Since radios have an automatic mic level limiter in them, this means that although you drive the audio harder than needed, the internal circuitry keeps the audio level low enough to prevent over modulation, but when you are quiet, will allow some of the quieter audio to pass through with nearly the same audio levels. Some people over-drive the radio input with their amplified microphones to increase talk power. Still, amplified microphones are popular since are able to keep the mic a comfortable distance away from your mouth and still easily hit 100% or more. As electronics improved and became less expensive, it is difficult to find a radio that will NOT easily hit 100% right out of the box. People added amplified microphones to give the extra talk power they wanted in a lower cost radio. Originally, most price-point CB radios did not have enough microphone amplification to reach 100% modulation levels with normal voice. The following is an independant review of this base microphone, found during a search of the internet: Power amplified CB microphones have been around almost as long as CB.
#Jcd 201m base microphone manual manual
Meter - Dual Display VU (Volume Unit) Battery Indicator 1-1/2' H x 2' W Buttons: Output Select: Out A Out B Out-Off Compression Level: High Low Manual Manual Compression Control Knob: Minimum Maximum Mode: SSB FM Battery-Check Channel Control Switch: Up Down Key Controls: PTT Lock Output Voltage: Amplification - 0.3mv (Lapse) Variable Amplification: 0-70mv(Lapse) Output Resistance: 500 Ohm - 100 kOhm Batteries Required: 3 AAA. Output A 8 Pin Standard Microphone Plug Output B 8 Pin Standard Microphone Plug Front panel switch controlled. Amplification: High - 45dB Low - 35dB Manual Dual Microphone Connectors Output.
Optional Foot Switch Optional foot switch can be plugged into the socket on the rear of the microphone for foot operated PTT. It sends out constant and optimum level without distortion regardless of audio input level.Equipped with FM(AM)/SSB Audio Quality Selector Switch for optimum operation. High Quality Compressor Amplifier ( High - Low selectable ) built-in. Turn the power switch on ( by selecting 'FM' or 'SSB' position ), and the level meter indicates the battery condition with power voltage for a few seconds. JCD-201M Base Compressor CB Ham Radio Amplified Microphone 6 Pin.
0 kommentar(er)
