MFJ hamProAudio MFJ-654, Инструкция по эксплуатации

Страница: 18 / 28

J-654 hamProAudio
TM
Microphone Equalizer/Conditioner Instruction & Technical Manual
-17-
SYSTEM SETUP
CABLES
Simply connect your microphone to the appropriate input and use either a MFJ-
5398 for 8 pin Round or MFJ-5397MX for 8 pin Modular connector to the output
on the rear of the unit and attach to your radio.
Connect the audio from your headphone jack to the 3.5-mm jack on the MFJ-
654. If your radio output is mono then simply wire the tip and the ring of the
cable to provide audio to both sides of the headphones.
Connect a Foot Switch or Hand Switch to the PTT jack located on the rear of the
unit.
POWER
The MFJ-654 will operate with any well-filtered 10-14 VDC power supply capable
of at least 150 mA. The required power connector is a 2.1 -mm ID, 5.5 mm OD
coaxial power plug.
As this is a quality audio unit, use of an unregulated wall power supply
transformer is not recommended as the unloaded voltages can easily exceed 15
volts and the lack of filtration and regulation can introduce hum and other
components into your signal.
Wire (+) voltage to center and (-) to common.
HEADPHONES
Use stereo headphones rated at 8-40 Ohms impedance. Jacks for either ¼ inch
or 3.5 –mm headphones are included on the rear of the unit. Use of quality
phones will aid in the reproduction of the audio when setting up the unit.
RADIO AUDIO
If your radio provides left and right output for a main and a sub-receiver then use
a stereo 3.5 –mm to the termination that your radio uses.
If your radio provides mono output then either use a stereo 3.5 –mm cable and
connect the tip and ring and then attach the termination that your radio uses.