Product Overview
The Hytera EHM18-A is a C-style earpiece with an in-line microphone, PTT and VOX switch for specified BD, PD and TC radios.
Specifications
| Manufacturer | Hytera |
|---|---|
| Model | EHM18-A |
| Weight | about 35 g |
| Color | black |
| PTT Key | available |
| VOX | available |
| Emergency Key | none |
| Microphone Sensitivity | -45±3 dB@1 kHz 3.0V 2.2 kilohm; 0 dB=1 V/Pa |
| Speaker Power | 20 mW (rated); 30 mW (max.) |
| Speaker Impedance | 32 Ω±15%@1 kHz |
| Operating Temperature | -20℃ to 60℃ |
| Storage Temperature | -40℃ to 85℃ |
| Listed digital radios | BD505LF; BD505; BD555; BD615; PD405; PD415; PD485; PD505LF; PD505; PD565 |
| Listed analogue radios | POWER446; TC-446S; TC-508; TC-510; TC-518; TC-580; TC-610; TC-620; TC-700 |
| Excluded radios | TC-610P; TC-700P |
Compatibility and Ordering
Confirm the exact radio suffix against the list. The manufacturer explicitly excludes TC-610P and TC-700P; their appearance or shared model prefix is not evidence of compatibility.
Acoustic Performance Documentation
For acoustic qualification, request a frequency-response curve and the measurement reference and test conditions. A single output-level value in dB does not specify a frequency-response bandwidth.
Request a Quote
Contact MARS SC with the exact EHM18-A configuration, host equipment and quantity required.
