Sender SD-980H (วิทยุสมัครเล่น) » SPECIFICATION General Frequency Range 144.0000 – 146.0000 MHz. Channel No. 199 Channel / 50 Group OF CTCSS Frequency General Synthesizer (PLL) Mode Type FM (F3E) Channel Spacing 25 KHz. / 12.5 KHz. Working Temparature -20 C to + 55 C Working Voltage 7.4 V DC. Low Voltage Indicator The Battery is lower than 6 V. Frequency Stability: +/-5 ppm. Case Black Dimension Weight Transmitter Output Power Hi : 5W Lo: 1 W. Transmitting Frequency Error : +/- 500 Hz Transmitting Current Hi < 1.5A / Lo < 0.8 A Max. Frequency Deviation: +/- 5.0 KHz. Modulation Sensitivity +/- 5.0 KHz. Mic Input 1 Hk. Transmitting Distortion -63 dBm Tone Frequency Deviation 300-500 Hz. Spurious Radiation 63 dB. Adjacent Channel power < – 63dBm. Harmonious Wave: -63 dBm. Receiver Sensitivity < 0.25 u V 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 2013-02-19T11:38:22+00:00