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Why is the maximum transmission rate of to-days modems limited to 56.6 kbps why might a modem not transmit at this speed?
Coreymcmlln
because of the sampling rate (8,000 samples every second) used by the telephone company when converting analog signal to digital, and taking into account the overhead of data transmission (bits and bytes sent with the data that are used to control and define transmissions), the maximum transmission rate that a modem can attain over a regular phone line is about 56,000 bps or 56 kbps.
disturbances (noise), bad wiring, lightning, or interference from fluorescent lights, radios, or TVs can cause transmission problems resulting in slower transfers.
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What bandwidth do traditional modems use to transmit data?
2400 Hz
Modems use what type of transmission?
asyncronous
What are the advantages and disadvantages of modems?
Advantage: Modems not expensive. Higher transmission speed. Telephone can still be used. :)
How fast can dial-up modems transfer data?
The fastest dial-up modems have a maximum transfer rate of 56 kbps.
What does receive mean on your modem?
Part of your modems specs are its Transmit and Receive levels . It varies from company to company but the basic rule is transmit between 32-52 and receive between -10 and +10.
A cable modem uses phone lines?
Nope. That is dial-up. Cable modems use coaxial cables to transmit data.
How does RADSL transmit data on a connection?
Using varying bit ratesUsing two pairs of twisted-pair cableUsing sending and receiving modems
What items are considered part of the physical layer of a network?
Modems Transmission media connectors Repeaters
What is serial transmission?
Serial transmission is a method of transmitting data where one bit is transmitted after another in a single wire. Serial transmission is usually used to transmit data between two computers as it is less expensive, yet at a cost of a slightly slow speed. A minimum of two wires is needed for serial transmission, which is less compared to a minimum of eight wires in parallel transmission. Serial transmission is used to send data over long distances as the bits are less likely to get out of order. It is used in devices such as modems, bar code readers and light pens .
What are the two forms of modems?
The two forms of modems are dial-up modems and private line modems
What are some uses for fiber cable?
Fiber cable, or fiber optic cable, is primarily used to transmit bandwidth. Cable service providers and internet service providers use these cables to transmit their services to devices, such as modems and cable box units in consumers' homes.
What uses radio waves to transmit data signals over short distances and does not need a direct line of sight?
WiFi modems, highway toll transponders, and Bluetooth® thingies do that.
