Free Frequency Allocations
Authors
Description
The electromagnetic spectrum is a vital part of our environment. Measures of radio frequency emissions from natural phenomena enable both practical applications, such as weather predictions and studies of the changing of Earth?s climate here at home, and reveal the physical properties of cosmic sources. The spectrum is therefore a resource to be used wisely now and to be protected for future generations.
Topics
Publication Info
280 pages | 8 x 11
Paperback
ISBN: 978-0-309-37659-4
DOI: 10.17226/21774
Recent Posts
K9EID – Bob Heil To Receive Honorary Doctorate From University of Missouri
K9EID – Bob Heil To Receive Honorary Doctorate From University of Missouri – Congratulations Bob! Read Full Article: Read more
ARRL Foundation Accepting Scholarship Applications
The ARRL Foundation Scholarship program is now accepting applications from eligible applicants. The deadline to submit applications is January 31, 201... Read more
472kHz Antenna Calculator
This tool calculates the antenna capacitance and radiation resistance of small vertical monopoles at 475 kHz. It is by no means a replacement for ante... Read more
Ham Radio Deluxe Software from Hamcom 2019
“I was privileged to catch up with Mike, WA9PIE, from Ham Radio Deluxe at this year’s Texas Hamcom. He discusses some new features of his... Read more
More than 12,000 Register Early for QSO Today Virtual Ham Expo
More than 12,000 have registered to attend the first QSO Today Virtual Ham Expo, August 8 – 9, QSO Today host Eric Guth, 4Z1UG, said this week. “Since... Read more
Ominous Dark Hole on the Sun, Two Solarstorms & Marathon Aurora: Solar Storm Forecast
The Sun is keeping aurora photographers busy and amateur radio operators frustrated this week as it continues to rattle Earth’s shield with fast... Read more
HRN 217: HOAs Oppose Parity – ARRL Fights Back on HamRadioNow
HOA’s are waking up to the Amateur Radio Parity Act, encouraging their members/residents to fight it by, let’s say ‘stretching the t... Read more
K1N Navassa DXpedition DVD Official Trailer
K1N Navassa In early 2015, a group of 15 intrepid DXers put Navassa Island on the air for the first time since 1993. In that time, Navassa rose to the... Read more
TYT TH-9000D – VHF
The TYT TH-9000 is the Amateur compliant transceiver, with commercial grade features. This radio can be used on the BC Forest Logging Roads, and can... Read more
“Automatic Gain Control” is the topic of the latest episode of the “ARRL The Doctor is In” podcast
“Automatic Gain Control” is the topic of the latest (February 1) episode of the “ARRL The Doctor is In” podcast. Listen…and learn! More than a... Read more
Low Cost HF Portable Antennas
“HF Mobile whips can make great portable antennas. Maybe you already have some. A couple of single band models may cover your needs. Here we loo... Read more
Five Band Indoor Magnetic Loop Aerial by G4IZH
This aerial covers the 20, 17, 15, 12 and 10 metre bands and is made from a single 3 metre length of 22 mm copper tube cut into 4 pieces of equal leng... Read more
CWSpeed IOS App – The fun and efficient way of learning morse code
Description The fun and efficient way of learning morse code! Features: – Uses Koch’s training method (the most efficient known to date)... Read more
New Nepal Earthquake May 12
Share on twitterShare on facebookShare on emailMore Sharing Services New Nepal Earthquake May 12 Amateur radio emergency nets are reported to have b... Read more
Warning: file_get_contents(https://plusone.google.com/_/+1/fastbutton?url=https%3A%2F%2Fqrznow.com%2Ffree-frequency-allocations-handbook%2F): failed to open stream: HTTP request failed! HTTP/1.0 404 Not Found in /home/qrznow/public_html/wp-content/themes/goodnews5/framework/functions/posts_share.php on line 151
