AMATEUR RADIO

Amateur radio

From Wikipedia, the free encyclopedia

A steel amateur radio antenna mast

Amateur radio, often called ham radio, is both a hobby and a service in which participants, called "hams," use various types of radio communications equipment to communicate with other radio amateurs for public service , recreation and self-training.[1]

Amateur radio operators enjoy personal (and often worldwide) wireless communications with each other and are able to support their communities with emergency and disaster communications if necessary, while increasing their personal knowledge of electronics and radio theory. An estimated six million people throughout the world are regularly involved with amateur radio.[2]

The term " amateur " is not a reflection on the skills of the participants, which are often quite advanced; rather, "amateur" indicates that amateur radio communications are not allowed to be made for commercial or money-making purposes.


On-Line HF Propagation Prediction

The propagation of radio signals in the medium frequency band (MF: 300kHz-3MHz), the high frequency band (HF: 3MHz-30MHz) and even the very high frequency band (VHF: 30MHz-300MHz) is largely influenced by the condition of our sun and, through the emissions of our sun, also the earth magnetic field that captures these.

Because of its importance for certain radio communications, a number of observatories continuously monitor the condition of the sun and the geomagnetic field. Click on the weblink below  to get an instant view on how propagation conditions are right now.

http://www.stroobandt.com/propagation/


If you are completely new to the topic of shortwave propagation, then have a look at
AE4RV's HF Radio Propagation Primer (Flash movie!).

Propagation Primer: a simple tutorial on HF (HIGH FREQUENCY or SHORTWAVE) Radio Propagation

Skriv en kommentar: (Klikk her)

123hjemmeside.no
Antall tegn tilbake: 160
OK Sender...
Se alle kommentarer

| Svar

Nyeste kommentarer

28.06 | 12:56

Tack för qso 2014-06-28 på 3695 kc. Det var mitt första qso på kortvåg, ber om ursäkt för en något valhänt hantering av micken. 73 de SA4CMF.

...
10.11 | 17:03

Hei Per Dagfinn.
Har et spørsmål : Har dere noe ferdig pensum som dere bruker til amatørkurset. Vi har tenkt å få igang et kurs her i Gudbrandsdalen.

...
12.10 | 00:25

Hi Willem,
VHF repeater: 145750 kHz
11 m: 27395 FM ?? maybe
60 m: 5380 kHz USB
80 m : 3702 kHz +/-

...
07.06 | 03:20

Var bare inne å titte Per-Dagfinn 73 fra Moss de LA1YKA

...
Du liker denne siden
Hei!
Prøv å lage din egen hjemmeside som jeg.
Det er enkelt, og du kan prøve det helt gratis.
ANNONSE