MFJ Memory Keyer MFJ-493 Instruction Manual Download Page 28 | Manualshive

Page: 28 / 28

MFJ Memory Keyer MFJ-493 Instruction Manual Download Page 28

MFJ-493 Instruction Manual

25

Nits

A couple features that are completely useless are the "hand key" mode and the "semi-automatic-
mode".  Once the hand-key mode is enabled you can use either paddle as a straight key but it is
very unresponsive at anything over 5 - 10 wpm.  So keep your straight key wired into the output
of this keyer.  Similarly the "semi-automatic" mode is supposed to simulate a bug, where the DITS
are sent automatically but the DAHS are manual.  Well it's even worse than the hand-key mode,
don't bother as it's for entertainment purposes only.

Another problem with this keyer is related to the weighting commands 'C' and 'W'. If you have ei-
ther of them set to a value other than zero you cannot accurately record a message into memory
using the paddles.

72/73
Richard AA4OO

http://hamradioqrp.com

«
...
26
27
28

Summary of Contents for Memory Keyer MFJ-493

Page 1: ......

Page 2: ...ch can be determined by turning the equip ment off and on the user is encouraged to try to correct the interference by one or more of the following measure Reorient the receiving antenna Relocate the...

Page 3: ...ssage 12 Menu C Semi Auto On Off 13 Iambic On Off 13 Queue On Off 13 Sidetone On Off 13 Output On Off 13 FCC Exam 13 Menu D Serial No Store 14 Iambic A or B 14 Paddle Reverse 14 Hand Key 14 Random Cod...

Page 4: ...tion sets or specific 6 character sets Word recognition mode allows practice of many common words used in amateur radio FCC Exam Simulator Sends random QSOs just like an FCC code test QSO Simulator Si...

Page 5: ...rds The MFJ 551 keyboard is guar anteed to be fully compatible with the keyer and available for 39 95 from MFJ Switching any keyboard to X or XT mode may damage both the keyboard and the keyer Keyer T...

Page 6: ...ng transmitted This allows you to enter words and phrases faster than the transmitted code This permits smoother code with less pauses because you can fix misspelled words and think of the right phras...

Page 7: ...lit either red or green Menu A accesses both banks of memories The banks are switched with Bank Select F6 The red LED indicates memories 1 4 and the green LED indicates memories 5 8 F5 and F6 remain S...

Page 8: ...rs When the buffer fills to 70 characters the sidetone will lower This is a signal to slow typing speed because when the buffer fills to 80 characters each new keypress will be lost It is best to neve...

Page 9: ...our terminal program to not add linefeed to carriage returns After the sign on message you are ready to send with the keyer All characters sent to the keyer must be in uppercase to be sent over the ai...

Page 10: ...acter AR Keyboard With the keyboard you can also store or play messages using the keyboard function keys To play a message press any keyboard function key F1 F8 To store a message press and hold the A...

Page 11: ...t be repeated Example BEACON AA5CS 5 W L P Inserts a timed pause into a message This command is followed by 4 numbers in xx mi nutes xx seconds format The command may be in either Pxxxx or Pxxxx forma...

Page 12: ...ommand in upper case Most of the menu commands can also be accessed through the Command Mode using the two character shorthand found on the front panel However some commands are not on the menu A summ...

Page 13: ...cter word length or random 1 8 character word length R2 Toggle random numeric characters on and off R3 Toggle random punctuation characters on and off R4 Toggle random prosign characters on and off R5...

Page 14: ...t dash is produced and the paddle keyboard or keyer terminal is used to change weight Paddle Press either the dot or dash paddle to increase or decrease weight Squeeze paddles to ex it Keyboard Press...

Page 15: ...r D The keyer will play the word before the word that was deleted Now you can delete another word insert text end the message or continue playing the message by entering P To insert text enter I Enter...

Page 16: ...s the user to load messages into a buffer to play sequen tially In queue mode if you press a memory button while a message is playing that message will play after the current message is done In normal...

Page 17: ...duces or R in iambic b mode Paddle Reverse RV Use Paddle Reverse to change the dot dash paddle assignments The keyer responds with RV and changes the dot paddle to dash and the dash paddle to dot Hand...

Page 18: ...announce that you are ready to for another contact Learning Code with the Random Code Generator This is an example of a typical code practice session Work first on the letters A F You can do all our...

Page 19: ...this keyer should last 2 years or more The battery can be tested by removing the cover and turning the unit ON Test the voltage of the battery from the battery to the chassis The voltage tested shoul...

Page 20: ...n Off flag 1 On 0 Off Item I Break in On Off flag 1 On 0 Off Item J Reverse paddle flag 1 Reversed 0 Normal Item K Interword spacing as decimal dot lengths 7 16 Item L Intercharacter spacing as decima...

Page 21: ...DE ON OFF IX TOGGLES IAMBIC MODES A B KC 00 15 SELECTS KEYING COMPENSATION VALUE QS ENABLES QSO SIMULATOR MODE QU TOGGLES MESSAGE QUEUE MODE ON OFF RC ENABLES RANDOM CODE MODE RV TOGGLES DOT DASH PADD...

Page 22: ...eyboard Morse Keyboard Morse 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 _ tab 1 2 3 4 5 6 7 8 4 Notes 1 Also End of Message AR 5 Start Signal KA 2 Understood SN 6 Invitati...

Page 23: ...R transceiver HW how XMTR transmitter K go ahead XYL wife Meaning of Q Signals QRA The name of my station is QSB You signal is fading QRL I am busy Do not interfere QSD Your keying is defective QRM I...

Page 24: ...Electrolytic Radial 50 V 1 F C7 Capacitor Electrolytic Radial 35 V 2 2 F C8 C9 C10 C19 C26 C27 Capacitor Multilayer 2 X7R 10 50 V 1 F C14 Capacitor Disc Ceramic 1 kV 20 1 F C11 Capacitor Electrolytic...

Page 25: ...file 20 Pin FOR U3 U5 Socket IC Low Profile 28 Pin FOR U8 U9 U10 Socket IC Low Profile 16 Pin FOR U6 U7 U12 Socket IC Low Profile 14 Pin P2 Jumper Ribbon 12 Pos Singleline J1 Jack 1 4 Phone PCB Open S...

Page 26: ...MFJ 493 Instruction Manual 23 MFJ 493 Schematic...

Page 27: ...MFJ 493 4 TYPE help list FOR LIST OF ALL COMMANDS help list HELP LIST INDEX FOR MFJ 493 MEMORY KEYER help LISTS GENERAL TOPICS help program LISTS MEMORY STORING INSTRUCTIONS help transmit LISTS TRANSM...

Page 28: ...to the output of this keyer Similarly the semi automatic mode is supposed to simulate a bug where the DITS are sent automatically but the DAHS are manual Well it s even worse than the hand key mode do...

Reviews:

No comments

Brands by name

0 1 2 3 4 5 6 7 8 9 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

Popular brands

Load more brands