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DM-402/EM-402 unidirectional replacement electret CB microphone with multiply pins aerial connector compatible with ham raido
Detailed specifications :
1,Unidirectional CB microphone2, repalcement electret CB microphone3, CB microphone with multify pins4, OEM acceptable
parameter
B Microphone microphones for CB mobile radios
| Sensitivity | -66+3dB at 1K Hz |
| Impedence | 500 ohm |
| Frequency response | 100-6000Hz |
| Connector | 4 Pin, 5Pin and 6Pin Aerial plug available |
| Mic type | Both Electret mic and Dynamic mic available |
Main Technical Features:
Condition Test: The sensitivity should be within ±3dB from the initial sensitivity of the unit. | ||
Durability of switch | Normally 100000 cycles operation. | |
Drop test | Free fall from 1 meter height to concrete floor for 5 times. | |
Cable strain relief | Normally supporting 5Kgs force at the end of mic for 1 sec. | |
Vibration test | Normally vibrating at 12Hz to 55Hz for 1 minute at full amplitude 2mm for 1.5 hours at three axes. | |
Temperature cycle test | Exposure at -10°C-- 55°C for 1 hour, 2cycles, frequency response, sensitivity shall be within specifications.(The measurement shall be done after 2 hours of condition at 25°C). | |
Humidity test | After exposure at 40°Cand 90-95% relative humidity for 48 hours, frequency response, sensitivity shall be within specifications(The measurement shall be done after 2 hours of condition at 25°C). | |
Operating temperature | -10°Cto 55°C | |
Temperature Cycle Test | From normal temperature to required temperature, which takes 20-40 minutes. temperature:+60°C±3°C last out 1 hours (normal temperature lay 3 hours) temperature:-25°C±3°C last out 1 hours(normal temperature lay 3 hours)
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Testing and assembly
pacakge : inside packed by white box , outside packed by carton . OEM service offered Also we could print your artwork and LOGO as your required .
About us :We are the professional CB radio products , CB micophone , CB speaker and two way battery manufacturer . integrate research development and marketing . looking forward to cooperating with you .
DM-402/EM-402 unidirectional replacement electret CB microphone with multiply pins aerial connector compatible with ham raido