HF - Revision history

KJ7RRV at 01:47, 26 November 2023

2023-11-26T01:47:05Z

← Older revision		Revision as of 18:47, 25 November 2023
Line 3:		Line 3:
	In addition to amateur radio, HF is used by international shortwave broadcasting stations (3.95–25.82 MHz), government time stations, weather stations, CB radios, and some aviation radios, among other uses.		In addition to amateur radio, HF is used by international shortwave broadcasting stations (3.95–25.82 MHz), government time stations, weather stations, CB radios, and some aviation radios, among other uses.

	~~{{CC BY-SA}}~~		<hr>

	{{Wikipedia\|High frequency}}		{{Wikipedia\|High frequency}}

KJ7RRV-bot: Fix links to redirects

2023-07-02T20:32:02Z

Fix links to redirects

← Older revision		Revision as of 13:32, 2 July 2023
Line 1:		Line 1:
	'''High frequency''' ('''HF''') is the range of radio waves between 3 and 30 megahertz (MHz). Frequencies immediately below HF are denoted medium frequency ([[MF]]), while the next band of higher frequencies is known as the very high frequency ([[VHF]]) band. The HF band is a major part of the "shortwave" band of frequencies, so broadcast stations using these frequencies are often called shortwave stations. Because radio waves in this band can be reflected back to Earth by the [[ionosphere]] layer in the atmosphere – a method known as "skip" or "[[skywave propagation\|skywave]]" [[propagation]] – these frequencies are suitable for long-distance communication across intercontinental distances and for mountainous terrains which prevent [[Line-of-sight propagation\|line-of-sight]] communications. The amateur [[bands]] included in HF are 80 meters (m), 60 m, 40 m, 30 m, 20 m, 17 m, 15 m, 12 m, and 10 m. Although 6 meters is a VHF band, it also sometimes exhibits skywave propagation similar to that normally found on HF.		'''High frequency''' ('''HF''') is the range of radio waves between 3 and 30 megahertz (MHz). Frequencies immediately below HF are denoted medium frequency ([[MF]]), while the next band of higher frequencies is known as the very high frequency ([[VHF]]) band. The HF band is a major part of the "shortwave" band of frequencies, so broadcast stations using these frequencies are often called shortwave stations. Because radio waves in this band can be reflected back to Earth by the [[ionosphere]] layer in the atmosphere – a method known as "skip" or "[[skywave propagation\|skywave]]" [[propagation]] – these frequencies are suitable for long-distance communication across intercontinental distances and for mountainous terrains which prevent [[Line-of-sight propagation\|line-of-sight]] communications. The amateur [[Glossary#band\|bands]] included in HF are 80 meters (m), 60 m, 40 m, 30 m, 20 m, 17 m, 15 m, 12 m, and 10 m. Although 6 meters is a VHF band, it also sometimes exhibits skywave propagation similar to that normally found on HF.

	In addition to amateur radio, HF is used by international shortwave broadcasting stations (3.95–25.82 MHz), government time stations, weather stations, CB radios, and some aviation radios, among other uses.		In addition to amateur radio, HF is used by international shortwave broadcasting stations (3.95–25.82 MHz), government time stations, weather stations, CB radios, and some aviation radios, among other uses.

KJ7RRV-bot: License cleanup

2023-06-12T17:27:08Z

License cleanup

← Older revision		Revision as of 10:27, 12 June 2023
Line 3:		Line 3:
	In addition to amateur radio, HF is used by international shortwave broadcasting stations (3.95–25.82 MHz), government time stations, weather stations, CB radios, and some aviation radios, among other uses.		In addition to amateur radio, HF is used by international shortwave broadcasting stations (3.95–25.82 MHz), government time stations, weather stations, CB radios, and some aviation radios, among other uses.

	{{CC BY-SA}}{{Wikipedia\|High frequency}}		{{CC BY-SA}}

			{{Wikipedia\|High frequency}}

KJ7RRV-bot: Removing categories

2023-06-12T16:28:10Z

Removing categories

← Older revision		Revision as of 09:28, 12 June 2023
Line 4:		Line 4:

	{{CC BY-SA}}{{Wikipedia\|High frequency}}		{{CC BY-SA}}{{Wikipedia\|High frequency}}
	~~[[Category:Bands]]~~

KJ7RRV at 23:48, 10 June 2023

2023-06-10T23:48:13Z

← Older revision		Revision as of 16:48, 10 June 2023
Line 1:		Line 1:
	'''High frequency''' ('''HF''') is the range of radio waves between 3 and 30 megahertz (MHz). Frequencies immediately below HF are denoted medium frequency ([[MF]]), while the next band of higher frequencies is known as the very high frequency ([[VHF]]) band. The HF band is a major part of the "shortwave" band of frequencies, so broadcast stations using these frequencies are often called shortwave stations. Because radio waves in this band can be reflected back to Earth by the [[ionosphere]] layer in the atmosphere – a method known as "skip" or "[[skywave propagation\|skywave]]" [[propagation]] – these frequencies are suitable for long-distance communication across intercontinental distances and for mountainous terrains which prevent [[Line-of-sight propagation\|line-of-sight]] communications. The amateur [[bands]] included in HF are 80 meters (m), 60 m, 40 m, 30 m, 20 m, 17 m, 15 m, 12 m, and 10 m. Although 6 meters is a VHF band, it also sometimes exhibits skywave propagation similar to that normally found on HF.		'''High frequency''' ('''HF''') is the range of radio waves between 3 and 30 megahertz (MHz). Frequencies immediately below HF are denoted medium frequency ([[MF]]), while the next band of higher frequencies is known as the very high frequency ([[VHF]]) band. The HF band is a major part of the "shortwave" band of frequencies, so broadcast stations using these frequencies are often called shortwave stations. Because radio waves in this band can be reflected back to Earth by the [[ionosphere]] layer in the atmosphere – a method known as "skip" or "[[skywave propagation\|skywave]]" [[propagation]] – these frequencies are suitable for long-distance communication across intercontinental distances and for mountainous terrains which prevent [[Line-of-sight propagation\|line-of-sight]] communications. The amateur [[bands]] included in HF are 80 meters (m), 60 m, 40 m, 30 m, 20 m, 17 m, 15 m, 12 m, and 10 m. Although 6 meters is a VHF band, it also sometimes exhibits skywave propagation similar to that normally found on HF.

	In addition to amateur radio, HF is used by international shortwave broadcasting stations (3.95–25.82 MHz)~~, aviation communication~~, government time stations, weather stations, and ~~CB radio~~, among other uses.		In addition to amateur radio, HF is used by international shortwave broadcasting stations (3.95–25.82 MHz), government time stations, weather stations, CB radios, and some aviation radios, among other uses.
	~~{{WikipediaCopyright\|High_frequency\|High frequency\|1081303574\|6 April 2022\|2003-2022\|2022-2023}}~~

			{{CC BY-SA}}{{Wikipedia\|High frequency}}
	[[Category:Bands]]		[[Category:Bands]]

KJ7RRV at 17:53, 26 February 2023

2023-02-26T17:53:50Z

← Older revision		Revision as of 10:53, 26 February 2023
Line 1:		Line 1:
	'''High frequency''' ('''HF''') is the range of radio waves between 3 and 30 megahertz (MHz). Frequencies immediately below HF are denoted medium frequency ([[MF]]), while the next band of higher frequencies is known as the very high frequency ([[VHF]]) band. The HF band is a major part of the [[shortwave]] band of frequencies, so broadcast stations using these frequencies are often called shortwave stations. Because radio waves in this band can be reflected back to Earth by the [[ionosphere]] layer in the atmosphere – a method known as "skip" or "[[skywave propagation\|skywave]]" [[propagation]] – these frequencies are suitable for long-distance communication across intercontinental distances and for mountainous terrains which prevent [[Line-of-sight propagation\|line-of-sight]] communications. The amateur [[bands]] included in HF are 80 meters (m), 60 m, 40 m, 30 m, 20 m, 17 m, 15 m, 12 m, and 10 m. Although 6 meters is a VHF band, it also sometimes exhibits skywave propagation similar to that normally found on HF.		'''High frequency''' ('''HF''') is the range of radio waves between 3 and 30 megahertz (MHz). Frequencies immediately below HF are denoted medium frequency ([[MF]]), while the next band of higher frequencies is known as the very high frequency ([[VHF]]) band. The HF band is a major part of the "shortwave" band of frequencies, so broadcast stations using these frequencies are often called shortwave stations. Because radio waves in this band can be reflected back to Earth by the [[ionosphere]] layer in the atmosphere – a method known as "skip" or "[[skywave propagation\|skywave]]" [[propagation]] – these frequencies are suitable for long-distance communication across intercontinental distances and for mountainous terrains which prevent [[Line-of-sight propagation\|line-of-sight]] communications. The amateur [[bands]] included in HF are 80 meters (m), 60 m, 40 m, 30 m, 20 m, 17 m, 15 m, 12 m, and 10 m. Although 6 meters is a VHF band, it also sometimes exhibits skywave propagation similar to that normally found on HF.

	In addition to amateur radio, HF is used by international shortwave broadcasting stations (3.95–25.82 MHz), aviation communication, government time stations, weather stations, and CB radio, among other uses.		In addition to amateur radio, HF is used by international shortwave broadcasting stations (3.95–25.82 MHz), aviation communication, government time stations, weather stations, and CB radio, among other uses.
	{{WikipediaCopyright\|High_frequency\|High frequency\|1081303574\|6 April 2022\|2003-2022\|2022}}		{{WikipediaCopyright\|High_frequency\|High frequency\|1081303574\|6 April 2022\|2003-2022\|2022-2023}}

	[[Category:Bands]]		[[Category:Bands]]

KJ7RRV-bot: Bot: Cosmetic changes

2022-06-11T02:16:56Z

Bot: Cosmetic changes

← Older revision		Revision as of 19:16, 10 June 2022
Line 1:		Line 1:
	'''High frequency''' ('''HF''') is the range of radio waves between 3 and 30 megahertz (MHz). Frequencies immediately below HF are denoted medium frequency ([[MF]]), while the next band of higher frequencies is known as the very high frequency ([[VHF]]) band. The HF band is a major part of the [[shortwave]] band of frequencies, so broadcast stations using these frequencies are often called shortwave stations. Because radio waves in this band can be reflected back to Earth by the [[ionosphere]] layer in the atmosphere – a method known as "skip" or "[[skywave propagation\|skywave]]" [[propagation]] – these frequencies are suitable for long-distance communication across intercontinental distances and for mountainous terrains which prevent [[Line-of-sight propagation\|line-of-sight]] communications. The amateur [[bands]] included in HF are 80 meters (m), 60 m, 40 m, 30 m, 20 m, 17 m, 15 m, 12 m, and 10 m. Although 6 meters is a VHF band, it also sometimes exhibits skywave propagation similar to that normally found on HF.		'''High frequency''' ('''HF''') is the range of radio waves between 3 and 30 megahertz (MHz). Frequencies immediately below HF are denoted medium frequency ([[MF]]), while the next band of higher frequencies is known as the very high frequency ([[VHF]]) band. The HF band is a major part of the [[shortwave]] band of frequencies, so broadcast stations using these frequencies are often called shortwave stations. Because radio waves in this band can be reflected back to Earth by the [[ionosphere]] layer in the atmosphere – a method known as "skip" or "[[skywave propagation\|skywave]]" [[propagation]] – these frequencies are suitable for long-distance communication across intercontinental distances and for mountainous terrains which prevent [[Line-of-sight propagation\|line-of-sight]] communications. The amateur [[bands]] included in HF are 80 meters (m), 60 m, 40 m, 30 m, 20 m, 17 m, 15 m, 12 m, and 10 m. Although 6 meters is a VHF band, it also sometimes exhibits skywave propagation similar to that normally found on HF.

	In addition to amateur radio, HF is used by international shortwave broadcasting stations (3.95–25.82 MHz), aviation communication, government time stations, weather stations, and CB radio, among other uses.		In addition to amateur radio, HF is used by international shortwave broadcasting stations (3.95–25.82 MHz), aviation communication, government time stations, weather stations, and CB radio, among other uses.
			{{WikipediaCopyright\|High_frequency\|High frequency\|1081303574\|6 April 2022\|2003-2022\|2022}}

	[[Category:Bands]]		[[Category:Bands]]
	~~{{WikipediaCopyright\|High_frequency\|High frequency\|1081303574\|6 April 2022\|2003-2022\|2022}}~~

KJ7RRV: Created page with "'''High frequency''' ('''HF''') is the range of radio waves between 3 and 30 megahertz (MHz). Frequencies immediately below HF are denoted medium frequency (MF), while the next band of higher frequencies is known as the very high frequency (VHF) band. The HF band is a major part of the shortwave band of frequencies, so broadcast stations using these frequencies are often called shortwave stations. Because radio waves in this band can be reflected back to Ear..."

2022-05-08T15:54:00Z

Created page with "'''High frequency''' ('''HF''') is the range of radio waves between 3 and 30 megahertz (MHz). Frequencies immediately below HF are denoted medium frequency (MF), while the next band of higher frequencies is known as the very high frequency (VHF) band. The HF band is a major part of the shortwave band of frequencies, so broadcast stations using these frequencies are often called shortwave stations. Because radio waves in this band can be reflected back to Ear..."

New page

'''High frequency''' ('''HF''') is the range of radio waves between 3 and 30 megahertz (MHz). Frequencies immediately below HF are denoted medium frequency ([[MF]]), while the next band of higher frequencies is known as the very high frequency ([[VHF]]) band. The HF band is a major part of the [[shortwave]] band of frequencies, so broadcast stations using these frequencies are often called shortwave stations. Because radio waves in this band can be reflected back to Earth by the [[ionosphere]] layer in the atmosphere – a method known as "skip" or "[[skywave propagation|skywave]]" [[propagation]] – these frequencies are suitable for long-distance communication across intercontinental distances and for mountainous terrains which prevent [[Line-of-sight propagation|line-of-sight]] communications. The amateur [[bands]] included in HF are 80 meters (m), 60 m, 40 m, 30 m, 20 m, 17 m, 15 m, 12 m, and 10 m. Although 6 meters is a VHF band, it also sometimes exhibits skywave propagation similar to that normally found on HF.

In addition to amateur radio, HF is used by international shortwave broadcasting stations (3.95–25.82 MHz), aviation communication, government time stations, weather stations, and CB radio, among other uses.

[[Category:Bands]]
{{WikipediaCopyright|High_frequency|High frequency|1081303574|6 April 2022|2003-2022|2022}}