What harm PHS
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Users questions:What are disadvantages of PHS
Experts answer: PHS is a fixed telephone network to complement and extend the technology originated in Japan, has been used the world over 20 countries. It uses advanced micro-cellular communication technology, through the base station wirelessly connected with the fixed-line switch. Qingdao is the result of PHSCity approval, support the island city as the Olympic building important project. At present, Qingdao communications company has invested heavily in this. We use the PHS base stations, there are two, one is transmitting power of 0.5 watts outdoor intelligent, a 0.02-watt indoor type. As the PHS base station transmit power is very small, Equivalent to only watch TV when the TV screen the radiation, so if the base station built in the upstairs is something that we totally do not worry about what effect would the health. The following several advantages on the PHS business here for everyone to be a detail. (1) lower cost as. This can be the biggest advantage of PHS. Lower cost asMainly in two aspects, one-way toll collection. Answer a call using the PHS is not spending money. Second, low call charges. Although PHS is a mobile communication tool, but its fixed-line call costs are and, like the first three-minute local call 0.22 yuan, 0.11 yuan per minute after, you can also easilyMake long-distance IP phone, regular phone and the cost of 0.4 yuan * minutes, compared the advantages of PHS is very clear. In addition, the PHS also various types of pre-paid form for your choice. It can be said for the majority of consumers, this is a very economical way to communicate, use Little Smart "to fightThe phone more, spend less cost, "" affordable, playing up ", to save money, but real. (2) radiation is very small, is truly" green phone. "Improved living standards is now , and buy products when no longer focus only on price and quality, use of the process can ensure the good health and hasIt is particularly important, "green consumerism" is also being advocated by the community. PHS's "green" is reflected in where? Generally, the transmission power of ordinary phone in between 600mW to 1000mW, radiation greater cite a simple example, a cell phone on your computer monitor next to a signal accessYou'll see when the display was too out of shape interference. If the phone on the audio side, sound radiation will be as mobile phones have some echo. Also, if the phone too long continuous talk time, then there will always be the head discomfort. The PHS handsets average transmit power 10mW,Ordinary GSM mobile phone 1 * 60-1 * 100, therefore, does not produce the above effects, long talk time will not feel discomfort, ensuring a healthy, is a real environmentally friendly products. This is why consumers choose one of the important reasons PHS. In addition, in many places strict limits on radiationSuch as hospitals, airports, etc. are not allowed to use ordinary cell phones, this is bound to bring communications inconvenience, but they can freely PHS, fully demonstrated the advantages of its green phone. (3) within the network, call clarity, the effect close to the fixed telephone. PHS currently used as Qingdao is the most advancedSmart base stations and base station density, to ensure the communication quality, clear voice to make you enjoy the fun of communication, we can rest assured that use. (4) and compared with ordinary mobile phones, PHS number only seven, and the fixed telephone as simple and easy to remember, no longer have to worry about the long phone number. (5) PHS phone is very lightweight, high-capacity lithium battery, one charge usually within 15 days standby, talk time up to 6 hours or more, eliminating the need for repeatedly charge trouble. (6) In addition, the PHS service also provides many value-added services such as caller ID, call forwarding, short message in Chinese, PHSSecretary desk, wireless Internet, GPS positioning, will open the Internet to send text messages, pictures, ringtones and other functions, to provide a number of PHS users the convenience and fun. Although PHS has so many advantages, compared with ordinary mobile phones, it also has some deficiencies. (1) PHS only in Qingdao City FanWithin the use, no roaming, if your business trip, then PHS can not do anything. (2) The PHS base stations, small power, signal penetration less, so individual corner, the lift may be temporarily unavailable. But as network optimization, this situation will soon be changed, communication performanceWill continue to increase. (3) there is the use of PHS in the high speed signal will be very short switching phenomenon, but does not affect normal call. If the speed exceeds 80 km, we can not guarantee call quality of the PHS.
Experts answer: PHS is a fixed telephone network to complement and extend the technology originated in Japan, has been used the world over 20 countries. It uses advanced micro-cellular communication technology, through the base station wirelessly connected with the fixed-line switch. Qingdao is the result of PHSCity approval, support the island city as the Olympic building important project. At present, Qingdao communications company has invested heavily in this. We use the PHS base stations, there are two, one is transmitting power of 0.5 watts outdoor intelligent, a 0.02-watt indoor type. As the PHS base station transmit power is very small, Equivalent to only watch TV when the TV screen the radiation, so if the base station built in the upstairs is something that we totally do not worry about what effect would the health. The following several advantages on the PHS business here for everyone to be a detail. (1) lower cost as. This can be the biggest advantage of PHS. Lower cost asMainly in two aspects, one-way toll collection. Answer a call using the PHS is not spending money. Second, low call charges. Although PHS is a mobile communication tool, but its fixed-line call costs are and, like the first three-minute local call 0.22 yuan, 0.11 yuan per minute after, you can also easilyMake long-distance IP phone, regular phone and the cost of 0.4 yuan * minutes, compared the advantages of PHS is very clear. In addition, the PHS also various types of pre-paid form for your choice. It can be said for the majority of consumers, this is a very economical way to communicate, use Little Smart "to fightThe phone more, spend less cost, "" affordable, playing up ", to save money, but real. (2) radiation is very small, is truly" green phone. "Improved living standards is now , and buy products when no longer focus only on price and quality, use of the process can ensure the good health and hasIt is particularly important, "green consumerism" is also being advocated by the community. PHS's "green" is reflected in where? Generally, the transmission power of ordinary phone in between 600mW to 1000mW, radiation greater cite a simple example, a cell phone on your computer monitor next to a signal accessYou'll see when the display was too out of shape interference. If the phone on the audio side, sound radiation will be as mobile phones have some echo. Also, if the phone too long continuous talk time, then there will always be the head discomfort. The PHS handsets average transmit power 10mW,Ordinary GSM mobile phone 1 * 60-1 * 100, therefore, does not produce the above effects, long talk time will not feel discomfort, ensuring a healthy, is a real environmentally friendly products. This is why consumers choose one of the important reasons PHS. In addition, in many places strict limits on radiationSuch as hospitals, airports, etc. are not allowed to use ordinary cell phones, this is bound to bring communications inconvenience, but they can freely PHS, fully demonstrated the advantages of its green phone. (3) within the network, call clarity, the effect close to the fixed telephone. PHS currently used as Qingdao is the most advancedSmart base stations and base station density, to ensure the communication quality, clear voice to make you enjoy the fun of communication, we can rest assured that use. (4) and compared with ordinary mobile phones, PHS number only seven, and the fixed telephone as simple and easy to remember, no longer have to worry about the long phone number. (5) PHS phone is very lightweight, high-capacity lithium battery, one charge usually within 15 days standby, talk time up to 6 hours or more, eliminating the need for repeatedly charge trouble. (6) In addition, the PHS service also provides many value-added services such as caller ID, call forwarding, short message in Chinese, PHSSecretary desk, wireless Internet, GPS positioning, will open the Internet to send text messages, pictures, ringtones and other functions, to provide a number of PHS users the convenience and fun. Although PHS has so many advantages, compared with ordinary mobile phones, it also has some deficiencies. (1) PHS only in Qingdao City FanWithin the use, no roaming, if your business trip, then PHS can not do anything. (2) The PHS base stations, small power, signal penetration less, so individual corner, the lift may be temporarily unavailable. But as network optimization, this situation will soon be changed, communication performanceWill continue to increase. (3) there is the use of PHS in the high speed signal will be very short switching phenomenon, but does not affect normal call. If the speed exceeds 80 km, we can not guarantee call quality of the PHS.
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- This information provided by the users.Thanks!
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