J-654 hamProAudio
TM
Microphone Equalizer/Conditioner
Instruction & Technical Manual
-4-
INTRODUCTION & FEATURES
Audio Pass Through from your Radio:
No need to switch the headphones
from the MFJ-654 to the radio. At the push of a button you can instantly switch
from normal operation to a test mode that allows you to adjust the settings
without going on the air with the built in monitor amplifier.
By-pass Function:
Switch the MFJ-654 in or out and you still have the radios
audio in the headphones useful when you want to Rag Chew and don’t need the
Compression or Downward Expansion of the MFJ-654.
Multiple Outputs
: The MFJ-654 has multiple outputs for both receive/test audio
and Microphone audio. No need to have to hunt for an adapter to switch
between 3.5 -mm or 1/4inch stereo phone jacks. Microphone audio is fed out
through the RJ-45 connector through the 3.5 mm Auxiliary Output or through a
separate 3.5 mm jack that gives true balanced output if you need it.
Rugged Construction:
Attractive all-metal cabinet, conservative component
selection, space age SMD Circuitry and extensive RF filtering ensure solid
performance for years to come. Fully covered by MFJ’s “No Matter What” one
year limited warranty.
Before attempting to operate your MFJ-654, please read the manual thoroughly.
It contains important detail about setting up your unit to obtain the best
performance.
TYPICAL SPECIFICATIONS
Input source
……………………Dynamic or electret microphone low or high Z
Stereo or Monaural radio audio.
Sound card or Modem
Output
………………………….High or low Z. Adjustable signal level
Bandwidth
…………………….20 kHz
Total harmonic distortion
….1% maximum, <0.2% typical.
Содержание hamProAudio MFJ-654
Страница 25: ...J 654 hamProAudioTM Microphone Equalizer Conditioner Instruction Technical Manual 24 Schematic Equalizer...
Страница 26: ...J 654 hamProAudioTM Microphone Equalizer Conditioner Instruction Technical Manual 25...
Страница 28: ...MFJ 654 Manual Version 1A Printed In U S A 300 Industrial Park Road Starkville MS 39759...