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Last modified 2022-03-26

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Astatic 539

A picture of Astatic 539


Type:Noise cancelling ceramic hand microphone
Frequency response:100-3500 Hz (No reference)
Sensitivity:? dB (? Hz, ? cm)
Output level:-50 dB Re: 1 Volt/microbar
Output impedance / connector:Hi-Z (>1 Mohm) ohm / Open end (Four wire coiled cord)
Power supply:-
Current drain:-
Dimensions (W*H*D):60*86*33 mm (2.38*3.38*1.31")
Weight:227 g (8 oz)
Manufactured:USA, 196x-19xx (Discontinued)
Related documents:
Modifications and fixes:
Applicable radios:Many