MFJ -299 Instructions

Deluxe Desktop Microphone / Ham Station Console
Thank you very much for your purchase of the MFJ-299 Deluxe Desktop Microphone / Ham Station Console.
To enjoy this unit to full satisfaction, please read the instructions carefully.

SPECIFICATIONS

Microphone
Compressor Level
S/N Ratio (Graphic Equalizer)
Distortion Factor
Graphic Equalizer
Output Voltage
Matching Output Impedance
Power Voltage
Current Consumption
Alarm Sound
Size
Weight

FEATURES

1. High Sensitivity Ceramic Microphone Element.
2. High Quality Compressor Amplifier. For constant transmission at an optimum level without distortion
regardless of audio input.
3. Equipped with Graphic Equalizer for Optimum Audio Output Quality. The 4 Element Graphic
Equalizer with center frequencies of 270, 540, 1000, and 2000 Hz can control the audio output quality.
It gives the best audio quality for FM and maximum efficiency for SSB and DX.
4. Triple input socket for most transceiver models.
5. Battery check circuit built in. Press the power switch and the level meter indicates the battery
condition with power voltages for a few seconds.

INSTALLATION

1. Install a fresh 9V battery (not included) in the battery compartment.
2. The MFJ-299 must be used with one of the following cables (sold separately):
•
MFJ-5397I - compatible with most ICOM transceivers that have an 8-Pin round connector.
•
MFJ-5397K - compatible with most Kenwood transceivers that have an 8-Pin round
connector.
•
MFJ-5399Y - compatible with most Yaesu transceivers that have an 8-Pin round connector.
•
MFJ-5397MX - compatible with most transceivers that have an 8-Pin modular connector.
3. Plug the cable into the Microphone Output Connector and set the Microphone Output Connector
Switch as follows:
•
Position A for all ICOM transceivers.
•
Position B for all Kenwood and Yaesu FT-100 transceivers.
•
Position C for all Yaesu transceivers (except FT-100).
CAUTION:
•
Please be sure to use MFJ conversion cables. The MFJ-5399 is compatible with most transceivers that
have an 8-Pin round connector. The MFJ-5399M is compatible with most transceivers that have an 8-
Pin modular connector.
•
Please be careful about high SWR of antenna and incomplete grounding. This may cause RF Feedback
and noise depending on coaxial cable layout.
•
Please be sure to turn the power switch off after use to ensure long battery life.
•
Do not subject the microphone in high temperatures or place in direct sunlight.
MFJ-299
High Sensitivity Ceramic Microphone Element
High: 45dB, Med: 30dB, Low:10 dB
80 dB
0.05% (at flat)
4 Elements (270, 540, 1000, & 2000 Hz)+12dB range
COMP: 0 – 30 mV (RMS)
500 ohms – 100K ohms
DC 6~9 V
(EQ off) Receive – 3.5 mA, Transmit – 4.5 mA
(EQ on) Receive – 10 mA, Transmit – 11 mA
Approximately 4.5 kHz Intermittent Tone
8.937(W) X 5.118 (D) X 12.598 (H) inches
2.2 Lbs.