etm-8c manual

etm-8c manual

Discover everything Scribd has to offer, including books and audiobooks from major publishers. Start Free Trial Cancel anytime. Samson Electronic Keyer ETM-8C Uploaded by maxibaxi 0 ratings 0% found this document useful (0 votes) 263 views 6 pages Document Information click to expand document information Description: Original user manual and schematics. Report this Document Download Now Save Save Samson Electronic Keyer ETM-8C For Later 0 ratings 0% found this document useful (0 votes) 263 views 6 pages Samson Electronic Keyer ETM-8C Uploaded by maxibaxi Description: Original user manual and schematics. In German and English from samson Full description Save Save Samson Electronic Keyer ETM-8C For Later 0% 0% found this document useful, Mark this document as useful 0% 0% found this document not useful, Mark this document as not useful Embed Share Print Download Now Jump to Page You are on page 1 of 6 Search inside document Browse Books Site Directory Site Language: English Change Language English Change Language. Die Speicheranordnung gestattet in Verbindung mit der Pausenautomatik eine bequeme Zusam- mensetzung von Texten aus vorbereiteten Textteilen.The iambic feature of the ETM-8C permits alternate dots and dashes to be formed and properly spaced by simultaneously squeezing both levers of the keyer. A dash-dot or dot dash sequence is produced depending on the lever closed first. Pressed after a memory key it provides the continuous repetition of a message.Registrieren Sie sich jetzt. In contrast to other advanced keyers, its control requires neither a myriad of switches and knobs nor complicated keypad sequences. Instead, commands are simply sent to the keyer in Morse code using your paddles. Some of its features are listed below: Selectable timing patterns. Messages may “call” others and contain functions. Tune function for transmitter adjustment. Timed pauses within messages. Break in message to allow paddle-insert text. Ultra-speed mode for METEOR-SCATTER.http://airporttransfersheathrow.com/userfiles/e495-gigaset-manual.xml

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Iddling current It is initialized as follows: Check polarity signs on batteries and holder. If at any time the keyer appears to be operating abnormally, the batteries should be checked for low voltage. If you don’t use your keyer for a long period, it is recommended to remove the batteries from the holder. Solder the shield to pin 2 and the inner conductor to pin 5 of the DIN-connector supplied with the keyer. The keying output is factory wired for positive keying voltage. Negative keying output can be obtained by changing the red jumper on the circuit board. The travel for dots and dashes can be independently adjusted with the milled screws on both sides of the metal housing of the paddles. A setscrew for an allen wrench allows the adjustment of paddle tension. Insert 3 standard size AA batteries (1.5 Volts each) into the battery holder. Check polarity signs on batteries and holder. If you don’t use your keyer for a long period, it is recommended to remove the batteries from the holder. The keying output is selectable for positive and negative keying voltages. The keying output is factory wired for positive keying voltage. Negative keying output can be obtained by changing the red jumper on the circuit board. Solder the shield to the common solder lug and the two inner wires to the dot and dash contacts of your paddles. To alert the keyer that a function is desired, momentarily press buttons 1 and 2 simultaneously. The keyer enables the monitor, disables output keying, and acknowledges your request by sending “F”. When the function is complete, the monitor is automatically restored to its previous state, output keying is enabled, and the previous operating speed is restored. The keyer confirms the new state by sending “ON” or “OFF”. When on, auto-spacing aids the operator in forming properly spaced characters within a word. Character crowding is prevented by forcing at least 3 elements of space whenever more than 1 space has been detected.http://www.cmcoleads.com/userfiles/e471vle-manual.xml

This effect is very noticeable at low speeds and can be felt by high-speed operators as well. Without auto-spacing, character spaces are determined by the operator. The decrement function accommodates resending the last serial number, as might be needed when a repeat of a contest exchange is requested. This speed is employed for entering commands and loading messages. It is independent of the operating speed and is unaffected by the analog speed control. Keying output will follow closures of the dot or dash paddle levers, allowing hand-sent code. Normal iambic keyer operation is regained by any button closure. Although similar to increase weight, the adjustment is independent of speed. The keyer confirms the new mode by sending “C” or “R” as appropriate. Note that the 4 digits must be entered with leading zeros if needed. The keyer confirms the new mode by sending “ON” or “OFF” as appropriate. When off, message button activations are acted upon immediately, canceling any message in progress. When on, up to 8 button presses are remembered in order and acted upon in succession as each message completes. The speed function establishes the current knob position at the entered speed. For example, T99 will change to a monitor tone of 990 Hz, while T54 would give a frequency of 540 Hz. The default setting is V0, a timing pattern which has proven to be the most user-friendly for many operators. Other values are as follows: A higher weight produces a heavier sound, and a lower weight causes characters to sound lighter. Once set, weight remains constant and independent of speed. Tuning is stopped by simply tapping either the dot or dash paddle lever. See SERIAL NUMBER OPTIONS. State information is played to the operator in Morse code with the monitor automatically enabled and keying output disabled. After receiving the “?” reply, enter the desired inquiry command as follows: Inquire Tone The keyer sends the first two digits of current monitor frequency.

Inquire Time Pattern The keyer annunciates the time pattern. Inquire Weight The current weight percentage is sent by the keyer as two digits. Inquire Message 2 message 2 is played. Inquire Message 3 message 3 is played. Inquire Message 4 message 4 is played. When encountered during a message play, the functions are executed. Embedded command strings and their use are explained below. The operator may then insert one or more words using the paddles. Once the paddle input has begun, the break function is canceled when inactivity exceeding a word space is detected. The interrupted message is then resumed. A break may also be aborted by pressing a button, which will cause the corresponding message to play immediately. Its value is then automatically incremented by one. Also see SERIAL NUMBER OPTIONS. Pressing a different message button will terminate that message and begin the new message attached to that button.Programmed transmission speed accuracy exceeds 1%. If the current message is 1, a continuous loop is created. If the current message is 2, a continuous loop is created. If the current message is 3, a continuous loop is created. If the current message is 4, a continuous loop is created. This means that each message can be any length you want, as long as the total memory used does not exceed 220 characters. In Character Mode, each Morse character uses one byte of message memory.Then press and hold the desired message button. After 2 seconds, a tone is emitted and the button may be released. The keyer then sends “C” to confirm Character Mode and waits for input. When each word is complete, simply stop sending. The keyer will detect and insert a word space and prompt you for the next word by sending “I”. You will note that the “l” the keyer sends between words, indicates a word space, is sent at a higher tone and at a higher speed to make it more easily distinguished from your hand sent CW.

There is no limit to the elapsed time between words, so there is no need to hurry. If a mistake occurs, simply send an error indication of 7 or more dots. The keyer will locate the last word and erase it. It will then play the “new” last word (if any) so that the position in the message is known exactly. As many words as needed can be erased this way. When the desired position is achieved, continue to enter the remainder of the message. To completely clear a message, just end the load in this way after the “C” is sent. In the event that message capacity is exhausted during the load, automatic termination will occur. Real-time mode stores and replays messages exactly as entered. Along with somewhat reduced message capacity, the primary disadvantage of real-time messages is that they cannot contain embedded functions. Then press and hold the desired message button. After 2 seconds, a continuous tone will emit, at which time loading is enabled and the button may be released. The keyer then responds by sending “R” to confirm Real-Time Mode and waits for paddle input. All inter-character and inter-word spacing is strictly up the operator. To end the message, simply press the message button momentarily. Note that the elapsed time from the end of the last character to message termination is stored as space at the end of the message. If room is exhausted during the load, the message is terminated automatically. Both character-mode and real- time messages can be played regardless of the current load mode. Each message will be played in succession as the previous completes. Then pressing button 1 three times and button 4 once, in quick succession, will cause “CQ CQ CQ DE WB8ZRL” to be played. As many as 8 button activations will be remembered in this mode. With the input queue disabled, however, a button closure immediately cancels any current message and starts the commanded one. Otherwise the paddles always take priority over message playback.

A better way is to simply press any two message buttons during message transmission. The message will terminate with no additional key closure being transmitted. The message will be played back complete with embedded commands. The keyer will read out the memory remaining in bytes. Examples include nonexistent functions, invalid numeric parameters, and exhaustion of message capacity during a load. Zeros may be replaced by “O” or “T”, nines replaced by “N”, and leading zeros suppressed. The options available are: The stored commands are executed as encountered when the message is played. A consecutive serial number, for example, is needed in several contest exchanges. An ARRL Sweepstakes exchange, for an answering station, could be programmed as exemplified by: “NR. A second message might contain a serial number repeat message.Or your two or three favorite operating speeds can be programmed into messages for instant changes with a tap of button. Call nesting may be as deep as desired. Thus, message 2 can call message 1 which calls message 4 which calls message 3! In fact, continuous loops can be programmed. A loop will result if a message calls itself (directly or via some other message). The message will play continuously, with 3,5 seconds in between. When an answering station is heard, simply tap either paddle to cancel the loop. Pressing any two message buttons during message transmission will terminate the message with no additional key closure being transmitted. Here, activating message 1 first causes “QRZ TEST DE WOWP” to be sent.The message then automatically continues and sends “599 IA BK” followed by another break. The other station’s report is then copied while the keyer waits. This completes the break and causes an automatic loop back, restarting the whole sequence. Rather, the speed control on the front panel is designed to cover roughly a 1:3 speed range. But most users will prefer a speed range somewhere in between.

Setting this range could hardly be easier. Turn the speed control knob all the way to the right, Now press all four control buttons down simultaneously, then release them. The keyer always sets itself at 20 WPM at whatever point the speed knob is set whenever you push the four control buttons together as you just did. And it will stay that way until you reverse it again by pushing those two buttons again, or until the battery wears out. Neat, huh? Now, increase the speed of the keyer. See how the speed-control is linear. Reset the speed range if you like. If you are comfortable sending at 20 WPM, turn the speed control knob all the way to the left, then push the four top buttons again. Or set the speed control pointing straight up, then press the four buttons.Now let’s learn how to load a message into the memories. Here’s how to store a message in memory. First, set a speed that is comfortable for you. Now press the far left button button down, (button number 1), and hold it several seconds until you hear a tone. Then release the button. The keyer will send a “C”. (This stands for character mode. But don’t worry about what that means for now. We’ll get into later.) Let’s load a message, “the quick brown fox”. The first word is “the”, so simply send “the”. Release the paddle. There. The keyer just sent a Morse “I” to you. That means it has accepted the word, and has injected a word space. Now, send “quick” through the paddles, then stop again. The keyer will send another Morse “I”. At this point, the keyer prepared to wait as long as necessary for you to program in the next word. If you want, you can take time to go get a cup of coffee and return to the shack. It will still be waiting for the next word. The keyer will send back to you “brown”, telling you it has erased the incorrectly sent word (in this case “fax”) and backed up to the word before, “brown”.

It sent the word “brown” to remind you where you are in the message, and is ready for you to resume loading the message you want. So now send “fox”. OK? Play it back to make sure you got it right. The two messages will play, one after the other.We will get into that later.) You can stop a message being sent at any time by simply touching your paddles, which instantly kills the memory transmission and puts you back in the normal keyer mode. That will terminate a message during transmission with no additional key closure being transmitted. To overwrite it, press down the memory button and hold it down for several seconds until you hear the tone. Release the button, wait for the “C” indicating you are in character mode, and enter away. If you want to simply kill the message, just press the button again after you get the “C”, and the message will be closed empty, until you program a new message later. Press the left two buttons again. You will hear the speaker send an “F”, even though the monitor is disabled for normal sending. Now send another “M”, which you will hear through the monitor as you send it. That’s it. The monitor is on again. The monitor control function is a toggle command, and you have learned how to switch it on or off. Note that the “F” the keyer sent did not go out over the air, nor did the “M” you sent to toggle the monitor function. In pressing the two function buttons, you took the keyer “Off line” and of the air until you had completed you command. Since The “O” is meaningless to the keyer, it will send a raspy signal, a Bronx Cheer. That means you goofed. To recover, simply press the two left buttons again, and send the “M” again. The default is 700 Hertz, but the frequency can be changed from 500 to 990 Hertz. To change the tone, enter the Function Mode. For example “T99” will change to a monitor tone of 990 Hertz, while “T54” would give a frequency of 540 Hertz.

The existing monitor frequency can be obtained by entering the Inquiry Mode, then responding to the “?” prompt by sending the letter “T”. The keyer will send an “ H “, as in “ H and key “. Now, any time you press either the left or the right side of the paddle, instead of sending dots or dashes, you will get continuous output. This lets you hold the “key” down while you tune up that big rig (into the dummy load, of course) in easy stages. When you are finished, press any button, and the keyer will be back to normal. You’ve learned how to set the speed you want, how to program messages, how to load the rig. It’s time to hook the keyer up to the rig, get on the air and make a few QSOs, and enjoy how fluid and clean CW can be. And when you are ready, move on the next section of this tutorial, and we’ll go into some of the fancier options. They are easy to learn too, but right now let’s use what we have learned. Let’s start exploring the next level of features your keyer has to offer. Let’s turn the rig off, and go through some more of the commands available to you. The keyer responds with a “?” in CW. Now simply send the letter “S” through the paddles. The keyer will respond by sending in Morse either “ON” or “OFF”. Now, press the two right buttons, and send the “Q” again. You will get the same answer. The point here is that the Inquiry Mode only tells you what the keyer is set for, and does not affect the setting. The Function Mode, on the other hand, would have reversed the setting. A little later we will actually discuss the “Q” command. You can read out the other messages by asking for 2, 3 or 4. If there is no message stored, there will be no response. Isn’t it easier, to just push the number 1 button and have it read out. Yes, except that in doing so the stored message will go out over the air. Reading the memory contents through the Inquiry Mode will play the message back over the monitor speaker, even if the monitor is toggled out, and not out over the air.

You will recall using the function mode to toggle the monitor speaker on and off earlier. The function mode is a very powerful tool and is used to control of a number of other keyer functions we are now going to explore. The keyer responds by sending “F” in Morse. Now, send the letter “S”, then send a “10”. Now, regardless of where the speed pot is set, the keyer speed is set at 10 words per minute.A little fast for you. Turn the speed down to a comfortable level and reset the speed, Not to worry. That’s why the keyer also has the four button speed reset, remember. Set the speed control at the point you want to represent 20 words per minute (all the way clockwise for the 6 to 20 WPM range), then press all four of the top buttons together, and release. You are back at the speed range you are comfortable with. Normally, the code speed in the Function Mode is identical to the regular keyer speed. But, if you like, you can set the Function Speed at a fixed value, with a speed range available of 6 to 30 WPM. This feature could be valuable to you if you like sending at high speeds, for example, but want a slower, more deliberate speed to access anything through the Function or Inquiry Modes. This will set your Function Mode speed at 10 WPM. Immediately after you have finished sending “10” the keyer returns automatically to normal mode. If the keyer speed was set at 20 WPM before, you are back at 20 WPM. But now enter the Function Mode again. The “F” prompt will come back to you at 10 WPM. And now, while you are entering functions commands, the keyer is set at 10 WPM. As soon as you are finished with the Function Mode, the keyer will return to the normal speed you were at, in this case 20 WPM. Now the Function Mode speed will be set the same as the normal mode speed. The default setting is ON, which most operators prefer. To turn it off, enter the Function Mode and answer the “F” prompt by sending a “Q”.

The keyer will respond by sending “OFF”, indicating that it has turned the queuing function off. To restore queuing, again enter the Function Mode and again send the “Q” command. The keyer will respond with “ON” indicating that queuing has been restored. The default weighting is 50%, the supposedly ideal weighting. And of course, for many users it is. But the weighting can be easily and precisely modified. Answer the keyer’s “F” response by sending “W30” from your paddle.Sure sounds different, doesn’t it. That’s 30% weighting. Now enter the Function Mode again, and this time send the command “W70”. Send your call again.However, at high speeds of sending, some operators prefer heavier weighting, using perhaps 55% or even 60%. Again, operators at slower speeds, particularly in the 6 to 10 WPM range, may prefer a weighting of perhaps 45% or 40% for a more pleasant sound to their ears. If you are inexperienced in such matters, the best advice is to restore the weighting to 50% and leave it until you have a specific reason to change it. You might want to get a friend who is a good CW operator to listen to your signal over the air and advise you. To check simply press the right two buttons to enter the Inquiry Mode, and answer the “?” prompt by sending a “W” through your paddle. The keyer will send the spacing percentage it is presently set for. The usual problem is that they tend to shorten the length of the dot or dash sent to the rig from the keyer. The reason fur such delays is usually to allow QSK circuitry time to function. Such keying errors are the same no matter what speed you are sending at. A recent major transceiver, for example, subtracts 18 milliseconds from all keyed dots and dashes. This gives the listener to your rig an impression of light weighting, especially at higher speeds. However, such a correction would be correct only at a single speed setting.

To zero out an 18 millisecond error, enter the Function Mode, then answer the “F” response with a “K18” command sent through your paddles. The “18” adds 18 milliseconds of transmit time to every transmitted dot and dash, thereby canceling out the keying error. There are several ways. One is to ask stations on the air about how your weighting sounds, particularly if it is set at 50%. If other operators tell you it is light, try adding say 10 milliseconds (“K10”) and ask for further reports, preferably from the same station. Remember, it takes only a few seconds to change the setting for an experiment. Some reviews using photographs of a dual trace oscilloscope, show the actual keying against the transmitter output, thus displaying the keying error. Again, in some cases, the manufacturer actually specifies the variation in the manual. But if you have only a single trace scope or a station monitor available, you can still enter the appropriate correction with a little “cut and try” experimentation. Then (using a dummy load) send a string of dots, and synchronize the monitor for a stable image showing multiple dots on the screen. Measure the space between dots and compare it to the length of the dots themselves. If the dots are shorter than the spaces in between, experiment with the “K” function value until the transmitted dot length matches the space length. Note that having this, if you have been using a heavier weighting based on “on the air” comments, you almost certainly will want to change to a lighter setting, very probably 50 percent. Auto-spacing has always been a bit controversial among CW operators; some operators prefer it while others abhor it. What auto-spacing does is force the operator to leave at least three space elements between transmitted letters, so that with auto-character-spacing letters are not run to close together.

When you send pause before sending the next letter, the keyer senses that more than one space element has gone by in the timing, and will not begin transmission of the next letter until a full three space elements have passed. Without auto-spacing, the operator alone is responsible for the timing of transmitted letters. Other operators relish the extremely precise letter spacing that auto-spacing allows. To turn it on, enter the Function Mode, then answer the “F” prompt by sending “A”. Since auto-spacing is a toggled function, this will reverse the existing state, and auto-spacing will be turned on. Once it is on, send a little CW for practice, and see what you think. Auto-spacing is much more noticeable at slower speeds, especially for operators To turn auto-spacing off, again enter the Function Mode (by pressing buttons one and two, in case you forgot) and answer the “F” prompt by again sending the letter “A” through your paddle. Respond to the “?” prompt with the letter “A”. The keyer will answer with either “ON” or “OFF”. You will almost surely find the implementation far friendlier than that of any other keyer you have ever used, and you might just change your mind. Give it a try! You also learned that you could remove a mis-sent word by sending a string of dots, which the keyer would recognize and would then erase the last word loaded. These techniques allow maximum utilization of the memory, allowing the longest possible message to be loaded. They also are more convenient for most operators. In Real-Time Mode, what you load is mirror-imaged back to you, warts and all. This mode can be useful if you have a special characteristic way of sending something, usually your call sign. For example, if your call is WY9IE, you might prefer a little extra spacing between the “I” and the “E” for emphasis, so the “E” won’t get lost in the shuffle.

In Character Mode message loading, you could add a complete word space between the “I” and the “E”, but that could be excessive. In Real-Time Mode, you get the exact spacing you want. One is that it is wasteful of memory. Another disadvantage is that since the Real-Time Mode is a mirror image of what you send to the memory, you loose the ability to correct mistakes in loading by sending a string of dits. The command to switch between Character Mode and Real-Time Mode is a toggle command. To switch it, enter the Function Mode, then answer the “F” prompt by sending “L”, which will toggle you into the opposite load mode, and indicate the new Mode with a “C” or an “R” as appropriate. Whenever you load a message by pressing the memory channel button several seconds, you will be informed which memory load mode the keyer is in; the keyer will send either a “C” for Character Mode, or an “R” for Real- Time Mode. Note that some memories can be stored in Character Mode while other are stored in Real-Time Mode. The keyer will accommodate both at the same time. Simply enter the Inquiry Mode by pressing down the two right buttons, and answer the “?” prompt by sending “L” with your paddles. The keyer will respond with either a “C” or an “R”. Of course, many of the commands and features we have explored in this session will likely be used lightly or not at all. And that is exactly as it should be. The keyer defaults are set to reflect the desires of most CW operators. But by now you surely have a greater understanding about some of the features of the keyer, and have doubtless, customized several of the defaults for your own satisfaction. But take time off before you get into that. Get on the air and make some contacts with your keyer, and play with what you have already learned. These features include several more Function Mode commands, and another type of command, the embedded command.

Embedded commands are inserted into programmed messages, and allow pauses, closed loops, calling one message from within another, contest serial numbers, speed changes inside the message and more. It is a special command inserted (through the paddles) into a message being loaded into memory. Embedded commands can only be used when a message is being loaded in the Character Mode, rather than the Real-Time Mode. An embedded command must always follow a word space, where the keyer sends an “I” indicating the word space. The underline dash is easier to recognize than a simple space. OK? Good. First, let’ call one message from inside another. See how it keeps playing over and over again. You have created a closed loop, with the message continuously calling itself. Of course, to stop the message, all you have to do is touch your paddles or simply press any two message buttons. Now you should have the CQ message play, sign your own call, and then after a five second pause, repeat it again. This closed loop message with a pause for listening is great for beacons, contest CQ on a relatively dead band, Meteor Shower skeds etc. See how the pause allows internal breaks in message transmission. But remember, if you touch the paddle during the pause, the message will be killed, and you are restored to normal mode. Almost immediately after you release the paddles, the “DE WY9IE” will play.You may find a higher sending speeds you are encouraged not to tarry on your own spacing or the message will try to resume before you are finished, then will cease when it senses your continued paddle closures. This command will stop the message at the point where it is embedded. You can take your time sending manually with pauses as long as desired. The message doesn’t resume play from where it was left off before you press the same message button again. Pressing a different message button will terminate the message and begin a new message attached to that button.http://directealgerie.com/images/bose-wave-system-owner-s-manual.pdf