Many SysOps were transplants of the amateur radio community and thus amateur and packet radio were often popular topics.

Many of the sketches were lifted from the radio version, even to the extent of simply setting images to the radio soundtrack.

Many countries are replacing broadcast analog television with digital television to allow other uses of the television radio spectrum.

Many other radio stations in the city broadcast at least an hour of Irish language programming per week.

Many inductors used in radio applications ( usually less than 100 MHz ) use adjustable cores in order to tune such inductors to their desired value, since manufacturing processes have certain tolerances ( inaccuracy ).

Many large countries in turn have internal rules on how and where specific subsets of their callsigns can be used ( such as Mexico's XE for AM and XH for FM radio and Television broadcasting ), which are not covered here.

Many of Pakistan ’ s independent television and radio stations are based in Karachi, including world-popular Business Plus, AAJ News, Geo TV, KTN, Sindh TV, CNBC Pakistan, TV ONE, ARY Digital, Indus Television Network, Samaa TV and Dawn News, as well as several local stations.

* Interview with Peter Maresca ( editor of So Many Splendid Sundays ) and Art Spiegelman from the KCRW radio show Bookworm-excerpt from the book

Many amateur radio repeaters, for example, identify with Morse, even though they are used for voice communications.

Many radio and television weather forecasters are professional meteorologists, while others are merely reporters ( weather specialist, weatherman, etc.

* Interview with Tufts cosmologist Alex Vilenkin on his new book, " Many Worlds in One: The Search for Other Universes " on the podcast and public radio interview program ThoughtCast.

Many visitors to Nashville attend live performances of the Grand Ole Opry, the world's longest running live radio show.

Many were recorded as radio sources with no corresponding visible object.

Many SETI League members are licensed radio amateurs and microwave experimenters.

Many complaints ( all radio stations are required by the FCC to maintain, in their public files, copies of all correspondence from the public relating to station operations – for a period of three years from receipt ) have been received from fans of this musical genre ( Tony Bennett, Frank Sinatra, big band music ," etc.

Many early radio sets had a third battery called the " C battery " ( unrelated to the present-day C cell ) whose positive terminal was connected to the cathode of the tubes ( or " ground " in most circuits ) and whose negative terminal supplied this bias voltage to the grids of the tubes.

Many designs used such a screen grid as an additional anode to provide feedback for the oscillator function, whose current was added to that of the incoming radio frequency signal.

* Many more computers and other technologies were implemented in vehicles throughout the decade such as: Xenon HID headlights, GPS, DVD players, self-diagnosing systems, memory systems for car settings, back-up sensors and cameras, in-car media systems, MP3 player compatibility, USB drive compatibility, keyless start and entry, satellite radio, voice-activation, cellphone connectivity, HUD ( Head-Up-Display ) and infrared cameras.

Many radio stations began streaming their content over the Internet, allowing a market expansion far beyond the reaches of a radio transmitter.

Many amplifiers are ultimately slew rate limited ( typically by the impedance of a drive current having to overcome capacitive effects at some point in the circuit ), which sometimes limits the full power bandwidth to frequencies well below the amplifier's small-signal frequency response.

Many of these lasers actually lase in several longitudinal modes at the same time, and beats between the slightly different optical frequencies of those oscillations will in fact produce amplitude variations on time scales shorter than the round-trip time ( the reciprocal of the frequency spacing between modes ), typically a few nanoseconds or less.

Many large boats emit very low frequencies which confuse the manatee and explain their lack of awareness around boats.

Many applications call for a crystal oscillator frequency conveniently related to some other desired frequency, so hundreds of standard crystal frequencies are made in large quantities and stocked by electronics distributors.

Many underlying processes, such as collision detection and network processing, run at different or inconsistent frequencies or in different physical components of a computer.

Many species can see light with frequencies outside the " visible spectrum ," which is defined in terms of human vision.

Many of the measurements of TEC are made by monitoring the two frequencies transmitted by GPS spacecraft.

Many personal radio services use frequencies allocated in the UHF band, although exact frequencies in use differ significantly between countries.

Many other combinations of voltage and utility frequency, including direct current, were formerly used, with frequencies between 25 Hz and 133 Hz and voltages from 100 to 250 V. The modern standard combinations of 230 V / 50 Hz and 120 V / 60 Hz did not apply in the first few decades of the 20th century and are still not universal.

Many tweeters are designed to reproduce frequencies as high as the upper limit of the human hearing range ( typically listed as 20 kHz ) or Compact Disc ( 22 kHz ) playback.

Many broadcasters even began to broadcast on the same frequencies as other stations, especially EPT's satellite broadcasts, many of which soon completely disappeared from the airwaves, as EPT seemed unwilling or unable to protect its frequencies.

Many of these radios have been certified for unlicensed operation ( on the 14 FRS frequencies, channels 1-14 ) under FRS rules.

Many substances are selective in their absorption of white light frequencies.

Many locomotives over the years were equipped to handle multiple voltages and frequencies as systems came to overlap or were upgraded.

Many in the United States require an FCC license, but some are certified for use on special FCC license-free business frequencies.

Many SMBus devices will however support lower frequencies.

Many NQR transition frequencies depend strongly upon temperature.

Many EIT systems are capable of working at several frequencies and can measure both the magnitude and phase of the voltage.

Many scanner clubs exist to allow members to share information about frequencies, codes and operations.

Many of these operators develop a real affection for the challenge of the band, and often continue to devote much time to it, even when they gain access to the HF frequencies after upgrading their licenses.

Many of these definitions assume a signal with components at all frequencies, with a power spectral density per unit of bandwidth proportional to 1 / f < sup > β </ sup > and hence they are examples of power-law noise.

Many radios today treat talkgroups as if they were frequencies, since they behave like such.