View source for KRDX

{{short description|Radio station in Tucson, Arizona}}
{{Infobox radio station
| name               = KRDX
| logo               =
| city               = [[Corona de Tucson, Arizona]]
| area               = [[Tucson metropolitan area]]
| branding           = ''103.7 The Fox''
| frequency          = {{Frequency|103.7|MHz}}
| translator         = {{Radio Relay|96.7|K244EI|Corona de Tucson}}
| repeater           =
| airdate            = {{Start date and age|1977}} (as KAYN at 98.3 in Nogales)
| format             = [[Oldies]]
| language           =
| erp                = 910 [[watt]]s
| haat               = {{convert|145|m|ft|sp=us}}
| class              = A
| licensing_authority = [[Federal Communications Commission|FCC]]
| facility_id        = 36023
| coordinates        = <!-- {{coord|}} -->
| callsign_meaning   =
| former_callsigns   = {{ubl|KAYN (1977–1991)|KLCR (1991–1995)|KZNO (1995–2005)}}
| former_frequencies = {{ubl|98.3 MHz (1976–2006)|98.5 MHz (2006–2020)}}
| affiliations       =
| owner              = Ted Tucker
| licensee           = Desert West Air Ranchers Corporation
| sister_stations    =
| webcast            =
| website            =
}}
'''KRDX''' (103.7 [[Hertz|MHz]]) is a [[commercial radio|commercial]] [[FM radio|FM]] [[radio station]], [[city of license|licensed]] to [[Corona de Tucson, Arizona]], and serving the [[Tucson metropolitan area]].  It is owned by Ted Tucker, with the license held by Desert West Air Ranchers Corporation.  The station airs an [[oldies]] [[radio format]], known as "103.7 The Fox."
KRDX has an [[effective radiated power]] (ERP) of 910 [[watt]]s as a [[list of broadcast station classes|Class A]] FM station.<ref>{{Cite web|url=https://radio-locator.com/cgi-bin/finder?sr=Y&s=C&call=krdx&nav=home|title=KRDX-FM 103.7 MHz - Corona de Tucson, AZ|website=radio-locator.com}}</ref>  The [[transmitter]] is southwest of Tucson, in the Santa Rita Foothills, near [[Vail, Arizona|Vail]].  It also broadcasts on 250-watt [[FM translator]] K244EI at 96.7&nbsp;MHz.<ref>[https://radio-locator.com/info/K244EI-FX Radio-Locator.com/K244EI]</ref>
==History==
The station [[sign-on|signed on]] the air in {{Start date and age|1977}}.  Its original [[call sign]] was KAYN, broadcasting on 98.3&nbsp;MHz as the first FM radio station in [[Nogales, Arizona]].  It was owned by Norman and Eva Graham and broadcast with 215 watts. The [[construction permit]] was granted over the objections of [[KFBR (defunct)|KFBR]], the only other American radio station serving the [[U.S.-Mexican border|border area]].  The station was sold to Roadrunner Broadcasting in 1988. KZLZ Broadcasting bought the station, by then known as KLCR, in 1994.
In 1999, after two additional sales, Ted Tucker bought the station, then known as KZNO.  In April 2002, Tucker was approved to move KZNO from 98.3 in Nogales to 98.5 in [[Vail, Arizona]], increasing its ERP to 3,900 watts.
According to a [[U.S. Federal Communications Commission]] (FCC) filing in 2006, the station was unable to maintain a reliable power supply.<ref>http://fjallfoss.fcc.gov/prod/cdbs/forms/prod/getattachment_exh.cgi?exhibit_id=414003{{dead link|date=May 2022}}</ref>  The only access to the transmitter site was via helicopter, and the station was powered solely by solar panels and wind turbines. The filing with the FCC asked to operate at less than licensed power or erratically based on power availability.  The application was accepted by the FCC, but not approved.
In June 2010, KRDX was granted an FCC construction permit to change the [[city of license]] to [[Corona de Tucson, Arizona]], and move to 103.7&nbsp;MHz, which would end its long-time interference with KOHT. The station was licensed for the new frequency and community of license effective October 9, 2020. The 103.7 transmitter now has a more consistent signal throughout all of Tucson.
==See also==
* [[List of radio stations in Arizona]]
==References==
<references />
==External links==
* {{FM station data|742899|KRDX}}
* {{FCC letter|letterid=71119|hcards=yes|callsign=KRDX}}
{{Portal bar|Arizona|Radio}}
{{Tucson Radio}}
{{Oldies Radio Stations in Arizona}}
{{coord|31.928|N|110.633|W|type:landmark_region:US_source:FCC|display=title}}
[[Category:Radio stations in Tucson, Arizona|RDX]]
[[Category:Radio stations established in 1976]]
[[Category:1976 establishments in Arizona]]
[[Category:Oldies radio stations in the United States]]