Q. i dont have unlimted minutes on my cell phone.my parents believe that if you have a wireless your neighbors could listen to the conversation know i cant talk on the phone while on the computer or go to my room im going to show my parents the anwsers please help convince them that a wireless land line is better
A. the first cordless phones operated around 48Mhz as well as baby monitors and the like...and were easy for people to listen in on your conversations.. it was not uncommon for a baby monitor to pick up your conversation, or for 2 cordless phones to hear each other....
the 900 Mhz phones solved some of those problems... but people with radio scanners (police scanners) could still listen in on your calls...
DSS technology stopped that... and many newer 900 Mhz phones come with DSS...
also most 2.4Ghz phones have DSS or FHSS, aside from that, most radio scanner equiptment only goes up to 1.3Ghz - however these phones may interfere with WiFi
5.8Ghz phones also normally come with DSS or FHSS... and again are outside the range of most radio scanners.... however, because they are a higher frequency the range is less...
DECT phones operate within the 1.9Ghz range, are immune to interference from other devices, and provide the best range, clarity, and security...
so the only way that a neighbor can listen in to your conversation with a cordless phone that you purchace today would be if you bought a 900Mhz phone that did not have DSS....
the 900 Mhz phones solved some of those problems... but people with radio scanners (police scanners) could still listen in on your calls...
DSS technology stopped that... and many newer 900 Mhz phones come with DSS...
also most 2.4Ghz phones have DSS or FHSS, aside from that, most radio scanner equiptment only goes up to 1.3Ghz - however these phones may interfere with WiFi
5.8Ghz phones also normally come with DSS or FHSS... and again are outside the range of most radio scanners.... however, because they are a higher frequency the range is less...
DECT phones operate within the 1.9Ghz range, are immune to interference from other devices, and provide the best range, clarity, and security...
so the only way that a neighbor can listen in to your conversation with a cordless phone that you purchace today would be if you bought a 900Mhz phone that did not have DSS....
Long range cordless home phone?
Q. I used to have a 900mhz phone that had a range of several hundred feet. Now that it has dies though I have not been able to find another system that works any where near as well as my old one. I have tried two systems that work on 5.8ghz from Uniden and Pansonic but both have horrible range. I am considering tiring the new DECT 1.9ghz phones but i am not sure that will work any better for me. Whatever I get needs to be able to be purchased and possibly returned locally in the Charolote North Carolina area.
In particular any recommendations for specific phones?
In particular any recommendations for specific phones?
A. In general, you can expect better clarity as you move from 46-49 MHz models (which are overcrowded with baby monitors and walkie-talkies) to 900 MHz models (which most homes use for cordless phones) to 2.4 GHz models. The primary benefit of 5.8 GHz models is the avoidance of interference with 802.11b wLANs and microwaves. If interference is your primary concern, make sure you purchase a fully 5.8 GHz phone.2 Otherwise, a dual transmission phone will give you better battery life.
As for range, here are some average maximum distances for the different technologies. Keep in mind that these numbers are very subjective and depend on factors such as obstructions, frequency interference, transmission technology, and even weather. The higher figure listed assumes ideal conditions are present.
46-49 MHz - 40 to 250 feet
900 MHz - 75 to 400 feet
900 MHz w/spread spectrum - 200 to 1500 feet
2.4 GHz w/spread spectrum - 300 to 2000 feet
5.8 GHz w/spread spectrum - 300 to 2000 feet
In addition to their other advantages, the 2.4 GHz and 5.8 GHz frequency bands are above the range that most scanners can intercept, making it much more difficult for eavesdroppers to listen to your conversations.
As for range, here are some average maximum distances for the different technologies. Keep in mind that these numbers are very subjective and depend on factors such as obstructions, frequency interference, transmission technology, and even weather. The higher figure listed assumes ideal conditions are present.
46-49 MHz - 40 to 250 feet
900 MHz - 75 to 400 feet
900 MHz w/spread spectrum - 200 to 1500 feet
2.4 GHz w/spread spectrum - 300 to 2000 feet
5.8 GHz w/spread spectrum - 300 to 2000 feet
In addition to their other advantages, the 2.4 GHz and 5.8 GHz frequency bands are above the range that most scanners can intercept, making it much more difficult for eavesdroppers to listen to your conversations.
Does anyone know the frequincies of At&t cordless phones?
Q.
A. not understanding why you need the frequencies for...
the 1st gen cordless phones had 25 channels, around 40-50 mhz... not many of these phones are in use any longer, but the actual channels are listed many places online....
900mhz phones operate on a much larger range of channels in the 900 mhz range, with the handset and base usually using 2 diffrent frequencies, they are mostly between 900mhz, and 925mhz....
DSS was introduced several years after many insecure 900 mhz phones were already in use, and many people still have 900 mhz phones with out DSS (i have seen radio shack still selling these phones for about $20 less than a year ago) DSS encrypts the signal into a digital signal, and changes channels constantly, to reduce or eliminate possible eavesdropping.
2.4 ghz I am uncertain as to how many frequencies that these phones use, but 2.4 ghz = 2400 mhz so they are within that range... along with wifi networks, and while you are unable to change the channel your phone operates on, if there is interfearance between the phone and wifi network, you can change the channel that the wifi operates on, with the routers control pannel accessed by putting 192.168.1.1 into your web browser and entering the router user name and password *usuallay admin / password*
5.8 ghz phones operate within 5800mhz . and like 900 mhz DSS phones, and 2.4 ghz phones they are digital, and change channels automaticllay to the clearest channel, to my knowledge there is no consumer product that is capable of reciving 2400mhz or 5800mhz and listening in to these conversations.... \
DECT phones operate within 1.9ghz or 1900mhz....
as the lower the frequency the further the range, and longer battery life you will recieve, the best phones that are sold today are the 900 mhz phones, however, for security, the best phone to purchave, with the 2nd to best range is the DECT 1.9 ghz phone.. also the DECT phone will not get interfearance with your wifi network...
unsure what you need this info for.. but FYI if you plan on using a radio scanner to pick up phone conversations...
1- it is illegal to listen in on or record a phone conversation to which you are not a part of...
2- if number 1 didnt scare you... most people now have 2.4 or 5.8 cordless phones, which make it very difficult to find something to listen to (but then again, there are those baby monitors...)
3- most phone conversations are just not worth listening to any how... most conversations between people are boring..
the 1st gen cordless phones had 25 channels, around 40-50 mhz... not many of these phones are in use any longer, but the actual channels are listed many places online....
900mhz phones operate on a much larger range of channels in the 900 mhz range, with the handset and base usually using 2 diffrent frequencies, they are mostly between 900mhz, and 925mhz....
DSS was introduced several years after many insecure 900 mhz phones were already in use, and many people still have 900 mhz phones with out DSS (i have seen radio shack still selling these phones for about $20 less than a year ago) DSS encrypts the signal into a digital signal, and changes channels constantly, to reduce or eliminate possible eavesdropping.
2.4 ghz I am uncertain as to how many frequencies that these phones use, but 2.4 ghz = 2400 mhz so they are within that range... along with wifi networks, and while you are unable to change the channel your phone operates on, if there is interfearance between the phone and wifi network, you can change the channel that the wifi operates on, with the routers control pannel accessed by putting 192.168.1.1 into your web browser and entering the router user name and password *usuallay admin / password*
5.8 ghz phones operate within 5800mhz . and like 900 mhz DSS phones, and 2.4 ghz phones they are digital, and change channels automaticllay to the clearest channel, to my knowledge there is no consumer product that is capable of reciving 2400mhz or 5800mhz and listening in to these conversations.... \
DECT phones operate within 1.9ghz or 1900mhz....
as the lower the frequency the further the range, and longer battery life you will recieve, the best phones that are sold today are the 900 mhz phones, however, for security, the best phone to purchave, with the 2nd to best range is the DECT 1.9 ghz phone.. also the DECT phone will not get interfearance with your wifi network...
unsure what you need this info for.. but FYI if you plan on using a radio scanner to pick up phone conversations...
1- it is illegal to listen in on or record a phone conversation to which you are not a part of...
2- if number 1 didnt scare you... most people now have 2.4 or 5.8 cordless phones, which make it very difficult to find something to listen to (but then again, there are those baby monitors...)
3- most phone conversations are just not worth listening to any how... most conversations between people are boring..
what does 5.8 GHz cordless phones mean?
Q. what is the advantage of buying onewith these feaures?
A. 5.8 Ghz is the HIGHEST frequency available for cordless phones ... so if all other factors were equal, it would be the worse choice for a cordless phone, since the higher the frequency the less range you get, or higher battery consumption to get equal distances as a lower frequency..
however, all things are NOT equal... 2.4Ghz is an over crowded frequency, not only including WiFi, wireless cameras, baby monitors, wireless doorbells, microwave ovens, and many other wireless consumer electronics. the 5.8Ghz range is less crowded, although it does share its RF with some wireless consumer electronics. if you have WiFi it is the better alternative to a 2.4Ghz phone, and cheaper than the better alternative which would be a 1.9Ghz DECT6.0 phone..
however, all things are NOT equal... 2.4Ghz is an over crowded frequency, not only including WiFi, wireless cameras, baby monitors, wireless doorbells, microwave ovens, and many other wireless consumer electronics. the 5.8Ghz range is less crowded, although it does share its RF with some wireless consumer electronics. if you have WiFi it is the better alternative to a 2.4Ghz phone, and cheaper than the better alternative which would be a 1.9Ghz DECT6.0 phone..
Powered by Yahoo! Answers
Title Post: do wireless landlines pick up yours or your neighbors phone conversation?
Rating: 96% based on 987 ratings. 4,3 user reviews.
Author: Unknown
Thanks For Coming To My Blog
Rating: 96% based on 987 ratings. 4,3 user reviews.
Author: Unknown
Thanks For Coming To My Blog
No comments:
Post a Comment