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MFJ-498 Instruction Manual

pressed. These characters are lost and will not display on the LCD. As code plays
the buffer will empty and eventually the bottom line will catch up with the top.

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Содержание MFJ-498

Страница 1: ...yboard Operation 4 Paddle Operation 5 Adjusting Code Speed Weight And Tone 6 Code WPM Speed F10 6 Weight W 6 Sidetone Frequency T 6 Message Memories 7 Embedded Commands 7 Typical Settings for a Contes...

Страница 2: ...9 seconds Message loop Adjustable Parameters Code speed is variable from 5 to 100 WPM weight varies from 5 to 95 Sidetone Speaker Internal sidetone speaker with adjustable volume and frequency Morse C...

Страница 3: ...ntrolled by the keyboard interface The MFJ 498 has eight 4 000 character message memories which can be loaded by keyboard When saving a message embedded commands can be inserted that repeat the messag...

Страница 4: ...supplied with an IBM AT compatible keyboard The MFJ 498X package does not include a keyboard The unit is guaranteed to support the supplied keyboard but may be used with other standard 101 key AT sty...

Страница 5: ...rs or code sent by the user are played on the sidetone speaker This allows the user to hear what he is keying or typing Only when the keyer is used with a paddle is the code sent as soon as it is keye...

Страница 6: ...MFJ 498 Instruction Manual pressed These characters are lost and will not display on the LCD As code plays the buffer will empty and eventually the bottom line will catch up with the top...

Страница 7: ...s not included on the keyboard use the Alt key The MFJ 451 produces prosigns by removing the intercharacter spaces from characters of keys while the Alt key is pressed ex To produce the prosign AA hol...

Страница 8: ...neous code is not sent over the air Code WPM Speed F10 Code speed is set using the front panel control and the F10 key The front panel control changes the wpm speed range while the F10 key changes spe...

Страница 9: ...sound the present tone setting Use the up and down arrow keys to increase or decrease the sidetone setting Note that the tone will not affect your transmitted signal only the sidetone speaker frequenc...

Страница 10: ...lete the saving of a message press Enter An end of message character will sound to confirm the save A programmed message can be replayed by pressing the appropriate function key F1 F8 The keyer will d...

Страница 11: ...or at the end of a contest when most stations have already been worked Memory 2 is set for busy times when contacts are plentiful This memory is set with a simple quick message A listener will immedia...

Страница 12: ...ar traffic between two stations in a simulated QSO Use this feature to reinforce your copy or to study for your code test Random Word Generator The random word generator sends words from the data base...

Страница 13: ...the keyer sends alphabetic numeric prosign or punctuation characters Use the command mode and APNG to enable any or all character types to be sent The keyer s default is C off 5 character words with a...

Страница 14: ...while character speed is set to 18 words per minute Farnsworth Hit ESC or ENTER Get ready to copy Press F9 and type R While you take copy you may notice that the characters being sent are also displa...

Страница 15: ...ing an element For example a release during the dash in produces or A in iambic a mode but produces or R in iambic b mode C When C is off the random code generator sends character types alphabetic A n...

Страница 16: ...outputs allowing practice operation The output is automatically disabled during memory message storing command mode operation status information and keyer setup P Enables on or disables off punctuatio...

Страница 17: ...r OFF If the sidetone is disabled it will still play command messages and status information Z Starts the random word generator After entering Z the MFJ 498 will start sending random words that are fr...

Страница 18: ...M S Y 4 _ B H N T Z 5 C I O U 0 6 D J P V 1 7 E K Q W 2 8 Start F L R X 3 9 Invitation to transmit See Morse Code Table on page 16 for a more complete listing of the code Q This command queries the un...

Страница 19: ...MFJ 498 Instruction Manual...

Страница 20: ...ment Alt Used for making prosigns by removing the intercharacter spacing of keys pressed while the Alt key is also pressed For example to produce the prosign AA hold the Alt key down press A twice the...

Страница 21: ...MFJ 498 Instruction Manual Spacebar Inserts a word break space into the message in normal operation While the MFJ 498 is in handkey mode the spacebar is a straight key...

Страница 22: ...ter set 9 A Random alphabetic characters on off B Iambic mode A or B toggle C Fixed 6 character sets on off on fixed sets off alphabet numbers punctuation and or prosigns E Starts the FCC Exam Simulat...

Страница 23: ...MFJ 498 Instruction Manual...

Страница 24: ...Morse character Keyboard key Morse character A A 5 5 B B 6 6 C C 7 7 D D 8 8 E E 9 9 F F 0 0 G G AAA H H MIM I I KR J J OS K K WG L L AF M M DN N N IMI O O DU P P _ _ IQ Q Q BT R R AR 1 S S SN 2 T T E...

Страница 25: ...or 7 00 covering postage and handling 3 MFJ Enterprises Inc will supply replacement parts free of charge for any MFJ product under warranty upon request A dated proof of purchase and a 5 00 personal c...

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