2 pieces two way radio walkie-talkie or frequency gps walkie talkie for industrial professional walky talky 15km long distance

HSL-A5 / A6 hand walkie-talkie is a rare style, 5W power, clear sound, flashlight, remote section civilian walkie-talkie

With a set of practical and quality. With its unique design and quality to win the reputation of many consumers, stand out in a highly competitive market

A lot of very careful and discerning users have to buy a tiger lion and dragon HSL-A5 / A6 handheld power radios

On the walkie talkie communication distance explanation:

The use of the environment decided to use the distance, there is no &quot in thewireless communications professional, " distance; the technology parameter,because the radio is on the propagation of electromagnetic wave signal, factors that can influence the wireless signal propagation distance is very large, the internal factors including a transmission power, receiver sensitivity, the preparation of the antenna gain and the altitude, external the influencing factors included the use of the environment, the air radio interference and so on. Although the walkie talkiecommunication distance is very difficult to Qing Dynasty, however we are still veryconcerned about this issue, and good shopping is the radio communication products,professional agents, integrated years of customer feedback and testing experience,draw a general walkie talkie effective range, for your reference:

1, handheld walkie talkie

7 WATT transmitter power: the urban 2-4 km, 4-7 km open;

5 Watt /4 tile transmitting power: Urban 1-3 km, 3-5 km open;

3 Watt /2 tile transmitting power: Urban 500 meters -2 km, 1-3 km open;

1 watt /0.5 tile transmitting power: the urban area 200 meters -800 meters / open space 500 meters -1.5 km.

2, energy-saving

50 Watt /40 tile transmitting power: Urban 5-15 km, 10-25 km open;

25 Watt /20 tile transmitting power: the urban 3-10 km, 5-15 km open;

10 watt /5 tile transmitting power: the urban 1-5 km, 3-8 km open;

3, the shortwave walkie talkie

The distance is very far, support of the external environment condition, can across the province and even international communication, but the shortwave intercom?Ping? Above 3 levels of amateur radio operation certificate, otherwise regarded asillegal operation.

4, the cluster of walkie talkie

Very far away from the city, the basic can be generally used in networkcommunication, * *, need high cost of cluster network.

5, the installation of relay station

Relay station costs are relatively high, but the handheld walkie talkie and walkie talkie on the vehicle through the relay, can increase the effective communication distance mate.

Walkie talkie operating considerations:

1, when the walkie talkie was launched, talkie in a vertical position to maintain andkeep the microphone and mouth 2.5-5 cm distance. Launch,

Walkie talkies from the head or the body of at least 2.5 cm.

2, do not use in the course of many on-off action, while the volume was adjusted to fit the volume of your hearing.

The walkie talkie to use safety precautions:

1, with airbags in cars, walkie talkie on the balloon will not expand scope may be involved in the. If the walkie talkie in areas relating to airbag deployment, once the balloon launched rapidly, walkie talkies may be as great impact injuries to the officers inside.

2, in a potentially explosive atmosphere or the occasion, unless the interphone isexplosion-proof intercom special certification through the walkie talkie, otherwisemust be closed. In potentially explosive atmosphere, electric spark can cause an explosion or fire.

3, not a potentially explosive atmosphere under the replacement battery or batteries.May cause contact EDM and cause an explosion installation and removal of the battery.

4, near blasting area and detonator region before, must first close the walkie talkie,in order to avoid a possible explosion.

Walkie talkie routine maintenance:

1, walkie talkie after long-term use, by the health, the control knob and the casing is easy to dirty, please remove the control knob on the intercom, and use neutral detergent (do not use strong corrosive chemicals) and a damp cloth to clean the cabinet. Damage to the use of such as detergents, alcohol, spray or oil preparation and other chemicals may cause the walkie talkie surface and shell.

2, gently walkie talkie, not portable antenna for mobile interphone.

3, do not use Headset and other accessories, please cover dust-proof cover (ifequipped).

2015 quality Oxford canvas men’s messenger bags phone pocket document male shoulder tote straps Business man handbags Briefcase US$ 36.00/piece

2015 brand newstyle men’s messenger bags office male shoulder bag cell phone pocket document holder handle Businessman Briefcase US$ 38.00/piece

A fashion popular good-brand Applied Riding Oxford men’s Messenger waist Bags Outdoor multifunction Pocket fanny pack edc US$ 29.88/piece

A Exquisite fashion popular Applied canvas Unisex men’s a Shoulder Messenger Bags Outdoor multifunction Women’s travel bag US$ 34.22/piece

Korean 2015 newstyle fashion high quality canvas men’s Messenger Bags Travel male Shoulder Retro bag strap Casual package phone US$ 27.88/piece

2015 A Casual trend canvas+Genuine Leather Multi purpose men’s Messenger Bags or computer holder Shoulder Leisure package US$ 34.66/piece

2015 fashion new quality ployester oxford Business men’s Shoulder Messenger Bags for male Briefcase swissgear canvas casual bag US$ 37.68/piece

A pop Exquisite genuine leather men’s messenger bags for famous brands shoulder bag Business Package Briefcase fashion packet US$ 36.00/piece

Spray oil painting flowers canvas Adornment Drawing Wall Pictures sofa Printing hang Living Dining room mural large size spring US$ 26.00/piece

Spray oil painting canvas Adornment Drawing Wall Pictures sofa Printing hang Living room mural large size European girl portrait US$ 26.00/piece

Spray painting canvas Adornment Drawing Wall Pictures sofa Printing hang Living Dining room mural large size background spring US$ 26.00/piece

customized Spray painting canvas Adornment Venice Drawing Wall Picture sofa Printing hang Living room mural large size Watertown US$ 26.00/piece

Swan Lake Spray painting canvas Adornment europe style Drawing Wall Pictures sofa Printing hang Living room mural large size US$ 26.00/piece

Customized Spray painting canvas europe portrait Drawing Wall Pictures Printing hang figures Palace Living room mural large size US$ 28.00/piece

customized Spray painting canvas Adornment Mediterranean Drawing Wall Pictures sofa Printing hang Living room mural large size US$ 26.00/piece

Spray oil painting canvas Adornment Drawing Wall Pictures sofa Printing hang Living room mural large size European rural spring US$ 28.00/piece