Power Microphone.

The D104-M6 series microphones are quality performance field effect amplified �power� microphones for amateur, citizen band, mobile, aircraft, marine applications.

An output impedance compatible with the inputs of almost all commercial transceivers and externally adjustable high gain amplifier ensures desired modulation level. The D104-M6 has an easily accessible control for volume so that the correct modulation level can be set for each operators voice. The D104-M6 preamplifier is powered by a readily available, easily replaced, 9 volt battery. The D104-M6 has a six wire coil cord which allows for relay, electronic or virtually any type hookup with almost any transceiver. The audio line is open during receive.

Specifications:
Type: Transistorized Amplified Ceramic
Output Level: -44 dB below 1 volt per microbar at 1 kHz into 1 megohm load
Output Adjustment: Approximately 40 dB range
Impedance: 5000 ohms max., recommended load of 100 ohms and up; performs well over entire impedance range up to open circuit
Connector: Available stripped and tinned or configured with 4 pin connector (see D104M6B4B)
Cable: Five conductor (one conductor shielded) coiled cord that extends to 2.3 m (7 1/2 ft.). Durable strain relief bushing protects against cable breakage at microphone housing.
Housing: Durable high impact molded black ABS
Battery: Standard 9 Volt Battery (Not Included)
Weight: 220 grams (7 3/4 oz.)