MFJ-1224 Instruction Manual
RTTY/CW Computer Interface
13
5
ON
GENERAL PTT
N/A
5
OFF
KANTRONICS PTT
N/A
6
ON
PTT INPUT
HIGH PTT
6
OFF
PTT INPUT
LOW INPUT
7
ON
CW DEMOD OUTPUT
LOW TONE
7
OFF
CW DEMOD OUTPUT
HIGH TONE
8
ON
RTTY DEMOD OUTPUT
LOW TONE
8
OFF
RTTY DEMOD OUTPUT
HIGH TONE
MFJ-1223 RS-232 INTERFACE
The MFJ-1223 is used to connect the MFJ-1224 ports. Since the MF-1224 to uses TTL
voltage (+ 5VDC) and RS-232 ports are + 12VDC, an interface becomes necessary to
interconnect. Our MFJ-1223 allows the use of the port.
I. VIC 20
A. Used with the MFJ-1252 or the MFJ-1264 Software.
NOTE: The connector cable supplied with the software has the proper connections
for the GENERAL CONNECTION PORT and the VIC USERS PORT. The DIP
switches are set at the factory for this computer, software, and cable.
MFJ-1224 General Connector
User Port
MFJ-1224 DIP Switches
RTTY DEMOD
B, C, L
1
ON
CW DEMOD
B, C, L
2
ON
GND
N
3
ON
CW ID
H
4
OFF
RTTY
J, M
5
OFF
PTT (IN)
NOT USED
6
OFF
CW KEY
K
7
ON
+5VDC
NOT USED
8
OFF
_____________________________________________________________________
B. Using Kantronics Hamsoft
and Hamtext
software.
NOTE
: The connector cable supplied with the software will connect directly between
the K CONNECTOR and the USERS PORT. The switches will have to be
set for use with this software.
