Astatic 575M6 Microphone

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ASTATIC 575M6


Astatic Has Discontinued This Microphone

Astatic RD 104E Would Be A Good Replacement For This Model

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Astatic RD 104E

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Description
The ASTATIC 575M-6 “power” microphone offers the CB'er modern “teardrop” styling and features along with the sound and “talk-power” made famous by the ASTATIC D104 for over 60 years.
An output impedance compatible with the inputs of almost all commercial transceivers and externally adjustable high gain amplifier ensures desired modulation level. The 575M-6 has easily accessible slide controls for volume and tone adjustment so that the correct modulation level and tone quality can be set for each operators voice. The 575M-6 preamplifier is powered by a readily available, easily replaced, 9 volt battery. The 575M-6 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 Ceramic
Frequency Response: Adjustable (See Frequency Response Curve at left)
Maximum Output Level: -38 dB below 1 volt per microbar at 1 kHz into 1 megohm load
Output Adjustment: 40 dB minimum 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 (DX1) or 5 pin (DX2) DIN.
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: Attractive, durable high impact molded black ABS
Battery: Standard 9 Volt Battery (Not Included)
Battery Life: Approximately 6 months (based on normal usage)
Size: 100 mm (3 15/16") high x 75.4 mm (2 31/32") wide x 54.8 mm ( 2 5/32") deep
Weight: 227 grams (8 oz.)

ASTATIC Quality
All 575M-6 microphones are audio tested and inspected prior to shipment. Our absolute commitment to quality insures that ASTATIC microphones remain the Best Value in today’s competitive industry.

Battery Replacement
Remove the rear housing by removing the four screws. Carefully lift off the rear housing. Unsnap the battery from the battery connector and install a new battery. Carefully replace the rear housing and fasten with the four screws previously removed. Depress the switch lever fully while tightening the screws.
Volume and Tone Adjustments
At a speaking distance of approximately 2 inches (or the position you prefer) with the external volume control set at 0 and the tone control set in the center position, adjust the volume control for the correct modulation level. Sliding the volume control toward 9 increases the volume. The external tone control should then be adjusted for the most intelligible sound. Slide the tone control toward 0 for an increase in bass response and towards 9 for a decrease in bass response.
Connector-Cable Clamping
If the microphone plug you have selected for your hookup requirements does not have a cable clamp suitable for our small diameter high quality microphone cable, use tubing as supplied by ASTATIC. Simply slip tubing over cable prior to soldering of lead wires. Position it to ensure proper clamping of cable and tubing by the connector.