Home |
Search |
Today's Posts |
#9
|
|||
|
|||
Scope of the term "Amateur"
On 6/29/2016 10:59 AM, Jeff Liebermann wrote:
On Tue, 28 Jun 2016 23:41:21 -0400, rickman wrote: The term "amateur" is often applied to people who have obtained a license to use radio equipment for communications. Is this term inclusive of those who don't obtain a license but use receivers for various uses? I believe the term was used to describe anyone that indulges in RF but does NOT charge for their efforts. The FCC wanted to distinguish between commerical (for profit) services, and amateur (not for profit) services. For reception only, the term was "SWL" or short wave listener. I guess that also applies to only listening on just about any frequency from ELF to satellite communications. https://en.wikipedia.org/wiki/Shortwave_listening No license required to just listen. I have been looking into design of receivers in the LF to ELF frequency ranges. Is this part of "amateur" radio? Mostly yet. However, some bands do not require a license and operate under FCC Part 15: http://www.lwca.org https://en.wikipedia.org/wiki/LowFER http://www.arrl.org/lf-low-frequency https://hackaday.io/project/6882-lowfer-transmitter-for-your-arduino etc... Very interesting. I see a difference between the ARRL article and the Hackaday page. ARRL says the power limit on the US 1750 meter "free band" is 1 W into the "transmitter's final stage" while the Hackaday page says the limit is 1 W into the "feedline" and antenna system. -- Rick C |
Thread Tools | Search this Thread |
Display Modes | |
|
|