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unusual facts about kHz



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107.8 Radio Jackie

It changed frequency several times, settling on 1332 kHz in 1978 when the new European frequency guidelines were implemented.

1993 in radio

30 April: Virgin Radio, originally called Virgin 1215, was launched nationally in the United Kingdom on 1215 kHz at 12.15pm by Richard Branson.

2KA

The new frequency, 1476 kHz, enabled programmers to extend the audience reach to Penrith, and draw revenue from businesses in the area.

2XXfm

It took over the operation of the former Australian National University student radio station in 1976, broadcasting as 2XX on 1008 kHz AM from two studios at the Drill Hall Gallery in Acton.

850 AM Montreal

The new French-language sports/talk radio format will broadcast from facilities on Île Perrot on 850 kHz as a class B station, with a power of 50,000 watts daytime and 22,000 watts nighttime.

Advanced Audio Coding

AAC supports inclusion of 48 full-bandwidth (up to 96 kHz) audio channels in one stream plus 16 low frequency effects (LFE, limited to 120 Hz) channels, up to 16 "coupling" or dialog channels, and up to 16 data streams.

Airband

Some types of navaids, such as Non-directional beacons and Distance Measuring Equipment, do not operate on these frequencies; in the case of NDBs the Low frequency and Medium frequency bands are used between 190–415 kHz and 510–535 kHz.

Barry Reisman

Barry Reisman is the host of The Barry Reisman Show, currently an hour-long, Monday-Friday radio program playing on WWDB, 860 kHz AM, in Philadelphia, featuring klezmer and other Jewish music.

Bioacoustics

Katydid crickets, for example, communicate by sounds with frequencies higher than 100 kHz, far into the ultrasound range.

CFB Trenton

Trenton Military VOLMET Military Aeronautical Communications System (MACS) on 6754 and 15,034 kHz USB call sign "CHR"

CJCJ-FM

Ltd. received approval from the Canadian Radio-television and Telecommunications Commission (CRTC) to operate two low-power AM transmitters at Plaster Rock on 990 kHz (40 watts), and Perth/Andover on 1140 kHz with 40 watts.

CJMS

It broadcasts on 1040 kHz with a daytime power of 10,000 watts and a nighttime power of 5,000 watts as a class B station, using a directional antenna with the same directional pattern day and night to protect WHO in Des Moines, Iowa.

The call sign CJMS was chosen as the original plan was to use the 1280 kHz frequency, which was allocated instead by the Canadian Radio-television and Telecommunications Commission (CRTC) to multilingual station CFMB.

DWPR

DWPR-AM, 1296 Poweradio (1296 kHz) in Dagupan, Philippines

DZHH

DZHH (1566 kHz Metro Manila) Radyo ng Hukbong Himpapawid (Radio of the Air Forces)" was an AM station of the Philippine Air Force.

Flicker noise

MOSFETs have a higher fc (can be in the GHz range) than JFETs or bipolar transistors which is usually below 2 kHz for the latter.

Gale warning

In the United Kingdom, the Meteorological Office issues gale warnings, and radio broadcasts them four times a day at fixed times on 198 kHz in the Shipping Forecast, part of the broadcast output of BBC Radio 4.

Gizmo5

GSM — fixed bit rate, not loss tolerant, narrow band (8 kHz sampling rate)

Grupo RBS

Rádio Gaúcha Porto Alegre, on frequency 600 kHz FM and on frequency 93,7 MHz FM; Santa Maria, on frequency 105,7 MHz FM; Caxias do Sul, on frequency 102,7 MHz FM

Haijiu-class submarine chaser

Original SJD-3 sonar on earlier Type 037 class submarine chaser is replaced by a 13 kHz (2 frequency ranges) French Thomson Sintra SS-12/DIP 12 hull mounted (HM)/variable depth sonar (VDS).

Katherine Albrecht

Albrecht is the host of a two-hour radio talk show on Saturday afternoons on WSMN (1590 kHz) in Nashua.

KDR 444

FM with a bandwidth of 16 kilohertz (25 kHz in Norway) is used.

KFLC

KFLC calls were once used in Dallas at 1330 kHz in 1924 for a temporary station set up at the State Fair of Texas.

KIXL

KIXL is a Catholic talk radio station in Del Valle, Texas, broadcasting to the Austin-Round Rock area of Texas on 970 kHz AM.

KWWL

KWLO, an AM radio station (1330 kHz) licensed to Waterloo, Iowa, United States, which held the callsign KWWL from 1947 to 1980

Lavalier microphone

A peak of approximately 6 dB at 6-8 kHz is considered beneficial for compensating loss of clarity when chest-mounted, as is a peak of a few decibels at 10–15 kHz when mounted in the hair above the forehead.

NRK

NRK's mediumwave transmitter at Kvitsøy on 1314 kHz used to be widely heard internationally and was one of the most commonly heard trans-Atlantic DX signals in eastern North America.

Option Musique

Until 6 December 2010, it was also available on medium wave (765 kHz) through the Sottens transmitter.

PCSat2

It also carried a PSK31 Linear/FM Satellite translator accepting 3 kHz SSB channel in the 10 meter band at 29.4 MHz and repeating that in baseband on a VHF or UHF narrow-band FM downlink.

Pirate radio in Australia and New Zealand

On 5 October, the Australian Communications and Media Authority reported that it shut down an unlicensed AM radio station operating on 1485 kHz from Chadstone following a complaint.

PMR446

Analogue PMR uses eight FM channels separated by 12.5 kHz from each other.

Radio Monique

Monique however entered into an agreement with Ronan O'Rahilly of Radio Caroline to rent airtime on 963 kHz from October 1984.

Rádio Universitária 1570 kHz

Rádio Universitária AM 1570 kHz ("University Radio 1570 kHz") is the official AM radio station owned and operated by the Brazilian famed southwestern university Universidade Federal de Itajubá.

Scottsdale, Tasmania

Scottsdale is served by television stations ABC TV, SBS, Southern Cross Tasmania, WIN Television, TDT and radio stations 7SD 540 kHz and Sea FM 99.7 MHz, and Launceston newspaper The Examiner and local newspaper The North-East Advertiser.

Super Nintendo Entertainment System technical specifications

The DSP generates a 16-bit waveform at 32 kHz by mixing input from 8 independent voices and an 8-tap FIR filter typically used for reverberation.

Warsaw radio mast

It was located in Konstantynów, Gąbin, Poland, and was used by Warsaw Radio-Television (Centrum Radiowo-Telewizyjne) for longwave radio broadcasting on a frequency of AM-LW (long wave) 227 kHz before 1 February 1988 and AM-LW (long wave) 225 kHz afterwards.

WBTC

Unlike most radio stations in the Northeastern United States assigned to the clear-channel frequency of 1540 kHz (all of whom must sign off at sunset to protect KXEL in Waterloo, Iowa and/or ZNS-1 in Nassau, Bahamas) WBTC has 5 watts of night power assigned, but signs off nightly at 9:00 p.m., give or take live sports play-by-play events.

WFBM

WNDE, an AM radio station (1260 kHz) licensed to serve Indianapolis, Indiana, United States, which held the call sign WFBM from 1924 to 1973

WGU-20

Operating 24 hours a day on a longwave frequency of 179 kHz from Chase, Maryland, WGU-20's programming consisted of pre-recorded announcements and time checks.

WJDM

WJDM AM (1530 kHz, "Radio Cantico Nuevo") is a radio station licensed to Elizabeth, New Jersey (the seat of Union County) and the surrounding municipalities and broadcasts a Spanish Christian format.

WKKP

The station was originally WZAL and was assigned to 1540 kHz and was owned by Dallas Tarkenton (older brother of Fran Tarkenton), broadcasting until it was purchased by DeVan-Moore Communication, Inc. in 1980.

WPBS

WPBS (AM) an AM radio station operating at 1040 kHz in Conyers, Georgia

WQXR

WQEW, an AM radio station on 1560 kHz licensed to New York City, New York, United States, which held the WQXR callsign from December 1936 to November 1992

WRBC

The signal could be heard at 640 kHz AM in all campus buildings, except the infirmary.

WTKT

WTKT first signed on the air on March 16, 1929 as WHP on 1430 kHz with the city of license listed as Lemoyne, Pennsylvania.

WULM

It is a repeater of KJMJ 580 kHz in Alexandria, Louisiana, the originating English-language station of Radio Maria USA.

WWKY

From 1989 to 2001, the call letters WWKY were assigned to Louisville, Kentucky at 790 kHz, which had formerly been WAKY.

Zettabyte

Mark Liberman calculated the storage requirements for all human speech ever spoken at 42 zettabytes if digitized as 16 kHz 16-bit audio.


see also