MFJ-9420 Installation Manual
20-Meter SSB Travel Radio
MFJ-9420 CONTROL LOCATION AND FUNCTION
ANTENNA
MFJ ENTERPRISES, INC.
STARKVILLE, MS USA
POWER
12-15VDC
1.2 AMP
+
IN
OUT
CW
KEY
INPUT
MIC
GAIN
2
1
5
3
4
REAR PANEL
1. POWER JACK:
5.5mm OD, 2.1mm ID, (+) to center pin.
2. ANTENNA JACK:
SO 239 for standard coax plugs.
3. MIC GAIN:
Sets Speech amp Gain (normal setting 12:00).
4. CW ADAPT:
Engages CW adapter (accessory).
5. KEY:
Accepts straight key or keyer.
XMIT
POWER
MIC
TUNE
ON
ON
OFF
OFF
150 000
050
100
150
200
250
300
350
VOLUME
MFJ 20-METER SSB TRANSCEIVER
MODEL MFJ-9420
TUNING
SSB CW
CW SSB
MH z
14.000
1
3
5
7
9
PRO CESS
0
S
7
+10 +30dB
10
4
0
0
-40
20
6
8
7
2
3
5
1
4
FINE
TUNE
FRONT PANEL
1.
METER:
Show signal strength on RX, ALC on TX.
2. POWER SWITCH:
Turns power on to transceiver.
3. MIC:
5 Pin Din Jack for Dynamic Microphone.
4. TUNE:
Injects carrier for ATU adjustments.
5. XMIT:
LED illuminates when transmitting.
6. TUNING:
Tunes in stations, indicates VFO frequency.
7. FINE TUNE:
Allows for fine tune adjustment.
8. VOLUME:
Adjusts listening level.
