Yamanashi Broadcasting System

JOJF-DTV
	Yamanashi Prefecture; Japan;
City	Kōfu
Channels	Digital: 25 (UHF); Virtual: 4;
Branding	YBS Yamanashi Broadcasting; YBS Television
Programming
Language	Japanese
Affiliations	Nippon News Network and Nippon Television Network System
Ownership
Owner	Yamanashi Broadcasting System Inc.
History
First air date	December 20, 1959
Former call signs	JOJF-TV (1959–2011)
Former channel numbers	Analog:; 5 (VHF, 1959–2011)
Technical information
Licensing authority	MIC

JOJF
	Kōfu; Japan;
Broadcast area	Yamanashi Prefecture
Frequency	90.9 MHz
Branding	YBS Radio
Programming
Language	Japanese
Format	Talk, Sports
Affiliations	JRN/NRN
Ownership
Owner	Yamanashi Broadcasting System, Inc.
History
First air date	July 1, 1954
Former frequencies	765 kHz (until 2026)
Call sign meaning	Japan/Mount Fuji
Technical information
Licensing authority	MIC
Power	5 kW (AM); 1 kW (FM)

Yamanashi Broadcasting System Inc.
	Yamanashi Broadcasting System Headquarters in Kofu, Yamanashi designed by Kenzō Tange
Native name	株式会社山梨放送
Romanized name	Kabushikigaisha Yamanashihōsō
Formerly	Radio Yamanashi Co., Ltd. (March 25, 1954 – October 31, 1961)
Company type	Kabushiki gaisha
Industry	Television and Radio broadcasting
Founded	March 25, 1954
Headquarters	2-6-10 Kitaguchi, Kofu City, Yamanashi Prefecture, Japan
Key people	Eiichi Noguchi; (President and CEO)
Website	www.ybs.jp
	Footnotes / references; Data from its Corporate Profile

Yamanashi Broadcasting System (株式会社山梨放送, Kabushiki-gaisha Yamanashi Hōsō), also known as YBS, is a Japanese broadcast network based in Kōfu, Yamanashi. Its radio division, callsign JOJF is an affiliate of the Japan Radio Network and the National Radio Network while its television division, callsign JOJF-DTV (channel 4) is an affiliate of the Nippon News Network and the Nippon Television Network System. Both stations serve Yamanashi Prefecture with its studios and headquarters being located in the Shinkonya District of Kōfu.