Features: · Frequency range: 0.15 ~~ 1050MHz · 4 digit digital display (center frequency, 0.1MHz resolution) · -100 ~ 13dBm amplitude range, 20KHz, 400KHz IF bandwidth and 4KHz video filter and output amplitude: 0 ~-50dBm (50Ω) Technical Specifications: Range: 0.15 ~ 1050MHz center frequency accuracy: ± 2% × spectral width of 5 × 10-3 × center frequency 100KHz tag accuracy: ± 0.1% bandwidth 100HKz frequency display resolution: 100KHz (4 digit LED) Sweep width: 100KHz / cell ~ 100MHz / cell 125 block and 0Hz / cell (0 scan); accuracy: ± 10% Frequency stability: better than 150KHz / hour IF bandwidth (-3dB): 20KHz (± 50% ); 400KHz (0, -40%); video filter (pass); 4KHz scan rate: 43Hz amplitude range: -100 ~ 13dBm screen display range: 80dB (10dB / cell) Reference level:-27dB at 500MHz at an average Noise level:-90dBm (20KHz bandwidth, typical values ??dBm) Distortion: 2 3rd harmonic <-55dBc order intermodulation:-70dBc Sensitivity: better than-90dBm logarithmic scale fidelity: ± 2dB (without attenuator), 500MHz input impedance: 50Ω socket: N (F) connector attenuator: 0 to 40dB (4 × 10dB stepper) input attenuator accuracy: ± maximum input level 1dB/10dB: 10dBm, ± 25VDC (attenuation is 0dB), 20dBm (40dB attenuator) general configuration power: 200VAC/110 VAC ± 10%, 50Hz to 60Hz trajectory calibration adjustment (TR): panel power consumption: 20W ± 20% Protection: Safety 1 (IEC1010- 1) Size: 285 (W) x 125 (H) x 380 (L) mm Weight: about 7 kg Zhengzhou Hanson Radio and Television Communication Equipment Co., Ltd. Tel :0371 -53769167 / 55676313 Sales: Zhujing 18,939,564,786 QQ: 1,006,519,081 Address: Zijin Road, Zhengzhou City, with 300 meters west of East Avenue interchange (No. 238 West Street, the hospital attached to No. 63)