MFJ-462B MultiReader
7
RTTY/ASCII/AMTOR FEC
First of all, set the DATA/CW switch on the front panel OUT, to the DATA position. The MFJ-462B is
calibrated for optimum RTTY performance with a MARK tone of 2125 Hz and a SPACE tone of either 2295,
2550, 2975 Hz for shifts of 170, 425, and 850 Hz, respectively. Optimum ASCII/AMTOR FEC performance
occurs with a MARK tone of 2125 Hz and a SPACE tone of 2295 Hz for a 170 Hz shift. Vary the frequency dial
on your radio until the LOCK LED is lit constantly. While keeping the LOCK LED lit, vary the frequency until
the DATA LED blinks with the audio tone shifts of the received signal. If the data is garbled, try changing baud
rates or REVERSE mode, or even the SIGNAL SETUP operating mode. This is because RTTY and AMTOR
FEC signals sound alike, and you may be trying to decode RTTY, with the MFJ-462B set to the AMTOR FEC
mode, or vice versa.
CW Abbreviations:
73 best regards MSG message
88 love and kisses NR number
ABT about NW now
AGN again OM old man
ANT antenna OP operator
BK break R are, received, roger
CPY copy RCVR receiver
CQ general call to any station RIG equipment
CUL see you later RST readability, strength, tone report
CU see you SIGS signal
DE from STN station
DX distance, rare station TEMP temperature
ES and TKS thanks
FB fine business TNX thanks
FER for UR you are
FREQ frequency U you
GA good afternoon, go ahead WL well
GE good evening WT watt
GM good morning WX weather
HR here XCVR transceiver
HW how XMTR transmitter
K go ahead XYL wife
Technical Assistance:
IIf you have any problem with this unit first check the appropriate section of this manual. If the manual does not reference
your problem or your problem is not solved by reading the manual, you may call MFJ Technical Service at 601-323-0549
or the MFJ Factory at 601-323-5869. You will be best helped if you have your unit, manual and all information on your
station handy so you can answer any questions the technicians may ask.
You can also send questions by mail to MFJ Enterprises, INC., 300 Industrial Park Road, Starkville, MS 39759; by FAX
to 601-323-6551; through Compuserve at 76206,1763; or by email to 76206.1763@Compuserve.com. Send a complete
description of your problem, an explanation of exactly how you are using your unit, and a complete description of your
station.
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