无线对讲机的有效通信距离,你了解吗? - 常见问题

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无线对讲机的有效通信距离,你了解吗?

来源:http://www.zzzhongtebao.com/  点击次数:    发布时间:2018-08-27
对讲机间隔到底有多远?手持式对讲机在无中继台协同作业下,按对讲机发射功率来看,正常有用的通讯间隔在1-6公里之间,不同发射功率、不同的通讯环境对无线对讲机通讯间隔影响较大。咱们这篇文章首要叙述不同环境下对讲机的有用通讯间隔……
How far is the interphone spacing? Hand-held intercom in no relay cooperative operation, according to the intercom transmission power point of view, the normal useful communication interval between 1-6 kilometers, different transmission power, different communication environment has a greater impact on the intercom communication interval. Our article first describes the useful communication intervals of interphones in different environments.
在以往的出售过程中,用户关怀的问题莫过于对讲机的通话间隔,常常会对出售人员抛出一系列有关通讯间隔的问题。对讲机远能喊多远?为什么同一款对讲机有的当地呼叫比较远有的当地又很近呢?有没有一款对讲机能喊10公里以的上?
In the past sale process, the user's most concerned problem is the intercom call interval, often to the seller throw a series of questions about the communication interval. How far can a walkie call the farthest? Why are there some local calls to the same walkie talkie far away? Is there a walkie talkie that can call 10 kilometers?
其实正规且具有必定规划的对讲机出产厂商,无论是其产品宣扬彩页,产品运用手册上,还是品牌官方网站上都不会标明某类型对讲机的通讯间隔。假如把对讲机通话间隔标出来更有利于产品的出售,但是负责任公司并不会这么做,因为没有哪家公司能预知用户的运用环境,要知道通讯环境对对讲机通讯间隔起着决定性的运用,所以无法判别对讲机的运用间隔。
In fact, the regular and planned manufacturers of walkie-talkies, whether their product promotion color pages, product brochures, or the official brand website will not indicate the type of walkie-talkies communication interval. If the intercom interval is marked out, it is more conducive to the sale of the product, but responsible companies will not do so, because no company can predict the user's use of the environment, to know that the communication environment plays a decisive role in the intercom communication interval, so it is impossible to distinguish the use of intercom interval.
 枣庄安保服务公司
影响对讲机通讯间隔除了运用环境这个外在要素以外,还有对讲机本身技术指标也很重要,如:对讲机发射功率、接纳灵敏度、天线是否为原配、天线是否有破损,这些都会对通讯间隔发生必定影响。当然用户运用是否正确也能在必定程度上影响对讲机的大通讯间隔。
In addition to the external factors of the operating environment, the technical specifications of the interphone itself are also very important. For example, the transmitting power of the interphone, the reception sensitivity, whether the antenna is original, whether the antenna is damaged or not, all of these will have a certain impact on the communication interval. Of course, the user's correct use can also affect the maximum communication interval of the interphone to a certain extent.
假如你在买对讲机时问出售人员关于通讯间隔的问题时,要是他答复你说他的对讲机能通少5公里,乃至可能到达8-10公里。请信任我,在没有到用户现场实践测试过的,就得出结论的,不论他经历多丰厚,都是哄人的,是不负责任的。
If you're buying a walkie-talkie and you ask the salesman about the communication interval, if he answers you that his walkie-talkie has at least 5 kilometers of traffic, and may even reach 8-10 kilometers. Trust me, it's irresponsible to conclude that no matter how much experience he's had, without actually testing it on the user's site.
常用的无线对讲机一般运用130-170MHz;403-470MHz两个频段,这两个频段也是国家法律答应个人或单位运用的频段规模。一般情况下,这两个波频都是直线传达的,海上通讯是地球上无线电对讲机比较抱负的通讯环境,一般不会有障碍物且搅扰很少,但实践上,在海上手持对讲机也只能通10-20海里左右,那是因为地球是圆的,相距太远了中心就会被海水挡住(所以把天线装高些,通话间隔也会越远)。
Commonly used wireless walkie-talkies generally use 130-170MHz; 403-470MHz two bands, these two bands are also the national law allows individuals or units to use the band size. Generally speaking, both frequencies are transmitted in a straight line. Maritime communication is an ambitious communication environment for radio intercom on the earth. Generally, there are no obstacles and little disturbance. But in practice, handheld intercom on the sea can only communicate about 10-20 nautical miles, because the earth is round and far away from the center. Blocked by seawater (so the antenna is higher and the distance between calls will be farther away).
通常在城市中运用时,障碍物是对信号传达间隔影响大的要素。功率到达5瓦的专业对讲机在城市中的实践通话间隔一般只在2~5公里的规模内。在有高地、较多建筑物或许比较密封的室内,通话间隔还会短些。不过当有系统基站支撑时,对讲机的通话规模可达十几公里乃至几十公里,(假如两台对讲机都在高处时,也能够到达十几公里)。
When used in cities, obstacles are the most important factors affecting signal transmission intervals. Professional walkie-talkies with a power of up to 5 watts usually have a practical call interval of only 2 to 5 kilometers in the city. In rooms with Highlands, more buildings or relatively sealed rooms, the interval between calls will be shorter. But when there is a system base station to support, the scale of intercom calls can reach more than ten kilometers or even dozens of kilometers, (if both intercom are high, also can reach more than ten kilometers).
市场上出售的0.5W对讲机,有些厂家标称的对讲机远通话间隔是3公里,实践上这个通话间隔仅仅是一个理论计算数据,它的根据是发射功率,也就是说0.5W的对讲机在没有障碍物、没有电磁搅扰情况下的大通话间隔。在实践运用中,因为运用者所在的环境各不相同,背景噪音有大有小,电磁搅扰有强有弱,因此实践通话间隔一般达不到3公里。许多用户在购买对讲机时往往误以为在城市运用,通话间隔能够到达3公里,这是不大可能的!任何厂家都不可能预知用户的运用环境,当然也就不可能给出实践通话间隔。
The 0.5W intercom sold on the market, some manufacturers nominal intercom is the farthest call interval is 3 km, in practice this call interval is only a theoretical calculation data, it is based on the transmission power, that is, 0.5W intercom in the absence of obstacles, no electromagnetic disturbance, the maximum call interval. In practice, because the user's environment is different, the background noise is big or small, the electromagnetic disturbance is strong or weak, so the practical call interval is generally less than 3 km. Many users in the purchase of walkie-talkies are often mistaken for use in the city, the call interval can reach 3 km, this is unlikely! It is impossible for any manufacturer to predict the user's operating environment, and of course, it is impossible to give practical call intervals.
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