Datron TW7000, TW7000-MSOP Operator's Manual

TW7000-MSOP

TW7000

HF TRANSCEIVER

OPERATOR MANUAL

Datron World Communications Inc. 3030 Enterprise Court
Manual Part No. TW7000-MSOP Vista, CA 92083, U.S.A
Release Date: June 2001 Phone: [phone] Fax: [phone]
Revision: F E-mail: [e-mail]

www.dtwc.com

© 2001 Datron World Communications Inc. (Datron)
All rights reserved.

Datron World Communication Inc.

This manual, as well as the software described in it, is
furnished under license and may only be used or copied
in accordance with the terms of such license. The infor­mation in this manual is furnished for informational use
only, is subject to change without no tice, and shou ld not
be construed as a commitment by Datron. Datron
assumes no responsibility or liability for any errors or
inaccuracies that may appear in this book.

Except as permitted by such license, no part of this pub­lication may be reproduced, stored in a retrieval system,
or transmitted, in any form or by any means, electronic,
mechanical, recording, or otherwise without the prior
written permission of Datron.

Software License Agreement and Warranty

This software is licensed to the user (licensee) under the
express terms and conditions of Datron’s software
licensing policies and agreement as outlined below. By
receiving and installing this software package the user
(licensee) has indicated acceptance of the terms and con­ditions of this agreement presented herewith.

As used in this document, the term “Software” shall
mean the application or control software in machine­readable format and the hardware protection key, along
with any or all supporting documentation, as well as all
updated or enhanced versions of the program supplied to
the user at later date(s). This software license does not
include source code, and therefore, no license is granted
with respect to source code of any kind utiliz ed directly
or indirectly in any Datron or Datron supplied third party
product. Note, in some cases, covered software may be
included in Datron products in RAM or ROM, and/or
forms of machine readable code, not readily accessible
to the user or licensee.

In consideration of the terms and conditions of this
agreement, Datron grants the user a non-exclusive, non­transferable license to install and operate one copy of the
program. Licensee agrees not to attempt, aid, authorize,
or direct any effort, either directly or indirectly to reverse
engineer or reverse compile the Software. Licensee fur­ther agrees they or their agents are not authorized to
make derivative versions or changes to the Software.
Title to and ownership of the Software shall at all times
remain with Datron and/or its licensors. Further, no
license is granted to copy or reproduce in any form what­soever the Software supplied without the express written
permission of Datron, prior to any such contemplated
action.

Datron may terminate this agreement and discontinue
further warranty coverage at any time due to failure to
comply with the terms and conditions of this agree­ment. In such an event, Datron will provide the user
with written notice of such a “failure-to-comply” and the
user will have 10 days to demonstrate that a remedy has
been implemented. If the user fails to perform, the
agreement will be terminated by further written notice

from Datron. Upon termination, the user shall immedi­ately return all original Software, documentation, and
any copies of each to Datron.

This Software is licensed “AS IS” and Datron provides a
warranty that covers the media upon which the Software
is embedded for a period of 30 days from receipt of the
product. Under this warranty policy Datron’s sole obli­gation shall be to replace or repair, at Datron’ s discretion,
any such media that in Datron’s opinion proves defec­tive. The user is obligated to provide Datron with a
detailed description of possible defects along with sam­ple material such that Datron can reproduce the identi­fied defects.

By receipt and use, user (licensee) acknowledges that
certain software developed or distributed by Datron is
controlled by one or more governmental agencies. The
user (licensee) herewith acknowledges they will take all
necessary actions to comply with applicable regulations
concerning the use of licensed software. Further, Datron
is under no obligation to supply source code or docu­mentation of its software for an y reason.

Datron makes no representation, express or implied, with
respect to any Software licensed under this document as
to its fitness for any particular purpose or intended use.
Furthermore, Datron shall have no liability under this
agreement for any incidental, special, or consequential
damages arising out of the use of any supplied software
programs. Datron reserves the right to make periodic
changes in it’s software for any purpose with out any
obligation to notify users.

One Year Limited Warranty and Remedies

Datron warrants that its equipment is free from defects in
design, mate rials, and workma nship for a period of 12
months from the date of installation of the equipment,
but in no event later than 15 months from the date of
shipment. If the eq uipment d oes not pr ovide sati sfactor y
service due to defects covered by this warranty, Datron
will, at its option, replace or repair the equipment free of
charge.

Should it be impractical to return the equipment for
repair, Datron will provide replacements for defective
parts contained in the equipment for a period of 12
months from the date of installation of the equipment,
but in no event later than 15 months from the date of
shipment.

This warranty is limited to the original purchaser and is
not transferable. Repair service performed by Datron is
warranted for the balance of the original warranty or 90
days, whiche ver is longer.

Exclusive Warranty: There are no other warranties
beyond the warranty as contained herein. No agent,
employee, or representative of Datron has any authority
to bind Datr on t o a ny a ffirmation, represe nt at i o n, or w a r­ranty concerning the equipment or its parts that is not in
conformity with the warranties contained herein.
EXCEPT AS EXPRESSLY SET FORTH ABOVE, NO
OTHER WARRANTIES, EITHER EXPRESS OR
IMPLIED, ARE MADE WITH RESPECT TO THE
EQUIPMENT OR THE PARTS CONTAINED

THEREIN, INCLUDING BUT NOT LIMITED TO
THE IMPLIED WARRANTIES OF MERCHANT­ABILITY AND FITNESS FOR A PARTICULAR PUR­POSE, AND DATRON EXPRESSLY DISCLAIMS
ALL WARRANTIES NOT STATED HEREIN.

Limitations of Warranty: This warranty does not
cover:

Physical damage to the equipment or its parts that does
not involve defects in design, material, or workmanship,
including damage by impact, liquids, temperature, or
gases.

Damage to the equipment or it s parts caused by light­ning, static discharge, voltage transients, or application
of incorrect supply voltages.

Defects or failures caused by unauthorized attempts to
repair or modify the equipment.

Defects or failures caused by Buyer abuse or misuse.
Return of Equipment - Domestic: To obtain perfor-

mance of any obligation under this warranty, the equip­ment must be returned freight prepaid to the Technical
Support Services. Datron World Communications Inc.,
3030 Enterprise Court, Vista, California 92083. The
equipment must be packed securely. Datron shall not be
responsible for any damage incurred in transit. A letter
containing the following information must be included
with the equipment.

a. Model, serial number, and date of installation.
b. Name of dealer or supplier of the equipment.
c. Detailed explanation of problem.
d. Return shipping instructions.
e. Telephone or fax number where Buyer ma y be con-

tacted.
Datron will return the equipment prepaid by United Par-

cel Service, Parcel Post, or truck. If alternate shipping is
specified by Buyer, freight charges will be made collect.

Return of Equipment - Internat ional: Contact Datron or
your local Representative for specific instructions. Do
not return equipment without authorization. It is usually
not possible to clear equipment through U.S. Customs
without the correct documentation. If equipment is
returned with out authorizati on, Buyer is responsible for
all taxes, customs duties, clearance charges, and other
associated costs.

Parts Replacement: The following instructions for the
supply of replacement parts must be followed:

a. Return the parts prepaid to “Parts Replacement”
Datron World Communications Inc., 3030 Enterprise
Court, Vista, California 92083; and

b. Include a letter with the following information:

1. Part number

2. Serial number and model of equipment

3. Date of installation
Parts returned without this information will not be

replaced. In the event of a dispute over the age of the

replacement part, components date-coded over 24
months previously will be considered out of warranty.

Remedies: Buyer’s sole remedies and the entire liability
of Datron are set forth above. In no event will Datron be
liable to Buyer or any othe r person for any damages,
including any incidental or consequential damages,
expenses, lost profits, lost savings, or other damages
arising out of use of or inabi lity to use the equipment.
1/95

Safety Considerations

This product a nd man ual must b e tho roug hly unde rst ood
before attempting installation and operation. To do so
without proper kno w le dge can resul t in eq uipment fail­ure and bodily injury.

Caution: Before applying ac power, be sure that the
equipment has be properly configured for the available
line voltage. Attempted operation at the wrong voltage
can result in damage and voids the warranty. See the
manuals section on installation. DO NOT operate equip­ment with cove r removed.

Earth Ground: All Datron prod ucts are supp lied w ith a
standard, 3-wire , gro unded a c plu g. DO NO T atte mpt to
disable the ground terminal by using 2-wire adapters of
any type. Any disconnection of the equipment ground
causes a potential shock hazard that could result in per­sonal injury. DO NOT operate any equipment until a
suitable ground has been established. Consult the man­ual section on grounding.

Servicing: Trained personnel should only carry out ser­vicing. To avoid electric shock, DO NOT open the case
unless qualified to do so.

Various measurements and adjustments described in this
manual are performed in ac power applied and the pro­tective covers removed. Capacitors (particularly the
large power supply electrolytics) can remain charged for
a considerable time after the unit has been shut off. Use
particular care when working around them, as a short cir­cuit can release sufficient energy to cause damage to the
equipment and possible injury.

To protect against fire hazard, always replace line fuses
with ones of the same current rating and type (normal
delay, slow-blow, etc.). DO NOT use higher value
replacements in an attempt to prevent fuse failure. If
fuses are failing repeatedly this indicates a probable
defect in the equipment that needs attention.

Use only genuine Datron factory pa rts for full perfor­mance and safety of this product.

Made in the USA

Contents 1

CONTENTS

Section 1: Introduction

General...................................... 1-1

Scope........................................1-1

TW7000 HF SSB Transceiver .................... 1-1

DescriptionofEquipment........................1-2

TW7000 Technical Specifications .................1-2

TW7000 Variations............................. 1-4

Conventions ..................................1-6

ReferencedManuals............................ 1-6

Section 2: Installation

Introduction................................... 2-1

TypeofInstallation.............................2-1

Input Power................................... 2-1

Antenna Connection ............................ 2-2

Microphone Audio Connection ................... 2-2

AccessoryConnections.......................... 2-3

Accessory Connector 1 Pinouts ...................2-3

Accessory Connector 2 Pinouts ...................2-4

Accessory Connector 3 Pinouts ...................2-5

PowerCablingAccessories ..................... 2-10

RFCablingAccessories........................ 2-11

ControlCablingAccessories .................... 2-12

RemoteControl............................... 2-13

TW7000 Back Panel........................... 2-15

Section 3: Operation

Powering the TW7000 ..........................3-1

TW7000 Front Panel............................ 3-1

Knobs, Buttons, and Indicators.................... 3-2

AlphaMenu ..................................3-7

AlphaMenu ..................................3-7

ALESubmenu................................ 3-11

ALESubmenu................................ 3-12

2 Contents

CustomizingChannelandFrequency.............. 3-16

Scanning.................................... 3-18

PlacinganALECall...........................3-20

PlacingaTransAdapt,Transcall,orSelcall......... 3-21

ActivatingtheNoiseBlanker.................... 3-24

ActivatingVoiceEnhancement ..................3-24

ActivatingEncryption.......................... 3-24

Section 4: Servicing

General...................................... 4-1

RoutineMaintenance ........................... 4-1

BoardAccessandReplacement................... 4-1

BoardLocations............................... 4-2

FieldLevelServicing........................... 4-2

Introduction 1-1

SECTION 1: INTRODUCTION

General

The Datron World Communications Inc. (DWC) TW7000 HF SSB
Transceiver is an advanced transceiver that provides a complete range
of both voice and data operation over the entire 1.6 to 30 MHz HF
spectrum. The TW7000 is microprocessor-controlled and features a
state-of-the-art DDS-based synthesizer for extremely fast switching
applications. A custom LCD is used to provide channel and frequency
data, feedback on other front panel control functions, BITE informa­tion, and order-wire text messages. The TW7000 has continuous tun­ing and up to 1000 memory channels that can be arranged in multiple
scan groups. It has simplex and half-duplex capability, and a full
alphanumeric keypad for frequency or text entry.

Scope

This manual describes the TW7000, its installation, operation, and fea­tures. For complete technical coverage of the transceiver, refer to the
TW7000 HF Transceiver Technical Manual (TW7000-MS).

Figure 1-1

TW7000 HF SSB Transceiver

1-2 Description of Equipment

Description of Equipment

The TW7000 includes the basic receiver/transmitter unit and accesso­ries. The accessories are a dc power cable (C991829), an operator
manual (TW7000-MSOP), and two spare dc 25A fuses (550011).

The TW7000 is powered from any dc source that provides 13.8V at a
maximum of 25A. Good performance is achieved when the input volt­age is in the range of 11 to 15.5V.

The 50 ohm, UHF, female, RF output connector is meant to be used
with broadband antennas, power amplifiers, and narrowband antenna
tuners.

The TW7000 can be programmed and operated from its front panel, or
from an external computer utilizing a wide variety of interface stan­dards including RS232, 422, and 485.

TW7000 audio accessories include a heavy-duty hand microphone, a
dynamic desk microphone, a Morse key, and headphones.

Table 1-1

TW7000 Technical Specifications

Characteristic Specification
General

Frequency Range 1.6 to 30 MHz for TX; .1-30 MHz for RX
Channel Spacing 10 Hz, standard
Channels 256 standard, expandable to 1000
Frequency Entry Keypad controlled
Display Backlight alphanumeric LCD
Tuning Up and down push buttons, programmable

steps

Scanning Multiple scan groups; operator selectable scan

rates

Antenna
Impedance

50 ohm

Frequency
Stability

± 1 ppm -30° to 60°C; optional ± 0.1 ppm

OperatingModes USB,LSB,AME,PCS,(standard);simplexor

semi-duplex
Duty Cycle Continuous
Input Power +13.8 Vdc, nominal; 11 to 15.5 Vdc, opera-

tional

Introduction 1-3

Input Power
Protection

Reverse polarity, transient and under/over

voltage
Size(HxWxD) 4in.x13in.x17in.

(10.2 cm x 33 cm x 43 cm)
Weight 21 lbs. (9.5 kg)

Transmitter

Power Output 125W PEP, 100W average; three levels, pro-

grammable from front panel
Intermodulation -32 dB, typical
Harmonics -60 dB, typical, 2-30 MHz
Carrier

Suppression

-50 dB, typical

Sideband
Suppression

-55 dB, typical

VSWR Protection Protected against antenna mismatch including

open and short circuit

Receiver

Frequency 100 kHz to 30 MHz
Clarifier Digital ±600 Hz in 10 Hz steps
Receiver

Protection

Can withstand +43 dBm input without damage

Sensitivity 10 dB SINAD min., for 0.5 µV input

(2-30 MHz)
IF Rejection -80 dB
Selectivity SSB: 300 to 2700 Hz at 3 dB
Attenuator +20 dB switchable
Audio 5W into 4 ohm
High-level Audio 0 dBm into 600 ohm
AGC Not more than 3 dB change in audio output for

input signals from -103 to +13 dBm
Squelch Syllabic

Environmental

Operating
Temperature

-30° to +60°C

Table 1-1

TW7000 Technical Specifications

Characteristic Specification

1-4 TW7000 Variations

Note: Specifications are subject to change without notice or obliga­tion.

TW7000 Variations

This manual includes the information necessary to operate any varia­tions of the TW7000. Options described in this manual may not be
available on your transceiver. For more information about TW7000
variation, contact DWC.

TW7000C: The TW7000C is designed for computer control. The
standard front panel is replaced with a blank front panel.

TW7000E: The TW7000E is designed for extended control. The
standard front panel is replaced with a line driver panel. For remote
operation up to 15m (50 ft.), use with TW7201E control head.

TW7000PP: The TW7000PP has connections that allow the TW5830
Pre/Postselector and TW5830INST Installation Kit to be added for co­sited operation.

Note: The TW5830 requires the radio have both the TW7000PP and
the TW5830INST. The TW7000 cannot be upgraded to a TW7000PP
in the field.

TW7000RF: The TW7000RF is designed for long distance (beyond
2 km) remote-only control. The standard front panel is replaced with a
blank front panel. An internal modem card (7000RF) is installed. For
full function FSK remote control, use with a TW7201F.

TW7000RI: The TW7000RI is designed for remote-only control up
to 2 km. The standard front panel is replaced with a blank front panel.
An internal modem card (7000RI) is installed. For full function, real
time, ISDN remote control, use with a TW7201I.

TW7000RX: The TW7000RX is a receiver only. It includes the full
receiver functions of the TW7000, excluding the transmit features.

Storage
Temperature

-40° to +70°C

Shock and
Vibration

Per MIL-STD-810E

Table 1-1

TW7000 Technical Specifications

Characteristic Specification

Introduction 1-5

TW7000TX: The TW7000TX is a transmitter only. It includes the
full transmitter functions of the TW7000, excluding the receiver fea­tures.

TW7000 Internal Options

Several internal options are available for the TW7000. These include
the following:

7000ACH: Increases operational channels to 1000.
7000ALE: Automatic link establishment (ALE) includes link quality

analysis, auto linking, sounding, and order-wire message transmission
and reception.

7000CLK: Internal clock keeps and displays the time and enables the
alarm features.

7000ENCR: High-level voice encryption uses enhanced domain
transform (EDT) ciphering techniques providing long-term security.

7000HS: High-stability reference oscillator allows a 0.1 part per mil­lion frequency stability.

7000NB: Impulse-type noise blanker used in high-voice environ­ments.

7000RCDR: Combines receive and transmit audio and routes them to
Accessory 2.

7000RF: Internal modem allows remote contact from the TW7201F

FSK controller.
7000RI: Internal modem allows remote contact from the TW7201I

ISDN controller.
7000RS: Modem interface board configures a second serial port

(RS422/485) to provide data protocol for external control of the radio
through a computer. This is in addition to the standard RS232 inter­face.

7000TC: Digital selective calling system includes automatic path
evaluation. It combines all functions of Selcall, Transcall, and Trans­Adapt.

7000VEM: DSP-based voice enhancement provides superior voice
recognition and signal-quality improvement in noisy environments.

7000WB1: Wideband data filter providing 300 to 3300 Hz with tai­lored group delay characteristics for data operation.

1-6 Conventions

Conventions

This manual uses the following typographical conventions:
Bold type is used to denote all items that display on the front panel and

for any button that is pressed. For example:

1. Press C, 041,andE.
Display: CH FREQ

041 13.330,000 MHz

RX

2. Press ALPHA and 17.

3. Press STATUS.

Referenced Manuals

• TW7000 HF Transceiver Technical Manual (TW7000-MS)

• 7000ALE Radio Control Program Operator Manual
(7000ALE-MSOP)

• 7000-Series High-Level Encryption Operator Manual
(7000ENCR-MSOP)

• TW7201I ISDN Remote Control Head Technical Manual
(TW7201I-MS)

• TW7201F FSK Remote Control Head Technical Manual
(TW7201F-MS)

Installation 2-1

SECTION 2: INSTALLATION

Introduction

This section contains information necessary to install the TW7000 in
its operating environment. Power,antenna, and accessory connections
are discussed. System diagrams are provided to show the proper con­nections to a variety of accessories.

Type of Installation

The TW7000 can be installed in a variety of different ways. Proper
installation is particularly important in marine and vehicular installa­tions; mounting and power source connections can make a difference
to transceiver performance.

Fixed Station

Unless otherwise specified when ordered, the TW7000 is shipped
ready for operation. The TW7000 uses an on-demand fan for cooling
the internal heat sink during periods of prolonged transmit operation.

Note: Supply adequate ventilation around the back of the TW7000 to
allow for proper air flow.

Vehicular or Marine

Mobile mounts should be used to mount the transceiver. On occasion
it may be necessary to fabricate special supplementary brackets to
complement a particular vehicle or shipboard location. DWC offers
rack, mobile, and shock mount kits for the TW7000, suitable for most
installations.

Input Power

Input power for the TW7000 is 13.8 Vdc, nominally, with a maximum
current requirement of 25A. The recommended operational voltage
range of the transceiver is 11 to 15.5 Vdc. The dc input connector
(12 Vdc input) on the back panel is a 2 pin, 25A circular receptacle
that has a square mounting flange with 2 male pins. The mating plug
is attached to the input dc power cable (C991829). This cable, sup­plied with the TW7000, has a convenient connection to a variety of
+12 Vdc sources. For specific connections, refer to the Power Cabling

Accessories figure on page 2-10.

2-2 Antenna Connection

The pin assignments for the input power connector are as follows:

The dc power connection between the TW7000 and its power source
should always be made as short as possible. If a DWC power cable is
not available, the following cables should be used: 14 AWG for runs
to 3 feet, 12 AWG for runs to 9 feet, or 10 AWG for longer runs.

The fuse holder (pin 346877) on the back panel contains a 25A, 3-AG
fuse, and a spare fuse of the same value.

Antenna Connection

The TW7000 is designed to work into a 50 ohm, RF impedance. The
output RF connector (antenna) is a PL259 UHF-type connector.
Broadband antennas and dipoles can be connected directly to this out­put, while high-power amplifiers and antenna tuners use DWC spe­cially designed 50 ohm cables. For specific connections, refer to the

RF Cabling Accessories figure on page 2-11.

Microphone Audio Connection

Low-level audio accessories for use with the TW7000 include the fol­lowing:

Two 6-pin microphone connectors are provided on the front panel of
the TW7000. The two connectors are wired in parallel and are suitable
for use by these audio accessories. The input impedance is a nominal
150 ohm. Most dynamic, ceramic, and magnetic microphones operate
with the TW7000. All DWC-supplied audio accessories have the cor-

Pin Number Description

1 Return (ground)
212Vdc

Part Number Description

PM Heavy-duty hand microphone
DM Dynamic disk microphone
KEY Morse key
EP Headphones
EPL Lightweight headphones

Installation 2-3

rect mating connector. To use other low-level audio accessories, the
correct mating connector can be obtained from DWC. The pin assign­ments for the two connectors are as follows:

Accessory Connections

DWC has a variety of external accessories for use with the TW7000.
For some of these accessories and their control cabling, refer to the

Control Cabling Accessories figure on page 2-12. For more informa-

tion on any individual accessory, refer to the manual for that piece of
equipment.

Connector Pinouts

There are three accessory connectors on the back panel, each with dif­ferent pin assignments. If multiple accessories are required that share
one or more of the accessory connectors, an external accessory com­biner box (TW7000IOX) can be attached to any of these connectors.
All of the connectors on the back panel are a D-submini socket with 25
pins. For the location of these connectors, refer to the TW7000 Back

Panel figure on page 2-15.

Pin Number Description

1 Ground
2 RX audio (unmuted)
3PTT
4 TX audio
5 CW key line
6 +12 Vdc

Table 2-1

Accessory Connector 1 Pinouts

Pin Number Description

1 Ground
2 COM1RXD (RX data)
3 COM1CTS (clear-to-send)
4 COM1TXD (TX data)
5 COM1RTS (ready-to-send)
6 BALRXA1 (balanced RX audio)
7 BALRXA2 (balanced RX audio)
8 BALTXA1 (balanced TX audio)
9 BALTXA2 (balanced TX audio)

2-4 Accessory Connections

10 AUXPTT\
11 Select
12 Busy
13 +12V ACC
14 EXTCWKEY (external CW key)
15 Strobe
16 Data 0
17 Data 1
18 Data 2
19 Data 3
20 Data 4
21 Data 5
22 Data 6
23 Data 7
24 ACK (acknowledge)
25 DI/OSEL

Table 2-2

Accessory Connector 2 Pinouts

Pin Number Description

1 Ground
2 Ground
3PWRON\
4 ATUINIT (tune initiate)
5 ATUKEY (tuner key line)
6 BALRXA1 (balanced RX audio)
7 BALRXA2 (balanced RX audio)
8 BALTXA1 (balanced TX audio)
9 BALTXA2 (balanced TX audio)
10 AUXPTT\
11 COM2RXD - COM2 (RX data)
12 COM2TXD - COM2 (TX data)

Table 2-1

Accessory Connector 1 Pinouts

Pin Number Description

Installation 2-5

13 +12V ACC
14 Ground
15 EXTCWKEY (external CW key)
16 ACHKTUNE (tuner check tune)
17 ADATA (tuner data)
18 ACLOCK (tuner clock)
19 ASTROBE (tuner strobe)
20 TC/SCALM (alarm)
21 RETX\ (retransmit)
22 EXTSPKR (speaker audio)
23 SQA (squelch audio)
24 +12V ACC
25 +12V ACC

Table 2-3

Accessory Connector 3 Pinouts

Pin Number Description

1 Ground
2 Ground
3FILTG\
4 AMPALC (external amplifier ALC line)
5 AMPPTT\ (external amplifier PTT line)
6 FLTA (low-pass filter select lines)
7 FLTB (low-pass filter select lines)
8 FLTC (low-pass filter select lines)
9 FLTD (low-pass filter select lines)
10 FLTE (low-pass filter select lines)
11 FLTF (low-pass filter select lines)
12 FLTG (low-pass filter select lines)
13 +5V
14 Ground
15 Ground

Table 2-2

Accessory Connector 2 Pinouts

Pin Number Description