Sender SD-990H (เครื่อง CB) » SPECIFICATION General Frequency Range 245.0000-245.9875 Channel No. 80 Channel 50 Group OF CTCSS Frequency General Synthesizer Mode Type FM (F3E) Channel Spacing 12.5 KHz. Working Temparature -20 C to + 55 C Working Voltage 7.4 V DC. Low Voltage Indicator The Battery is lower than 6V. Frequency Stability: +/- 5 ppm Case Red Dimension Weight Transmitter Output Power Hi : 5W. Lo : 1 W. Transmitting Frequency Error : +/- 500 Hz Transmitting Current Hi < 1.5 A / Lo < 0.8 A Max. Frequency Deviation: < 5% Modulation Sensitivity +/- 12.5 KHz MIC input 1 HK. Transmitting Distortion < 5% Tone Frequency Deviation 300 – 500 Hz. Spurious Radiation 63 dB Adjacent Channel power < -63 dBm Harmonious Wave: -63 dBm. Receiver Sensitivity <0.25 uV. at 12 dB / SINAD Squelch Sensitivity : <0.158 uV. Selectivity <-65 dBm. Spurious Response Rejection: 60 dB Intermodulation Modulation 65 dB Adjacent Channel Selectivity 63 dB. Audio Frequency Response: +1 dB to – 3 dB of + 6 dB. Octave 300 ~ 3000 Hz. Frequency Stability +/- 5 ppm Audio Output : > 500 mW. Distortion <5% at 8 Ohm Speaker palakorn 2013-02-19T11:37:02+00:00