range: 28 – 30 MHz (XV50, 144 & 222) 28 – 32 MHz (XV432)

I.F. Input Power Range: 0.01 mW (-20 dBm) to

8 watts (+ 39 dBm)

Harmonic Content: < - 60 dBc at 20 watts output

Receiver

Noise Figure: < 1 dB Conversion Gain: 25 dB typical for XV50, XV144,

XV222, 20 dB typical for XV432

Image Rejection: > 60 dB

Current varies with supply voltage, load impedance and power output.

3rd-Order Intercept: +20 dBm (typical)

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Installation

Your transverter is designed to integrate closely with the Elecraft K2 and K3 transceivers. Also it will perform well with a variety of 28 MHz rigs and connection setups. Start with the Quick-Start Installation that matches your setup. Once you have the transverter working as desired, refer to the Installation Options below for ways you might better integrate the transverter into your station.

Quick-Start Installation

Choose the setup you wish to use from the list below and go to that procedure for your initial setup. If you aren’t sure which to choose, check the drawings associated with each of the following procedures to see which matches the 28 MHz rig you are using with your transverter.

1. Elecraft K3: go to Elecraft K3 Setup Instructions on page 4.

2. Elecraft K2: go to Elecraft K2 Setup Instructions on page 6

3. Non-Elecraft 28 MHz Rig – Separate Transmit and Receive RF

Connections. Go to page 9.

4. Non-Elecraft 28 MHz Rig – Single Transmit and Receive RF

Connection. Go to page 10.

Installation Options

Elecraft K3 Setup Instructions

All K3s are equipped with a KIO3 interface that provides the control signals needed through the rear-panel ACC connector.

While not required, the Elecraft KXV3 RX Ant. I/O, IF Output and Transverter Interface is highly recommended for use with the transverters. The KXV3 interface provides separate (split) receive transmit connections to the transverter and a low-level (1 milliwatt) transmit drive independent of the K3 power amplifier stages that eliminates the need to switch between the transverter and an external H.F. antenna.

Elecraft K3 with KXV3 Adapter

This setup uses the low-level transmit and separate receiver connections provided by the KXV3 Adapter.

We recommend that you first use the appropriate Quick-Start Installation and verify that your transverter is operating as expected. Once that has been done, the following optional setup configurations may help you better integrate the transverter into your station:

1. Daisy-Chaining Multiple Transverters. Using multiple

transverters without swapping cables. See page 14.

2. Using an External Receive Preamplifier. Using the transverter

with an antenna-mounted preamplifier to optimize noise figure with long feed lines. See page 15.

3. Using an External Power Amplifier. Controlling an external

power amplifier from the transverter. See page 15.

Figure 1. Connecting the Transverter to an Elecraft K3 With a

KXV3 Interface.

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Refer to the Using Transverters in your K3 Owner’s Manual to

configure the K3 for operation with the transverter:

Connect a 13.8 VDC, 6 ampere power supply to the transverter using

a cable equipped with an Anderson Powerpole® connector.

_ Note the XVn ADR number you have set up for the transverter. _ Set the maximum output to: L1.00 (1.00 milliwatts).

Refer to the following table and set the DIP switches on the RF PCB

for the XVn address you assigned.

XVn

1 2 3 4 5 6 7 8

1 2 3 4

OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF

DIP SWITCH POSITIONS

OFF OFF OFF

OFF OFF

ON ON ON ON

OFF

ON ON

ON ON ON

Place 2-pin shorting blocks on the transverter RF PCB jumpers

shown below:

_ JP1: 1-2 _ JP2: 2-3 _ JP3: 1-2 _ JP4: 1-2 _ JP5: 2-3 _ JP6: 2-3 _ JP9: 1-2

Elecraft K3 with No KXV3 Adapter

This setup uses the K3’s antenna port for both the transmit and receive signal path to the transverter.

OFF

Place a shorting block on 2-pin jumper JP8 (near the ON/OFF switch

on the RF PCB) and verify that there is no shorting block on JP7.

Locate front panel PCB 2-pin jumper, JP1, at the end of the socketmounted controller IC. Verify that there is no shorting block on this jumper. (Do not confuse this JP1 with JP1 on the RF PCB.)

Refer to Transverter Control Cable on page 11 to make up a new transverter control cable or to add connections for the transverter to your existing cable.

Connect the cables as shown in Figure 1.

Figure 2. Connecting the transverter to an Elecraft K3 Without a

KXV3 Interface.

Refer to the Using Transverters in your K3 Owner’s Manual to

configure the K3 for operation with the transverter:

_ Note the XVn ADR number you have set up for the transverter. _ Set the maximum output to: H5.0 (5 watts).

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Refer to the following table and set the DIP switches on the RF PCB

for the XVn number you assigned.

XVn

1 2 3 4 5 6 7 8

1 2 3 4

OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF

DIP SWITCH POSITIONS

OFF OFF OFF

ON ON ON

OFF OFF

OFF

ON ON

OFF

Elecraft K2 Setup Instructions

Your K2 must be equipped with:

 KIO2 Interface. Either the stand-alone KIO2 interface for the

QRP version of the K2, or the KIO2 interface built into the KPA100 amplifier is suitable.

 Revision 2 (or later) Firmware. To see your firmware version,

hold any front-panel button while turning on the power to your K2. Upgraded firmware is available from Elecraft.

K2’s with serial numbers 3445 and earlier should be equipped with the following Elecraft-approved modifications.

Place 2-pin shorting blocks on transverter RF PCB jumpers shown

below:

_ JP1: 2-3 _ JP4: 2-3 _ JP2: 1-2 _ JP5: 1-2 _ JP3: 2-3 _ JP6: 1-2 _ JP9: 1-2

Place a shorting block on 2-pin jumper JP8 (near the ON/OFF switch

on the RF PCB) and verify that there is no shorting block on JP7.

Locate front panel PCB 2-pin jumper, JP1, at the end of the socketmounted controller IC. Verify that there is no shorting block on this jumper. (Do not confuse this JP1 with JP1 on the RF PCB.)

Refer to Transverter Control Cable on page 11 to make up a new transverter control cable or to add connections for the transverter to your existing Aux I/O cable.

Connect the cables as shown in Figure 2

Connect a 13.8 VDC, 6 ampere power supply to the transverter using a cable equipped with an Anderson connector

 10 Meter Bandpass Filter and VFO/ALC modification, applicable

to all K2’s S/N 2999 and down. This modification reduces spurious signals. It is very strongly recommended.

 K2 BFO Toroid & PLL Ref Osc Xtal Upgrade, applicable to

K2’s S/N 2999 and down. This modification substantially reduces frequency drift in the K2’s reference oscillator and BFO.

 Temperature-Compensated PLL Reference Upgrade, applicable

to K2’s S/N 3445 and down. This modification further reduces the K2’s reference oscillator frequency drift.

While not required, the Elecraft K60XV 60-M and Transverter Adapter is highly recommended for use with the transverters. The adapter provides separate (split) receive transmit connections to the transverter. It provides a low-level (1 milliwatt) transmit drive that is independent of the K2 power amplifier stages eliminating the need to switch between the transverter and an external antenna when using the K2 as both the transverter I.F. and as an H.F. rig.

 If your K2 has a K60XV adapter, go to page 7.  If your K2 does not have a K60XV adapter, go to page 8.

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Elecraft K2 with K60XV Adapter

This setup uses the low-level transmit and separate receiver connections provided by the K60XV Adapter. The K2 must be equipped with an auxiliary input/output either through a KIO2 interface or the one built into the KPA100 amplifier.

Refer to the following table and set the DIP switches on the RF PCB

for the TRN number you assigned.

TRN

1 2 3 4 5 6 7 8

1 2 3 4

OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF

DIP SWITCH POSITIONS

OFF OFF OFF

OFF OFF

OFF

ON ON ON ON

OFF

ON ON

ON ON ON

Place 2-pin shorting blocks on the transverter RF PCB jumpers

shown below:

_ JP1: 1-2 _ JP2: 2-3 _ JP3: 1-2 _ JP4: 1-2 _ JP5: 2-3 _ JP6: 2-3 _ JP9: 1-2

Place a shorting block on 2-pin jumper JP8 (near the ON/OFF switch

on the RF PCB) and verify that there is no shorting block on JP7.

Figure 3. Connecting the Transverter to an Elecraft K2 with a K60XV

Interface.

Refer to the Transverter Operation section of the Elecraft K60XV

60-M and Transverter Adapter Assembly and Operating Instructions and

use the K2’s MENU commands to configure the K60XV for operation with the transverter:

_ Note the TRN number you have set up for the transverter. _ Set the maximum output to: Out L 1.00 (1.00 milliwatts).

Locate front panel PCB 2-pin jumper, JP1, at the end of the socketmounted controller IC. Verify that there is no shorting block on this jumper. (Do not confuse this JP1 with JP1 on the RF PCB.)

Refer to Transverter Control Cable on page 11 to make up a new transverter control cable or to add connections for the transverter to your existing Aux I/O cable.

Connect the cables as shown in Figure 3.

Connect a 13.8 VDC, 6 ampere power supply to the transverter using a cable equipped with an Anderson Powerpole® connector.

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Elecraft K2 with No K60XV

This setup uses the K2’s antenna port for both the transmit and receive signal path to the transverter. The K2 must be equipped with an auxiliary input/output either through a KIO2 interface or the one built into the KPA100 amplifier.

Refer to the following table and set the DIP switches on the RF PCB

for the TRN number you assigned.

TRN

1 2 3 4 5 6 7 8

1 2 3 4

OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF

DIP SWITCH POSITIONS

OFF OFF OFF

OFF OFF

OFF

ON ON ON ON

OFF

ON ON

ON ON ON

Place 2-pin shorting blocks on transverter RF PCB jumpers shown

below:

_ JP1: 2-3 _ JP4: 2-3 _ JP2: 1-2 _ JP5: 1-2 _ JP3: 2-3 _ JP6: 1-2 _ JP9: 1-2

Place a shorting block on 2-pin jumper JP8 (near the ON/OFF switch

on the RF PCB) and verify that there is no shorting block on JP7.

Figure 4. Connecting the transverter to an Elecraft K2 without a

K60XV interface

Refer to your K2 Operating Manual and the instructions that came with your current firmware and use the K2’s MENU commands to do the following.

_ Note the TRN number you have set up for the transverter. _ If using a K2/100, set the MENU command for PA OFF.

Locate front panel PCB 2-pin jumper, JP1, at the end of the socketmounted controller IC. Verify that there is no shorting block on this jumper. (Do not confuse this JP1 with JP1 on the RF PCB.)

Refer to Transverter Control Cable on page 11 to make up a new transverter control cable or to add connections for the transverter to your existing Aux I/O cable.

Connect the cables as shown in Figure 4.

Connect a 13.8 VDC, 6 ampere power supply to the transverter using a cable equipped with an Anderson connector

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Non-Elecraft 28 MHz Rig – Separate Transmit and Receive RF Connections

This setup is for any 28 MHz rig capable of providing separate transmit and receive connections. The transmitter must be capable of providing a variable RF output of up to 1 milliwatt, 251 milliwatts or 5 watts, and provide a key line that will ground a 5 volt logic level on transmit.

Place 2-pin shorting blocks on the transverter RF PCB jumpers

shown below:

_ JP1: 1-2 _ JP2: 2-3 _ JP9: 1-2

From the options below, choose the power output from your 28 MHz rig that will drive the transverter to full output. Place 2-pin shorting blocks on the corresponding RF PCB jumpers as shown:

Figure 5. Connecting the Transverter to a Non-Elecraft 28-MHz Rig with Separate Transmit and Receive RF Paths.

28 MHZ DRIVE LEVEL FOR

FULL TRANSVERTER OUTPUT

1 milliwatt 1-2 1-2 2-3 2-3 251 milliwatts 1-2 1-2 1-2 1-2 5 watts 2-3 2-3 1-2 1-2

Take care not to exceed the maximum power level you set up

the transverter for in the previous step. Doing so may result in damage to the transverter.

Place a shorting block on 2-pin jumper JP7 (near the ON/OFF switch on the RF PCB) and verify that there is no shorting block no JP8.

Place a shorting block on front panel PCB 2-pin jumper JP1 at the end of the socket-mounted controller IC. (Do not confuse this JP1 with three-pin jumper JP1 on the RF PCB.)

Connect the cables as shown in Figure 5.

Connect a 13.8 VDC, 6 ampere power supply to the transverter using the cable equipped with an Anderson connector

JP3 JP4 JP5 JP6

On the transverter RF PCB, set all four DIP switches to OFF.

- 9 -

Non-Elecraft 28 MHz Rig – Single Transmit and Receive RF Connection

This setup is for any 28 MHz rig with a single RF port for transmit and receive. The transmitter must be capable of providing a variable RF power output of up to 1 milliwatt, 251 milliwatts or 5 watts, and provide a key line that will ground a 5 volt logic level on transmit.

Place 2-pin shorting blocks on transverter RF PCB jumpers shown

below:

_ JP1: 2-3 _ JP2: 1-2 _ JP9: 1-2

From the options below, choose the power output from your 28 MHz rig that will drive the transverter to full output. Place 2-pin shorting blocks on the corresponding RF PCB jumpers as shown:

Figure 6. Connecting the Transverter to a Non-Elecraft 28-MHz Rig

with a Single Transmit and Receive RF Path.

On the transverter RF PCB, set all four DIP switches to OFF.

28 MHZ DRIVE LEVEL FOR

FULL TRANSVERTER OUTPUT

1 milliwatt 1-2 1-2 2-3 2-3 251 milliwatts 1-2 1-2 1-2 1-2 5 watts 2-3 2-3 1-2 1-2

Take care not to exceed the maximum power level you set up

the transverter for in the previous step. Doing so may result in damage to the transverter.

Place a shorting block on 2-pin jumper JP7 (near the ON/OFF switch on the RF PCB) and verify that there is no shorting block on JP8.

Place a shorting block on front panel PCB 2-pin jumper JP1 at the end of the socket-mounted controller IC. (Do not confuse this JP1 with three-pin jumper JP1 on the RF PCB.)

Connect the cables as shown in Figure 6.

Connect a 13.8 VDC, 6 ampere power supply to the transverter using the cable equipped with an Anderson connector.

JP3 JP4 JP5 JP6

- 10 -

Transverter Control Cable

Your transverter was supplied with a DB-9 cable connector and a length of multi-conductor wire for making up the transverter control cable for use with an Elecraft K3, K2 or K2/100.

Elecraft K3

A male DB-15 connector is provided with your kit to mate with the ACC connector on the back of your K3. Wire your control cable as follows:

Cut a length of the 4-conductor cable to suit the needs of your station layout. Keep the cable length as short as practical. A length of 2’ (60 cm) is recommended. Longer lengths may be used, but you may need to supply a more heavily-shielded cable to avoid RF interference.

Figure 7. K3 Control Cable Wiring.

Attach the connector housings (see Figure 9).

If you are integrating two or more transverters into the station at this time, cut a length of cable to reach from the first transverter to the next transverter in a daisy-chain arrangement (see Figure 7).

Remove 1/2” (12 mm) of the jacket from the cable at each end. Be very careful not to nick the individual wires.

Peel back and cut away the foil shield. Do not cut the bare ground wire.

Cut the white wire where it exits the jacket. It will not be used.

Strip of 3/16” (5 mm) of insulation from the black, red and green wires.

Twist the strands of each wire together. If you are daisy-chaining cables, twist the ends of leads with like colors together. Tin lightly with solder.

Solder the wires to the connectors as shown in Figure 7.

Follow the color codes shown below when wiring the connector. The same color code is used in the control interface cables for other Elecraft equipment. Keeping a consistent color code will help avoid mistakes and make troubleshooting easier.

Elecraft K2 or K2/100

You will need the DB-9 connector that came with your KIO2 or KPA100 to complete the cable. Follow the procedure below to make up your control cable.

If you are already using the K2 Aux I/O port to control a KPA100 ATU or to communicate with your personal computer, you may add the transverter control cable to the existing cable at the DB-9 connector so you won’t need to switch connectors when using the transverter (see Figure 10).

Remove 1/2” (12 mm) of the jacket from the cable at each end. Be very careful not to nick the individual wires.

Peel back and cut away the foil shield. Do not cut the bare ground wire.

Cut the white wire where it exits the jacket. It will not be used.

- 11 -

Strip of 3/16” (5 mm) of insulation from the black, red and green

wires.

Twist the strands of each wire together. If you are daisy-chaining cables, twist the ends of leads with like colors together. Tin lightly with solder.

Installing the Connector Housing

The connector housing is essential for a reliable, secure cable connection. A typical DB-9 housing is shown in Figure 9. Attach it to the cable as shown. Other makes of housings may be somewhat different, but should provide jack screws to secure it and an effective strain relief to prevent broken wires.

Solder the wires to the male DB-9 connector supplied with your transverter as shown in Figure 8.

Follow the color codes shown below when wiring the connector. The same color code is used in the control interface cables for other Elecraft equipment. A consistent color code will help avoid mistakes and make troubleshooting easier.

Figure 8. K2 Control Cable Wiring.

If you have not built an RS-232 or control cable to connect other equipment to your K2, you should have an unused DB-9 male connector that was supplied with the KI02 or KPA100 kit. In that case, wire the connector as shown in Figure 8. If you have wired the cable for the K2 and other accessories already, add the transverter extension(s) to it as shown in Figure 10.

Be especially careful to position the jack screws as shown so the connectors fully mate when they are tightened. Otherwise you may find that the connections are intermittent or open even though the connector is securely mounted to the transverter or rig.

Attach the connector housings (see Figure 9).

This completes your transverter control cable. If, in the future, you chose to add more transverters, add a KAT100 ATU interface to your H.F. station, or connect your K2 to a personal computer, you can add the connections to your existing cable as shown in Figure 10.

Figure 9. Installing the Connector Housing.

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Elecraft XV User Manual

Specifications and Main Features

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User Manual