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Form Factor:

Bus / Interface Type:

Data Rate:

PoE Ready?

Full Duplex Transmission?

Antenna Included?

RF Connector?

Maximum Output Power:

Number of Channels:

Sensitivity:

Frequency Band:

Operating Mode:

Radio Technique:

Help with Radio Modems specifications:

General Specifications
   Form Factor       
   Your choices are...         
   Internal       An internal radio modem is a computer card that is attached to the wired network through a computer that is part of the network. 
   External       An external radio modem is a module that is connected to the wired network by means of a physical port or interface. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Bus / Interface Type:       
   Your choices are...         
   Type II Card       Type II card dimensions are 54mm x 85.4mm and may be up to 5.5 mm thick. Common uses of these cards: I/O devices such as data / fax modems, LAN adapter, non-rotating mass storage devices, etc. 
   CardBus       A card bus is a PC card with 32 bits of address and data. It runs at 33 MHz. 
   ISA       Industry standard architecture (ISA) buses can handle 16-bit data transfers at a clock speed of 8 MHz. They are also capable of handling memory under 16 MB. Extended ISA (EISA) is an enhanced version of the ISA bus. EISA buses run at 8 MHz, are capable of 32-bit data transfers, and can access all memory in the system. 
   PCI       Peripheral component interconnect (PCI) is a local bus system designed for high-end computer systems. PCI buses transfer 32 or 64 bits of data at a clock speed of 33 MHz. They also support 3 to 5 critical peripherals, which are either integrated directly onto the motherboard or added via expansion cards. PCI buses fully support cards that were developed for standard I/O buses. 
   RJ-45       RJ-45 connectors look a bit like a standard phone connector but are twice as wide (with eight wires). RJ-45s are used for connecting computers to local area networks (LANs), or for phones that connect to a number of lines. 
   ISDN BRI S/T Interface       The S/T interface is the connector on the ISDN modem where other ISDN devices connect in order to communicate over ISDN. 
   Serial Ports (RS232, RS422, RS485)       Serial Ports (Asynchronous Serial Interface): A system-to-system communication interface. Data is sent over a single wire (serial). Transmission is asynchronous because no synchronization or clocking signal is present. 
   ST       Designation for the "straight tip" connector developed by AT&T. This fiber optic connector features a physically contacting non-rotating 2.5mm ferrule design and bayonet connector-to-adapter mating. Used with Ethernet 10Base-FL and FIORL links. 
   USB       Universal serial bus (USB) is a 4-wire, 12-Mbps serial bus for low-to-medium speed peripheral device connections to personal computers (PC), including keyboards, mice, modems, printers, joysticks, audio functions, monitor controls, etc. The USB design is standardized by the USB Implementers Forum (USBIF), an organization that includes leading companies from the computer and electronics industries. The current USB specification is USB 2.0, which supports data transfer rates of up to 480 Mbps. 
   Other       Other unlisted interfaces. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Data Rate       The maximum data transfer rate at which the modem can deliver data. It is normally expressed in bits/second. 
   Search Logic:      All matching products will have a value greater than or equal to the specified value.
   PoE Ready       The device is designed to use Power Over Ethernet (PoE) signals. The data signal and the power is delivered in one cable to Powered Device (PD). 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
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Performance
   Full Duplex Transmission?       Full duplex devices can transmit and receive at the same time. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Antenna Included?       An antenna may or may not be an integral part of the modem. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   RF Connector?       Some radio modems include an RF connector that can be used to connect an antenna, or any other suitable RF device.  Type of connectors: BNC, TNC, N, etc. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Maximum Output Power:       This is the transmission power of the device. It is defined as the strength of the signals emitted, often measured in mW. 
   Search Logic:      All matching products will have a value greater than or equal to the specified value.
   Number of Channels:       The number of transmitting and receiving channels of the device. 
   Search Logic:      All matching products will have a value greater than or equal to the specified value.
   Sensitivity:       The sensitivity is the measure of the weakest signal that may be reliably sensed by the receiver. Sensitivity is measured in dBm, and the lower the value (higher in absolute value) the better is the receiver. 
   Search Logic:      All matching products will have a value less than or equal to the specified value.
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Radio Link Specifications
   Frequency Band:       
   Your choices are...         
   900 MHz       The 900 MHz band comprises the 902 - 928 MHz range. It is one of the unlicensed Industrial, Scientific and Medical (ISM) bands.  Users are free to access them without having to register with any regulating organization (FCC for North America, ETSI for Europe, etc.).  In North America the maximum transmission power allowed is 1 W. 
   2.4 GHz       The 2.4 GHz band comprises the 2.40000 - 2.4835 GHz range. It is one of the unlicensed Industrial, Scientific and Medical (ISM) bands.  Users are free to access them without having to register with any regulating organization (FCC for North America, ETSI for Europe, etc.).  In North America the maximum transmission power allowed is 1 W. 802.11b and 802.11g operate in this frequency band. 
   5 GHz       European Telecommunications Standards Institute (ETSI) was the first to open the 5 GHz unlicensed bands, and at present are dedicated to HiperLan (5.2 GHz band), HiperLan II (5.4 GHz). In North America the FCC has allocated the band between 5.2 and 5.8 GHz to the Unlicensed National Information Infrastructure (UNII). 802.11a also operates in this frequency band. 
   23 GHz       Microwave radio system transmitting in the frequency band of 21.2 to 23.6 GHz. 
   UHF       The ultra high frequency (UHF) radio band is from 300 MHz to 3000 MHz. 
   VHF       The very high frequency (VHF) radio band is from 30 MHz to 300 MHz. 
   Other       Other unlisted frequency bands. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Operating Mode       
   Your choices are...         
   Point-to-Point       The modem / radio modem can transmit to only one modem / radio modem at a time. 
   Point-to-Multipoint       The modem / radio modem can transmit to several modems / radio modems at a time. 
   Repeater Mode       The modem / radio modem has repeater capabilities. 
   Other       Other unlisted operating modes. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Radio Technique:       
   Your choices are...         
   Direct Sequence Spread Spectrum       Spread spectrum is a technique that is used to reduce the impact of localized frequency interferences. To achieve this, it uses more bandwidth than the system needs.  There are two main spread spectrum modalities: direct sequence and frequency hopping. The principle of direct sequence spreads the signal on a larger band by multiplexing it with a code (signature) to minimize localized interference and noise.  The system works over a large band. To spread the signal, each bit is modulated by a code. 
   Frequency Hopping Spread Spectrum       Spread spectrum is a technique that is used to reduce the impact of localized frequency interferences. To achieve this, it uses more bandwidth than the system needs.  There are two main spread spectrum modalities: direct sequence and frequency hopping. Frequency hopping uses a technique where the signal walks through a set of narrow channels in sequence.  The transmission frequency band is divided in certain number of channels, and periodically the system hop to a new channel, following a predetermined cyclic hopping pattern. The system avoids interference by never staying in the same channel a long period of time. 
   Other       Other unlisted radio techniques such as infrared, narrowband, etc. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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