◆ Frequency / Channel Indicators 
 Frequency Range: 46MHz to 870MHz 
 Range of channels: standard channels 1 ~ 56 
 China added to the channel Z1 Z43 
 Frequency accuracy: ± 50ppm (25 ° C ± 5 ° C) 
 Resolution: 50KHz 
 Measurement bandwidth: 280KHz ± 50KHz 
 Frequency Step: 50KHz, 100KHz, 1MHz, 10MHz, 100MHz, 
 ◆ level measurement: 
 Measuring range: 30 ~ 120dBuV 
 Measurement accuracy: ± 1.5dB (25 ° C ± 5 ° C) 
 Resolution: 0.1dBuV 
 Detection method: the peak detector 
 Input Impedance: 75Ω (unbalanced TAC or F-type connector) 
 ◆ voltage measurement: 
 Input range: 0 ~ 100VAC 
 Measurement accuracy: ± 2V 
 Resolution: 1V 
 ◆ the carrier to noise level measurement range: 75 ~ 105dBuV 
 ◆ Other 
 Dimensions: 192mm × 140mm × 85mm 
 Total weight: less than 1.5Kg (with battery) 
 Audio output: built-in speaker 
 ◆ Power 
 Inside the battery: 7.2V/200mAh nickel-metal hydride 
 Charging time: 8 hours or more 

 Zhengzhou City Department of Electronic Instrument Co., Ltd. 
 Store address: Central District of the Central Plains mall on the fourth floor on the 24th 
 Headquarters Address: Zhengzhou City, West Street, 19th Floor, Sun and Moon Star City A3 (West Main Street and South Street intersection) 
 Tel :0371-66,227,105 / 66,959,363 (Retail) 
 Phone: 13017693918 
 Email: dufan58@163.COM 
 http://www.huike17.com 
 : 769 689 242 (Department of Surgical Instruments).