The BM-17-DYN is a lightweight dual-side headset designed for Amateur Radio use.

The speakers used in the BM-17 are very sensitive and don’t require much AF gain from the transceiver. The frequency response is 200 Hz – 5 kHz with very low distortion. The ear pads are replaceable acoustic foam.

The microphone audio for the BM-17 series terminates into a 1/8” mono plug while the headphone terminates into a 1/8“ stereo plug (1/8” to 1/4” adapter included).

Note: To use dynamic mic elements on vintage radios (requiring a high impedance input of 10k to 30k ohms) will require the use of an XT-1 impedance matching transformer.

The adapter cable has a 1/8” female input jack for the headset microphone while the 1/4” female that exits the adapter is the PTT line for the Heil foot switch or hand switch. The 1/8” or 1/4” stereo plug goes into the headphone jack on the transceiver front panel.

Features

• Generating Element: Dynamic
• Frequency Response: 120Hz – 10kHz
• Polar Pattern: Cardioid
• Impedance: 500 ohms
• Output Level: -60dB at 1kHz
• Weight: 5.8oz
• Required Adapter: AD-1 series