guard band

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guard band

n
(Broadcasting) a space left vacant between two radio frequency bands, or between two tracks on a magnetic tape recording, to avoid mutual interference
References in periodicals archive ?
33 kilohertz (kHz) channel spacing in the range of 118 to 137 megahertz (MHz).
5/25 Khz Channel Spacing Heliflex Antenna, Alphanumeric Display, 1450 Mah Ni-Mh Bty, Spare Ni-Mh Battery For Radios, Single Unit Rapid Rate Trichemestry Battery Charger With Adaptor For Radios
Suggestions for Reducing Crosstalk DESIGN FEATURE DIRECTION FOR BETTER OR WORSE Aggressor TX and victim RX Asynchronous generally worse synchronous or asynchronous Channel-to-channel spacing Larger is better FEXT: microstrip or stripline Stripline is better NEXT: microstrip or stripline Stripline is better for channel to channel spacing >2x line width Differential impedance Lower impedance is generally better Interleaved or non-interleaved Microstrip: best is interleaved Stripline: best is non-interleaved Line to line coupling Tighter is always better.
The European Commission requires operators of aeronautical radio transmit and receive stations to reduce their channel spacing from 25 kHz to 8.
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.
Fiberspace is dedicated to providing high performance, low-cost products for metro and long haul applications requiring very close channel spacing.
It operates at ITU wavelengths of 50 gigahertz (GHz) channel spacing, at rates up to 12.
Fully compliant with European Telecom Standard Institute (ETSI) EN 300676 standard, the radio operates within the 118-137 MHz airband with channel spacing of 25KHz, 12.
When dealing with thin-film filter process architecture, as channel spacing is reduced to increase the number of channels in a single component, greater constraints are placed on the component filter.
Commenting on the report, an analyst from TechNavio's Networking team said: "In order to decrease the manufacturing cost of network equipment and its subsequent rollout, most optical network providers, internet service providers (ISPs), and equipment manufacturers are demanding tighter channel spacing wavelength select switches.