Is the longer the walkie talkie antenna, the better?

One, no. The length of the antenna should be a multiple of half of the frequency, but the length is not suitable and can be transmitted, but the matching degree is not good, and the quality is reduced. The problem of communication distance is actually the problem of antenna height.

Second, there is an empirical formula: the height of the antenna from the ground is the number of kilometers transmitted.

For example, a handset, the height of a person is calculated in meters, and the transmission distance is kilometers, removing the factor of the building, so the general handset transmission is calculated as 1 km.

3. Walkie-talkie.

A brief introduction:

The English name of the walkie-talkie is two way radio, it is a two-way mobile communication tool, without any network support, you can talk, no phone charges are generated, suitable for relatively fixed and frequent call occasions. There are currently three categories of walkie-talkies: analog walkie-talkies, digital walkie-talkies, and IP walkie-talkies.

It's better to accept long, it doesn't have to be long, as long as you're not very far away, you can change to a short one, that's fine.

In fact, the long one is not necessarily uglier than the short one, it depends on the model.

No, the antenna is longer and the signal is better received.

No, it depends on the quality, if the short one is worse than the long one, then of course choose the long one.

When the antenna length of the public civil walkie-talkie is between 36 and 37 cm or between 18 and 19 cm, the signal is the best.

1.Only in the most suitable range can the antenna function shed nucleus be exerted to the maximum. And the range of the length of this antenna is related to the frequency and wavelength of the walkie-talkie (radio station).

Take the most common civilian public walkie-talkie as an example. China stipulates that the working frequency of civil walkie-talkies is between 409 410MHz. And since the speed of radio propagation is about equal to the speed of light, the wavelength is divided by the speed of light by the operating frequency (don't forget that m means "one million").

That is, the wavelength of the civilian public walkie-talkie is around the meter.

2.The length of the antenna can be determined according to the operating frequency (i.e. wavelength) of the radio station or walkie-talkie. Through theoretical and practical skill, it has been proved that the length of the celestial line is equal to one and a half of the length.

At multiples of one or a quarter of the wavelength length, the transmission and reception effects are best. That is to say, the signal is best when the antenna length of the public civil walkie-talkie is between 36 and 37 cm or between 18 and 19 cm. For the civilian public walkie-talkie (that is, the common walkie-talkie in property, security and other occupations), as long as the antenna length is guaranteed to be not less than 18 cm, it can ensure a good communication effect.

The frequency of the antenna of the walkie-talkie does not affect the effect. In wireless communication equipment, there are many brands and types of walkie-talkies, different brands and types of factory dust home production and their frequency points are also different, in order to make the newly purchased walkie-talkie and the old walkie-talkie can talk to each other, must go through frequency modulation to talk to each other, in the same frequency range, all types and travel closed brand walkie-talkies can basically be adjusted to talk to each other, manual frequency modulation is generally for the number key walkie-talkie, can be directly input numbers to write the frequency you need.

How the radio antenna frequency worksThe frequency of the walkie-talkie is generally a low frequency relative to the mobile phone, more concentrated in tens of megabytes to hundreds of megabits, generally point-to-point communication, so that the base station for dismantling and cracking is less, and the low working frequency band can overcome the impact of terrain and buildings on the quality of communication, that is to say, in the point-to-point pass-through mode, the lower the frequency, the farther it propagates, and the wavelength of the corresponding frequency will be longer due to the lower frequency.

The frequency of the antenna of the walkie-talkie does not affect the effect. In wireless communication equipment, there are many brands and types of walkie-talkies, different manufacturers produce brands and types of their frequencies are also different, in order to make the newly purchased walkie-talkie and the old walkie-talkie can talk to each other, must go through frequency modulation to talk to each other, in the same frequency range, all types and brands of walkie-talkies can basically be adjusted to talk to each other, manual frequency modulation is generally for splitting the number key walkie-talkie, can be directly input numbers to write the frequency you need.

The working principle of the dust frequency of the walkie-talkie antennaThe frequency of the walkie-talkie is generally a low frequency relative to the mobile phone, more concentrated in tens of megabytes to hundreds of megabits, generally point-to-point communication, the use of base stations is less, the low working frequency band can overcome the impact of terrain and buildings on the quality of communication travel, that is to say, point-to-point pass-through mode, the lower the frequency, the farther the propagation, due to the lower frequency, the wavelength of the corresponding frequency will be longer.

Summary. Dear: I'm glad to answer for you, isn't the antenna of the walkie-talkie original and easy to use? The reception effect of the antenna is one inch long and one inch strong, if you only want to receive a good effect, then use a pull rod, the longer the receiving effect, the better.

However, if you want to transmit the signal of the walkie-talkie as much as possible, you must have a resonant antenna, and the original antenna must be specially designed to match the corresponding frequency of the machine. However, due to the inherently low dimensional accuracy of the tie rod antenna, strict resonance cannot be guaranteed, so the emission effect is not good.

Dear: I'm glad to answer for you, isn't the antenna of the walkie-talkie original and easy to use? The reception effect of the antenna is one inch long and one inch strong, if you only want to receive a good effect, then use a pull rod, the longer the receiving effect, the better. However, if you want to answer the signal transmitter of the walkie-talkie as much as possible, you must have a resonant antenna, and the original antenna must be specially designed to match the corresponding frequency of the machine.

However, due to the innate size of the tie rod antenna, the spirit and intelligence are not high, so it cannot be blindly grasped to strictly resonate, so the transmission effect is not good.

Pro-tie rod: good reception, poor transmission. Original:

Receive the general pin wheel touch, launch well. So if you use the rod antenna compared with the original, it will be better to receive someone else's signal, but others receive your signal is poorer about the frequency of the walkie-talkie, the state stipulates that individuals must apply for the frequency used by Tongwang, can not be adjusted casually, otherwise it is illegal but in fact, you can lose a frequency at will, as long as you do not interfere with others, no one will trouble you.

The walkie-talkie does not need any network support, you can talk, there is no phone charge, suitable for relatively fixed and frequent call occasions, by the shell submersion, the main acer machine, battery, belt clip, seat charger, antenna composition. There are three categories of walkie-talkies: analog walkie-talkies, digital walkie-talkies, and IP walkie-talkies.

1 Use only original or approved antennas. Unapproved antennas, antennas that have been modified or have added accessories may damage the walkie-talkie or violate the regulations of the Radio Administration of the Ministry of Information Industry.

2 When in use, do not use your hands to reach the antenna.

3. The antenna of the walkie-talkie cannot be unscrewed, otherwise it is easy to burn out the power tube when transmitting.

4 Do not use a damaged antenna. If the damaged antenna comes into contact with ** during transmission, it may cause minor burns.

The operating frequency band of the walkie-talkie is usually very low, ranging from tens of MHz to hundreds of MHz, precisely because of the low frequency, so the wavelength corresponding to the frequency of the walkie-talkie will be relatively long, the wavelength is equal to the speed of light divided by the frequency. If the antenna can transmit the walkie-talkie signal as high energy as possible, it needs to be planned'Wavelength 1 2'If the frequency is ten times lower, the corresponding wavelength will be ten times higher, and the antenna scale will be larger.

Mobile phones have base stations that can transmit signals, and the coverage is also wide. The power of the walkie-talkie is small, and it can only transmit and receive signals by itself, and if there is no antenna, the transmission distance will be very close. It's not practical, you can remove the antenna of the walkie-talkie and try it, and then compare it with when you didn't go!

Usually the physical length of the walkie-talkie longer antenna gain is higher than the short antenna of the same technology, the antenna of the handheld walkie-talkie in addition to considering its own gain often has to consider the overall portability and appearance coordination, for some dual-band multi-band walkie-talkie antenna design to take into account the additional consideration of each frequency band, so often only some gain can be sacrificed.

For amateur radio enthusiasts, to maximize the potential of the radio, you can make a fuss on the antenna. Most of the original antennas that are randomly matched have a general effect, and they are the products of balancing a variety of factors, so the performance can only be said to be decent, including the random antennas of some imported walkie-talkies. So HAM can switch to a third-party antenna according to different needs.

For users who prioritize ultra-portability, a short stick antenna can be chosen, although the gain is not very good, but it improves the overall portability of the radio. In principle, considering the efficiency of the walkie-talkie, it is better to choose a longer antenna as much as possible under the premise that the antenna length is acceptable.

For users who prioritize transmission performance, they can choose a long antenna, which greatly improves the transmission and reception efficiency of the walkie-talkie, although it will affect the portability and appearance ratio of the walkie-talkie. The use of high-efficiency antennas can sometimes achieve a communication effect equivalent to doubling the output power of a walkie-talkie.

It needs to be used with the machine, and it cannot be used without matching.

No matter how good the product is, it's the same.

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The walkie-talkie can be used, and the specific use depends on whether the interface is the same.