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channel spacing

   Also found in: Wikipedia 0.01 sec.
channel spacing
The amount of bandwidth allotted to each channel in a communications system that transmits multiple frequencies such as fiber optics. It is measured as the spacing between center frequencies (or wavelengths) of adjacent channels. See guard band.

Channel Spacing in Optical Fibers
The first 10 Gbps example with 50 GHz spacing has a slight signal overlap, but with 100 GHz, there is none. The first example provides more bandwidth, but the overlap could be enough to cause significant crosstalk. (Illustration courtesy of Jeff Hecht.)

channel spacing [′chan·əl ‚spās·iŋ]
(communications)
The difference in frequency between successive radio or television channels.


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5/25 kHZ channel spacing * Includes a rechargeable battery pack, voice-activated or push-to-talk transmitting and a noise-canceling boom microphone * For use in high-noise communication applications where users want a simple integrated headset and two-way radio solution without the need for belt radios * Available in three configurations: standard headband, neckband for use with or without hardhats and hardhat clip-in for use with slotted hardhats Visit www.
Other features include multiple-tone signaling, both wide and narrow channel spacing, and three steps of output power.
The radio itself is tuned via software, so it can be programmed to find signals mechanically tuned radios can't, and the variable IF filter algorithm automatically adjusts to either 100 KHz (European) or 200 KHz (North American) channel spacing.
 
 
 
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