family, or whole club involved. Winter Field Day is open to participants worldwide. Amateur radio operators may use frequencies on the HF, VHF, or UHF
HAM 无线电频率分布图
Kelly Lindman (5B4AIT) is the developer and founder of HamSphere, who created the platform to provide a virtual space for amateur radio operators to connect worldwide. How does HamSphere work? HamSphere uses software-defined radio (SDR) technology to simulate radio equipment and frequencies on...
The SWLing Post now participates in two affiliate advertising programs with two large retailers that still sell shortwave radios, the Amazon Services LLC Associates Program and the eBay Partnership, designed to provide a means for sites like ours to earn advertising fees by advertising and linking to...
If you have been thinking about getting on to 900MHz (33cm) Ham Bands or are active but want to find out more, this is the page is where you want to be. I don't claim to be an expert in this area but I will share what I have learned, what I now know, wha
Ansgar (DG2KBC) at Make More Miles on VHF offers three status graphs for EME, Europe Es and Meteor Scatter. Elmer (PH5E) at Rig Reference offers a widget that indicates which current HF bands are open. Claudio (IW1QLH) at HRDLOG offers a gadget that indicates current HF activity, solar...
All frequencies are shared. No frequency is assigned for the exclusive use of any amateur station. Station control operators cooperate in selecting transmitting channels to make the most effective use of the frequencies. They design, construct, modify, and repair their stations. The FCC equipment au...
All frequencies are shared. No frequency is assigned for the exclusive use of any amateur station. Station control operators cooperate in selecting transmitting channels to make the most effective use of the frequencies. They design, construct, modify, and repair their stations. The FCC equipment au...
Icom AH-4 Universal Tuner. The Official K9EQ Unofficial Icom AH-4 Tuner Page. It’s not just about working all bands. It’s also about building practical, cheap, antennas that you can design and put together with stuff from Home Depot. Find out why 50 ohms and aluminum are evil. Did...
and a bit thanks to the current officers of the RVRN. Posted by K9BJR - 2-11-2025 _ 10:54 AM CST I don't have any free frequencies for today's 20m net at my home QTH. The 20m band in the General portion (where we run these nets) is rammed solid here. ...