OPERATING PROCEDURE TO CW(CARRIER WAVE) MODE
This is communicated by MORSE-CODE. This can be advantageously used
especially while channels in busy or communication in long distance.
1. TRANSMIT. Press CW KEY by MORSE-CODE switching Selector to CW
MODE and connecting CW KEY to CW KEY JACK. Your COBRA 148GTL-
DX transceiver is automatically changed from RX to TX when CW KEY is in
(MARK) and keeping the transmitting condition without being transmitted
MORSE-CODE during 0.15-second even if CW KEY is in (SPACE). And,
thereafter the unit is set in RX condition automatically. Be sure that the
CODE transmitted from your station is heard as monitor sound from internai
speaker (see Fig. 1).
I 1 i 2 i
1
i
2
« ►
<
-------
1 : MARK
TX.
SIGNAL ON
TX.
NO SIGNAL
RX
'•"CAUTION : 1. MARK when CW KEY is closed.
2. SPACE when CW KEY is opened.
2. RECEIVE. Adjust FINE CONTROL of VOICE LOCK for your desired sound
when your transceiver is received MORSE-CODE Signal.
ROGER ВЕЕР
When this switch is placed in the ROGER ВЕЕР position, your radio auto
matically transmits the audio sign at the end of your transmission. The listener
can note easily that your transmission is over through the sign. Please note that
this ROGER ВЕЕР transmits 0.15-second at the moment PRESS-TO-TALK
SWITCH KNOB is off.
PRESS-TO-TALK OFF
Summary of Contents for 148GTL-DX
Page 32: ...со SO AOJ VR2 BLOCK DI AGRAM ...
Page 33: ...SCHEMATIC DIAGRAM ...
Page 41: ...Parts Layout Top View Î37 2SB525C 1 4 1 5 ...
Page 42: ...PARTS LAYOUT Top View ...
Page 43: ...ADDED PARTS MAIN PCB Bottom View PC 879AB ...
Page 44: ...COPPER PATTERN SWR PCB CH SW PCB LED PCB CD ...
Page 48: ...го w INTERNAL DIAGRAM IC s MB87I9 ...
Page 49: ...INTERNAL DIAGRAM IC s го А ...
Page 50: ...INTERNAL DIAGRAM IC s S 0 4 2 P 25 ...
Page 58: ...со го BLOCK DI AGRAM ...
Page 59: ...PB OIO SCHEMATIC DIAGRAM ...
Page 60: ...WiRING DIAGRAM 3 5 3 6 P C 881 P C 8 8 0 ...
Page 66: ...COPPER PATTERN MAIN PCB ...
Page 68: ...P B O I O ADDED PARTS MAIN PCB H fs il 8 46 ...
Page 70: ...COPPER PATTERN SUB ASSY PCB s ...
Page 71: ...PARTS LAYOUT MIC JACK 49 ...
Page 74: ...INTERNAL DIAGRAM IC s MC14008B 1 4 Cou l 13 S 4 13 S 3 11 S2 10 S 1 16 15 14 13 12 11 10 9 52 ...
Page 75: ...сл С О INTERNAL DIAGRAM IC s OSC out Г 2 out FS PO PI P2 P3 PA P5 P6 P7 P8 MC145106 ...
Page 76: ...INTERNAL DIAGRAM IC s 14 0UT4 13 I N 4 12 lN 4 11 VEE 10 IN 3 9 I N 3 8 0UT3 TA75902P 54 ...