7kdab Manual 20 Digital Audio Board

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User Manual: Digital Audio Board 7KDAB

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7K Digital Audio Board

Revision 2.0
19-Aug-2007
Vyex LLC
www.vyex.com

INTRODUCTION

LIMITED HARDWARE WARRANTY

TRADEMARKS

INSTALLATION

Installation into the rack mount cabinet.

Installing the FLASH Card

Updating the 7K repeater controller firmware

USING THE DAB

LED Status indicator

Basic use

Supported WAV File formats

Things to consider when deciding file storage parameters

Recommended editing programs

STORING FILES ON THE FLASH CARD

Multi-Media Card adapters

File system requirements

File system structure for the Audio Files

Special files stored in the root directory
CONFIG.INI
DAB-MAIN.BIN
DAB-BOOT.BIN
7K-IMAGE.BIN
7K-PATCH.BIN

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SPECIAL WORDS

9700 – Custom Delay

9701 – Long word continuation

7KDAB, Version 2.0, 19-Aug-2007

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9702 – Playback Speed Factor

9710 – Play Random File

9720 – Send Serial Characters

9790 – Force 7KDAB Reset

9796 – Load 7K Patch file

9797 – Provide RTC data to DAB

9798 – Load 7K-IMAGE.BIN

9799 – Save 7K-IMAGE.BIN

MORSE CODE FEATURES

Message File Location

Message File contents

Message file control characters
Pitch
Speed
Amplitude
Sending ‘Prosigns’

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7KDAB ‘Busy’ message

USING THE SERIAL PORT

Hardware Interface

Baudrate

Password

Connecting a Modem to the Serial Port

The Command Line Interface
CD – Change Directory
DIR – Directory command
DEL – Delete File
REN – Rename File
FIND – Find a file
SY – Send Y-Modem
RY – Receive Y-Modem
LO – Logout
REBOOT – Reboot DAB
SMHOST – Force Smart Host Present Flag
STOP – Stop current WAV file playback
TIME – Display or Set the current Time and Date
TYPE – Type a file to the console

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Command line interface commands available with 7K firmware 2.04
#!; - Issuing commands to the 7K
RFP – Remote Front Panel
SCRIPT – Execute text file to program the 7K controller

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FIRMWARE UPDATE PROCEDURE.

MMC card reader/writer attached to your computer running Windows

Use your terminal emulator to transfer a file to the MMC card

APPENDIX A LIBRARY CONTENTS

7K SSM Words

Sean Caldwell Words

Test Tones

APPENDIX B ASCII CHARACTER CHART

APPENDIX C – MORSE CODE CHARACTERS

APPENDIX D VERSION HISTORY

Product Firmware Revisions

User Manual Revisions
1.2 – 21-Oct-2003
1.3 – 10-Dec-2003
1.5 – 9-Feb-2004
1.5a – 17-Feb-2004
1.6 – 20-Mar-2004
1.6a – 12-May-2004
1.7 – 25-July-2004
1.7a – 13-May-2006
1.8 – 14-Aug-2007
2.0 – 19-Aug-2007

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APPENDIX E 7K VERSION 2.04 RELEASE NOTES

Disclaimer

Overview

New Commands
{PW} 16
Stop playback of current speech word
{PW} 24 xxxx
Remove Command From Macro
{PW} 36 T F xxxx
Modify ID Timers
{PW} 49 90/91/92/93 xx Message Handler Initial Message Delay
{PW} 49 94/95 xx Logic output pulse duration

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{PW} 76 ff yyyy (zzzz)
New Switches
{PW} 63 16 x
{PW} 63 19 x
{PW} 63 33 x
{PW} 63 34 x
{PW} 63 35 x
{PW} 63 36 x
{PW} 63 92 x
{PW} 63 93 x
{PW} 63 94 x
{PW} 63 95 x
{PW} 63 96 x
{PW} 63 97 x
{PW} 63 98 x

IF-THEN-ELSE

Daylight Savings time correction
Ignore Landline Busy Input
Enable “OK” Command Responses
Enable “?ERR” Command Responses
Courtesy message can be queued during message playback
Suppress command responses within macro execution
User Soft Switch 1
User Soft Switch 2
User Soft Switch 3
User Soft Switch 4
User Soft Switch 5
User Soft Switch 6
User Soft Switch 7

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Changed Commands
{PW} 02 f …
CTCSS Encoder
{PW} 40 r xxx Set Transmit Timeout Timers
{PW} 89 …
Select DTMF Priority/Scan
{PW} 50 0/1 99 Review Initial and Normal Tail ID’s
{PW} 96 t xx
Set DTMF Mute Delay
{PW} 63 xx 0/1/2/3
Set User Switch

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New Message Types

Operational Changes

Bug Fixes and Changes

Version 2.04

Version 2.04a

Version 2.04b

Version 2.04c

Version 2.04d

Version 2.04e

Version 2.04f

APPENDIX F SCHEMATICS

APPENDIX G – DAUGHTER PCB INSTALLATION

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Introduction
Thank you for purchasing the 7K Digital Audio Board (DAB).
The DAB has been designed as a “drop-in” replacement for the Speech Synthesizer board in the S-Com 7K repeater
controller, but does more than just talk.
The DAB utilizes a fast, FLASH based, single chip microprocessor to support audio playback from a FLASH based MultiMedia Card (MMC) which is used to store digitized speech files played back in response to commands from the 7K
repeater controller.
The MMC media card is the same type of solid state storage media that is used in many consumer devices such as
cameras, personal digital assistants, and MP3 players. The file system used on the FLASH card is the same FAT16 file
system used on desktop computers for years and is thus compatible with any third party MMC I/O device that supports
this type of file system. The FAT16 file system constrains the total storage space to approximately 2 Gigabytes, which
provides the potential to store hours of audio material. The user is free to upgrade the amount of storage space available
at any time simply by purchasing higher capacity FLASH cards from the vendor of their choice.
The audio files are stored in the well-known WAV file format, which is a subset of the Microsoft Resource Interchange File
Format (RIFF) file format. This flexible file format supports dozens of different audio compression methods, of which the
DAB supports only a few specific types.
The DAB also has an RS-232 serial port that can be used to send or retrieve files from the FLASH card in order to allow
the update of audio files, product firmware, and to make product configuration changes.
The DAB’s product firmware is fully field updateable and new firmware revisions can be installed by the end as they
become available.
If you have any questions or comments regarding this product, please know that your feedback is always appreciated.

Contact information:
Vyex LLC
S64 W24740 Susan Street
Waukesha, WI 53189
262.513.0150
support@vyex.com

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 Vyex LLC, 2003-2007

Limited Hardware Warranty
Vyex LLC warrants that its products will be free from defects in materials and workmanship for a period of one year from
the date of shipment.
This warranty does not cover damage caused by any of the following:
•
•
•
•
•

Physical damage of any kind.
Improper installation or connection.
Electro-static discharge damage caused by improper product handling.
Lightning.
Any product in which the customer has attempted to make field repairs or modifications.

During the term of the warranty, Vyex LLC will cover the cost of product repair including parts, labor and return shipping.
Vyex LLC may not support all third party manufacture’s Multi-Media Cards as viable storage devices for use with this
product.
Vyex LLC reserves the right to refund the purchase price as its exclusive warranty remedy.
For service contact Vyex at 262.513.0150
Any product return must include a Return Materials Authorization (RMA) number on the outside of the package.

Copyright Notice and Limited Software Warranty
The product software and associated audio files represent copyrighted materials, an original work of Vyex LLC.
Vyex LLC retains all right, title, and interest in and to the Software, and any rights not granted to you herein are reserved
by Vyex LLC. You may not reverse engineer, disassemble, decompile, or translate the Software, or otherwise attempt to
derive the source code of the Software, except to the extent allowed under any applicable law. If applicable law permits
such activities, any information so discovered must be promptly disclosed to Vyex LLC and shall be deemed to be the
confidential proprietary information of Vyex LLC.
Vyex LLC provides the following End-User License Agreements with respect to the software it distributes. An End-User
License Agreement is a legal agreement between you (either an individual or a single entity) and Vyex LLC for a Vyex
LLC software product. Such software product includes computer software and may include associated media, printed
materials, and "online" or electronic documentation ("SOFTWARE PRODUCT"). By installing, copying, or otherwise using
the SOFTWARE PRODUCT, you agree to be bound by the terms of the End-User License Agreement. If you do not agree
to the terms of the agreement, do not install or use the SOFTWARE PRODUCT; you may, however, return it to your place
of purchase for a full refund.
You may permanently transfer all of your rights under this End-User License Agreement, provided the recipient agrees to
the terms of this End-User License Agreement.
All title and copyrights in and to the SOFTWARE PRODUCT (including but not limited to any images, photographs, audio,
and text, incorporated into the SOFTWARE PRODUCT), the accompanying printed materials, and any copies of the
SOFTWARE PRODUCT are owned by Vyex LLC or its suppliers. The SOFTWARE PRODUCT is protected by copyright
laws and international treaty provisions. Therefore, you must treat the SOFTWARE PRODUCT like any other copyrighted
material.
Vyex LLC expressly disclaims any warranty for the SOFTWARE PRODUCT. The SOFTWARE PRODUCT and any
related documentation is provided "as is" without warranty of any kind, either express or implied, including, without
limitation, the implied warranties or merchantability, fitness for a particular purpose, or noninfringement. The entire risk
arising out of use or performance of the SOFTWARE PRODUCT remains with you.
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In no event shall Vyex LLC or its suppliers be liable for any damages whatsoever (including, without limitation, damages
for loss of business profits, business interruption, loss of business information, or any other pecuniary loss) arising out of
the use of or inability to use this Vyex LLC product, even if Vyex LLC has been advised of the possibility of such
damages. Because some states/jurisdictions do not allow the exclusion or limitation of liability for consequential or
incidental damages, the above limitation may not apply to you.
LICENSEE understands that the Software is subject to export control laws and regulations.
LICENSEE may not download or otherwise export or re-export the software or any underlying information or technology
except in full compliance with all United States and other applicable laws and regulations.
LICENSEE is responsible for paying any sales or use tax imposed at any time whatsoever on this transaction.
LICENSEE acknowledges that LICENSEE has read this Agreement, understands it, and agrees to be bound by its terms
and conditions. This Agreement embraces the full and complete understanding of the parties as to the subject matter
hereof and supersedes any prior agreement, whether written or oral, relating to the subject matter hereof, and may not be
altered or modified, except by written amendment which expressly refers to this Agreement and which is duly executed by
authorized representatives of both parties. If any part of this Agreement is found void and unenforceable, it will not affect
the validity of the balance of the Agreement, which shall remain valid and enforceable according to its terms. Further, this
Agreement shall be construed and governed in accordance with the laws of the State of Wisconsin, excluding the
application of its conflicts of law rules.

Trademarks
TM

MultiMediaCard

is a trademark of Infineon Technologies AG

Microsoft, Windows, and MS-DOS are registered trademarks of Microsoft Corporation.
All other brand and product names are trademarks or registered trademarks of their respective companies and are hereby
acknowledged.

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 Vyex LLC, 2003-2007

Installation
CAUTION:
The DAB is a static sensitive electronic device. Proper precautions should be exercised when handling the DAB.
Installation and connection of the DAB can only be performed with power removed from the controller.

Installation into the rack mount cabinet.
The DAB is installed in the controller cabinet to the left of the repeater controller circuit board and secured in place with
four 6-32 screws.

Using the supplied ribbon cable, connect the ribbon cable
between J4 on the DAB and the speech board connection,
P8, on the 7K repeater controller PCB.
As the 7K does not use a keyed or shrouded connector, use
due caution when making the connection to the 7K
connector. If the cable is not inserted correctly, severe
damage may occur to the DAB and will not be covered
by warranty.

If the serial port on the DAB will be utilized, the short ribbon cable assembly containing the DB-9 connector can be
connected to J3 on the DAB. The method of routing the cable out of the 7K cabinet and/or mounting of the DB-9
connector in the cabinet is left to the end user. Please note that the modification of the controller cabinet may void your
warranty with S-Com.
If you do attempt to modify the cabinet, please use proper precautions to guard against physical damage to the circuit
boards inside the cabinet, and against any metal debris which could potentially short components on the PCB’s.

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Installing the FLASH Card
The multi-media FLASH card should be inserted into the connector as shown, with the gold contacts facing downward.
When the card is not installed in the DAB, do not touch the gold contacts.

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Updating the 7K repeater controller firmware
An EPROM containing new firmware for the 7K has also been included with the DAB. This new firmware provides better
integration between the DAB and 7K controller as well as providing new, generic, features to the 7K itself.
When version 2.04 firmware is installed in the 7K, the 7K will need to be re-initialized before it will work, and the
user will need to reload their program into the controller.
The DAB will work with any version of S-Com firmware that supported the speech synthesizer module, and you may elect
to defer the installation of the new controller firmware.
If your controller is not already at a 2.x version status, and you wish to utilize the new firmware, you will need to contact SCom regarding upgrading other components on the 7K controller board.
To change the Firmware, use an IC extraction tool to exert equal force on each end of the old EPROM while pulling
straight up. Place the old EPROM in conductive foam, and then install the new EPROM as shown in the picture below.
Pin one, on the notched end of the EPROM, should be facing towards the rear of the cabinet.

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Using the DAB
LED Status indicator
The DAB has a dual color surface mount LED mounted near the board edge near the FLASH card connector.
If the FLASH card is present upon power up, the dual color LED on the DAB should briefly illuminate green as the FAT file
system code initializes its internal variables.
If the FLASH card is removed, both LED’s will illuminate and provide a yellowish glow to indicate the absence of the card.
When the FLASH card is present, if the LED glows solid Red, with brief flashes of Green, this indicates that the FLASH
media is not correctly formatted.
In normal operation, the Green LED will flicker when the FLASH card is being accessed for reading, and the Red LED will
flicker when the FLASH card is being accessed for writing.

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Basic use
In its simplest form, the DAB will mimic the original S-Com speech synthesizer board, and thus it is compatible with any
version of 7K firmware that supported the speech board.
The default speech library included with the DAB includes digitized versions of the original TI speech synthesizer
vocabulary. The recordings of the TI speech synthesizer have been low pass filtered to provide a sound which is less
harsh than the original speech synthesizer.
In addition to the original vocabulary, additional words have been recorded by a professional voice over talent. The list of
those words can be found in Appendix A.
If the user wishes to have custom words and phrases recorded in the same voice they may contact:
Sean Caldwell, KF4IWT
Phone: 212.898.1222
http://www.seancaldwell.com/
Sean has agreed to contract with the end users of this product for a very reasonable price.

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Supported WAV File formats
For those that wish to create their own WAV files, you will need to know about some specific constraints of exactly what
the DAB does and does not support.
PCM. 8 or 16 bit linear (uncompressed) values, in either mono or stereo format. The maximum supported sample rate is
22.05kHz.
muLaw. This is a logarithmically compressed format which stores 8 bits per sample and expands to approximately 12 bits
of precision. Mono and Stereo forms are supported. The maximum supported sample rate is 22.05kHz.
IMA/DVI ADPCM. Adaptive Delta Pulse Code Modulation essentially stores the difference from one sample to the next.
Several different ADPCM methods and subsets are part of the WAV file specification, the one that the DAB supports is
specifically this type, with 4 bits per sample, in mono format only. The maximum supported sample rate is 16kHz.
For the types that support stereo file playback, no attempt is made to “mix” the two channels together and the data stream
for only the left channel will be audible.
If a WAV file is stored using an unsupported compression method, or at too high of a sample rate, the DAB will simply
treat the file as a missing file and refuse to play it.

Things to consider when deciding file storage parameters
If the user wishes to provide for the highest fidelity playback, then the files should be stored as 16 bit PCM files. Using
this storage method consumes two bytes of disk space per sample.
If the user wishes to conserve as much disk space as possible, then the ADPCM compression method is recommended.
Using this storage method, two samples are stored in one byte of disk space.
The default speech libraries included with the DAB utilize muLaw compression for the TI speech synthesizer recordings,
and ADPCM for the live recordings. Both types are sampled at 11.025kHz.
It was found that applying ADPCM compression to the TI synthesizer recordings resulted in objectionable artifacts when
the files were played, but these same artifacts were not nearly as noticeable for the live recordings.
The practical limit of a narrowband FM voice channel is about 48dB Signal to Noise ratio, so what may sound
objectionable in your recording studio, may be inaudible to the end user.
Sample rates higher than 11.025kHz will be of little practical use when the high frequency rolloff of a normal twoway radio is considered. In fact, the end user may find that recordings at 8kHz sample rates are quite
satisfactory.
When making your own live recordings using “built-in” audio hardware in your budget desktop computer, you may find that
recording at these lower sample rates results in muddy sounding audio, and come to the conclusion that even a 22.05kHz
sample rate just isn’t enough. In this case, the real culprit is the poor performance of the low cost audio card in your
computer. Here you have two potential solutions. Either record at a higher sample rate, such as 44.1kHz and then
downsample to a lower rate, or buy yourself a professional grade audio card that doesn’t have these same performance
limitations.

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Recommended editing programs
Adobe Audition, formally Syntrillium Software’s Cool Edit Pro product, is a preferred tool we use here.
http://www.adobe.com/
SoX – Sound eXchange is a useful tool that claims to be the “swiss army knife of sound processing programs”. This
useful utility can convert from just about any sound format to another format, change sample rates, pitch, speed, filter, etc.
http://sox.sourceforge.net/
Goldwave – is a low cost, simple digital audio editor.
http://www.goldwave.com/
Sound Forge – is a higher end digital audio editor, with capabilities similar to Adobe’s Audition product.
http://www.sonicfoundry.com/
There are literally hundreds, if not thousands of software utilities available to edit, and manipulate WAV files, and to cover
them all in this manual would be impossible. The short list above represents those we have direct experience with and
wouldn’t hesitate to recommend.

Storing files on the FLASH card
Multi-Media Card adapters
A wide range of options exist in both internal and external FLASH card adapters that are compatible with modern desktop
computers. One of the most common adapters plugs into the USB port on your computer and allows you to read and
write files to one or more FLASH card media types.
These types of media adapters can generally be purchased new for less than $20 at your local computer store.
Due to the variety of products available, it is beyond the scope of this manual to provide a tutorial on their use.

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File system requirements
The Multi-Media Card needs to be formatted with a DOS FAT16 file format. For smaller media types, the default of the
format program you utilize may format the card with a FAT12 file system, and you will need to override the default
settings.
Example:
To format a 16MB card under Windows 2000, open a Command Prompt Window and type:

FORMAT d: /a:1024
Where ‘d’ equals the drive letter corresponding to the MMC card, and 1024 equals the size, in bytes, of each cluster.
You will be prompted:

Insert new disk for drive d:
and press ENTER when ready...
Hit [Enter] to continue.

The type of the file system is FAT.
Verifying 15M
Initializing the File Allocation Table (FAT)...
Volume label (11 characters, ENTER for none)?
Hit [Enter] to continue.

Format complete.
15,960,064 bytes total disk space.
15,960,064 bytes available on disk.
1,024 bytes in each allocation unit.
15,586 allocation units available on disk.
16 bits in each FAT entry.
Volume Serial Number is 10D5-D722
The key thing here is to select a cluster size for the disk that results in the format program showing a summary of “16 bits
in each FAT entry.”.
The most efficient disk utilization will generally be realized when the smallest possible cluster size is selected, however
other factors, such as the increase in the FAT table size may offset any gains that may occur through any increase in disk
utilization efficiency.

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File system structure for the Audio Files
The WAV files need to be stored in a predetermined manner in order on the FLASH card.
The Root directory needs to contain a “WAV” subdirectory, and the WAV subdirectory needs to contain additional four
digit numeric subdirectories corresponding to the “hundreds” portion of the word number to be spoken. Within each of
those subdirectories, up to 100 WAV files can be stored.
The file naming convention for each WAV file simply correlates one-for-one with the word number issued from the 7K
command 15.
For example if you wanted to associate a given WAV file with word 3024 you would name the file “3024.WAV” and store it
in the “\WAV\3000\” subdirectory. Similarly word 0007 would be named as “0007.WAV” and stored in the “\WAV\0000\”
subdirectory.
With the exception of the reserved word “0000” and words greater than “9699”, you may utilize as many of the word
numbers as you like, up to the limits of the storage space on your FLASH card.

Special files stored in the root directory
CONFIG.INI
This text file contains user settings that need to survive a power failure. It is a simple text file that contains a variable
keyword, equals sign, and desired setting for the associated parameter.
Comment lines can be preceded with a semicolon, or simply contain white space.
The supported keywords are:
•
•
•

BaudRate. Specify any standard baudrate up through 115200 baud. If not specified, the default baudrate of 115200
baud will be used.
Password. This is the case sensitive password used to protect access to the serial port. Only the first 8 characters
are used, and if not specified, the serial port will not require a password.
BusyMsg. Specify a Morse code message to be played when the 7K commands the 7KDAB to play a file during
periods when the file system is busy. Only the first 9 characters are used. If not specified, the default message of
“BZ” will be used.

Example file contents:

; Configuration file for 7K-DAB
BaudRate = 38400
Password = Secret
BusyMsg = WR9ACY/R
DAB-MAIN.BIN
This file contains the microcontroller’s firmware. If this file exists, its contents are checked against the current program
stored in the microcontrollers own FLASH memory. If they are different, the microcontroller will reprogram itself and
reboot to begin execution of the new firmware.

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DAB-BOOT.BIN
This file contains the small bootstrap loader used to reprogram the microcontroller. If this file exists, its contents are
checked against its program storage space in FLASH memory. If they are different, the microcontroller will reprogram this
portion of the FLASH memory.

7K-IMAGE.BIN
This file contains an image of the 7K controller’s battery backed SRAM. Special commands can be used to save or
restore the contents of the controllers programming.

7K-PATCH.BIN
This file contains a program image of the 7K firmware patch area.

Special Words
Words 9700 through 9799 have been reserved for use by the DAB. When these special words are “spoken” they trigger
special things to occur. Some of the functions represent a stand-alone function performed by the DAB and others
represent a cooperative effort between the new firmware on the 7K and the DAB.

9700 – Custom Delay
When this word is spoken, the word that follows it is used as a delay factor with its time specified in milliseconds.
For example, “9700 1000” would cause a 1 second silent pause during playback.
The maximum delay that can be specified is 5000ms.

9701 – Long word continuation
With 7K firmware revisions prior to 2.04, there is a hard coded timeout timer in the 7K firmware designed to detect a failed
speech board. While the 7K documentation documents this timeout timer as being 5 seconds, in reality a software bug
caused it to be 25 seconds.
In order to allow a DAB user to playback a speech file longer than 25 seconds, the DAB has a timer which artificially
signals the 7K that a phrase has been completely spoken even though playback continues. If the next word received is
9701, the DAB will continue to play the file already in progress, and approximately 25 seconds later signal the 7K that the
phrase has been completely spoken.
For example, “{PW} 15 9960 5000 9701 9701 9701” would allow 5000.WAV to play for approximately 100 seconds if
needed.
There is no harm in issuing too many 9701 continuation words. If no playback is in process, the DAB will simply
handshake with the 7K and move on to the next word.
This command is not needed with version 2.04 firmware as the keep-alive handshake will occur automatically in
the background.

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9702 – Playback Speed Factor
When this word is spoken, the word that follows it is used as a playback speed multiplier against the playback rate
specified in the WAV file header. The word value supplied is specified as a percentage of the playback speed with 0100
(100%) being the normal playback rate.
The value specified can range from 1 to 255%, but if the resulting playback rate exceeds the sample rate limits for the
WAV file, the playback rate will be limited to appropriate maximum playback rate.
The playback speed factor is a static value which defaults to 100% on reset. Whenever a user supplied value is specified,
that playback speed factor remains as the new playback rate until either a new factor is specified, or until a reset occurs.
For example, “{PW}15 9960 9702 0120” would set the playback rate to 120% of normal speed.

9710 – Play Random File
When this control word is issued, the next two word values are used as a starting and ending word value for the controller
to psuedo-randomly play an audio file within the inclusive range supplied. There is no restriction on the start or end value
other than that they need to be in the range of 0001 through 9699.
Due to the integer math used, and the fact that any pseudo-random number generator has its limitations, the user will find
that the span will affect the apparent randomness of the file chosen. Spans that represent a power of two will appear to
give the best degree of randomness, but the span may be of any desired size and should still to be sufficiently random for
the purposes of this function.
Some examples:
{PW} 15 9960 9710 3000 3010 ;play one audio file from the range of 3000 – 3010
{PW} 15 9960 9710 1000 4000 ;play one audio file from the range of 1000 - 4000
{PW} 15 9960 9710 4021 4022 ;play either audio file 4021 or 4022

Note: This will also select and play CW files included within the selection range, so it is conceivable to mix audio
tracks with CW messages if desired.

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9720 – Send Serial Characters
In order to allow a modem to share the same phone line that the repeater controller is connected to, one or more macros
will need to be created in the 7K to cause the modem to answer, or place a call on its own.
Once special word 9720 is encountered, the decimal of each word encountered after it will be used to determine which
ASCII character to send on the serial port. Any word value greater than 0256 will exit the ASCII character mode.
A null character can be sent by using a word value of 0256.
A chart of ASCII characters is provided in Appendix B.
In the following example, two macro’s are created to allow the 7K to answer the phone line. The first macro causes the
modem to generate answer tones, and then, after pausing, executes a second macro to cause the 7K to hang up the
phone line. The delay in this process ensures that the phone call is not dropped in the process of handing off the call to
the modem.
; Macro 5782 sends “ATA” to modem, delays for 2 seconds, then triggers macro 5783
{PW} 20 5782 {PW} 15 9960 9720 0065 0084 0065 0013 0500 9700 2000 9999 5783
; Macro 5783 disconnects Autopatch line.
{PW} 20 5783 {PW} 83

If you wanted the repeater to call you back on a separate modem line you could configure macro’s as follows.
;Macro 5784 disconnects the autopatch line, pauses for two seconds then sends “ATDT5551212”.
{PW} 20 5784 {PW} 83
{PW} 29 5784 {PW} 15 9960 9700 2000 9720 0065 0084 0068 0084 0053 0053 0053 0049 0050 0049 0050 0013 0500
Obviously you will need to replace 555-1212 with the phone number you desire the modem to call.

9790 – Force 7KDAB Reset
In the event that the 7KDAB firmware should get “stuck”, it may be possible to issue this word to force the 7KDAB to reset.
Although the 7KDAB does contain a hardware watchdog that will reset the CPU in the event that the 7KDAB should stop
executing as desired, there may be unforeseen situations where the software may appear to operate properly yet fail to
respond to the serial port. Because the 7K host interface software operates at an interrupt level, it may be possible for the
7KDAB to respond to this command.
Example:
{PW} 15 9960 9790

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Notice:
The following special word commands were included to aid in the overall firmware development process and are
somewhat experimental. While they are implemented, they are not supported at this time, but are documented
here for the sake of completeness.
Whenever any of these special word commands are issued, 100% of the 7K’s CPU time is dedicated to executing
the associated command. As such, all other controller activity is frozen… meaning any transmitters currently on
the air, will stay on the air, no DTMF commands will be possible, etc.
Issuing these commands with mismatched versions of firmware, may cause either the DAB or the 7K controller
to hang indefinitely.
Full support may be available in a future release.

9796 – Load 7K Patch file
This causes a patch file to be loaded into the 7K’s firmware patch area. The user needs to be certain that the patch file
exists before issuing this command, or the firmware load will fail ungracefully by resetting the controller.

9797 – Provide RTC data to DAB
This will cause the real time clock maintained in the 7KDAB to be set to the current time in the 7K.

9798 – Load 7K-IMAGE.BIN
Issuing this word causes the contents of the 7K’s battery backed SRAM to be overwritten with the contents in this file.
The image upload takes approximately 25 seconds, after which the 7K will reset.
Note that this literally will restore the controller to the state that it was in when the save command was executed. Beware
of what you ask for… for surely you will find it.

9799 – Save 7K-IMAGE.BIN
Issuing this word cause the contents of the 7K’s battery backed SRAM to be written to the FLASH card. The image
download takes approximately 5 seconds.

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Morse Code Features
Message File Location
Text files containing the desired message along with special control sequences to control pitch, speed, and amplitude can
be stored in the same directory structure along with the audio files.
As with the audio files, the Morse code filenames begin with the four digit numeric value of the desired phrase number,
but in this case use the file extension “CW”.
When the 7K controller commands the 7KDAB to play a given word, the 7KDAB will first check to see if a ‘xxxx.WAV’ file
exists, and if none is found, then it will check to see if a ‘xxxx.CW’ file exists, and if present will begin playback of the
Morse message file.

Message File contents
The text file should contain regular ASCII text characters. In addition to letters and numbers, standard punctuation
characters are supported. The full list of characters is included in Appendix C.
Any unsupported characters will be translated to a inter-word delay, or “space” character.
With version 2.04 firmware installed in the 7K controller, the only limitation to the length of a file is the size of the FLASH
memory card.
As with speech messages, a Morse message playback may be stopped with the {PW} 16 command (available in 2.04 7K
firmware), or by issuing the “STOP” command at the serial console prompt.

Message file control characters
Unless otherwise specified, the default for a CW message playback is a pitch of 720Hz at 20WPM and one-half maximum
amplitude. These values are reset at the beginning of each new message playback.
Special control character sequences are used to set the pitch, speed, and amplitude of the message and can appear
anywhere within a message. The control sequences consist of a single control character followed by numeric digits and
terminate with the first non-numeric character.
Note: If the first desired character after a command sequence is a numeric value the command sequence can be
terminated with a forward slash ( / ) character, which in that specific circumstance will not be treated as a intercharacter delay.

Pitch
A character sequence beginning with a tilde ( ~ ) character denotes a change pitch command. The pitch is specified in
Hertz, and can range from 1Hz to 5000Hz inclusive.
Note: The internal frequency resolution is limited to about 600mHz so the specified frequency will vary slightly
from the specified value. Also note that precision of the frequency is limited to that of the microprocessor grade
crystal.

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Speed
Two different control characters are supported for setting the speed. For normal cadences, the percent sign ( % ) is used
to select a speed ranging from 1 to 50 words-per-minute.
For code practice purposes, the inter-character speed may be supplied separately by using the asterisk ( * ) character to
select a speed ranging from 1 to 50 words-per-minute.
Note: When the ‘%’ character is used, it will set timing values for both the inter and intra character timing values,
so when using the ‘*’ control character, the ‘%’ control setting should precede the ‘*’ control setting.

Amplitude
A character sequence beginning with a up-caret ( ^ ) character denotes a change in amplitude command. The amplitude
is an 8 bit linear value and can range from 0 (off) to 255 (maximum).

Sending ‘Prosigns’
To send a prosign such as AR, AS, BT, SK, etc., any number of characters can be enclosed in brackets. The left bracket
( [ )has the effect of reducing the inter-character delay time to one dit time, and the right bracket ( ] ) has the effect of
restoring the inter-character delay time to three dit times.
Examples:
The following message sets the pitch to 880Hz, the amplitude to 128 (or half volume), 20WPM for the character timing,
and 13WPM for the inter-character timing, then sends “This is a Morse code message”.

~880^128%20*13This is a Morse code message
The following example sends “DE KA9FUR” using a different pitch for each character. Note that the command prior to
sending the ‘9’ is terminated using a backslash.

^255%13~1000D~1100E~1200 K~1300A~1400\9~1500F~1600U~1700R
The following example shows how to send a message containing a prosign.
Wx here is sunny [SK]
Send 8 dits like this [HH] or this [IIII] or this [EEEEEEEE]

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7KDAB ‘Busy’ message
If the 7K attempts to command the 7KDAB to play a file while the 7KDAB is otherwise preoccupied with another action
which requires the use of the FLASH file system (such as the user uploading new files to the card), after waiting for 2
seconds, the 7KDAB will play a short CW message in place of the desired word.
By default, the message is simply “BZ”, but can be changed by specifying a message of up to 9 characters. This
message is specified in the “CONFIG.INI” file with the keyword ‘BusyMsg’, which is read when the FLASH file system is
initialized.
For situations where the user may have multiple words playing in succession to form a message, the 7KDAB will only play
the busy message once during a 30 second time window.
The intent of this feature is to allow a legal identification to occur during periods of time when file system maintenance is
occurring. While the preferred method of handling this situation would be to create a macro that changes any system
messages from speech to Morse code, this provides an alternate means of handling this situation.

Example CONFIG.INI File contents:
BusyMsg = KA9FUR/R
Password = Secret
Baudrate = 115200

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Using the Serial Port
Hardware Interface
Connecting the DB-9 serial port connector to a PC type computer can be accomplished with a straight through cable.
The DB-9 connector pinout is as follows:
1.
2.
3.
4.
5.
6.
7.
8.
9.

No Connection
Transmit Data from DAB
Received Data to DAB
Ready to send from PC
Ground
DTR from DAB
Connected to pin 8
Connected to pin 7
No Connection

When the DAB sees pin 4 go ready, it will start a new command line session. If a password has been set, the DAB will
prompt the user for a password. When used with a modem, this pin should be tied to the modem’s carrier detect signal.
Pin 6 will normally be true, but at the end of a session timeout, or as the result of too many incorrect password attempts,
this line will go false for two seconds and then return true. This can be used, with proper modem configuration, to
disconnect a dialup caller.
Modem Wiring:
DAB (DB9)

Modem (DB25)

2
3
4
5
6

2
3
8
7
20

Baudrate
The serial port’s baud rate is determined by a setting in the CONFIG.INI file. Any baud rate up to 115200 can be specified
in the configuration file.

Password
The session password, if set in the CONFIG.INI file, must be entered correctly before access is given to the DAB’s
command line interface. Please note that this password is case sensitive.
Up to three attempts at entering the correct password are allowed before the DAB drops the DTR signal to disconnect the
caller.

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Connecting a Modem to the Serial Port
Since every modem tends to be a bit different, it is not possible to provide a single example that will work for everyone,
but we can point out the important steps that need to be taken.
First, the modem itself needs to be configured as follows:
•
•
•
•
•
•
•

Fixed DTE Speed. Possible command “AT&B1”
Normal Carrier Detect (CD) operation. In other words, CD should indicate whether or not a carrier is present.
Possible command “AT&C1”
Normal DTR operation. Modem should disconnect a caller if DTR goes false. Possible command “AT&D2”
No Hardware Flow Control. Possible command “AT&H0”
Modem should ignore RTS. Possible command “AT&R1”. Alternately, adding a jumper between pins 4 and 5
on the modem’s DB25 connector may provide the same results.
Modem should not send result codes. Possible command “ATQ1”
Modem should not echo characters. Possible command “ATE0”

Most modern modems should allow you to save these settings to EEPROM. Possible command is “AT&W”
Some modems have dip switches that allow the same sort of power on settings to be accomplished, yet others may
require a combination of dip switch and EEPROM settings to be configured.

The modem can share the telephone line with the repeater controller by creating a couple of simple macro’s. Examples of
how to do this were provided a few pages ago under the description of how special word 9720 can be used to send
characters to the serial port.
Modem wiring may also vary slightly, but in general you will need to connect the four signal wires, plus ground as shown
on the previous page.

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The Command Line Interface
Using the Command Line interface (CLI) the user can effect the management of files on the FLASH card. Upon gaining
access to the DAB’s command line interface the user is presented with the prompt:
7kDAB->
As a preface to the list of the following commands, it is important to note that the file system software in the DAB is single
threaded. This means that while a WAV file is being played, file system management commands are temporarily locked
out.
Similarly, if file management commands are in use, any attempts by the 7K to play a WAV file will fail. In this
circumstance, the DAB would simply handshake with the 7K as though the file had been played.
If the user needs to remotely update files on the DAB during periods of repeater use where speech would be regularly
needed, it is suggested that a user macro be written to temporarily change the repeater’s behavior so that speech is not a
normal part of the repeater’s operation.

CD – Change Directory
While similar to the change directory command under MS-DOS, this command only accepts a fully qualified path name.
When the present working directory is changed, it is reflected in the CLI prompt.
Right:

7kDAB-\>cd \wav\1000
7kDAB-\WAV\1000>
7kDAB-\WAV\4300>cd \wav\1000
7kDAB-\WAV\1000>
Wrong:

7kDAB-\WAV\4300>cd ..\1000
Directory not found

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DIR – Directory command
While similar to the directory command under MS-DOS, this command does not accept any parameters. It simply lists all
the files within the present working directory.
Example:

7kDAB-\>dir
MMC Card MID: 6, PNM: KODAK , PSN: 428348449
08/19/2003 14:04 [D----]
WAV
01/01/2001 01:00 [-----]
82
CONFIG.INI
Free Space is: 2160 clusters, 2211840 bytes
The first line of information shows manufacturer information about the MMC card contained in the card identifier.
The Manufacturer Identifier (MID) shows the numeric value of the manufacturer of the card. Known values are:
1 – Infineon
2 – Sandisk
6 - Hitachi
NOTE: If you have a card with an identifier not listed above, please let us know so that we can add it to our list.
The Product Name (PNM) field displays the contents of the six character text field in the card identifier header. The text
may include the products model number, or simply the vendor name.
The Product Serial Number (PSN) field shows the 32 bit serial number of the card.

The file attributes are shown inside brackets and include:
•
•
•
•
•

D – Directory
H – Hidden
R – Read Only
S – System
V - Volume

Other than the directory attribute, the DAB ignores all other file attributes.
The number of free clusters, which is the smallest disk allocation unit, and the number of free bytes remaining on the
FLASH card are displayed at the bottom of the directory listing.

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DEL – Delete File
While similar to the delete file command under MS-DOS, this command will only delete files in the present working
directory, and will not accept wild cards.
Example:

7kDAB-WAV\4300>del 4380.wav
File Deleted
REN – Rename File
While similar to the delete file command under MS-DOS, this command will only rename files in the present working
directory, and will not accept wild cards.
Example:

7kDAB-\WAV\5000>ren 5024.wav 5035.wav
File 5024.WAV renamed to 5035.WAV
FIND – Find a file
This command’s primary purpose is to show file access time performance information and will display the amount of time
needed to find a given file within the file system.
The user may find this command interesting to show the performance benefits of smaller vs. larger cluster sizes, and how
the ordering of directory entries affects file access times.
Example:

7kDAB-\>find \wav\1000\1000.wav
File Found. 22ms elapsed
7kDAB-\>find \wav\4300\4390.wav
File Found. 61ms elapsed
7kDAB-\>find \wav\4300\4399.wav
File not Found. 53ms elapsed

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SY – Send Y-Modem
Allows a file to be sent from the DAB to the users computer via the serial port.
Most any popular terminal program written in the past 10-15 years will support Y-Modem file transfers. Since each
program is different, please consult that software’s documentation for use of the file transfer capabilities of your terminal
emulation program.
The filename you wish to download into your computer should be specified on the command line, and needs to exist in the
present working directory.
Example:

7kDAB-\>sy config.ini
Start your YMODEM Download now.
At which point you would start your file transfer software.

RY – Receive Y-Modem
Allows one or more files to be sent to the DAB from the users computer via the serial port.
Example:

7kDAB-WAV\4300>ryCCCCC
The “C”’s shown in the example above are sent periodically by the DAB to signal to the host computer that the DAB
wishes to start receiving files using the CRC checksum method. One startup character is sent every 3 seconds, and up to
20 attempts are made before timing out.

LO – Logout
This command simply terminates a command line session, and will cause a modem to disconnect.

REBOOT – Reboot DAB
This command unceremoniously causes the DAB to reboot. It may be used to take advantage of new settings in the
CONFIG.INI file.

SMHOST – Force Smart Host Present Flag
This command is needed after a Reboot command is issued in order to simulate a special handshake sequence that
occurs when the 7K controller containing Version 2.04 software first powers up. Unless this handshake sequence is seen
by the DAB, some of the more advanced features, such as being able to send commands to the 7K, will be locked out.
Do not issue this command unless your 7K controller has Version 2.04 software.

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STOP – Stop current WAV file playback
Immediately terminates the playback of any WAV file. This may be useful if the command line user wishes to interrupt the
playback of a long WAV file in order to gain access to file management commands.

TIME – Display or Set the current Time and Date
This command will display or set a time of day clock in the 7KDAB. The time and date maintained within the 7KDAB will
be used for the time and date stamp on any files written to the FLASH card.
Note that when setting the time and date, only basic range checking is performed and that in some instances, the day of
month will be set to the maximum number of days for that particular month.
Note that the time of day maintained within the 7KDAB does not survive a power cycle, and that the clocks
accuracy is not specified and may accumulate error of several minutes per day.

Set time example:

7kDAB-\>time 13:33:00
7kDAB-\>
Set time and date example:

7kDAB-\>time 13:33:14 8/23/2007
7kDAB-\>
Display time and date example:

7kDAB-\>time
13:33:15 08/23/2007
TYPE – Type a file to the console
Causes the contents of a file to be echoed to the console serial port.
Control-C can be used to abort the file echo. Control-S will pause the file echo, and Control-Q will resume.

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Command line interface commands available with 7K firmware 2.04
#!; - Issuing commands to the 7K
Perhaps one of the more appealing additions to the 7K firmware, when used in conjunction with the DAB, is that
commands to the 7K can be entered on the serial port.
Any digits preceded with an exclamation point will be sent to the 7K and treated as DTMF digits that appear to originate
from within the controller.
Input lines to the command processor are limited to 80 characters in length, but for long lines a continuation character “\”
can be placed at the end of a line to signify more digits for a given command sequence will appear on a subsequent line.
Command execution occurs when the Carriage Return character is received.
White space characters may be freely inserted if it makes the line more readable.
Multiple commands can be entered on one line by using the asterisk (“*”) to signify the end of one command and the start
of the next.
The octothorpe (“#”) can be used to cancel a command in progress.
Any lines proceeded with an octothorpe (“#”) or a semicolon (“;”) are treated as comment lines and are simply ignored.
This allows a commented script file to simply be uploaded with a terminal program to the DAB in order to program the
controller.
If the user desires to use a text file upload method to program the controller, the terminal program should be setup to pace
itself either by waiting for a new command line prompt from the DAB to appear, or by adding a delay at the end of each
line.
Example:

7kDAB->;Program courtesy tone for Rx1
7kDAB->!99 31 9981 9911 76 55 57045912 57051204
7kDAB->;This is an example of a line continuation
7kDAB->!99 31 9981 9911 76 55 57045912\
7kDAB->!57051204

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RFP – Remote Front Panel
The remote front panel command allows real time viewing of the controller activity via the serial port. When this command
is invoked a representation of the controller’s front panel, along with some additional data is displayed on your screen.
A group of three reverse video spaces is used to form a block to denote an indicator that is ‘lit’ whereas a lower case ‘o’ is
used to indicate an indicator which is ‘dark’.
When speech playback is active, the current audio track being played will be shown in the upper right hand corner of the
screen.
The lower part of the screen is set aside to display decoded DTMF digits as they arrive, and to show where those digits
are being received from. A new line is started each time a command is terminated with an asterisk (*) or octothorpe (#),
or if the DTMF source changes.
If for some reason the screen becomes garbled due to a missed character, you can type the letter “R” to refresh the
screen. When the screen is repainted, the historical DTMF digit information of the screen is lost.
The display mode can be exited at any time by hitting the escape key.
Hit [ESC] to exit or 'R' to refresh

Playing: 1027

COR1 CTCSS1 COR2 CTCSS2 COR3 CTCSS3 PTT1
XXX
XXX
o
o
o
o
XXX

PTT2
o

DTMF
o

BZIN BZOUT
o
XXX

RING
o

ENC
XXX

IN1
o

IN2
o

IN3
XXX

IN4
o

IN5
o

IN6
o

OUT1
o

OUT2
o

OUT3
o

OUT4
o

OUT6
o

OUT7
o

USR1
o

USR2
o

USR3
o

USR4
XXX

USR5
o

USR6
o

USR7
o

Rx1
Rx3
Rx1
LL
LL
LL
LL
Rx1

OUT5
XXX

856*
80
8754*
9979500*
99717*
99705*
9983*
8713*

Indicators in addition to those already provided on the real front panel include:
•
•
•

RING
ENC
USR1-7

Phone line ringing status
CTCSS Encoder output status
Indicate the current values of user function soft switches 92 through 98

Real time updates are not possible during DAB audio playback due to the fact that during playback, the interface between
the 7K and DAB is dedicated to handshaking between these two units in a way that is compatible with the original S-COM
speech synthesizer module. Information regarding controller operation can only be sent to the DAB during periods when
the interface is otherwise available and I/O status change information will be sent to the DAB once speech playback has
completed.
The DAB firmware utilizes VT100 terminal commands to provide a fast and efficient means of updating the screen, and
thus the user needs to utilize a suitable terminal or terminal emulation program to accomplish this. The list of software
companies that provide terminal emulation and file transfer software is quite extensive and beyond our ability to provide a
list of those that do work correctly vs. those that do not. However, limited testing of freeware, shareware, and commercial
programs clearly demonstrate that “you get what you pay for” in terms of faithful emulation.
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“Hyperterm” users will need to visit the Hilgraeve website http://www.hilgraeve.com/ and download a current version of
this free terminal emulator in order for all characters to be properly displayed. For many years, Microsoft has bundled
Hilgraeve’s terminal emulation software with Windows, and those bundled versions have some issues with some of the
commands that the DAB uses. Hilgraeve’s website is silent as to when the bug(s) related to the screen redraw functions
were addressed, but their version 6.3 appears to work fine.
Hilgraeve’s product is the only “free” emulator known at this time to provide true VT100 emulation and YMODEM file
transfer capabilities. If you find other programs that work, please let us know.

SCRIPT – Execute text file to program the 7K controller
Issuing the script command followed by a text file’s name will echo the contents of that file to the console, and any lines
beginning with an exclamation point (‘!’) will be parsed and sent to the 7K controller in the same manner that a command
may be directly executed from the command line. Just as with manually entered commands, long lines can be continued
on the next line by ending the line with a back slash (‘\’).
Lines beginning with an exclamation point are limited to 80 non-white space characters. Lines exceeding this length will
prematurely terminate the file transfer to the 7K and display an error message.
Keep in mind that the file will be transmitted as quickly as the 7K can receive it and if command responses are enabled
could cause the 7K’s 400 byte message buffer to wrap resulting in some messages being lost or corrupted.
Also keep in mind that the while this command is executing, no speech words can be played and will cause the 7K’s
message system to stall and time out each individual word or phrase. Therefore, it is advised that any enabled command
responses not utilize speech responses.
Control-C can be used to abort the file execution. Control-S will pause execution, and Control-Q will resume.
Example:
7kDAB-\>script test.scr
;play warble tones
!99 15 9900 40 40 9910 5850 74 55 10 20 10 20 10 20
;play morse ditty
!99 15 9900 40 40 54 14 28 14 40 14 14
7kDAB-\>

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Firmware Update Procedure.
The product firmware can be updated by placing a new firmware image file in the root directory of the MMC card. This
can be accomplished in one of two ways.

MMC card reader/writer attached to your computer running Windows
It is beyond the scope of this manual to provide a tutorial on the use of specific computer peripherals, as well as to make
specific brand name recommendations for these third party devices.
Your local computer store, or your favorite on-line retailer, should have these products readily available, although you may
find the term “Secure Digital” more widely used than “MultiMedia Card” or “MMC”. The two technologies are similar, with
Secure Digital being an extension of the MultiMedia Card standard. Secure Digital cards are slightly thicker, and cannot
be used in 7KDAB boards prior to board revision “F”, but a Secure Digital card reader should accept a MMC card.
1.) Download the new firmware binary file to a temporary storage location on your computer.
2.) Remove the MMC card from the DAB and place it in your FLASH card drive.
2.) Copy the firmware binary file into the root directory on the card.
3.) After the file copy has completed, wait at least 30 seconds before removing the card from the drive to allow the system
to flush any unwritten data to the disk.
4.) Re-insert the card into the DAB
5.) When the card is re-inserted and power is applied, you will see the message "Updating FLASH program", followed by
a reset message indicating a software reboot. You should note that the power on message indicates that the new version
of firmware is running.
6.) Once the firmware update is complete, you may delete the firmware binary file from the MMC card.

Use your terminal emulator to transfer a file to the MMC card
1.) Download the new firmware binary file to a temporary storage location on your computer.
2.) Using a terminal emulator, issue the "RY" command at the "7kDAB> prompt.
3.) Within your terminal emulator, initiate a Y-MODEM file transfer of the new binary firmware file. You only have 30
seconds to start the file transfer or the DAB will timeout and cancel the file transfer.
4.) When the file transfer is complete, issue the "reboot" command at the command prompt.
5.) When the DAB reboots, you will see the message "Updating FLASH program", followed by a reset message indicating
a software reboot. You should note that the power on message indicates that the new version of firmware is running.
6.) Once the firmware update is complete, you may delete the firmware binary file from the MMC card.

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Appendix A Library Contents
7K SSM Words
Words 0001 through 0597 and 4097 through 4388 are simply recorded versions of the S-COM SSM library using the
latest speech ROM versions. Please refer to the appropriate S-COM documentation for a list of those words.
In addition to the standard library two additional synthesized words are included in the library:
•
•

4389 – Milwaukee
4390 – Repeater (a pleasant sounding version)

Sean Caldwell Words
A
A.M.
A.P.U.
A.T.V.
abeam
Abel (able)
Abington
able
abnormal
abort
about
above
accelerate
accelerated
access
acknowledge
action
activated
activating
active
activity
Adam
address
adjust
advise
advisory
aerial
affirmative
aft
afternoon
again
ahead
air
aircraft
airforce
airport
airspeed
Alabama
7KDAB, Version 2.0, 19-Aug-2007

1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
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1013
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1016
1017
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1020
1021
1022
1023
1024
1025
1026
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1028
1029
1030
1031
1032
1033
1034
1035
1036
1037

alarm
alarmed
Alaska
Albany
Alberta
Albuquerque
alert
all
Allenton
Allentown
aloft
alpha
alternate
altimeter
altitude
always
amateur
amateurs
amber
ambulance
America
American
amp
amplifier
amps
an
analog
Anchorage
and
Angeles
anger
angle
Annapolis
announcement
answer
antenna
Appalachain
Apple

1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
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1067
1068
1069
1070
1071
1072
1073
1074
1075

 Vyex LLC, 2003-2007

Appleton
approach
approaches
April
are
area
ARES (AIR-ees)
Arizona
Arkansas
armed
army
arrival
as
ask
Aspen
assign
assistance
association
astro
at
Atlanta
Atlantic
attempt
attention
audio
August
Augusta
aural
Austin
authorized
auto
automatic
autopatch
autopilot
auxiliary
available
ave
avenue

1076
1077
1078
1079
1080
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1084
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1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
31

average
B
back
backbone
backhaul
backup
bad
baker
Baltimore
band
Bangor
bank
Barbara
barometric
bars
Base
bath
Baton Rouge
battery
baud
Bavarian
bay
beacon
beam
bearing
Beautiful
Beaverton
beer
bell
below
Bernadino
between
big
Billings
Birmingham
Bismarck
Black
Bloomsburg
blowing
Blue
bluff
Boeing
Boise
bolt
boost
booster
Boston
bound
box
bozo

1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
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1132
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1148
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1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163

Bradford
brake
braking
branch
bravo
break
breaker
brew
Bridge
Bridgeport
Bristol
British
broadcast
broaden
Broadway
broken
Bronx
Brookfield
brown
Bryn Mawr
Bucks
Buffalo
building
burlington
busy
button
by
byte
C
C.T.C.S.S.
C.W.
cabin
calibrate
calibration
California
call
calling
callsign
calm
Cambridge
Camelback
Canada
Canadian
cancel
capacitance
capacitor
Cape May
car
Carbondale
cargo

7KDAB, Version 2.0, 19-Aug-2007

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1165
1166
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1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213

Carlos
Carmel
Carolina
carriage
carrier
Carson City
case
cast
cat
cathode
caution
Cedar_Rapids
Cedarburg
ceiling
Celsius
center
centi (CEN-tee)
centigrade
central
Cerro
Chambersburg
change
changeover
channel
charge
Charleston
Charlie
Charlotte
check
Chester
Cheyenne
Chicago
Chippewa_Falls
choice
circuit
Circus
cities
city
class
Claude
clear
clearance
climb
clinch
clock
close (adjective)
close (verb)
closed
Closure
clown

 Vyex LLC, 2003-2007

1214
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1234
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1256
1257
1258
1259
1260
1261
1262
1263
32

club
Coast
co-ax
code
coil
cold
college
Colorado
Columbia
Columbus
com
combiner
come
command
common
communication
Communications
compact
Compact_Flash
complete
Complex
compressor
computer
Concord
Concord (alternate)
condition
configuration
Conflicts
Conifer
connect
Connecticut
connector
constant
consumption
contact
contactor
control
controller
converging
converter
cool
cooling
copper
correct
county
course
coverage
cowl
craft
crane

1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313

Creek
crescent
cross
crosswind
crystal
Crystal Lake
Culvert
current
cycle
cylinder
D
D.T.M.F.
D.V.R.
damage
danger
danger, alternate
dark
data
date
Davenport
day
days
Dayton
December
decimal
decrease
decreasing
default
deflector
degree
degrees
dehydrator
de-ice
Delaware
delay
Delray
delete
delta
deluxe
Denver
department
departure
depleted
depth
Des Moines
Desert
detect
detected
detector
Detroit

7KDAB, Version 2.0, 19-Aug-2007

1314
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1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363

deviation
device
dial
dialed
dialing
did
Diego
diesel
digital
dinner
dip
direct
direction
directory
disable
disabled
disarm
discharge
disconnect
dish
dismal
dispatcher
display
divide
divided
do
dog
Doh!
door
doors
Dot
double
Dover
down
downlink
downwind
drive
driver
drizzle
DuBois
Dubuque
duhhhh
Duluth
dump
duplexer
dust
dynamic
E
E.H.F.
E.M.S.

 Vyex LLC, 2003-2007

1364
1365
1366
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1368
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1371
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1384
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1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
33

E.T.A.
Eagles_Peak
earth
east
easy
Eau_Claire
echo
Eckley
edison
Edmonton
efficiency
Egg_Harbor
eight
eighteen
eighth
eighty
electric
electrician
electricity
elevation
eleven
Elizabeth
Email
emergency
empty
enable
enabled
end
endless
energy
engage
engine
engineering
enter
equal
equipment
erase
erased
Erie
error
escape
estimated
evacuate
evacuation
evening
event
every
evil
exciter
exclusion

1414
1415
1416
1417
1418
1419
1420
1421
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1426
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1440
1441
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1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463

exist
existing
exit
expect
exterior
external
extreme
F
F.M.
fade
fail
failed
failure
fairport
False
Fan
Fancy Hill
farad
Farenheit
Fargo
Farm
fast
faster
fat
fault
February
Federal
feedline
feet
female
femto (phem-to)
Fernando
fest
Festival
field
fifteen
fifth
fifty
filament
file
filed
final
fire
first
Fish
five
flag
flair
flame
flameout

7KDAB, Version 2.0, 19-Aug-2007

1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513

flaps
flash
flat
flight
flight_watch
flood
flooded
floor
Florence
Florida
flow
fog
Fond_Du_Lac
For
Forest
Forever
Fork
Forkston
Fort
forty
forward
four
fourteen
fourth
fox
foxtrot
Francisco
Frankenmuth
(Michigan)
Frankfort
Franklin
Fredericton
free
freedom
Freeport
freeze
freezing
French
frequency
Fresno
Friday
friendly
from
front
fuel
full
fun
function
fuse
G

 Vyex LLC, 2003-2007

1514
1515
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1534
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1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
34

galley
gallons
gap
Garden
gas
gate
Gateway
gauge
gear
generate
Generator
Geneva
George
Georgia
Germantown
get
Gilbert
Glendale_Heights
glide
go
gold
golf
good
good afternoon
good evening
good morning
good night
good_bye
grain
Grand_Rapids
gray
greater
greater than
Green
Green_Bay
Greenwich (GREN-itch)
grid
ground
group
gun
gundish
gust
gusting_to
H
H.F.
hail
half
Halifax
ham
Hamburg

1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
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1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612

Hamfest
Hamvention
Hancock
hang
Happy_Holidays
hard
hardline
Harrisburg
Harry
Hartford
has
have
Hawaii
haze
head
heading
heat
heating
heavy
Helena
Heliax
hello
help
Henry
here
hertz
Hicks
high
higher
highway
hill
hold
home
Honolulu
horizontal
hospital
hot
hotel
hour
hours
Houston
how
HTTP colon backslash
backslash w w w dot
hundred
hunt
hurricane
I
I.R.L.P.
ice

7KDAB, Version 2.0, 19-Aug-2007

1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
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1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661

icing
Ida
Idaho
identification
identifier
identity
idle
if
ignite
ignition
Illinois
immediate
immediately
in
inactive
inbound
inch
increase
increasing
India
Indiana
Indianapolis
indicate
indicated
Indicator
Indigo
indoor
inductor
Industries
inflight
information
inner
input
inside
inspect
inspector
instruction
instrument
instruments
intakes
interface
Internet
interrupt
interstate
interval
Intranet
intruder
invalid
Iowa
iron

 Vyex LLC, 2003-2007

1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
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1677
1678
1679
1680
1681
1682
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1684
1685
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1687
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1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
35

is
Island
isolation
it
Item
its
J
Jackson
Jacksonville
Janesville
January
Jefferson
jig
Joaquin
John
Join
Joint
Juliet
July
junction
June
Juneau
just
K
KA9FUR
Kansas
Kellysville
Kenley
Kenosha
Kentucky
kerchunk
Kewaunee
key
Keyboard
kicks
kill
killer
kilo (KEE-lo)
king
knob
knots
L
Labrador
LaCrosse
Lafayette
Lake
Lambs
land
landing
Lansing

1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
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1731
1732
1733
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1736
1737
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1740
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1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761

large
Las Vegas
last
Lauderdale
launch
league
leak
lean
leave
left
leg
less than
let
level
Lexington
lick
lid
light
lights
Lima
limit
Lincoln
line
link
list
listen
little
Little Rock
load
localizer
lock
locked
log
logic
Loma Prieta
long
loop
Los
Los Angeles
Louisiana
Love
low
lower
Luis
lunch
Lycoming
Lynchburg
M
machine
Macon

7KDAB, Version 2.0, 19-Aug-2007

1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
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1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811

macro
Madison
magnetos
main
maintain
make
male
man
Manchester
Manhattan
Manitoba
Manitowoc
manual
many
March
Marine
Marines
mark
marker
Marquette
Maryland
Massachusetts
mast
master
May
Mayberry
mayday
me
mean
measure
medical
medium
meet
meeting
mega
Memphis
Menomonee_Falls
mercury
message
messages
meter
metering
meters
Mexico
Michigan
micro
microphone
microwave
mid
middle

 Vyex LLC, 2003-2007

1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
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1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
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1844
1845
1846
1847
1848
1849
1850
1851
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1853
1854
1855
1856
1857
1858
1859
1860
1861
36

midpoint
Mid-Wisconsin
mike
mile
miles
Military
mill
milli (MILL-ee)
million
Milwaukee
min
mini
Minneapolis
Minnesota
minus
minute
minutes
Mississippi
Missouri
mist
mixture
mobile
mode
modem
moderate
modify
modulation
module
Moline
monday
monitor
mono
Monroe
Montana
Montgomery
month
monthly
Montpelier
more
more than
morning
moron
moron , whoop whoop
moron alert
Morse
motor
Mount
mountain
mouse
move

1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911

moving
much
my
N
N 3 K Zed
N3KZ
Nan
Nancy
nano (NAN-oh)
Naperville
Narrows
Nashville
National
Navy
Near
Nebraska
negative
net
network
neutral
Nevada
New
New Hampshire
New Jersey
New Mexico
New Orleans
New York
Newark
Newfoundland
Newtown
next
night
nine
niner
nineteen
ninety
ninth
no
nominal
none
noon
Norfolk
Normal
Noroeste
North
North Carolina
North Dakota
North_Prarie
northeast
northwest

7KDAB, Version 2.0, 19-Aug-2007

1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
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1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961

Norton
not
notice
Nova Scotia
November
now
number
numbers
Nunavut
O
Oak
Obispo
oboe
obscured
ocean
o'clock
October
of
off
oh
Ohio
ohm
ohms
oil
okay
Oklahoma
old
Olympia
Omaha
Omni
on
one
only
Ontario
Opaca
open
operate
operational
operator
optical
or
Orange
Ord
order
Oregon
originate
oscar
Oshkosh
other
Ottawa

 Vyex LLC, 2003-2007

1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
37

ouch
our
out
outdoor
outer
output
outside
over
overcast
overload
overlook
overspeed
Owego (oh-WEE-go)
Oxford
P
P.L.
P.L.L.
P.M.
pacific
pad
page
pair
panther
papa
Parade
parallel
Parking
partially
pass
passed
password
patch
path
Paul
Peak
pearl
pellets
pending
Penn
Pennsylvania
Penobscot (penn-OBscot)
Peoria
per
percent
period
Perry
Peter
phase
Philadelphia

2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060

Phoenix
phone
pick
pico (PEE-ko)
Pierre
pilot
pine
pink
plan
plant
plate
play
please
plus
point
polar
polarization
polarized
police
pond
poor
port
portable
Portland
position
pots
pound
power
powerhouse
preamplifier
press
pressure
Prince Edward
Princeton
priority
probe
program
Propane
props
Providence
Provo
pull
pulse
pumps
Purple
push
put
Q
Quad
quarter

7KDAB, Version 2.0, 19-Aug-2007

2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110

Quebec
Quebec, French
Queen
question
R
R.F.
R.P.U.
RACES (RAY-sees)
Racine
radar
radial
radio
radios
Rail
rain
raise
Raleigh
range
RATE
Reading (RED-ing)
reading (REED-ing)
ready
rear
receive
receiver
recorded
recorder
Red
reflected
refueling
regenerate
relay
release
remark
remote
repair
repeat
repeater
report
request
rescue
reset
resistance
resistor
response
return
reverse
Rhode Island
rich
Richfield

 Vyex LLC, 2003-2007

2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
38

Richland
Richmond
Ridge
rig
right
ring
river
road
Roanoke
Rochester
Rockford
Rocky
Rocky Ridge
Rodman
Roger
rollout
Romeo
room
Route
Roxboro
RS232
run
running
runway
S
S.Comm
S.H.F.
S.S.B.
S.T.L.
S.W.R.
Sacramento
safe
Saint
Salem
Salinas
Salt Lake City
San
San Luis Obispo
sand
Sandy
Santa Fe
Santiago
Saskatchewan
Saturday
Savanna
save
scale
scatter
scattered
Schaumburg

2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210

schedule
scheduled
scheduler
school
Science
Scranton
screen
Sea
search
Seattle
second
seconds
security
select
selected
selector
self-destruct
semaphore
send
sensor
sent
September
sequence
serial
service
set
seven
seventeen
seventh
seventy
severe
sewage
seymour
Sheboygan
Shoals
short
shortwave
showers
shut
shuttle
side
Sierra
sighting
sigmet
sign
signal
silver
simulcast
single
Sioux Falls

7KDAB, Version 2.0, 19-Aug-2007

2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260

Site
six
sixteen
sixteenth
sixth
sixty
Skokie
Sky Warn
sleet
slope
slower
small
S-meter
smoke
snow
solar
sound
South
South Carolina
South Dakota
South Mountain
southeast
southern
southwest
space
spare
speak
Speaker
special
speed
spill
spirit
spoil
spoilers
spray
Springfield
square
squawk
squawking
squelch
St. Paul
stabilize
stabilizer
stable
stall
standby
star
starboard
start
State

 Vyex LLC, 2003-2007

2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
39

station
stationary
status
stereo
stern
stop
storm
street
strength
strobe
structure
studio
Sugar
Summerfest
Sunday
sunset
Superior
supply
Sussex
Swapfest
switch
switched
switching
Sword
sysop
system
T
T.R.L.
T.S.L.
Tahoe
tall
Tallahassee
tango
tank
Tare
target
Tassajera
taxi
teen
telemetry
telephone
temperature
ten
Tennessee
tenth
terminal
terminate
terminated
Territories
Territory

2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360

test
Texas
than
thank-you
that
thaw
the (long E)
the (short E)
their
then
thermal
thin
thinly
thirthird
thirteen
thirtieth
thirty
this
this_is
This_is_the
Thompson
thousand
three
thunder
Thursday
time
time_out
timer
times
today
Tollsville
tomorrow
tone
tonight
too
tool
Topeka
tornado
Toronto
total
touch
touchdown
Towanda
tower
town
track
tracking
trade
traffic

7KDAB, Version 2.0, 19-Aug-2007

2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410

transfer
transformer
transition
transmit
transmitter
treatment
Trenton
trigger
trim
trip
tripped
true
trunk
try
tube
Tuesday
Tug
Tunnel
Turbulence
TURN
turquoise
twelfth
twelve
twentieth
twenty
two
TYPE
U
U.P.S.
UHF
Uncle
under
unicom
uniform
Union
unit
United States
University
unlimited
unlock
until
Up
Uplink
use (noun)
use (verb)
used
Utah
Utility
V
V.F.R.

 Vyex LLC, 2003-2007

2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
40

V.H.E.
V.H.F.
V.O.R.
V.S.W.R.
Vaca
vacuum
Valley
Valley Forge
valve
variable
VCO
vector
vectors
Vera
verify
Vermont
version
Vertical
very
Victor
Victoria
video
Violet
Virginia
Virginia Beach
visibility
visual
voice
Voltage
volts
volume
vortac
W
W9HHX
WR3IRS
W.W.V.
W.W.W.
wait
wake
warning
Warren
Washington
waste
watch

2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504

water
Waterdale
Waterford
Watt
watts
Waukesha
Wausau
wave
way
we
weather
Web
Wednesday
week
weekday
weekend
Weekly
welcome
well
Welsh
West
West Virginia
what
whiskey
white
Wichita
Wide
Wilco
Wilkes-Barre
will
William
Williamsport
Willie
Wilmington
win
wind (noun)
window
windows
windspeed
Winnebago
Wisconsin
Wisconsin_Interstate_N
etwork
with

7KDAB, Version 2.0, 19-Aug-2007

2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546

within
without
Wolf
work
working
Works
World
Wrist
wrong
Wyoming
X
X-ray
Y
yada_yada_yada
Yagi
yankee
yard
year
Yearly
Yellow
yes
yesterday
Ynez
Yoke
York
you
Young
your
yours
you've
Yukon
Z
Zebra
zed
zero
zone
Zulu

2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584

2547

 Vyex LLC, 2003-2007

Test Tones
5000
5001
5002
5003
5004
5005
5006
5007
5008
5010
5011
5012
5020
5021
5022
5023
5024

7KDAB, Version 2.0, 19-Aug-2007

Duration
2 Sec.
2 Sec.
2 Sec.
2 Sec.
2 Sec.
2 Sec.
2 Sec.
2 Sec.
2 Sec.
280ms
385ms
200ms
900ms
2 Sec.
1 Sec.
2 Sec.
500ms

Tone
1kHz
1kHz
1kHz
300Hz
300Hz
300Hz
2kHz
2kHz
2kHz
Stardust
Duncecap
Piano Chord
MF Sequence
US Dialtone
UK Ringback
US Ringback
US Busy Tone

 Vyex LLC, 2003-2007

dBFS
0
-3
-6
0
-3
-6
0
-3
-6
-6
-6
-6
-6
-6
-6
-6
-6

Appendix B ASCII Character Chart

Dec

Char

Name

Dec

Char

Dec

Char

Dec

Char

0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31

^@
^A
^B
^C
^D
^E
^F
^G
^H
^I
^J
^K
^L
^M
^N
^O
^P
^Q
^R
^S
^T
^U
^V
^W
^X
^Y
^Z
^[
^\
^]
^^
^_

NUL
SOH
STX
ETX
EOT
ENQ
ACK
BEL, \a
BS, \b
TAB, \t
LF, \n
VT, \v
FF, \f
CR, \r
SO
SI
DLE
DC1
DC2
DC3
DC4
NAK
SYN
ETB
CAN
EM
SUB
ESC
FS
GS
RS
US

32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63

SP
!
“
#
$
%
&
‘
(
)
*
+
,
.
/
0
1
2
3
4
5
6
7
8
9
:
;
<
=
>
?

64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95

@
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
[
\
]
^
_

96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127

`
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
x
y
z
{
|
}
~
DEL

7KDAB, Version 2.0, 19-Aug-2007

 Vyex LLC, 2003-2007

Appendix C – Morse Code Characters

A
B
C
D
E
F
G
H
I

·—
—···
—·—·
—··
·
··—·
——·
····
··

J
K
L
M
N
O
P
Q
R

·———
—·—
·—··
——
—·
———
·——·
——·—
·—·

Period [ . ]
Comma [ , ]
Question Mark [ ? ]
Apostrophe [ ‘ ]
Exclamation Mark [ ! ]
Forward Slash [ / ]
Open Parenthesis [ ( ]
Close Parenthesis [ ) ]
Ampersand [ & ]

7KDAB, Version 2.0, 19-Aug-2007

S
T
U
V
W
X
Y
Z
0

·—·—·—
——··——
··——··
·————·
—·—·——
—··—·
—·——·
—·——·—
·—···

···
—
··—
···—
·——
—··—
—·——
——··
—————

1
2
3
4
5
6
7
8
9

Colon [ : ]
Semicolon [ ; ]
Double Dash [ = ]
Plus [ + ]
Hyphen, Minus [ - ]
Underscore [ _ ]
Quotation Mark [ “ ]
Dollar Sign [ $ ]
At Sign [ @ ]

 Vyex LLC, 2003-2007

·————
··———
···——
····—
·····
—····
——···
———··
————·

———···
—·—·—·
—···—
·—·—·
—····—
··——·—
·—··—·
···—··—
·——·—·

Appendix D Version History
Product Firmware Revisions
Product firmware revision history is available on the website support page: http://www.vyex.com/support.html

User Manual Revisions
1.0c – 1-Sept-2003
•

First General release.

1.2 – 21-Oct-2003
•
•

Added new command word 9710
Corrected sample rate limitations for WAV files. ADPCM will support a maximum of 16kHz, not 22.05kHz as
previously stated.

1.3 – 10-Dec-2003
•
•
•

Added PCB revision “E” schematic.
Added daughter board schematic and installation instructions.
Added commentary regarding bugs fixed in 7K firmware version 2.04a

1.5 – 9-Feb-2004
•
•
•

Added information regarding speed factor command 9702
Modified information regarding DIR command to reflect new card identifier information
Corrected example given for word 9710 and clarified example in 9701.

1.5a – 17-Feb-2004
•

Added version release notes for 7K firmware version 2.04b

1.6 – 20-Mar-2004
•

Added version release notes for 7K firmware version 2.04c & 2.04d

1.6a – 12-May-2004
•

Updated pictures and schematic to depict current PCB revision.

1.7 – 25-July-2004
•

Added information regarding 2.04e 7K firmware

1.7a – 13-May-2006
•

Added information regarding 2.04f 7K firmware

1.8 – 14-Aug-2007
•

Added information regarding version 7KDAB version 1.8 firmware

2.0 – 19-Aug-2007
•

Added information regarding version 7KDAB version 2.0 firmware

7KDAB, Version 2.0, 19-Aug-2007

 Vyex LLC, 2003-2007

Appendix E 7K Version 2.04 Release Notes

Disclaimer
While this software is derived from SCOM’s Version 2.03b firmware, it is not supported by SCOM. Any support issues
related to this software need to be directed to Vyex LLC.
The copyright for this software is still held by SCOM and it is SCOM’s sole discretion that determines how this firmware
may be made available.

Overview
This firmware version contains new functionality to better integrate the 7K Digital Audio Board (DAB) with the operation of
the repeater controller.
In addition to DAB specific additions, additional controller enhancements were introduced and are presented in this
appendix.

7KDAB, Version 2.0, 19-Aug-2007

 Vyex LLC, 2003-2007

New Commands

{PW} 16

Stop playback of current speech word

Issuing this command will kill a spoken word currently in progress. It’s intent is to provide a means of halting a long
informational message.

{PW} 24 xxxx

Remove Command From Macro

Removes last command from Macro ‘xxxx’.
Reports “OK” if successful, or “? LAST” if there is only one command left in the macro.
To delete the last command in the macro, you need to delete the macro and re-create it.

{PW} 36 T F xxxx

Modify ID Timers

T = ‘1’ for Transmitter 1, or ‘2’ for Transmitter 2
F = function code
0
Terminate ID timer activity. If ID is pending, it is cancelled.
1
Set ID timer to maximum. ID is NOT triggered.
2
Set ID timer to maximum. ID is immediately triggered.
3
Ensure Normal ID cycle. Start’s ID timer if not already running, otherwise this command has no
effect.
4
Ensure Final ID cycle. Start’s ID timer if not already running, and sets the pending ID flag as
though user activity had occurred. If timer was running, this command has no effect.
5
If ID timer is not running, set the ID timer to maximum and execute macro ‘xxxx’
xxxx

= Macro name for function 5

Example use showing a friendly on the hour ID:
{PW} 28 01 8001 99 99 06 59
{PW} 28 02 8002 99 99 21 01

;enable on the hour ID’s starting at 6:59am
;disable on the hour ID’s ending at 9:01pm

{PW} 20 8001 {PW} 28 00 4000 99 99 99 00
{PW} 20 8002 {PW} 28 00

;create hourly scheduler setpoint
;delete hourly scheduler setpoint

{PW} 20 4000 {PW} 36 5 4001

;if ID timer is not running, call macro 4001
;and start the ID timer running

; Macro 4001 speaks “KA9FUR repeater” and if interrupted by user activity will revert to “KA9FUR” in CW
{PW} 20 4001 {PW} 15 9981 9961 000 0260 0001 0335 0149 0540 0401 0421 9902 54 59 0852 67 20 10 09 15 30 27

7KDAB, Version 2.0, 19-Aug-2007

 Vyex LLC, 2003-2007

{PW} 49 90/91/92/93 xx

Message Handler Initial Message Delay

Timer’s 90 through 93 now allow the user to determine the initial message delay value for individual message types.
In previous versions, these timer delay values were fixed at 1.0 seconds. The user can now specify a timer value of zero
to 5.0 seconds with 100ms resolution.
Timer:
90 – CW pre-message delay associated with special message character ‘54’
91 – Beep pre-message delay associated with special message character ‘54’
92 – Paging pre-message delay that is always present
93 – Speech pre-message delay associated with special word ‘0000’
These timer delay’s are utilized only at the beginning of a new message sequence, and with the exception of a paging
sequence, the delay only occurs if the message begins with the special message character or word.
Examples:
{PW} 49 90 15
{PW} 49 93 20

;set CW initial delay to 1.5 seconds
;set speech initial delay to 2.0 seconds

;send CW message “KA9FUR” with an initial delay
{PW} 15 9900 54 59 0852 67 20 10 09 15 30 27
;send speech message “KA9FUR repeater” with an initial delay
{PW} 15 9960 0000 0260 0001 0335 0149 0540 0401 0421

{PW} 49 94/95 xx

Logic output pulse duration

These timers were introduced in version 2.04f.
Timer 94 now sets the logic pulse ON duration, and timer 95 sets the logic pulse OFF duration. Timer units are in 10ms
increments with the minimum value of 10ms and the maximum of 2540ms.
The pulsed output duration may vary up to +/-10ms.
NOTE: If new firmware is installed in a controller that previously contained an older 2.04 variant AND the
controller is not cold initialized, the timer values will default to zero, meaning the pulsed outputs will not work. In
order to retain backward compatibility either manually set both of the timer values to ‘50’ (500ms), OR cold
initialize the controller.
Examples:
{PW} 49 94 50
{PW} 49 95 10

7KDAB, Version 2.0, 19-Aug-2007

;set logic output pulsed on delay to 500ms
;set logic output pulsed off delay to 100ms

 Vyex LLC, 2003-2007

{PW} 76 ff yyyy (zzzz)

IF-THEN-ELSE

‘ff’ is the feature to be tested
‘yyyy’ is the macro to be executed if the feature tests non-zero / true.
‘zzzz’ is the optional macro to be executed if the feature tests zero / false.

Function ‘ff’
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32

Item Tested
7KDAB installed
User Input 1
User Input 2
User Input 3
User Input 4
User Input 5
User Input 6
User Output 1
User Output 2
User Output 3
User Output 4
User Output 5
User Output 6
User Output 7
Rx1 COR
Rx1 CTCSS
Rx2 COR
Rx2 CTCSS
Rx3 COR
Rx3 CTCSS
PTT 1
PTT 2
Land Line Busy Input
Land Line Ring Input
Land Line Busy Output
Tx1 ID Timer
Tx1 Post Activity Timer
Tx1 Drop Out Timer
Tx1 Courtesy Timer
Tx1 Unkey Delay Timer
Rx1->Tx1 Timeout Timer
Rx2->Tx1 Timeout Timer
Rx3->Tx1 Timeout Timer

Function ‘ff’
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64

Item Tested
Rx1 Anti-Kerchunk Timer
Rx1 Anti-Kerchunk Rearm Timer
Rx1 Timeout Penalty Timer
Rx1 Activity Timer
Tx2 ID Timer
Tx2 Unkey Delay Timer
Rx2 Activity Timer
Rx3 Activity Timer
Autopatch Redial Timer
Autopatch Timeout Message Timer
Autopatch Call Duration Timer
Landline Control Timer
Landline Ringout Message Timer
Landline Timeout Warning Timer
Landline inter-ring timer
User Timer 1
User Timer 2
User Timer 3
User Timer 4
User Timer 5
User Timer 6
User Timer 7
User Timer 8
User Timer 9
User Timer 10
User Switch 1 (cmd 63 92 x)
User Switch 2 (cmd 63 93 x)
User Switch 3 (cmd 63 94 x)
User Switch 4 (cmd 63 95 x)
User Switch 5 (cmd 63 96 x)
User Switch 6 (cmd 63 97 x)
User Switch 7 (cmd 63 98 x)

Example:
{PW} 76 03 2001 2000

;test user input 3, if input is active then execute macro 2001,
;otherwise execute macro 2000.

7KDAB, Version 2.0, 19-Aug-2007

 Vyex LLC, 2003-2007

New Switches
{PW} 63 16 x

Daylight Savings time correction

This switch defaults to ‘off’.
If switch is turned on, one hour will be added to the Real Time Clock at 2:00am on the first Sunday in April, and one hour
will be subtracted at 2:00am on the last Sunday in October.

{PW} 63 19 x

Ignore Landline Busy Input

This switch defaults to ‘off’.
If switch is turned on, the landline busy input will be ignored by the interconnect routines and becomes available for the
user to utilize as a generic user input with the commands that are otherwise already available.

{PW} 63 33 x

Enable “OK” Command Responses

{PW} 63 34 x

Enable “?ERR” Command Responses

These two switches default to ‘on’.
Note: Switch 02 still acts as a master enable/disable function for command responses.

{PW} 63 35 x

Courtesy message can be queued during message playback

This switch defaults to ‘off’.
Turning this switch on will, for example, allow a courtesy message to play after the initial ID.

{PW} 63 36 x

Suppress command responses within macro execution

This switch defaults to ‘off’.
Turning this switch on will, inhibit simple (i.e. “OK”, and “ERR?”) command responses when commands are executed from
within a macro.
This switch command was introduced in 2.04e.

7KDAB, Version 2.0, 19-Aug-2007

 Vyex LLC, 2003-2007

{PW} 63 92 x

User Soft Switch 1

{PW} 63 93 x

User Soft Switch 2

{PW} 63 94 x

User Soft Switch 3

{PW} 63 95 x

User Soft Switch 4

{PW} 63 96 x

User Soft Switch 5

{PW} 63 97 x

User Soft Switch 6

{PW} 63 98 x

User Soft Switch 7

All user switches default off and survive power failure. The user can test switch conditions with new user command 76.

7KDAB, Version 2.0, 19-Aug-2007

 Vyex LLC, 2003-2007

Changed Commands
{PW} 02 f …

CTCSS Encoder

Function code ‘f’
0
1
2

7
8 ‘xxx’
9 ‘x’

Description
CTCSS Encoder OFF
CTCSS Encoder ON continuously when transmitter is active
Tx1 coupled OFF delay.
Turns on when Transmitter goes active, and turns off when
delay timer expires.
Receiver for Tx1 coupled OFF delay.
Turns on when any receiver with a path to Tx1 goes active,
and turns off when delay timer expires.
Receiver for Tx1 coupled loss OFF delay.
Turns on when any receiver with a path to Tx1 is active, and
upon signal loss starts delay timer. When delay timer expires,
encoder is turned off.
Zero’s the dynamic timer value, forcing the encoder to
immediately turn off.
Set’s the default timer value to ‘xx.x” seconds. Valid range is
0 to 12.7 seconds.
Associates user output ‘x’ with the CTCSS encode function. 0
disables feature, 1-6 associate a User output with this feature.

Examples:
Encode during user transmissions and hold the encoder active for an additional 200ms after receiver squelch closes
to allow for mobile flutter. Use this example for making your repeater more compatible with an on air linking method,
such as IRLP, that relies on the CTCSS encoder following user activity.
{PW} 02 8 2
{PW} 02 9 3
{PW} 02 4

;set timer value to 200ms
;(optional) associate user output 3 with CTCSS encode function
;set mode 4 to cause CTCSS to be encoded during all user transmissions

Function ‘7’ could be used to disable the CTCSS encoder after a courtesy message is sent.
{PW} 02 8 127
{PW} 02 4
{PW} 20 1234 {PW} 02 7
{PW} 31 10 9910 74 09 9999 1234

7KDAB, Version 2.0, 19-Aug-2007

;set timer to maximum value
;select mode 4
;create macro 1234 with cmd 02 function 7
;60ms, 440Hz beep followed by macro 1234

 Vyex LLC, 2003-2007

{PW} 40 r xxx

Set Transmit Timeout Timers

The new ‘r’, receiver, parameter allows the user to independently set different transmit timeout timer values based on the
active receiver(s). Valid values are 1, 2, or 3.
The valid range for ‘xxx’ remains the same. A value of ‘0’ (zero) disables the timeout timer for a given receiver.
The timeout logic was changed such that each receiver now has its own timeout timer. Once ANY timer is started, it is not
reset until the courtesy message event occurs.
Command 10 will reset ALL timeout timers simultaneously.

{PW} 89 …

Select DTMF Priority/Scan

This command was changed to cause the DTMF decoder immediately re-prioritize the DTMF inputs rather than waiting for
a high priority device to release it.

{PW} 50 0/1 99

Review Initial and Normal Tail ID’s

This command now only sends the tail ID message rather than causing the full ID to be sent. The change was necessary
due to some code restructuring related to how these messages are stored internally.

{PW} 96 t xx

Set DTMF Mute Delay

The DTMF muting logic has been changed to utilize two separate mute delay timers. One timer applies only to the first
DTMF digit, the other timer applies to all subsequent digits. Setting the mute time for the first digit relatively short or to
zero, and the mute timer for all subsequent digits substantially longer will provide better performance in situations where
decoder falsing has been a problem.
st

When a “*” or “#” command terminator is received, the 1 digit delay timer value will be loaded into the mute timer, thus
un-muting the audio more quickly upon command completion.
A ‘t’ (timer) value of zero (0) allows the first digit delay timer to be set, and a value of one (1) allows the delay timer for all
subsequent digits to be set.
The timer value ‘xx’ is set in 100ms units and can range from zero to 2.5 seconds.
On a cold reset, both timers default to 500ms.
Example:
{PW} 96 0 3
{PW} 96 1 25

;set 1 digit delay timer to 300ms
;set subsequent digit delay timer to 2.5 seconds

{PW} 63 xx 0/1/2/3

Set User Switch

In version 2.04e, if the switch values of ‘2’ or ‘3’ are used, they will turn the corresponding switch ‘off’ or ‘on’ but will not
send any command response. This addition was made for those who wish to eliminate command responses from within
macros, but who do not wish to use the new functionality in user switch 36 to suppress all command responses from
within a macro.
7KDAB, Version 2.0, 19-Aug-2007

 Vyex LLC, 2003-2007

New Message Types
Four new message types were added to support interruptible speech and Morse messages.
9901
9902
9911
9912
9961
9962

- CW Primary
- CW Secondary
- Beep Primary
- Beep Secondary
- Speech Primary
- Speech Secondary

Primary messages will cease playback if a receiver with its path enabled to a transmitter associated with the message
playback is active at the time the playback commences, or any time during message playback.
Secondary messages will only play in circumstances when a primary message would not.
Examples:
This message would speak “KA9FUR Repeater” but if a receiver went active would revert to “KA9FUR” in CW.
{PW} 15 9981 9961 0260 0001 0335 0149 0540 0401 0421 9902 59 0852 67 20 10 09 15 30 27

The following set’s the courtesy tone as mixed on Tx1 as a secondary beep message such that any activity on the
repeater will cause the courtesy message to be discarded. When the new switch “35” is enabled, courtesy messages will
be queued when the repeater is initially activated and an ID is sent. If the resulting courtesy message is not sent as a
“primary” message, then the courtesy message would be sent immediately after the initial ID even if there was user
activity present.
{PW} 31 10 9981 9911 76 55 57 0459 12 57 0512 04

;set courtesy message

Operational Changes
Added area codes 877 and 866 to the toll free table.
Command 30 and 80 will now accept 1 or 2 digit timer values.
Command 32, transmitter drop out delay, will now accept 1, 2, or 3 digit timer values of up to 12.7 seconds.
Commands 40, 65, and 79 will now accept a single zero rather than requiring 3 zeros.
A new courtesy message will not be placed in the global message queue if there is still a courtesy message pending in
the queue. Note that this change only applies to the courtesy message ({PW} 31 10…) and that the courtesy event macro
will still be triggered without regard as to whether the courtesy message has been sent or not.
The speech board timeout timer is now 10 seconds rather than the 25 seconds in previous versions (even though it was
documented as being 5 seconds it was really 25 seconds).
The number of permissible macros has been increased to 340.
Fixed CW messages were modified to include the special initial delay character ‘54’ at the beginning of the message such
that an initial delay is present.

7KDAB, Version 2.0, 19-Aug-2007

 Vyex LLC, 2003-2007

Bug Fixes and Changes
Version 2.04
Special Messages 9860 through 9895 will no longer cause the controller to crash.
Fixed a problem that could cause the hardware watchdog to trip during cold initialization.
Note: When upgrading from one version 2.04 variant to another, there is no need to cold initialize the controller.

Version 2.04a
This version fixes the macro corruption problem in commands 00, 02, 40, 50, 76, and 96.
A potential problem related to the courtesy beep was addressed. There was a potential that could require the controller to
be cold initialized in order for the controller to once again generate a courtesy beep message.
An initial delay character, 54, was added to command 33’s message playback to allow more time for the control user to
hear the entire command response.

Version 2.04b
This version fixes a problem with command 76. Some of the IF tests were incorrectly testing some byte wide variables as
words and vice versa. Due to the nature of the bug, there is no way to tell, at any given movement, which tests would be
made incorrectly.
Command 76 was also changed to queue any resulting macro at the head of the work queue rather than at the end of the
queue. This allows the immediate execution of the macro, which in turn also allows the nesting and stacking of IF tests.
Command 65 was broken in the transition from 2.03b to 2.04 and was not setting the timer to the user supplied value.
The command now works correctly.

Version 2.04c
This version fixes additional problems with command 76. The tests of hardware inputs did not work correctly and always
returned TRUE.
As a result of the changes in 2.04c, when this version is run for the first time, all appropriate input transition events will
execute once on power up. This is due to the way that the last known input state is stored in non-volatile memory.

Version 2.04d
This version fixes an old bug in the Remote Base software that was exposed as a result of unrelated changes made in
2.04 to the way that the interrupt time slicing works. Specifically when entering a command such as RBPW 41 147000 2
the controller would incorrectly return ?ERR 2 rather than allowing the command to execute.

Version 2.04e
This version added additional functionality to command 63 to suppress command responses from within macros, as well
as new user switch 36, which modifies the behavior of command responses as a result of command execution from within
a macro.

7KDAB, Version 2.0, 19-Aug-2007

 Vyex LLC, 2003-2007

Version 2.04f
•
•

•
•
•

Fixed a problem introduced in version 2.04a related to being able to queue multiple courtesy beep messages while a
message playback was already in progress.
Added separate time-out timer reset delay timers to prevent a situation where a short transmission on one receiver
could prematurely cause a time-out of a receiver with a longer time-out time set. An example of this would be if the
time-out timer for Rx1 was set to 30 minutes, and Rx2 was set to 3 minutes, if a long transmission was in progress on
Rx1 and a brief transmission occurred on Rx2, the repeater would time out based on the shorter 3 minute time even
though Rx2 had gone inactive. The new method will allow the individual time-out timers to be reset after the courtesy
delay period has elapsed even though a courtesy message was not necessarily generated… in other words, the
courtesy reset time is still imposed on individual receivers even though a different receiver still remains active.
Added programmable logic output pulse on/off duration periods.
Added new feature such that if the internal INIT button is held for 5 seconds AFTER power up has occurred, the
Master Password will be reset to default (99) and the Warm Reset message will be sent as an acknowledgement.
Useful for regaining control if the password(s) are lost, forgotten or mistakenly changed.
The software version runtime variables for CW (9898) and Speech (9899) now include the version suffix as part of the
message.

7KDAB, Version 2.0, 19-Aug-2007

 Vyex LLC, 2003-2007

Appendix F Schematics
Revision F

7KDAB, Version 2.0, 19-Aug-2007

 Vyex LLC, 2003-2007

Revision E

7KDAB, Version 2.0, 19-Aug-2007

 Vyex LLC, 2003-2007

Revision D1

7KDAB, Version 2.0, 19-Aug-2007

 Vyex LLC, 2003-2007

Daughter board used with Digital Audio Boards prior to revision “E”, to correct speech bus voltage overshoot problem.

7KDAB, Version 2.0, 19-Aug-2007

 Vyex LLC, 2003-2007

Appendix G – Daughter PCB Installation

The daughter board must be used in conjunction with 7KDAB revisions A through D1.
The board is properly installed when the writing on the printed circuit board is correctly oriented when viewed from the
front of the controller.
When installing the daughter board, take care to properly align the female header connector with the Speech connector
on the 7K main printed circuit board. Extreme damage can occur if any of the ribbon connectors are misaligned or
if the daughter board is plugged in 180 degree’s from its proper orientation.

7KDAB, Version 2.0, 19-Aug-2007

 Vyex LLC, 2003-2007

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