Difference between revisions of "HF"
From The RadioReference Wiki
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Some FAQs about the terminology you will hear used; | Some FAQs about the terminology you will hear used; | ||
| + | * [http://www.angelfire.com/mb/amandx/ AMANDX] | ||
| + | * This site has many basic articles on antennas, propagation, schedules and much more. Highly recommended reading | ||
* [http://www.dxing.com/modesand.htm Commonly Used Modes] | * [http://www.dxing.com/modesand.htm Commonly Used Modes] | ||
* [http://www.dxing.com/tuning.htm Frequency Ranges and Uses] | * [http://www.dxing.com/tuning.htm Frequency Ranges and Uses] | ||
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* [http://www.monitoringtimes.com/html/glossary.html Glossary of Terminology] | * [http://www.monitoringtimes.com/html/glossary.html Glossary of Terminology] | ||
* [http://www.monitoringtimes.com/html/dynrange.html Receiver Dynamic Range] | * [http://www.monitoringtimes.com/html/dynrange.html Receiver Dynamic Range] | ||
| + | * [http://www.radio-electronics.com/info/receivers/synchdet/sync_det.php Synchronous Modulation/Detection] | ||
* [http://www.dxing.com/radterms.htm Terms and Abbreviations] | * [http://www.dxing.com/radterms.htm Terms and Abbreviations] | ||
* [http://www.dxing.com/utcgmt.htm UTC and GMT] | * [http://www.dxing.com/utcgmt.htm UTC and GMT] | ||
Revision as of 20:31, 18 September 2005
"HF" is an abbreviation for "High Frequency." See Spectrum.
High frequency communications occur in the 0.5-30 MHz band.
Many of the FAQs linked here are courtesy of DXing.Com from Universal Radio of Reynoldsburg Oh. and the Monitoring Times website.
Contents
AM (MW) Band
540-1700 Khz
- Intro to AM(MW) DXing
- See our SWL Broadcast page for clubs devoted to this topic
- Also check out the RadioIntel References page for more information
- Look for the topic 'MW (AM) & FM' for more links on the subject
HF Amateur Radio Bands
160 Meters (1.800-2.000 MHz)
80 Meters (3.500-4.000 MHz)
40 Meters (7.000-7.300 MHz)
30 Meters (10.100-10.150 MHz)
NOTE US Amateurs are limited to 200w PEP, and must use CW or digital modes (no voice). This is a shared band, and hams must avoid causing interference to other users. There is an encrypted RTTY station (assumed by many to be the US Navy) in the low portion of this band.
20 Meters (14.000-14.350 MHz)
17 Meters (18.068-18.168 MHz)
15 Meters (21.000-21.450 MHz)
12 Meters (24.890-24.990 MHz)
10 Meters (28.000-29.700 MHz)
NOTE In July 2003, US amateurs (Generals and above) were given permission to use 5 specific frequencies in the 5 mhz region. This came with several restrictions for mode and output power. This FAQ outlines the frequencies and restrictions.
- Here's a very comprehensive list of amateur nets, updated regularly, edited by John Norfolk
- Nets to You
- And for storm-related nets, see...
- Hugh Stegman's Hurricane Frequency List
- Bill Snyder's Hurricane Frequency List
Some popular ham websites:
Citizen's Band
- See the Citizens Band page for frequencies and channels
- REACT
- The best known public service users of CB (tho they use other ranges, too)
Short Wave Broadcast
What is short wave broadcasting? These FAQs will help explain it;
Some FAQs about the terminology you will hear used;
- AMANDX
- This site has many basic articles on antennas, propagation, schedules and much more. Highly recommended reading
- Commonly Used Modes
- Frequency Ranges and Uses
- Frequency vs.Wavelength
- Glossary of Terminology
- Receiver Dynamic Range
- Synchronous Modulation/Detection
- Terms and Abbreviations
- UTC and GMT
- Understanding Receiver Selectivity
- Understanding Receiver Sensitivity
- Understanding Specifications
- Take a look at the SWL Broadcast page for many related links
and there's other kinds of short wave broadcasting, too...
Utility Monitoring
The best way to describe Utility (Ute) monitoring is to use negative logic; it excludes everything defined above. Not CB, Amateur nor Short Wave Broadcast. This includes, but is not limited to, aeronautical stations, digital signals (outside of the specified amateur bands), military, maritime, federal and other users. See our Utility Monitoring page for more information and links.