Walkie talkie car antenna ????

It is impossible for two portable 5-watt outdoor antennas to transmit high power? Add 50 long wires outdoors, and the consumption of antenna current and transmitting power, which was originally 5 watts, but now it is not even 1 watt? If you want to go far, sell a 50-watt on-board machine to make an indoor launch pad, which can reach about 40 50 kilometers, and it depends on the weather, the weather is not good, 20 30 kilometers is guaranteed to have fishing, if there is a shortwave machine, it is far away, and it is good to communicate with foreign countries.

I installed a Yaesu FT-897D with shortwave 100 watts of power, 35 meters longer best cable, and columnar antenna, installed on the roof of the water tank, the transmission voltage is 75V, shortwave calls are mostly crews, there are hundreds of highways away, urban U-band transmission 50 watts There are 70 80 kilometers HF segment 75 watts of transmission weather is good and there are 100 kilometers, I equip this set to buy a total of about 9500 yuan, I am very satisfied with the installation for almost 1 year, and I also make a few walkie-talkie friends, I and I can also do bad things with my hand Taiwan Union, The distance between the hand and the table is several times longer.

Play as little as possible. Mobile phones are only a few tenths of a watt, which is harmful to people. You play 5 watts, and you have to add antennas, which is not good for the people around you.

Theoretically, 5 watts plus antenna, within 10 km of the problem. However, urban buildings may have blind spots due to signal absorption, blocking, reflection, etc. The launch distance on the 4th floor will be greater than that on the 2nd floor.

Ten kilometers or so of the city?

How far can you shout between two machines in normal times?

If there are a lot of buildings, it is estimated that 90% of them can't shout. Ten kilometers is difficult, buy a second-hand car

In the city, your hand at this height, basically can not meet your requirements, it is recommended to install FRP antenna to the roof of the building, pay attention to lightning protection, in addition, I don't know if there is a call sign, that is, the operation certificate; Also, don't you have a relay that? If so, by joining the Radio Association, the distance of communication can be increased, and you can also get to know more HAM;

There is no difference, it's the same thing. The car platform (car radio) is a kind of wireless walkie-talkie that can be installed on vehicles, ships, airplanes and other vehicles directly powered by the power supply on the vehicle, and uses the antenna of the vehicle and the aircraft.

It is mainly used for transportation, production scheduling, security command and other businesses. Its volume is large, and the power is not less than 10W, generally 25W. The maximum output is 56W for VHF and 50W for UHF.

The power supply of the vehicle-mounted station is, the communication distance can reach more than 20 kilometers, and in the wireless communication network, the communication distance through the relay station is significantly increased, up to tens of kilometers.

More importantly, the use of the platform is not restricted, even if it is to the barren mountains and mountains where there is no one in the mountains, the mobile phone has no signal at all, and the vehicles loaded with the platform can still keep in touch with each other, and the power of the platform is larger, in the place where the space is not blocked, the two cars can still be contacted dozens of kilometers apart.

The car walkie-talkie is a communication tool installed in the car, the car walkie-talkie has a selective call function, as long as you dial the other party's ID number, you can talk alone, the car walkie-talkie transmits more than 25W, there is no radiation in the call, and it will not cause harm to the human body.

Installation conditions. Although the use of the car platform itself is relatively simple and convenient, it is not easy to purchase and install, because the use of the vehicle platform needs to occupy wireless frequency resources, improper use will interfere with normal wireless communication.

According to the provisions of the Criminal Law of our country, setting up or using radio stations without authorization, or occupying frequencies without authorization, interfering with the normal operation of radio communications, constitutes the crime of "disrupting the order of radio communication management", and if the consequences are serious, he shall be sentenced to fixed-term imprisonment of not more than three years, short-term detention or controlled release, and/or a fine.

A walkie-talkie is a tool installed in a car for communication. The car walkie-talkie has a call function, as long as you dial the other party's ID number, two people can talk alone. The transmitting power of the car walkie-talkie is above 25W, and there is no radiation for the call, which will not cause harm to the human body.

Installation conditions. Although the use of the wagon itself is relatively simple and convenient, it is not just a matter of buying one and installing it and using it. Because the use of the car needs to occupy wireless frequency resources, improper use will interfere with normal wireless communication.

The use of the platform must strictly comply with the relevant laws and regulations of the country. It is an offence to use radio transmitting equipment without approval. In accordance with the provisions of China's "Criminal Law", setting up or using radio stations without authorization, or occupying frequencies without authorization, and interfering with the normal operation of radio communications, constitutes the crime of "disrupting the order of radio communications management", and the consequences are serious, a sentence of up to 3 years imprisonment, short-term detention or controlled release, and/or a fine.

2. When wireless communication equipment is not equipped with antennas, it is forbidden to transmit;

3. The handheld radio station cannot be transmitted when charging, and the power switch should be turned off and recharged;

4. When you don't receive a call signal, don't ask and scream, and don't contact horizontally;

5. When the signal is not clear, the holder can change his position, move forward, backward, left and right, and find the best communication position; The on-board radio station in motion can use the method of slowing down the vehicle or stopping the driving to enhance the sensitivity and improve the call effect;

6. It is strictly forbidden to use the hand-held radio station within one meter from the high-power radio station to prevent the horn from being burned out; When using a handheld radio, stay away from the computer to avoid interference;

7. The voltage range of use, the handheld station is DC, the fixed station and the vehicle station are DC 12V, when using the external power supply, the voltage outside the voltage range must not be used, otherwise the radio station will be damaged;

8. The charger of the handheld radio station cannot be used for charging other batteries, and the radio station cannot use ordinary batteries to prevent "electric water" from entering the radio station and rotting the radio station, and the battery of the handheld radio station shall not be diverted for other purposes;

9. Pay attention to the position of the radio microphone to avoid the microphone being in a constant state, 9. Pay attention to the position of the radio microphone to avoid the microphone being in a regular state, interfering with communication work and causing the radio station to burn out.

The on-board station is installed on the car, and is powered by the on-board power supply and uses the on-board antenna, which can be installed on the car and indoors; It is mainly used for transportation, production scheduling, security command and other businesses.

The power of the vehicle station is not less than 10W, generally 25W. The maximum output is 56W for VHF and 50W for UHF. There are also individual vehicle stations with a power of 75W in a certain frequency band.

The power supply of the car radio is that because the transmission power of the car walkie-talkie is larger, the call distance is much farther than that of the conventional handheld walkie-talkie. The communication distance can reach more than 20 kilometers, and in the wireless communication network, the communication distance through the relay station is significantly increased, up to tens of kilometers.

The same as the use of the handset, there is a hand microphone call, there is a horn on the car platform, and the antenna needs to be connected

The car walkie-talkie antenna cannot be taken down when it is not in use. When in use, do not use your hands to hold the antenna, let alone shake the walkie-talkie around with the antenna. The walkie-talkie antenna cannot be unscrewed at will, otherwise it is easy to burn out the power tube (power amplifier) when transmitting.

Precautions for use: Do not use imitation antennas, because the original vehicle station antenna can ensure that the antenna itself has the following VSWR. And ensure impedance, reactance matching.

In addition to the technical indicators can be guaranteed, stable quality is crucial, once the unstable quality of the antenna has poor contact may lead to burn-in, then the gain outweighs the loss.

Of course, when using the vehicle-mounted station, do not deviate from the radio transmission module and transmit at a frequency other than the center frequency of the antenna, because the more you deviate, the greater the standing wave. You can't use a 400 megabyte antenna to transmit above 2 meters, and vice versa.

Vehicle antenna before use to use the standing wave table, antenna analyzer to check the parameters of the antenna, to ensure that the parameters are normal before use, most of the imitation antennas on the market are difficult to ensure that there is a good resonance point, it is recommended to equip yourself with a standing wave table, at any time to detect the standing wave and power.

The difference between a car radio and a walkie-talkie is the use of a hitching pin scenario and the communication distance.

Car radios and walkie-talkies are both wireless communication devices, but their main differences are in the use of field branches and communication distance.

Vehicle radios are usually used for vehicle communication, mainly for short-distance communication in cities, and the general communication distance is within several kilometers. The car radio can also use the car radio antenna to enhance signal reception and transmission, and improve the communication quality.

The walkie-talkie is a handheld wireless communication device, which is mainly used for short-distance interpersonal communication, such as construction sites, shopping malls, exhibitions, hotels and other places. The communication distance is short, generally between a few hundred meters and thousands of meters, and the communication quality is also affected by factors such as environment and terrain.

In addition, the frequency bands and frequencies of car radios and walkie-talkies are also different. Car radios usually use the 400-470MHz frequency band, while walkie-talkies use more frequency bands and frequencies, such as 400-470MHz, 136-174MHz, 480-520MHz, etc.

Features of the walkie-talkie:

1. Walkie-talkies are not limited by the network, and in places not covered by the network, walkie-talkies allow users to communicate easily.

2. The walkie-talkie provides one-to-one, one-to-many call mode, one press to say, simple operation, and more free communication, especially in the case of emergency dispatch and collective collaborative work, these characteristics are very important.

3. Low call cost. <>

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.

If there is a suitable adapter, the frequency is matched, and the vehicle antenna can be used, but the vehicle antenna is large in size, inconvenient to carry, and it is too troublesome to use it portably. Communication doesn't improve much when used handheld. However, if it is on-board or indoor, it makes sense for the on-board antenna to be placed outside the vehicle and outdoors with the suction cup feeder.

You can add, buy an antenna holder with a suction cup sticky disk, introduce the lead into the car and connect it to the hand pedestal, you can buy it online ** or go to the electronic equipment store to buy, but the connector must match!

Yes, but there are a few things to note:

1.The antennas of the vehicle station are all UHF male connectors, and an adapter is required according to the antenna connector of the machine you are using.

2.For outdoor use, an adapter can be attached to connect the antenna directly.

3.Use suction cups or clippers at home (indoor) and hold them on the balcony (outdoor) in a relatively high and unobstructed place (the feeder is too long, the effect will be affected).

4.Suction cups are placed on the roof of the car and the clamps are clamped in the trunk (depending on the model).

Be careful and unscrupulous now, especially the antenna installed on the car is very conspicuous.