Page 1
OPERATING INSTRUCTIONS
for
TELEREADER (CW, Baudot and ASCII)
MODEL CWR 685E
This manual is only for Telereader version CWR-685E with keyboard encode ROM code name "K1"
(dark grey keys only)
New features with firmware version 1.5 are an page 12, 16-17, 19
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CW685E (CWR6850) TELEREADER
CONTENTS:
CHAPTER 1. PANEL FUNCTIONS ...................................................................................... 3
1.1 Front Panel ....................................................................................... 3
1.2 Rear Panel ........................................................................................ 5
CHAPTER 2. METHOD OF USE ......................................................................................... 7
2.1 Reception of CW ............................................................................... 7
2.2 Reception of Baudot .......................................................................... 9
2.3 Reception of ASCII ............................................................................ 10
CHAPTER 3. METHOD OF TRANSMISSION ....................................................................... 10
CHAPTER 4. KEYBOARD MANIPULATION .......................................................................... 11
CHAPTER 5. RATING ...................................................................................................... 21
CHAPTER 6. REPLACEABLE KEYBOARDS .......................................................................... 24
CHAPTER 7. CONNECTABLE PRINTER .............................................................................. 26
CHAPTER 8. INPUT AND OUTPUT CONNECTION DIAGRAM ............................................... 28
CHAPTER 9. PARTS LAYOUT ON PRINTED CIRCUIT BOARD ............................................... 29
CHAPTER 10. DISPLAYS ................................................................................................... 32
CHAPTER 11. DESIGNATION OF ASCII FUNCTION CODES .................................................. 35
CHAPTER 12. CORRESPONDENCE CHART OF DISPLAY CHARACTERS AND CODES (CW) ........ 36
CHAPTER 13. KEYBOARD CONTROL COMMAND LIST .......................................................... 37
CHAPTER 14. SIMPLIFIED CONNECTIONS TO THE CWR685E (CWR6850) ............................ 41
CHAPTER 15. PRECAUTIONS WHEN USING WITH ICOM HF TRANSCEIVER .......................... 42
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Digitized by DC7XJ XII.19
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1. PANEL FUNCTIONS
SENDAUTORECEIVE
SEND:
AUTO:
RECEIVE:
This is a position for test 'to force the unit to transmission mode.
Usually set to this position.
When set in this position only, transmission and reception can be
changed over from the keyboard.
Set also in this position when the unit is used for reception only.
This is a position for test to force the unit to reception mode.
1.1 FRONT PANEL
POWER LED Displays when the power source is turned on.
CW LED For CW code transmission and reception. Flickers along with monitor sound.
Not interpreted if it is not lit when receiving.
If lighting when transmitting, the CW keying output is turned on simultaneously.
MARK, SPACE LED Lights up when the AF input coincides with the MARK or SPACE frequency
when receiving RTTY.
Slide VR controls
INPUT Volume control of input signal monitor speaker.
VOLUME Volume control of monitor oscillator.
SPEED A sliding VR for adjusting the transmission speed when transmitting CW.
Since the CW reception speed automatically follows up the speed of the
transmitting side, it is not affected by the set speed of this VR.
FINE A sliding VR for fine adjustment of tuning frequency of the space filter when
receiving RTTY, by using the built-in demodulator.
Lever switches POWER
POWER power switch.
Pushbutton switches
RESET-ON Erase receive screen, return cursor to initial receive position, display 1st dis-
play page. Clear printer output register and erase memory transmission buffer.
FILTER-ON Turns an CW PLL tracking filter; gives narrow bandwidth CW receive re-
sponse.
SPACE-NARROW Reduces CW reception interpretation time of word spacing by 25 % at NAR-
ROW position, and the cursor moving speed is accelerated.
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CW ID ACW ID B
CW ID A:
CW ID B:
When transmitting CW ID, the AFSK output performs frequency
shift keying.
When transmitting CW ID, the AFSK output performs 800 Hz
mark tone keying.
When receiving CW, CW ID A displays alphabetic letters, and CW ID B ex-
Panel character
45.5505775110
300
Actual baud rate
45.45
50
56.88
74.2
110
300
presses codes such as BT and BK by special characters.
┌ DISPLAY ┐
PAGE Cycle display pages an screen.
MODE A \ MODE B MODE A: Page cycles between pages 0 and 1; used for receive only.
MODE B: Page cycles through all four pages; used for TX/RX.
CW-RTTY Selects between CW (Morse code) and RTTY (Baudot or ASCII) codes.
ASCII \ BAUDOT Selects between the ASCII (8 unit) and BAUDOT (5 unit) RTTY codes at
RTTY mode.
LTR-ON Restores Baudot receive to LTRS case.
FIG-ON Restores Baudot receive to FIGS case.
LOCK UOS \ ON In Baudot gives return to LTRS case after reception of a space character. In
ASCII locks receive and transmit characters to upper case only.
NOR \ REV Reverses the sense of received signals - does not change sense of transmit-
ted tones.
BAUD Six interlocked switches set data rate for RTTY transmit and receive to:
45.45, 50.0, 56.88, 74.2, 110, 300 baud.
(unit: baud)
SHIFT Three interlocked switches set RTTY transmit and receive shift to 170, 425 or
850 Hz of built in demodulator, difference from space filter frequency (shift
width), and shift width of AFSK output frequency, when communicating
RTTY. The space frequency is higher than the mark frequency by the portion
corresponding to the shift width.
TONE HIGH: Select RTTY "HIGH" tones for transmit and receive; mark = 2,125 Hz.
LOW: Select RTTY "LOW" tones for transmit and receive; mark = 1,275 Hz.
RX-TAPE This is a selector for AF input terminals.
RX: Audio signal connected to AF IN - RX jack is interpreted by the CW and RTTY
demodulators.
TAPE: Audio signal connected to AF IN - TAPE jack is interpreted by the CW and
RTTY demodulators.
Local "echo" of transmitted data is suppressed, giving full duplex operation.
If the switch is set to the RX side in the event of echo-back, the transmitted
code is written again in the transmission buffer.
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1.2 REAR PANEL
SW OUT FSK
(REMOTE CONTROL
KEYING OUT)
The output of transistor switch to ground to switch direct.
Voltage = +50 VDC maximum
Current = 140 mA maximum
Isolation relay or circuit required to switch negative voltage control lines.
BRIGHT Adjusts the brightness of the built-in CRT.
VIDEO OUT The output terminal used when displaying in the external monitor CRT, be-
sides the built-in CRT. It can be connected to the CRT display of the composite video signal system.
EXT SP The input selected by the RX-TAPE switch on the front panel is delivered
from this terminal.
The output level is adjusted by the INPUT knob on the front panel. When
this terminal is used, the built-in input monitor speaker is separated.
Connect the external speaker linked to the transceiver to this terminal.
PHONE The oscillation output from the built-in oscillator is delivered from this termi-
nal. The output level is adjusted by the VOLUME knob on the front panel.
When this terminal is used, the speaker for the built-in monitor oscillation
sound is cut off. Instead, a speaker of 1 W, 8 Ohms or higher can be connected to this terminal.
TELEGRAPH KEY For connection of keys for Morse code transmission. When the keys are oper-
ated, the CW terminal in the SW OUT CW terminal becomes ON, and the 800
Hz monitor sound oscillates, and the CW LED lights up at the same time.
FSK DEMOD INT: Internal FSK demodulator used or reception of RTTY.
INT \ EXT EXT: Internal FSK demodulator disconnected and received data interpreted from
the FSK TTL IN connector.
Keep at INT Position except when using an external demodulator.
FSK TTL IN When using external demodulator, without using the built-in demodulator,
the TTL level signal from the external demodulator is fed to this terminal.
Set the mark to H level, space to L level. Use this terminal when connecting
KCS or BELL 103 demodulator or the like.
FSK TTL OUT The signal to an external AFSK modulator is delivered with the mark at H le-
vel and space at L level.
Use this terminal when connecting KCS or BELL 103 modulator or the like.
Regardless of the FSK DEMOD INT-EXT switch, the signal is delivered simultaneously with SW OUT FSK.
AF OUT The audio signal fed from AF IN RX or AF IN TAPE is selected by the RX-
TAPE selector on the front Panel, and is delivered. When AF IN terminal is
not used, this terminal can be used as AF IN.
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SW OUT FSK
(FSK CONTROL
KEYING OUT)
The output of transistor switch to ground to switch direct.
FSK keying circuit ("SW.OUT - FSK")
Voltage = +100 VDC maximum
Current = 20 mA maximum
Standard: "ON" = space; "OFF" = mark; may be reversed with internal jumper JP-1.
SW OUT CW
(CW TRANSMISSION
KEYING OUT)
A transistor switch connected to the key connection terminal of the
transceiver commonly used for both +keying and –keying.
It can be used directly at ±100 V but since there is a residual voltage of
about 0.8 V at the time of +keying, connect a relay to outside if switching is
impossible.
OSCILLO
SPACE \ MARK
When receiving RTTY, with the built-in demodulator, when this output is
connected to the oscilloscope, tuning operation becomes easy. Use the
oscilloscope in X-Y scope mode.
AFSK GAIN Controls output level to both AFSK OUT -TX and -TAPE connectors.
AFSK OUT TX When transmitting RTTY, with a transceiver without FSK input, and used A2
or F2 Mode CW, this output is connected to MIC terminal.
AFSK OUT TAPE Used when recording AFSK output into a tape recorder.
AF IN TAPE Connected to the output terminal of tape recorder.
AF IN RX Connected to the external speaker terminal of transceiver.
FS Use 2 A small-size, glass tube fuse.
DC13.8V The power source input terminal. Connect a power supply of +12 to 14.5 V
DC. The current consumption is about 1.65 A.
If the power source is connected in wrong polarity, the fuse melts down.
PRINTER The data output terminal for the printer of Centronics Compatible Parallel In-
terface. Received and transmitted text may be printed an the ASCII printer.
KEYBOARD Connect to the furnished keyboard.
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2. METHOD OF USE
When turning on the power, do not set the send-autoreceive selector to SEND position, but keep it
in other position.
In the CW mode, do not press the clear button while this selector is placed in SEND position.
Immediately after the power switch is turned on, a "P" mark is displayed in the status display area
to show it is ready to deliver the printer data.
Method of reception
2.1 Reception of CW
Set the switches as follows:
SEND -AUTO -RECEIVE: AUTO CW-RTTY:
Adjust the reception sound volume to a proper level by means of INPUT knob and AF
control on the transceiver. In a receiver set with CW filter, put the CW filter in effective Position.
Turn on power switch, and press RESET button. Then POWER LED lights up, and about
15 seconds later, page 1 is displayed in the built-in CRT. As for the contents of display, see
the paragraph relating to the screen display types. Right after turning on the power, a "P"
mark appears in the status display area to show it is ready to deliver the printer data. Also,
at the right end of this area, a negative character 1 is displayed to indicate the page number on display.
If no display appears on the screen, turn the BRIGHT control knob on the rear panel.
Since the AF input unit of this machine is adjusted to the center frequency of 800 Hz,
turn the main dial, RIT, and clarifier of the transceiver to set the reception sound to 800 Hz,
then the CW LED flickers along with the signal, and the monitor oscillation sound is delivered. The monitor oscillation sound volume can be controlled by the VOLUME knob. If the
CW LED does not flicker along with the signal, normal interpretation is not made.
If interference exists, turn on the FILTER switch.
When receiving codes of narrow character space, set the SPACE-NARROW switch to the
NARROW side.
Characteristics of AF input unit and selection of filter
The AF input unit of this machine has two kinds of band pass filters, using OP amplifier
and PLL IC.
When the front panel FILTER switch is turned on, the signal is amplified by an active
BPF of center frequency 800 Hz, –6 dB band, 150 Hz, and is converted into a digital signal
by PLL filter of center frequency 800 Hz, lock range ±80 Hz.
When the filter switch is turned off, the PLL filter does not operate as narrow band filter,
but works as tone decoder with built-in noise filter.
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Characteristic chart
Use of PLL filter for telegraph
This PLL filter, unlike an ordinary audio filter, is designed to lock the PLL at the frequency
of input frequency to convert the lock into switching action (digital signal), thereby operating the monitor oscillator. Because of this method, it is a telegraph-only filter of infinite S/N
ratio, not delivering oscillation sound except in the lock range.
Since the PLL filter has a very high selectivity, it is deviated from the lock range of PLL if
the frequency drift of the own station or partner station exceeds the filter band. In such a
case, fine-adjust by means of the clarifier (RIT).
Control the monitor sound volume properly by turning the VOLUME control knob.
Code interpretable range and word-space
A standard code consists of dots and dashes expressed by 1:3 in length. This equipment can interpret, with respect to 1 unit of a dot, up to 2 to 4 units of a dash. That is, a
dash shorter than 2 units is regarded as a dot, and a corresponding character is displayed.
Example:
1 : 3 1 : 1.9
A I
A dash longer than 4 units may be correctly interpreted, but the code coming next may be
misinterpreted in relation to the standard calculation speed of the computer.
However, since the standard speed is always computing the average of codes of preceding
8 characters, mixture of one or two characters is practically negligible for the interpretation.
The character space, on the other hand, is based on three dots, generally. In this machine,
when there is no input (of time code corresponding) to two dots, it is regarded the coding
for one character has been finished, and a corresponding character is displayed. Example:
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The word space standard is 7 dots. In this equipment, when there is no input of time
Transceiver mode switch
RTTY
AM, FM
USB
LSB
Reception of amateur station (HF band)
Reception of amateur station (over VHF band)
Reception of commercial station
NOR
NOR
REV
NOR
NOR
NOR
REV
NOR
NOR
NOR
REV
REV
code corresponding to 2 dots, it is regarded as a word space, and one-character portion is
made blank.
* In this equipment, when an un-interpretable code is input, an underline is displayed.
* When a continuous signal longer than 8 bits is fed in this equipment, the signal is
divided into every 8 bits, and corresponding characters are displayed.
* The correspondence of display characters to the telegraph codes is shown in the at-
tached chart.
Cautions for use of space switch
When the SPACE switch is set to NARROW side, the basis for judging the character
space and word space is shortened by 25 % so that a code shorter in space time can be interpreted. However, it may invite confusion in the case of deformed or other inferior codes.
Interpretation speed
The initial set speed is about 90 characters/minute. Thereafter, the interpretation follows up automatically according to the computation by the computer. As far as the speed change is less than
double (ex. from 45 to 90 characters per minute), the characters can be interpreted without error;
when changing suddenly more than double (ex. from 45, jumping to 100), the first two to four
characters may be misinterpreted.
However, when the speed change is gradually, the characters may be interpreted correctly from 15
to 250 characters per minute.
When the SPACE switch is placed at NARROW, the interpretation cannot follow up when
the speed decreases suddenly to less than 1/8. In such a case, once set to NORMAL, and
follow up correctly, then set back to NARROW.
(This is necessary only when the speed slows down; the interpretation follows when the
speed increases even in NARROW position.)
2.2 Reception of Baudot
Set the switches as follows:
SEND-AUTO-RECEIVE: AUTO
CW-RTTY: RTTY
ASCII-BAUDOT: BAUDOT
Set to the RTTY mode if the transceiver has the RTTY mode.
In the case of a transceiver without RTTY position, better results may be obtained by using
the low tone rather than the high tone. In such an event, use the low tone in spite of the
description below.
Set the NOR-REV switch by referring to the table below.
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Set the reception baud rate. Most amateur stations are using 45.45 bauds – hence se-
lect 45.5; while commercial stations mostly use 50 bauds.
Determine the shift width. In amateur stations, usually 170 Hz shift is used.
Set the mark frequency. In the HF band, the mark frequency is usually 2125 Hz, so set
the TONE HIGH-LOW selector to HIGH side.
Turn the VFO dial of the transceiver so that the MARK and SPACE LEDs flicker along with
the signals.
The SPACE filter frequency can be adjusted by the SHIFT sliding knob.
Use the FIG-ON, LTR-ON, LOCK UOS \ ON switches as necessary.
2.3 Reception of ASCII
The ASCII is usually used under the KCS standard (mark frequency 2400 Hz, space frequency 1200 Hz), or BELL 103 MODEM (mark 1270 Hz, space 1070 Hz) Since this equipment is not provided with demodulator, it should be manufactured by the user. When transmitting or receiving by means of a transceiver, the recommended conditions are HIGH tone,
170 Hz shift, and 110 bauds.
In the case of ASCII mode, the LTR-ON, and FIG-ON switches do not operate.
When the LOCK UOS switch is turned on, a lower case will be changed to a capital if a
code for lower case alphabet is received.
When this switch is at OFF position, a lower case remains so in display.
3. METHOD OF TRANSMISSION
Transmission is disabled if the SEND-AUTO-RECEIVE switch is placed at the RECEIVE position.
When this switch is at the neutral position, the transmission and reception are changed over by
the command from the keyboard.
When this switch is at the SEND position, the SW OUT REMOTE switch turns on, and in the
case of RTTY, the output of mark frequency is also delivered from the AFSK OUT terminal.
At this time, when a character has been written in the transmission buffer, its data is sent out.
In the case of CW, on the other hand, the SW OUT CW and SW OUT FSK switch turns on, together with the monitor sound of the AFSK, lighting up the CW LED at the same time. In the
event of RTTY, codes are delivered to the SW OUT FSK and AFSK OUT, together with the monitor sound of the AFSK.
The AFSK output of this equipment delivers a mark at a low frequency and a space at a frequency higher than the mark frequency by the portion of the shift width.
The transistor switch of the SW OUT FSK of this equipment turns ON at mark, and OFF at
space.
The output of SW OUT FSK may be inverted by changing the connections of the JP-1 of the
main printed substrate of this equipment.
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In this case, short the bridge land JP-1 with solder, an OFF output may be obtained at mark,
Transceiver mode switch
AMFMUSB
LSB
HF band
Over HF band
and an ON output at space.
The RTTY in the HF band in an amateur station is usually communicated by shifting the space
frequency lower than the mark frequency (which is called lower shift).
By contrast, in commercial stations and amateur stations over VHF band, the space frequency
is shifted higher than the mark frequency (upper shift).
Anyway, set properly by referring to the descriptions of the RTTY transmission and reception of
the transceiver.
When using AFSK in an amateur station, set the transceiver mode by referring to the table below.
NOTE: If a column without circle mark is used, a code of reverse shift with respect to other
station is sent out.
When transmitting Baudot, the LTR and FIG codes are added automatically, and sent out.
It must be noted that the UOS function appears to be dead because LTR or FIG code is automatically inserted also after sending out a space code.
When transmitting Baudot if a space code is inserted when 58 or more characters are sent out,
after sending out CR code, the CR, CR, LF, LTRS codes are automatically inserted into the codes being sent out.
When the codes being sent out each 71 characters, the CR, CR, LF, LTRS codes are automatically inserted after sending out the codes for the 71st character.
When the LOCK UOS switch is turned an when transmitting ASCII codes, lower cases of alphabet are all changed to capitals to be transmitted (capital lock function). When communicating
with a receiver without lower case function by using ASCII codes, set the LOCK switch in UOS
ON position.
4. KEYBOARD MANIPULATION
This set is furnished with a full keyboard of ASCII type, and communications are effected
through this keyboard.
The ASCII full keyboard has the following special keys that are not found in an ordinary typewriter. They are intended to directly deliver the function codes for computer controlling.
ESC RETURN LF RUBOUT TAB F1 F2
There are 33 function codes in all. A function code without direct designation key is delivered
by pressing the keys according to the attached table (Designation of ASCII Function Codes)
while pushing the CTRL key.
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When a function code is designated right after pressing the ESC key. This equipment writes a
corresponding function code in the transmission buffer.
If a function code is delivered without pressing the ESC key. This equipment interprets that
the function code was given as the control command for this equipment, not as transmission
data, and starts the following operation.
The actions are summarized in a simplified list, which is attached to the end of this book.
CTRL | A If written as shown on the left, press the A key while pushing the CTRL
key.
SHIFT | TAB If written as shown on the left, press the TAB key while pushing the
SHIFT key.
RETURN Sends out CR, CR, LF, LTRS when sending Baudot code.
On the receiving screen, it is interpreted as a new line code and the cursor moves to the
head of next line at Baudot code. (At ASCII code, sends out carriage return code, the cursor does not move.)
LF Sends out line feed code. On the receiving screen, it is interpreted as a new line
code, and the cursor moves to the head of next line.
BS Erases one character of the latest data written in the transmission buffer or memo-
ry channel.
If the character is not written in the transmission buffer, a correction code is sent out,
namely HH in CW, / in Baudot, and BS in ASCII.
RUBOUT Returns from memory channel write mode to ordinary mode.
F1 Delivers LTRS shift code when in Baudot code.
F2 Delivers FIGS shift code when in Baudot code. (Since LTRS and FIGS shift code are
automatically inserted and sent out, this manipulation is not necessary in usual communications.)
TAB When this key is pressed, the display screen is changed over just as when the
page button an the front panel is pressed.
SHIFT | TAB This key input produces the same screen as by the CRTL | Q 5 opera-
tion.
CTRL | 57 All reception data is cleared away.
SHIFT | 57 A special character "" having a slit in the middle of a circle is shown in
the transmission buffer or memory channel.
When this character is read when sending, the commands of CTRL | A or CTRL | X
are canceled, and the machine returns to reception state. Therefore it can be used as a
direct command for returning to reception state when there is no data in the transmission buffer.
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CTRL | G Sends out BEL. When the receiver set has a bell ringing function, it can ring
an operator call bell. (No effect in CW.)
CTRL | O Delivers LTRS shift code when in Baudot code.
CTRL | N Delivers FIGS shift code when in Baudot code. (Since LTRS and FIGS shift
codes are automatically inserted and sent out, this manipulation is not necessary in
usual communications.)
CTRL | @ Sends out NUL in ASCII, or BLANK code in Baudot.
« The following commands will invert ON and OFF positions alternately whenever the key is
manipulated. When switched to ON, a corresponding character is displayed in the status
display area.
Operation of automatic transmission/reception selector function
CTRL | A When the SEND-RECEIVE switch is placed in the neutral (AUTO) position, if
the transmission buffer is filled with characters when the following manipulation is
made, the mode is automatically changed to transmission and codes are sent out.
When data are used up in the transmission buffer, the transceiver automatically returns
to the reception mode.
Selection of transmission and reception from keyboard
CTRL | X While the SEND-RECEIVE switch is placed in the neutral (AUTO) position, the
transmission and reception are changed over whenever the following manipulation is
made when changed to transmission, if the transmission buffer is filled with characters,
codes are also sent out. When data are used up in the transmission buffer, code sending is stopped, but the transceiver remains in the transmission mode.
Command to hold the transceiver in transmission mode and stop sending out codes
from the transmission buffer.
CTRL | ^ This command stops sending out codes temporarily while transmitting data
from the transmission buffer. The transceiver holds the status of transmission, and
sends out LTRS shift code in Baudot, or NUL code in ASCII as a synchronizing signal.
Command to designate block transmission of word unit
CTRL | Y It enables operation of Word Mode in CW. In this mode, no code is sent out
at CW mode unless space is inserted in the transmission buffer.
CTRL | X , CTRL | Y , CTRL | ^
SYNC IDLE works with Word Mode at RTTY mode.
« Automatic reception reset feature disabled and works if both CTRL | A , CTRL | Y at
RTTY mode.
When CTRL | ^ is further added, SYNC IDLE is automatically inserted at RTTY mode.
If CTRL | X is used instead of CTRL | A , the machine operates in word mode at RTTY
mode.
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Command to delay the RTTY transmission speed without changing baud rate
CTRL | U Transmission speed is slowed down to 25-baud equivalent without changing
the baud rate of Baudot or ASCII transmission.
Command to enable reception of ASCII function code and output to printer port
CTRL | C When this command is OFF, only LF is delivered to the printer.
While receiving in ASCII mode, all other function codes than CR, LF, BS are ignored, but
this command enables reception and display of function codes and output of data to
the printer.
« With the CTRL | C active, the 00 (NUL) and 7F (DEL) codes of ASCII codes are not
shown on the screen. Also no output is delivered from the printer data output port.
Command to switch on and off the data output to printer port
CTRL | P This is the only command that can be preset to ON before turning on the
power of this equipment. Right after the power switch is turned on, a "P" mark is displayed in the status display area to indicate that this command is ON.
By using this command, the printing of the printer can be controlled from the keyboard.
Weighting on codes in CW transmission
CTRL | D This command changes the ratio of dot to dash of the CW transmission co-
des from the standard 1:3 to 1:4.
CW ID command (the method of changing from RTTY mode to CW ID transmission
mode).
CTRL | I Unlike the other two CW ID transmission methods, this mode is intended to
change to the CW ID mode immediately.
This command is also used when returning from the CW ID mode status to the RTTY
mode.
Method of transmission using the data recorded in a tape recorder (Echo-Back method)
CTRL | E When the RX-TAPE selector is at TAPE position, the received data are written
into the transmission buffer. At this time, it is possible to send out the received data
while they are being received. It is also possible to transmit data while reading them
out from a tape recorder. When the RX-TAPE selector is at RX position, the transmitted
data are written again into the transmission buffer.
« Break command
CTRL | B This is effective only when the SEND-AUTORECEIVE switch is at SEND. While
codes are being sent out, normal operation is prohibited. When data are contained in
the transmission buffer, stop the code sending with CTRL | ^ and then effect the command. When this command is put into effect, it shifts to space in RTTY and sets in Key
pressed-down state in CW.
This command is reset by any key.
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Page 15
This command is used when testing the set (such as measurement of space frequency),
or when adjusting the final stage part of the transmitter in CW transmission.
The following commands are effected by pressing two or more keys in succession.
At ON, a display is made in a two-character wide area in the same position left side of the page
number indicated at the tail of the status display area.
The first character refers to the command name, and the second character has the following
meaning.
"" Shows the state of waiting for next key input.
« Except for ESC command, commands showing "" can be canceled by RUBOUT
key.
If other key than the one demanded by is pressed, that command is canceled, and
a corresponding character is written in the transmission buffer at the same time.
However, while the CTRL | W is showing "", only the cancellation of the command and return to the "Base display page" are effective.
Or if the operation corresponds to a new command, this command is entered.
Numeral Shows the memory channel number in writing process.
Show that the command is active.
Indicates the memory load is started.
While or ¨is being displayed, data input from keyboard is not accepted. At this
time, the command can be canceled RUBOUT key.
« Underline type cursor
One of the transmission buffer, memory channel and status display is indicated by a
blinking underline type cursor to point out the position in which data is written by next
key input or to show the Operation is started by keyboard command. Hereinafter, this
underline type cursor is referred to only as "the cursor".
Memory channel write command
CTRL | W At this time, "W " is displayed. The screen automatically changes to page
3.
0 – 9 in succession.
When key "2" is pressed at this time, the display will be "W2", which means it is
ready to write in channel 2. When a wrong letter is written, one character can be
erased by pressing BS key. When writing of sentences necessary for memory channel is over, press the RUBOUT key, then the mode returns from memory channel
write mode to the ordinary mode, and the display screen returns to the "Base display page" at the same time.
« Memory channel numbers are displayed in inverted characters on page 3. When
a number not shown in memory channel area is specified, the input is ignored
and the machine waits for an input of correct number.
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Page 16
« Immediately after the power is turned on, six memory channel numbers from 0
to 5 are displayed on page 3 in this machine. This composition of memory channels may be freely changed as described below.
Changing method of memory channel composition
While data is being written in memory channel by executing a write command of memory channel,
the composition of memory channels can be changed by the following key inputs. (The effect of
key input appears in the position indicated by the cursor in the memory channel.)
BS The data in the cursor position is erased, and the vacancy is indicated by a small
"+" mark. (When a set of data is divided into two or more portions by this character
within a same channel number, the data after the "+" mark is invalid at the time of
transmission.)
CTRL | 1...9 An inverted numeral representing the memory channel is written in the
cursor position. (If two or more memory channels having an identical number are
made, only the first memory channel number is valid.)
By this command, the memory channel area can be divided into up to ten channels.
The writing position or order of memory channel numbers is free, but the position of
memory channel 0 cannot be changed.
CTRL | < Cursor moves to the left.
CTRL | > Cursor moves to the right.
CTRL SHIFT | < Cursor moves one line up.
CTRL SHIFT | > Cursor moves one line down.
CTRL | + Additional space for one character portion is made in cursor position.
CTRL | - Data in cursor position is deleted.
« In order to prevent written data from being rewritten by mistake, the position in which
a memory channel is written is protected, and usual key data cannot be entered or, in
the case of BS key input, the cursor cannot be moved to that position. However, by using a cursor move command, it is possible to insert, delete or correct data by moving
the cursor on these characters or beyond them, or to write data in succession to other
memory channel area.
« A total data of 383 characters can be written in the memory channel when only channel
number 0 is used and all other channel numbers are erased.
« The memory channel possesses a buffer area corresponding to 4 lines (128 characters),
which is, however, not shown on the screen. Therefore the data forced out of the
screen by CTRL | + command may be recalled by the CTRL | - command if the data
is within 128 characters in length. Or if the expelled portion of the data is continuous
with the memory channel data in the final part shown on the screen, it can be effectively read as the data of that memory channel.
- 16 -
Page 17
« This fact means that it is possible to store further data of 128-character portion at the
tail of memory channel screen when the CTRL | + command is used while paying attention to the number of characters.
« The memory save and memory load commands have ability of saving and loading an-
other 128-character portion in addition to the 384-character portion shown on the
screen, and saving and loading may take about 55 seconds. In both save and load command, the cursor moves to indicate the position of the data to be saved or loaded.
« CW ID transmission method using memory channel 0 (AUTO CW ID)
Using sentences written in the following format in the memory channel 0 , CW ID of
the automatic changeover system can be sent out.
Press SHIFT | * keys while writing into the memory channel 0 .
(Example or writing)
0 CRLFCW ID SHIFT | * DE
YOUR CALL SIGN
SHIFT | * CRL
F
└ CW OUTPUT ┘
By reading out the memory channel 0 , the sentences written between the SHIFT | * are
transmitted in CW.
(When writing of memory channel is started by CTRL | W 0 , the CW ID format can be
written also into other memory channel by using cursor move command or CTRL | 1...9
command.)
Memory channel readout command
CTRL | R 0...9
When a memory channel number is registered in the transmission buffer and is read
out from the transmission buffer, the data in the corresponding memory channel are
once transferred to the memory channel transmission buffer and then transmitted.
At this time, the memory channel number being transmitted is displayed at the head
position in the status display area.
CTRL | 0...9 This is the same command as CTRL | R 0...9
Method to cancel the transmission of data in memory channel
CTRL | SHIFT | 14 When a wrong number is entered as memory channel and it actual-
ly begins to be sent out, the transmission of that memory channel can be canceled.
Display screen changeover command by keyboard operation
In succession to CTRL | Q , when 0 , 1 , 2 , or 3 is depressed, the screen is
changed to a corresponding page.
4 is depressed, the pages are changed over continuously as in the case of ope-
ration of the page button on the front panel.
5 is depressed, the screen returns to the "Base display page".
- 17 -
Page 18
The screen displayed by this command is identical with the one returning at
the time of memory channel write command. When the power switch of the
unit is turned on, page No. 1 is set, which is changed to other screen by the
CTRL | Q 6 operation.
6 is depressed, the Q command is cut off, and the screen being displayed as
registered as a new "Base display page". This command is intended to
change the screen displayed by CTRL | Q 5 to other screen. To cut off only the Q command, press the RUBOUT key.
7 is depressed, moves up the display screen by one line.
8 is depressed, moves down the display screen by one line.
« When the display screen is moved up or down by 7 or 8 key opera-
tion, a shaded square appears in the page No. indicating position. By using together with CTLR | Q 6 split screen display may be indicated.
Example of operation:
CTRL | Q 1 7 7 7 7 7 7 6
As a result of the operation above, a split screen display appears in 9 lines in
the reception area and 9 lines in the transmission buffer, and this screen is
displayed at the CTRL | Q 5 or end of memory channel write command.
Method of erasing the final one line of the transmission buffer
CTRL | Z BS The final one line of the transmission buffer is erased.
When the entire transmission buffer is erased, the Z command is cut off at
the same time.
Method of erasing all transmission buffer
CTRL | Z SHIFT \ The transmission buffer is entirely erased, and the Z command is
cut off.
Method of registering the CW ID changeover in the transmission buffer
CTRL | Z SHIFT * When read out from the transmission buffer, the mode is changed
from RTTY to CW ID, or from CW ID to RTTY mode.
Method of recording the data written in memory channel into tape recorder (memory
SAVE)
Set- to 110 baud.
Set to the usual shift width and tone.
Connect the AFSK OUT TAPE and record input terminal of tape recorder.
Start the tape recorder in record mode.
The push CTRL | S and RETURN key, then the memory save operation is started.
- 18 -
Page 19
Method of loading the data for memory channel recorded in the tape recorder into
memory channel (memory LOAD)
Set to 110 baud.
Set to the same shift width and tone as in the case of memory save operation.
Set the CW-RTTY selector to RTTY side.
Set the NOR-REV selector to NOR side.
Set the RX-TAPE selector to TAPE side.
Connect the output terminal of tape recorder and AF TAPE.
After pressing CTRL | L and RETURN keys, start the tape recorder in playback mode.
Automatic transmission of Test Message
CTRL | Z 0...9
1 Sends RYRY in 70 characters.
2 Sends QBF once.
If call sign for ID is written in a position within two lines above the memory
channel area, this call sign is automatically added to the tail of QBF. This ID
is, however, sent in RTTY code.
3 Sends all characters usable in Baudot code once.
4 Sends all characters usable in ASCII code once.
5 Sends RYRY continuously. Line Feed is given every 70 characters.
6 Sends pattern of 2 continuously.
7 Sends pattern of 3 continuously.
8 Sends pattern of 4 continuously.
9 Stops transmission of test message temporarily when there is no data in the
transmission buffer. Continues to send out data of transmission buffer when
there is data in the transmission buffer.
0 Stops transmission of test message temporarily when there is no data in the
transmission buffer. Starts to send out data of transmission buffer, when
there is data in the transmission buffer, after once sending out all test
messages being transmitted.
« The commands 1 through 4 return to the mode of sending the transmission
buffer data automatically after sending out a full cycle of test messages.
« The characters that can be sent in test message are as shown below.
1 , 5 (RY)
RYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYKYRYR
- 19 -
Page 20
2 , 6 (QBF)
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG'S BACK
0123456789
3 , 7 (Baudot all characters)
ABCDEFGHIJKLMNOPQRSTUVWXYZ 1234567890 !"#$&(),-./:;?
4 , 8 (ASCII all characters ... 20H to 7EH)
!"#$%&'()*+,-./0123456789:;<=>?
@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^'abcdefghijklmnopqrstuvwxyz{|}~
Insertion of the SYNC IDLE at RTTY mode
1. SYNC IDLE only works if both word mode CTRL | Y and SYNC character insertion CTRL | ^
are activated.
2. With the SEND-AUTO-RECEIVE switch in AUTO position and CTRL | A (or CTRL | X ) off, the
user starts pretyping (while receiving, usually).
3. When the user decides to transmit, he uses CTRL | A to start. All pretyped text will now be
transmitted with fill characters.
4. When the transmitted output has "caught-up" with the user's typing, fill characters are automatically inserted until the next complete word has been typed (indicated by the space bar
code at present).
5. As each new word is typed and completed, the fill characters are stopped and the word is
transmitted.
6. When a transmission has been completed, the transmission is stopped with a second
CTRL | A (or CTRL | X ) command, returning this equipment to receive.
« Automatic reception reset feature disabled and works if both CTRL | A , CTRL | Y at
RTTY mode.
In case of CTRL | A , CTRL | Y , CTRL | ^ , SYNC IDLE is automatically inserted.
In case of CTRL | X , CTRL | Y , CTRL | ^ , SYNC IDLE is automatically inserted, the
machine operates in Word Mode.
- 20 -
Page 21
5. RATING
1) Transmission and reception codes
CW
Morse code Alphabet, numerals, symbols, special signs.
RTTY
Baudot code 5-unit Baudot codes (American Informations)
1 start bit, 5 code bits, 1.5 stop bits: total 7.5 bits.
ASCII code 7 units (ISO/CCITT No. 5)
(There is no parity check in reception.)
2) Transmission and reception speeds
CW Reception: 15 to 250 characters/minute (automatic follow up).
CW Transmission: 25 to 200 characters/minute (continuously variable).
Weight: 1:3 or 1:4.
RTTY 45.45, 50, 56.88, 74.2, 110, 300 bauds.
(300-baud speed is possible when external MODEM is used.)
3) Input
AF input CW, RTTY, input impedance 8 Ohms, 30 mV to 2 V rms.
Key input CW, input withstand voltage max. ±15 V.
TTL level input RTTY (mark = H, space = L).
4) AF frequency
CW: 800 Hz (AF active filter + PLL filter used)
RTTY Mark = 2125 Hz
HIGH TONES: Space = 2295 Hz (170 Shift)
= 2550 Hz (425 Shift)
= 2975 Hz (850 Shift)
CW ID = Space tone (all shifts)
RTTY Mark = 1275 Hz (170 Shift)
LOW TONES: Space = 1445 Hz (170 Shift)
= 1700 Hz (425 Shift)
= 2125 Hz (850 Shift)
CW ID = Space tone (all shifts) (Mark, space filter type demodulator used).
- 21 -
Page 22
5) Output
Keying output CW Transistor switch for both positive and negative: +100 V, 100 mA,
-100 V, 10 mA, (V
120 V, IC 1.5 A, PC 20 W)
CEO
residual voltage less than 0.8 V.
FSK Transistor switch +100 V, 20 mA (V
(mark=ON, space=OFF, invertible by changing internal connections).
AFSK output CW, RTTY, impedance 500 Ohms, max. 100 mV rms.
TTL level output RTTY (mark=H, space=L).
CW (mark=L)
6) AFSK output frequency
RTTY & CW ID OUT Mark 1275 Hz (low tone), 2125 Hz (high tone).
Upper shift
Shift width 170 Hz, 425 Hz, 850 Hz.
CW 800 Hz mark tone
7) Display output 5-inch green light emitting CRT.
Built-in CRT Composite video signal (Video positive modulation, synchronous
External CRT negative modulation, 1.0 ±0.2 Vp-p, 75 Ohms).
300 V, IC 0.1 A PC 0.75W)
CEO
8) Printer interface
Parallel, Centronics - compatible printer output; Received and transmitted text may be
printed on the ASCII printer, regardless of code.
9) Remote control Key
Transistor switching, +50 V, 140 mA. (V
10) Number of display characters
640 characters (32 characters × 20 lines) × 4 pages, Display format is shown in attached
drawing.
PAGE MEMORY: 56 lines of 32 characters per line (4 pages); 25 MEMORY: lines of
receive text, 15 lines of pretype transmit.
11) Output for oscilloscope
RTTY Separate mark and space connections for crossed ellipse indication on
X-Y scope display.
Voltage = 1.0 V p-p typical, 100 kOhms loads, or 0.5 V p-p typical, 10
kOhms loads.
60V, IC 1A, PC 0.75 W)
CEO
- 22 -
Page 23
12) AF output
PHONE terminal CW: Delivers oscillation sound of monitor OSC.
EXT. SP terminal Delivers signal fed in AF input terminal.
13) Keyboard
ASCII full keyboard.
14) Power source
12 to 14.5 V DC (13.8 V DC nominal), 1.65 Amps, 23 Watts.
15) Overall dimensions
W 336 mm × D 317 mm × H 140 (not including plug protrusions).
RTTY and CWID: Delivers AFSK oscillation sound.
100 mW, 8 Ohms.
16) Weight
16.5 lbs net, 20 lbs shipping (including keyboard)
7.5 kg net, 9.1 kg shipping(including keyboard)
17) Accessories
R type phone pin plug 4
Mini earphone plug 1 (for telegraph key)
Fuse 2 A 1 (spare)
DC power cord 1
ASCII full key board 1
- 23 -
Page 24
6. REPLACEABLE KEYBOARDS
This machine is furnished with the ASCII type full keyboard, which may be, however, replaced with
other one by the user. Or, other computer may be connected instead of the keyboard.
When replacing keyboards, note the following requirement.
1) It must be a full keyboard of ASCII code output. If the keyboard does not have 7 or 8-bit positive logic Parallel data including ASCII function codes and 1-bit negative logic strobe, it should
not be used for the this equipment.
2) The keyboard should work on +5 Volt power source, and the current consumption of the keyboard should be less than 150 mA.
3) The signal names of the keyboard connector of the this equipment are as follows:
1. GND 7. D6 13. to 24. Not used
2. D1 8. D7
3. D2 9. D8
4. D3 10. STROBE
5. D4 11. ACK
6. D5 12. +5V, output possible up to 150 mA
(An underlined signal name means negative logic.)
ACK is not used at the present. Do not use it when replacing keyboard. When sending data
into the this equipment from other computer, ACK is used. At this time, after checking the
response of ACK, enter the next data and STROBE.
« The data delivered from the keyboard attached to this machine are as follows.
When a 7-bit ASCII code is entered, some of the commands are not operated.
When a printer output port of computer or the like and a keyboard data input port of
this machine are connected, deliver the data according to this list.
The name of keyboard plug is P-1624-BAC.
List of keyboard output codes:
(Keyboard encode ROM code name K1)
- 24 -
Page 25
NORMAL
SHIFT
CTRL
CTRLSHIFT
NORMAL
SHIFT
CTRL
CTRLSHIFT
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
1
2
3
4
5
6
7
8
9
0
^
\
(BS)
(ESC)
q
w
e
r
t
y
u
i
o
p
@
[
(CR)
a
s
!
"
#
$
%
&
'
(
)
NUL
=
~
|
(ETB)
(SUB)
Q
W
E
R
T
Y
U
I
O
P
`
{
CR
A
S
(-)
RS
FS
BS
(DLE)
DCI
ETB
ENQ
DC2
DC4
EM
NAK
HT
SI
DLE
NUL
ESC
CR
SOH
DC3
(=)
(^)
(\)
(CAN)
CAN
(Q)
(W)
(E)
(R)
(T)
(Y)
(U)
(I)
(O)
(P)
(@)
([)
CR
(A)
(S)
31
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
d
f
g
h
j
k
l
;
:
]
LF
z
x
c
v
b
n
m
,
.
/
BEL
(HT)
SP
(SI)
(SO)
(DEL)
D
F
G
H
J
K
L
+
*
}
LF
Z
X
C
V
B
N
M
<
>
?
_
(VT)
(SP)
SI
SO
ENQ
EOT
ACK
BEL
BS
LF
VT
FF
(;)
(:)
GS
LF
SUB
CAN
ETX
SYN
STX
SO
CR
(,)
(.)
(/)
US
(FF)
(FS)
SI
SO
(ACK)
(D)
(F)
(G)
(H)
(J)
(K)
(L)
(+)
(*)
(])
LF
(Z)
(X)
(C)
(V)
(B)
(N)
(M)
(<)
(>)
(?)
(DEL)
(SHO)
(GS)
SI
SO
DEL
- 25 -
Page 26
7. CONNECTABLE PRINTER
A printer of Centronics Compatible Parallel Interface Can be used. Use the printer of this standard
specification.
To connect the printer with this equipment, purchase the following parts.
1) HIROSE 12-pin plug, P-1612-BAC, 1 piece
2) Connection cord (12-wire), less than 1.5 meter
3) Printer side plug (as specified in the Printer Instruction Manual), 1 piece
The LING register for printer output of this equipment is for 80-character portion. In the case of
110 bauds or higher speed, a printer of slow action type may skip prints.
The signal names of the printer connector are as follows:
1 GND 7 STROBE
2 BUSY (RDY) 8 D1 (LSB)
3 ACK 9 D2
4 D8 (MSB) 10 D3
5 D7 11 D4
6 D6 12 D5
(An underlined on signal name means negative logic.)
Select a printer which incorporates buffer register for one-line portion, and automatically feeds line
when this buffer register becomes full, and also feeds line when control code (1)A (LF: line feed
codes) is entered.
The output of STROBE is a negative pulse of about 10 µsec. The input of ACK is not read. When
the input of BUSY (RDY) is L level only, data is delivered. The data output is latched just before
the next STROBE output. The D8 output is always delivered at L level.
The output code is 7-bit parallel ASCII code.
- 26 -
Page 27
BRIDGE LAND FUNCTION (User Adjustments)
Modem substrate
OPEN
SHORT
JP-1
UPPER SHIFT AFSK OUTPUT
(Set Mark Tone)
OWER SHIFT AFSK OUTPUT
(Set Space Tone)
Main substrate
OPEN
SHORT
JP-1
SW OUT FSK MARK = "ON"
SW OUT FSK SPACE = "ON"
JP-2
SW OUT CW
+keying residual voltage
0.8 V (can be used ±keying)
SW OUT CW
+keying residual voltage
0.2V (only used +keying)
JP-3
*1.
*2.
NOTES: *1. JP1 is used to align the transmit AFSK tones; use Clip to chassis ground from pin
at JP1.
*2. Use "solder-bridge" to "short" JP-1 & JP-2.
« Since the other bridge lands are set at time of manufacture, the user should not change the
setting.
- 27 -
Page 28
8. INPUT AND OUTPUT CONNECTION DIAGRAM
- 28 -
Page 29
9. PARTS LAYOUT ON PRINTED CIRCUIT BOARD
Modem substrate (case lower side)
Main substrate (case upper side)
- 29 -
Page 30
ADJUSTMENTS of the circuit board
Tone
Shift switch
Test point
JP1 connection
VR to be used
HIGH
Arbitrary
TP-3
Open
VR7 HM
170
TP-4
Jumper or CTRL B
VR1 H1
425
"
"
VR2 H2
850
"
"
VR3 H3
LOW
Arbitrary
TP-3
Open
VR8 LM
170
TP-4
Jumper or CTRL B
VR4 L1
425
""VR6 L2
850
"
"
VR5 L3
Though necessary parts have been adjusted at the time of shipping, deviations may be caused
due to aging or other conditions in the course of months of use. In such case, readjust in the following procedure.
Adjustment of semivariable resistors an COMPUTER substrate (TOP-BOARD)
CONTROL/TP ACTION
VR-1 Adjusts frequency of CW sidetone oscillator; set to 800 Hz at TP-1 AFTER ADJUST-
ING VR-2.
VR-2 Adjust center frequency of CW PLL filter; ADJUST BEFORE VR-1. Set SPACE-NAR-
ROW switch is NARROW, Shift the adjustment of VR-1 out of 800 Hz beforehand,
With no signal input, set VR-2 for 800 Hz at TP-2.
VR-3 Adjust minimum CW transmit speed. Set SPEED slide control to minimum (0) and
adjust VR-3 for CW transmit speed desired. (Measured at TP-3.)
VR-4 Adjust maximum CW transmit speed. Set SPEED slide control to maximum (10) and
adjust VR-4 for CW transmit speed desired. (Measured at TP-3.)
VR-5 Adjusts center frequency of CW active filter. Feed 10-20 mV, 800 Hz signal into AF
input, adjust VR-5 for maximum signal at TP-5 (use oscilloscope).
VR-6 Adjust contrast of the internal CRT display.
TP-6 Measure CW transmit speed; CW WPM = 2.667 × freq.
Adjustment of semivariable resistors on MODEM substrate
Adjust the mark and space filter frequency by using the output of AFSK.
Set the SEND-RECEIVE switch to SEND and RX-TAPE switch to TAPE position.
Connect the AFSK OUT TAPE and AF IN-TAPE.
Set the SHIFT sliding VR to 0 position.
Turn the AFSK GAIN control fully clockwise.
Under the conditions above, observe TP-3 (mark filter output check point) of TP-4 (space filter output check point) on oscilloscope, and adjust to the maximum amplitude.
- 30 -
Page 31
OTHER USER ADJUSTMENTS:
The only remaining user-adjustable controls are those in the CRT monitor sub-assembly. The functions of these controls are clearly marked on the circuit board and you may adjust them if required. The available controls are:
MARKING LOCATION FUNCTION
V-LIN Right side Adjust vertical linearity
V-HEIGHT Right side Adjust vertical height
V-HOLD Right side Adjust vertical oscillator frequency
VIDEO CENTER Right side Adjust horizontal centering
SUB-BRIGHT Right side Adjust brightness of CRT
FOCUS Right side Adjust focus of display
These are the ONLY user-adjustable controls in the CWR685E (CWR6850). Please do attempt readjustment of any other controls or use of any jumpers not mentioned in the above discussion. If
your CWR685E (CWR6850) still exhibits problems or cannot be adjusted as explained, please contact your dealer or the factory for more information.
- 31 -
Page 32
10. DISPLAYS
Line Display
No. content
.......
1 ................. blank ...........█◄─────┼───Page 0 shown
2 .................................... │
3 .................................... │
4 .................................... │
5 .................................... │
6 .................................... │
7 .................................... │
8 .................................... │
9 .................................... │
10 .................................... Page 0
11 .................................... │
12 ............Reception data.......... ....│...┐.....
13 .............display areas.......... │ │
14 ......26 lines, 832 characters...... │ │
15 .................................... │ │
16 .................................... │ │
17 .................................... │ │
18 .................................... │ │
19 .................................... │ │
20 .................................... ....┘...│
21 .................................... │
22 .................................... Page 1
23 .................................... │
24 .................................... .......│.....┐.....┐.....
25 █◄─Reception cursor start position.. │ │ │
26 .................................... │ │ │
27 .................................... │ │ Page 3
28 ...Memory ch transmission buffer.... │ │ (lower
29 ............Status Display.........█◄─Page # │ │ 8 lines)
30 .................................... shown │ │ │
31 .................................... 1, 2, 3 │ │ │
32 .................................... ........┘.....│.....┘
33 .................................... │
34 .................................... Page 2
35 .................................... │
36 ........Transmission buffer......... │
37 ............line 30-44.............. │
38 ......15 lines, 480 characters...... │
39 .................................... │
40 .................................... │
41 .................................... │
42 .................................... │
43 .................................... │
44 .................................... ..............┘.....┐.....
45 ..............Memory 0.............. │
46 .............lines 45-46............ │
47 ..............Memory 1.............. │
48 .............lines 47-48............ Page 3
49 ..............Memory 2.............. (upper
50 .............lines 49-50............ 12 lines)
51 ..............Memory 3.............. │
52 ............ lines 51-52............ │
53 ..............Memory 4.............. │
54 .............lines 53-54............ │
55 ..............Memory 5.............. │
56 .............lines 55-56............ ....................┘.....
- 32 -
Page 33
PAGE 0 DISPLAY FORMAT:
LINE DISPLAY
NO CONTENT
1 ......Blank.................. 0 (Page No.)
2 ................................
3 ................................
4 ................................
5 ....Top Portion of Receive......
6 ..........Display...............
7 ...(19 lines, 608 characters)...
8 ................................
9 ................................
10 ................................
11 ................................
12 ................................ .............
13 ................................ │
14 ................................ │
15 ................................ Repeated
16 ................................ on
17 ................................ Page 1
18 ................................ │
19 ................................ │
20 ................................ .............
PAGE 1 DISPLAY FORMAT:
LINE DISPLAY
NO CONTENT
.............
13 ................................ │
14 ................................ │
15 ................................ Repeated
16 ................................ from
17 ................................ Page 0
18 ................................ │
19 ................................ │
20 ...Bottom Portion of Receive.... .............
21 ...........Display..............
22 ...15 Lines, 480 Characters.....
23 ........(Lines 13-27)...........
24 ................................
25 ...............................
26 ................................
27 ................................
28 ...Tape Store Output Buffer.....
29 .....Status Indicators........ 1 (Page No.)
30 ....Top of Transmit Buffer......
31 ....3 Lines, 96 Characters......
32 ......(Lines 30-32).............
Note: ONLY Page 0 and Page 1 are available in "MODE A"
- 33 -
Page 34
PAGE 2 DISPLAY FORMAT:
LINE DISPLAY
NO CONTENT
25 ...............................
26 ....3 Lines, 96 Characters......
27 .......(Lines 25-27)............
28 ...Tape Store Output Buffer.....
29 .....Status Indicators....... 2 (Page No.)
30 ................................
31 ................................
32 ................................
33 ................................
34 ................................
35 ................................
36 ....All of Transmit Buffer......
37 ...15 Lines, 480 Characters.....
38 .......(Lines 30-44)............
39 ................................
40 ................................
41 ................................
42 ................................
43 ................................
44 ................................
PAGE 3 DISPLAY FORMAT:
LINE DISPLAY
NO CONTENT
45 .........HERE IS 0.............
46 .......(Lines 45, 46)...........
47 .........HERE IS 1.............
48 .......(Lines 47, 48)...........
49 .........HERE IS 2.............
50 .......(Lines 49, 50)...........
51 .........HERE IS 3.............
52 .......(Lines 51, 52)...........
53 .........HERE IS 4.............
54 .......(Lines 53, 54)...........
55 .........HERE IS 5.............
56 .......(Lines 55, 56)...........
25 ...Bottom of Receive Buffer....
26 .....3 Lines, 96 Characters.....
27 .......(Lines 25-27)............
28 ...Tape Store Output Buffer.....
29 .....Status Indicators....... 3 (Page No.)
30 .....Top of Transmit Buffer.....
31 .....3 Lines, 96 Characters.....
32 .......(Lines 30-32)............
Note: "MODE B" must be selected to view Pages 1 and 2.
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Page 35
11. DESIGNATION OF ASCII FUNCTION CODES
Data
(hexadecimal)
Name of
data
Method of operation
00
01
02
03
04
05
06
07
08
09
0A
0B
0C
0D
0E
0F
10
11
12
13
14
15
16
17
18
19
1A
1B
1C
1D
1E
1F
7F
NUL
SHO
STX
ETX
EOT
ENQ
ACK
BEL
BS
HT
LF
VT
FF
CR
SO
SI
DLE
DC1
DC2
DC3
DC4
NAK
SYN
ETB
CAN
EM
SUB
ESC
FS
GS
RS
US
DEL
Press CTRL | @
After once pressing ESC press CTRL | A
-"- CTRL | B
-"- CTRL | C
-"- CTRL | D
-"- CTRL | E
-"- CTRL | F
Press CTRL | G
Press BS
After once pressing ESC press CTRL | I
Press LF
After once pressing ESC press CTRL | K
-"- CTRL | L
Press RETURN
Press F2
Press F1
After once pressing ESC press CTRL | P
-"- CTRL | Q
-"- CTRL | R
-"- CTRL | S
-"- CTRL | T
-"- CTRL | U
-"- CTRL | V
-"- CTRL | W
-"- CTRL | X
-"- CTRL | Y
-"- CTRL | Z
Press ESC twice
After once pressing ESC press CTRL | \
-"- CTRL | ]
-"- CTRL | ^
-"- CTRL | RUBOUT
Press RUBOUT
« Effective only in ASCII mode.
« When using as printer setting command, press CTRL | C beforehand.
« If ESC key is pressed first by mistake, the next key to be pressed should be other than CTRL
or direct function key.
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Page 36
12. CORRESPONDENCE CHART OF DISPLAY CHARACTERS AND CODES (CW)
Display Code Display Code
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 ––··
1 .––––
2 ··–––
3 ···––
4 ····–
5 ·····
6 –····
7 ––···
8 –––··
9 ––––·
0 –––––
. ·–·–·– (period)
, ––··–– (comma)
: –––··· (colon)
- –····– (dash)
' ·––––·
/ –··–· (slash)
" ·–··–· (BT)
? ··––·· (query)
@ ·–·– (AA)
+ ·–·–· (AR)
^ ·–··· (AS)
] –···–·– (BK)
= –···– (BT)
% –·–··–· (CL)
[ –·–·– (KA)
LF ···–·– (VA, SK)
$ ···–··– (SX)
> ···–· (VE)
< ········ (HH)
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Page 37
13. KEYBOARD CONTROL COMMAND LIST
CONTROL STATUS
KEY INDICATOR FUNCTION
CTRL | A A On - off control of automatic transmit-receive Operation;
SEND-AUTO-RECEIVE switch must be in AUTO position.
CTRL | B B On/off control of "break" transmit (SWITCH is in the SEND position).
CTRL | C C On - off control of reception and transfer to the printer of ASCII con-
trol codes.
CTRL | D D Extends CW transmit dash length by 25 % reducing the effective CW
"weight".
CTRL | E E On - off control of echo-back from transmit to receive buffer areas.
CTRL | G Inserts signal bell code in transmit buffer; effective only in ASCII and
Baudot.
CTRL | I Changes transmit mode from RTTY to CW ID for all text to be trans-
mitted. Shows reverse video star in receive buffer.
CTRL | TAB Same function as above CTRL | I .
CTRL | RETURN L Load start command to load contents of all 10 HERE IS memories
from tape; control passes to tape and CWR685E (CWR6850) will not
respond to further keyboard commands until an ASCII STX character
is received from tape.
CTRL | P P On - off control of the printer.
CTRL | Q 0 Q Set display to page 0.
CTRL | Q 1 Q Set display to page 1.
CTRL | Q 2 Q Set display to page 2.
CTRL | Q 3 Q Set display to page 3.
CTRL | Q 4 Q Changes display screen in order of 0-1-2-3-0 or 0-1-0.
CTRL | Q 5 Q Returns display screen to "Base display page".
CTRL | Q 6 Q Registered as a new "Base display page", and reset CTRL | Q com-
mand.
CTRL | Q 7 Q Moves up the display screen by one line.
CTRL | Q 8 Q Moves down the display screen by one line.
CTRL | Q
other
Reset CTRL | Q command.
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Page 38
TAB When this key is pressed, the display screen is changed over just as
when the page button an the front panel is pressed.
SHIFT | TAB Returns display screen to "Base display page".
CTRL | R 0 R Read contents of HERE IS 0 for transmission.
CTRL | R 1 R Read contents of HERE IS 1 for transmission.
CTRL | R 2 R Read contents of HERE IS 2 for transmission.
CTRL | R 3 R Read contents of HERE IS 3 for transmission.
CTRL | R 4 R Read contents of HERE IS 4 for transmission.
CTRL | R 5 R Read contents of HERE IS 5 for transmission.
CTRL | R 6 R Read contents of HERE IS 6 for transmission.
CTRL | R 7 R Read contents of HERE IS 7 for transmission.
CTRL | R 8 R Read contents of HERE IS 8 for transmission.
CTRL | R 9 R Read contents of HERE IS 9 for transmission.
CTRL | R
other
Reset CTRL+R command.
CTRL | 0...9 This is the same command as CTRL | R 0...9 .
CTRL | SHIFT 14 When a wrong number is entered as HERE IS channel and it actually
begins to be sent out, the transmission of that HERE IS transmission
can be canceled.
CTRL | S RETURN S Transmit contents of all 10 HERE IS messages to tape recorder for
storage.
CTRL | U U RTTY transmit speed is slowed down to 25-baud equivalent speed by
increasing the length of the stop pulse. The baud rate of the character itself is not changed from that set by the BAUD switch.
CTRL | W 0 W0 Program HERE IS #0; end with RUB OUT key.
CTRL | W 1 W1 Program HERE IS #1; end with RUB OUT key.
CTRL | W 2 W2 Program HERE IS #2; end with RUB OUT key.
CTRL | W 3 W3 Program HERE IS #3; end with RUB OUT key.
CTRL | W 4 W4 Program HERE IS #4; end with RUB OUT key.
CTRL | W 5 W5 Program HERE IS #5; end with RUB OUT key.
CTRL | W 6 W6 Program HERE IS #6; end with RUB OUT key.
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Page 39
CTRL | W 7 W7 Program HERE IS #7; end with RUB OUT key.
CTRL | W 8 W8 Program HERE IS #8; end with RUB OUT key.
CTRL | W 9 W9 Program HERE IS #9; end with RUB OUT key.
CTRL | W
other
Reset CTRL | W command.
« (When writing into a memory channel, if number not shown in the memory channel
area is specified, that number is ignored, and the machine waits for an input of correct
number.)
« (As for the method of adding memory channel numbers, see the changing method of
memory channel composition on page 16.)
CTRL | X X Turn on transmitter and transmit data; works when SEND-AUTO-
RECEIVE switch is in AUTO; transmitter stays on until second
CTRL | X is used to turn transmitter off.
CTRL | Y Y On - off control of word mode transmission in CW mode. (block
transmission by word unit).
CTRL | Z BS Z Deletes final line in transmit buffer area; repeated BS operation
deletes preceding line without further need of CTRL | Z .
CTRL | Z SHIFT | + Deletes all text in transmit buffer.
CTRL | Z SHIFT | * On - off control of insertion of CW text in stream of otherwise RTTY in
transmit buffer.
CTRL | Z 0...9 Z Transmission of test message. (See page 19.)
CTRL | ^ ^ Turns an sync-idle; stops sending transmit text until turned off with
2ndCTRL | ^ .
CTRL | @ Inserts NUL code in transmit buffer in ASCII; BLANK code in Baudot.
No effect in CW.
*SYNC IDLE Works if both CTRL | A , CTRL | Y , CTRL | ^ .
*SYNC IDLE With word mode works if both CTRL | X , CTRL | Y , CTRL | ^ .
« Automatic reception reset feature disabled and works if both CTRL | A , CTRL | Y (only effect
in RTTY).
« BS Deletes one character when writing in transmission buffer or memory
channel.
F1 or CTRL | O In Baudot, inserts LTRS character in transmit buffer; in ASCII inserts
SI. No effect in CW.
F2 or CTRL | N In Baudot, inserts FIGS character in transmit buffer; in ASCII inserts
SO. No effect in CW.
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Page 40
« RETURN Sends out CR, CR, LF, LTRS when sending Baudot code.
Sends out carriage return code when sending ASCII code.
« LF Sends out line feed when sending RTTY.
Sends out VA when sending CW.
« CTRL | 57 All reception data is cleared away.
« SHIFT | 57 A special character "" having a slit in the middle of a circle is shown
in the transmission buffer or memory channel. When this character is
read when sending, the commands of CTRL | A or CTRL | X are
canceled, and the machine returns to reception state.
Therefore it can be used as a direct command for returning to reception state when there is no data in the transmission buffer.
« RUBOUT Returns from Commands mode to Transmit Buffer write (ordinary)
mode.
« The other functions than above are effective only in ASCII mode. When sending of function
code is necessary in ASCII mode, refer to the "designation of ASCII function codes".
« As far as the keys enclosed by are operated, preliminary operations are not necessary,
and repeated operation is possible only with the keys.
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Page 41
14. SIMPLIFIED CONNECTIONS TO THE CWR685E (CWR6850)
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Page 42
15. Precautions when using with ICOM HF transceivers
The following precautions apply when using the CWR685E (CWR6850) with the ICOM brand of HF
transceivers (IC710, 720, 720A, 730):
a. When using SW-OUT FSK connection (see PAGE 5 of the manual) to drive the direct FSK con-
nection of the ICOM transceivers, it is necessary to invert the normal sense of the FSK output
from mark = "on" to space = "on". To make this change, refer to PAGE 27 of the manual and
short-across jumper JP-1 on the digital board (top board). See PAGE 29 for the location of JP-
1. Refer to item (c) below for further considerations.
b. On the IC710 (IC701) and IC720 (but NOT the IC720A), the FSK TTL OUT connection may be
used in place of the SW-OUT FSK connection for direct FSK, subject to conditions listed in (c)
below.
c. Measure the voltage at the FSK input terminal to the ICOM transceiver:
i. If a voltage larger than 5 Volts is measured, use the SW-OUT FSK connection out-
lined in step (a) above.
ii. If no voltage is measured, use the FSK TTL OUT connection as discussed in step (b)
above.
d. Do NOT use the audio signal on pin 4 of the ICOM accessory connector for audio output con-
nection; connect the EXT-SP terminal of the ICOM to the AF IN RX connector of the CWR685E
(CWR6850) instead.
e. When transmitting CW, place a solder short across JP-2 on the digital board (top board) as ex-
plained in PAGE 7 and PAGE 45 of the manual.
f. If problems are experienced with transmit-receive control of the ICOM transceiver by the
CWR685E (CWR6850), it may be necessary to change the value of R50 on the digital board.
R50 is located at the center rear of the circuit board and is presently a 1500 Ohm resistor. Because of the high current relays used in the ICOM transceivers, it may be necessary to replace
the 1500 Ohm resistor with a 470 Ohm resistor. This has not been found to a problem in our
testing of the CWR685E (CWR6850), but may be present an some units due to ICOM production variations between units.
The special considerations for the ICOM brand of HF transceivers does not seem to apply to other
manufacture's brands of transceivers with the possible exception of the choice of audio output connection to the transceiver. ALWAYS use a low-impedance audio output such as the external speaker connection (or Kenwood phone patch output) rather than a high-impedance, low-level output
(such as the TR7 auxiliary output).
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