cable modem basics | cable modem manufacturers | vendors

This page covers cable Modem basics and mentions cable modem manufacturers. The page covers part numbers and specifications of cable modems provided by various manufacturers.

Broadband connections have become much faster with the transmission of internet data using radio waves over Hybrid fiber coaxial or over RFoG ( Radio Frequency over Glass).

This service is available using cable modem provided by cable service provider for internet or broadband connection. One needs to have coaxial cable coming into house to avail cable modem internet service. It doesn't require any landline telephone connection to the house neither you need to pay for cable TV service if you only want cable internet.

Cable TV uses coaxial cable or combination of both fiber optic and coaxial cable. The Bandwidth of the system is about 750MHz. TV channel spectrum ranges from 50MHz to 550 MHz. This 500 MHz spectrum can accommodate about 83 channels having 6MHz BW each. The spectrum above this is used for digital data transmission.

cable modem

The advantage of cable internet is that it provides faster data rate compare to DSL and Dial-up modems.

Cable modem uses 64QAM for downstream data and QPSK for upstream data channels. The advantage of cable modem is the higher data rate compare to standard telephone system, but it needs availability of cable TV system.

List of cable modem manufacturers

Following table mentions list of cable modem manufacturers along with their features and technical specifications.

Vendor or Manufacturer Description
TP-Link Model number TC7650-E supports DOCSIS 3.0, gigabit speeds and uses 1 GHz dual core processor. It supports IPv4 and IPv6 protocols.
ARRIS Model number SURFboard SB6190 supports speeds of 1.4 Gbps (downstream) and 262 Mbps (Upstream) as per subscription charges. It supports 32 downstream and 8 upstream channels. It houses both IPv4 and IPv6 protocol stacks.
NETGEAR The model number CM400 high speed cable modem supports downlink speed of 343 Mbps and uplink speed of 131 Mbps. It has 8 downstream channels and 4 upstream channels.
Motorola Model MB7420 is ideal for gaming applications. It supports 16 x 4 DOCSIS 3.0 standard. It provides speeds of about 686 Mbps.
D-Link Model DCM-301 supports downstream speeds of about 320 Mbps using 8 channel bonding and upstream speeds of about 160 Mbps. It is DOCSIS compatible.
Linksys Model CM3008 supports DOCSIS 3.0 and 8/4 down and up streams respectively. It houses Intel Puma 5.0 chipset.
Zoom Model number 5370 is 16 x 4 cable modem. It supports speeds of 686 Mbps. It is compatible with DOCSIS 3.0, DOCSIS 2.0 and DOCSIS 1.1.

HF modem, GSM Modem, Satellite Modem, DSL modem, Dial Up modem Related Links

•  HF Modem >> Manufacturers/Suppliers.
•  GSM Modem >> or GPRS modem Manufacturers/Suppliers.
•  Satellite Modem >> Manufacturers/Suppliers.
•  DSL Modem >> basics and manufacturers.
•  Dial Up Modem >> basics and manufacturers.

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