主要技术指标 一.电平测量： 1.测量频率范围：46mhz～870mhz 2.分辨率带宽：280khz ±50khz 3.频率分辨率：50khz 4.测量范围：30～120dbuv 5.测量精度：±1.5dbuv (常温)±2.5dbuv (-10℃～+45℃) 6.输入阻抗：75ω（不平衡f型接头） 7.检波方式：峰值检波 8.自动扫描测量:（本版本无自动扫描功能） 9.扫描频道：多每组100个频道（共14组） 10.扫描速度：30个频道/分 11.记忆单元数量：14组 12.干线电压测量：0-12v 13.测量范围：0～100v交流 14.测量精度：±2.5v 15.分辨率：0.1 16.外形尺寸：215mm×95mm×48mm 17.整机重量：1.2千克 18.工作温度：-10℃～45℃ 19.显示器：进口点阵液晶显示器 电源 20.直流供给：dc7.2/1.2ah 镍电池（可选锂电池） 21.交流供给：ac220v/50hz±10% 22.电池工作时间：连续工作时间大于3小时 23.电流充电时间：12-14小时 24.整机重量：1.4kg 25.工作温度：-10℃～45℃ 26.显示器：双频道大字符htn液晶显示器 二.电源 直流供给：7.2/1.5ah 镍电池（可选锂电池） 交流供给：ac220v/50hz±10% 电池工作时间：连续工作时间大于3.5小时 电流充电时间：12-14小时 the ht828 b series signal gives or gets an electric shock even form(television field strong instrument) main technique index sign give or get an electric shock even diagraph: ◆measure frequency scope:46 mhzs~870 mhzs *5 mhzs~870 mhzs(5 mhz the enclosure is purchase piece) ◆resolution bandwidth:280 khzs ±50 khzs ◆frequency resolution:50khz ◆measure scope:30~120 dbuvs ◆measure accuracy:±1.5 dbuvs(normal temperature) ±2.5 dbuvs(-10 ℃ ~+45 ℃ ) ◆input resistance:75 ωs(the unbalance f type deals with contact) ◆check wave method:the feng is worth check wave automatically scan diagraph:(this edition has no to automatically scan function) ◆scan channel:at most each 100 channels(total 14 sets) ◆scan speed:30 channels|divide ◆remember an unit amount:14 set trunk line electric voltage diagraph: ◆measure scope:the 0~100 vs communicates ◆measure accuracy:±2.5 vs ◆resolution:0.1v other shape size:the ht8385 series signal gives or gets an electric shock even form(field strong instrument) main technique index sign give or get an electric shock even diagraph: ◆measure frequency scope:46 mhzs~870 mhzs(ht838) 5 mhzs~870 mhzs(ht8385) resolution bandwidth:280 khzs ±50 khzs ◆measure channel scope: standard channel 1 ch in china~56 chs(show a 01 chs~56 chs) china increases and repairs channel z 01~ z43s(show z01 ch~z43 ch) ◆measure scope:30 dbuvs~120 dbuvs(200~870 mhzs) 40 dbuvs~120 dbuvs(5~200 mhzs) ◆measure accuracy:±1.5 dbuvs(20 ℃ ±10 ℃ ) ±2.5 dbuvs(-10 ℃ ~+45 ℃ ) ◆input resistance:75 ωs(the unbalance, bnc type or f type deal with contact) ◆check wave method:the feng is worth check wave automatically scan diagraph: ◆scan channel:most 125 channels ◆scan scope:all channels for picking out inside the 46~870 mhz scope ◆scan speed:30 channels|divide ◆remember an unit amount:picture and companion sound that at most can remember 125 channels give or get an electric shock an even value. electric voltage diagraph: ◆measure scope:the 0~100 vs communicates ◆measure accuracy:±2.5 vs ◆resolution:0.1v carry a zao ratio diagraph: ◆measure signal scope:80 dbuvs~105 dbuvs other shape size:the 215 mm × 95 mm × 48 mms the whole machine weight:1,200 gram work temperature:-10 ℃ ~45 ℃ display:importing point liquid crystal display the power the direct current supplies:the dc 7.2|1.2 ah nie hydrogen battery(can choose a lithium battery) communicate to supply:ac220 v|50 hzs ±10% battery working time:the continuous working time is big in 3 hours the electric current refreshes time:12-14 hour the whole machine weight:1.4kg work temperature:-10 ℃ ~45 ℃ display:dual-band way big character list htn liquid crystal display the power the direct current supplies:7.2|1.5 ah nie hydrogen battery(can choose a lithium battery) communicate to supply:ac220 v|50 hzs ±10% battery working time:the continuous working time is big in 3.5 hours the electric current refreshes time:12-14 hour 请你联系：广东省深圳市宝安40区翻身路宝安电子城1楼1013-1014号房 电话：0755-27896100 29985100 13480818000 传真：0755-29985100 pc:518102 邮箱：sztianxin工作:669813593 联系人:李天新 加工定制 否 类型 电视场强仪 品牌 hait 型号 ht828b 测量范围 870mhz双通道（t） 电源电压 dc7.2v（v） 外形尺寸 215mm*95mm*48mm（mm） 适用范围 有线电视信号检测及广播信号测量和46mhz-870mhz的无线电信号检测.