TECSUN S-2000 FM radio
Introduction to S-2000 Function ● This unit can receive FM stereo, medium wave, long wave, international short-wave broadcast, short-wave single-sided band (SSB) communication signal, and civil aviation band signal, high sensitivity, good selectivity; practical functions, managing change. ● The frequency range reception frequency range is 76 ~ 108MHz, which can be set to China, Japan, Europe and the United States. The high-placed circuit has adopted a 5-tuning circuit, and the MCU controls track tuning, the selectivity is high, and the anti-interference ability is strong. The width / narrow bandwidth of the intermediate frequency circuit is suitable for FM long-range reception (FM DX). ● The modulation receiving circuit applies secondary frequency conversion, field effect tube balance mixing, high frequency gain (RF) control, variable medium bandwidth / narrowband, multi-stage automatic gain control (AGC) and other technologies. Improve the receiver. ● This machine uses secondary antenna input attenuation control to suppress strong signal interference from the antenna to prevent ultrasound distortion, improve listening effect. ● There is background noise suppression (SQUELCH) function, suppressing background noise during listening, which is practical when listening to FM broadcasts and surrounding aviation band signals. ● It is provided with an internal / antenna selection switch and a separate FM / amplitude jack. ● Set 455 kHz Intermediate Frequency Output (AM IF OUT) jack for radio enthusiasts for DIY external synchronous detectors, software radio (DSP) demodulators, DRM demodulation 455kHz / 12kHz inverters and other experiments. ● A practical multi-function digital adjustment knob can be used to set the time, adjust the frequency, select the store page, and addresses. ● Six settles: Manually search the station frequency, direct input frequency number, manually search the pre-store or directly enter the digital address number, automatically search the preview station frequency, automatically search for preview stored radio. ● Using this unit's ATS function, you can automatically search for storage, medium wave and long wave radio frequency. You can also use automatic browse radio features, quickly search, and store your favorite radio frequency. ● The unit has two storage radio stations for the "Bave" and "Cross-band", which can store up to 1000 radio frequency, 500 address bits can be stored in the band (FM, short waves, single-sided band, aviation) The band can be saved by 100, medium wave and long wave each stores each); another 500 address bits are used to span the wavelet storage radio frequency, and can also be flexibly divided into 10, 20, 25, 50 pages, press your preferences. Classified storage frequency. ● This machine uses a 4-inch high-quality speaker, with headphones to listen to the frequency, you can also adjust high, bass tones, improve sound quality, meet the needs of different programs. ● There is a left / right channel stereo line output jack, an advanced power amplifier or a recording device. ● Native clock display with 24-hour system, there is a two-timer, you can schedule / shut down, listen to the predetermined radio program, can also be timed, and can be set in 1 ~ 90 minutes The noifies are automatically stopped. ● You can start the smart sleep automatic shutdown function (1 to 120 minutes) at any time. ● This unit can be powered by four-segment dry battery or rechargeable battery, or the 220V AC power supply is used, or the external DC power supply is powered. S-2000 Main Performance Indicators: ● Frequency Range / Tuning Step: 1 FM (FM): 76-108MHz; Cable Credits: Standard: 87-108MHz (suitable for other countries outside Japan, Russia) Germany: 87.5-108MHz (Germany FTZ standard) Japan: 76-108MHz (including domestic campus broadcasting and 4 ~ 5 channel TV audience) 2 Zhongbo (MW): 522-1620kHz; (suitable for Asia, Africa and Europe) 520-1710 kHz; (Suitable for North America) 3 long wave (LW): 100-519kHz; 4 short wave (SW): 1711-29999KHz; 5 aviation band (air): 118-137MHz; ● Sensitivity: 1 FM (FM) (S / N = 30db Preferably, 3UV 2 medium wave (MW) (S / N = 26dB) is better than 0.35mV / m3 long wave (LW) (S / N = 26dB) is better than 3MV / m4 short wave (S / N = 26dB) excellent The 18UV 5 single-sided band (S / N = 10dB) is better than 1UV 6 aeronautical band (AIR) (S / N = 10dB) is better than 5UV ● Selective Amplitude (AM): Broadband ± 9kHz, better than 40dB; narrowband : Broadband ± 5kHz, better than 60dB; ● Signal ratio: 1 FM (FM): better than 60DB 2 Mid-wave: better than 45dB 3 short wave (SW): better than 50DB ● Center frequency: AM: 1. 中频 55.845MHz; 2 . 中 频 455kHz FM: 10.7MHz ● FM stereo separation: better than 30dB ● Mirror suppression: medium wave / long wave / short wave (MW / LW / SW): 55.845MHz: better than 90dB; 455kHz: better than 80DB aviation band (Air) (AIR) : Better than 90dB; FM (FM) is better than 60DB ● IF inhibition: Amplitude (AM): 55.845MHz is better than 60dB; 455kHz is better than 60dB; FM (FM) 10.7MHz is better than 100DB ● Automatic Gain Control (AGC): The AGC range is greater than 80dB, and the control point 12UV ● Manual high frequency gain control (RF Gain): 20dB ● Antenna attenuation: 0dB, -10dB, -20db; ● machine antenna: 1 pull rod antenna: total 11, long 1200mm Suitable Short wave, frequency modulation, aviation band 2 internal magnetic rod antenna ф0 * 120mm (HQ) is suitable for medium wave and long wave bands. ● External antenna: 1 Short Wave (SW): 50Ω (BNC), 500Ω 2 FM / Aviation Bode (FM / Air): 50Ω (BNC) ● Intermediate Frequency Output: 455kHz, when the input signal is greater than UV, the output signal is not less than 60mV ● Left / right, each channel: 300mV, 4.7KΩ ● Headphone jack specification: ф.5 mm, 8-32Ω, stereo socket. ● Speaker specification: 8Ω / 2W (foam edge) diameter ф100mm ● Current consumption: 1 quantist current: The standby current is less than 85ua, the Fm is less than 70mA, the MW is less than 80mA, SW is less than 90 mA, SSB is less than 95 mA. 2 Dynamic current: Rated current 350mA (output power 650MW, distortion less than 1%) 3 power supply is less than 500mA (output work) 1500MW) ● Power supply 4 sections large battery or nickel-hydrogen battery; ~ 220V / 50Hz AC; DC6V / 500mA direct current ● Real size: about 372 × high 183 × thick 153mm (including front handle) ● Weight: about 2.7kg (free of battery)
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