The HM-12 microphone is designed specifically for amateur radio communications. The high output full range ‘Genesis’ dynamic element is designed to work with just about every amateur radio low impedance transmitter.

The element is mounted in a unique internal shock mount and exhibits nearly –35 dB of rear rejection, which reduces background and ambient noise from the transmitted signal.

TThe HM–12 exhibits a very natural audio response and is designed to have the traditional Heil +4 dB peak centered at 2 kHz. It has excellent voice articulation balanced with clean, clear low-end response producing a high-quality AM, FM or SSB signal.

The HM-12 features a ‘soft touch’ PTT switch wired to pins 3 and 4 for transmitter control with the microphone signal fed to pins 1 and 2 of the 4-pin XLR.

The HM-12 microphone has an internal foam windscreen and includes a 5/8”-27 microphone clip that is designed for the booms and desk stands.

Specification

• Output Connection: 4-pin XLR
• Frequency Response: 80 Hz – 14 kHz @ -55 dB
• Diaphragm: Copper wound, mylar
• Impedance: 1000 ohm
• Polar Pattern: Cardioid
• Generating Element: dynamic, moving coil
• Net Weight: 8.8 oz