MFJ-616 Speech Intelligibility Enhancer
TM
Instruction Manual
2
JACKS AND CONTROLS
Front View:
Volume Balance 300 Hz 600 Hz 1200 Hz 2400 Hz
Bypass Input A/B Speaker Phones Power
A
B
A
B
A
B
MFJ-616 Speech Intelligibility Enhancer
1
23456
7
8
9
10 11
1. Volume:
Adjusts overall loudness of both channels.
2. Balance:
Establishes central balance between right and left speakers.
3. 300 Hz:
Cuts or emphasizes lowest speech frequencies.
4. 600 Hz:
Cuts or emphasizes mid-range speech frequencies.
5. 1200 Hz:
Cuts or emphasizes upper-range speech frequencies.
6. 2400 Hz:
Cuts or emphasizes syllabant sounds and adjacent channel "chatter".
7. Bypass:
Turns
Speech Intelligibility Enhancer
TM
function on and off for comparative
listening.
8. Input A/B:
Selects between two sources.
9. Speaker:
Disables speakers--used when monitoring with headphones.
10. Phones:
Accepts 1/4" stereo headphone plug, normally attenuated for phones (attenuation
deactivated internally).
11. Power:
Selects between unamplified and amplified signals.
Rear View:
+12VDC
Right
Speaker
Left
Speaker
Stereo
Speaker
Input
AB
+
123456
MFJ ENTERPRISES, INC
STARKVILLE, MS USA
1. Power:
Accepts 2.1-mm power plug to supply 12-15 Vdc to the unit.
2. Right Speaker:
Accepts 3.5mm mono phone plug for right-hand monitor speaker.
3. Left Speaker:
Accepts 3.5-mm mono phone plug for left-hand monitor speaker.
4. Stereo Speaker:
Accepts 3.5-mm stereo plug for computer-style speaker pairs.
5. Input A:
Accepts RCA plug from first radio (auxiliary audio or speaker line).
6. Input B:
Accept RCA plug from second radio (auxiliary audio or speaker line).
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