They're on a 1941 treaty Canadian clear channel so I assume they're
rather directional. Although I'm not sure who uses it west of Toronto.

http://www.pappastv.com/pressdetail.php?id=97&prYr=2007

- 73-Year-Old Heritage Radio Station Moves from Modesto to San
Francisco -

- Station Begins Final Phase of Testing at Alameda County Transmitter
Site
Thursday, February 1, 2007 -

- On-Air Testing Features a Tribute to “The San Francisco Sound” -


San Francisco, California - - Something old is new again, as one of
Northern California’s pioneer radio stations, KTRB-AM 860, makes its
historic Bay Area debut by bringing “The San Francisco Sound” back to
the nation’s fourth-largest radio market beginning this Thursday,
February 1, 2007.

KTRB-AM 860 will sign-on at midnight on February 1, and beginning at
6:00 a.m. that day, the station will play continuous music reprising
the late 60s and early 70s heyday of “The San Francisco Sound.”

“The San Francisco Sound” refers to rock music performed live and
recorded by San Francisco-based artists and groups from the mid-1960s
to the early 1970s. KTRB-AM 860 will showcase seminal Bay Area bands
such as The Beau Brummels, The Syndicate of Sound, The Grateful Dead,
Jefferson Airplane, Quicksilver Messenger Service, Big Brother & The
Holding Company, as well as Santana, Creedence Clearwater Revival, and
Journey.

KTRB-AM 860 Vice President & General Manager Jim P. Pappas said, “Our
sign-on in the Bay Area is the culmination of three decades of
dreaming, planning, and hard work by the best and brightest from
inside and outside our company. KTRB-AM 860 represents the genesis of
our company’s more than 50-year California-based broadcast tradition.
It was KTRB that inspired the three Pappas Brothers to become
broadcasters. We are thrilled to own and operate a 50,000 Watt
blowtorch that will serve the millions of residents in San Francisco,
Oakland, San Jose and the entire Bay Area, just as KTRB-AM 860 has
served generations of Californians since its founding in 1933.”

KTRB-AM 860’s permanent format will commence March 1, 2007. While
plans have not been disclosed, Pappas said, “KTRB will bring a fresh
sound to the Bay Area to add diversity to the choices available to the
public. KTRB will entertain and inform with fresh, lively content,
the likes of which the public does not now have available.”

About KTRB

KTRB-AM 860 is one of the oldest radio stations on the West Coast,
having served the San Joaquin Valley and surrounding areas since the
early days of the medium. Until recently, the station was licensed to
Modesto, California. In 2003, the Federal Communications Commission
authorized the relocation of KTRB's transmitter site to the Bay Area.
On February 1, the station will return to the air licensed to San
Francisco and serving the entire San Francisco-Oakland-San Jose radio
market. Broadcasting on a Canadian Clear Channel frequency with
50,000 Watts of power day and night - the highest power allowed in the
United States - KTRB has been engineered to cover a huge geographic
area. San Francisco is the fourth-ranked radio market in the United
States and the number-one AM radio market in the nation.

KTRB’s storied history began in 1933, when original owners T.R.
McTammany and Bill Bates (the “TR” and “B” in KTRB) established the
station as the first commercial broadcast outlet in Modesto. Through
the years, KTRB has served as the launch pad for the careers of
Country music notables such as The Maddox Brothers and Rose, and
Chester Smith, and the station was the dominant radio voice in the San
Joaquin Valley for decades. In 1973, brothers Pete, Mike, and Harry
Pappas led a group of investors in purchasing KTRB from the Bates
estate, and the station has remained under Pappas family ownership
ever since.

KTRB’s studios are located at 1700 Montgomery Street in San Francisco,
overlooking The Embarcadero. KTRB is owned by Pappas Radio of
California, an affiliated company of Pappas Telecasting Companies, the
largest privately-held, commercial television broadcaster in the
United States.





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