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Heil Sound BM-17 Single-Sided Headset w/ Dynamic Element is lightweight and designed for emergency communications.
The BM-17-Dynamic headset uses the BM-D dynamic element designed specifically for communications use. This 500 ohm dynamic element will work on most amateur radio rigs requiring a Low-Z input impedance (usually between 150 ohms and 4k ohms). Radios requiring a high impedance input of 10k to 30k ohms will require the use of an XT-1 impedance matching transformer.
The BM-17-Dynamic has an operating frequency response of 120Hz - 10 kHz.
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”
The use of the AD-1 series mic adapters (not included ) allows simple interface with popular transceiver inputs. The adapter is 6-8” long and has a 1/8” female input jack for the headset microphone while the 1/4” female that exits the adapter is the PTT (push to talk) 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.
Headset Type:On ear, single
Microphone Element Type:Dynamic
Headphone Connector Type:Stereo 1/8 in. male plug
Microphone Connector Type:1/8 in. male mono
Headphone Adapter Included:Yes
Radio Connector Cable Included:No
Some state laws prohibit the use of headsets while operating a vehicle. Please check with your local regulations and restrictions prior to usage of this product while operating a motor vehicle.