Source:http://www.ab4oj.com/
Antenna
Another Difficult Antenna Situation
Tim, W4FTP, asks how he can use some tall but skinny trees along the back of his property as part of his antenna system. We take a look, and your comm... Read more
Ham Radio experiment – End fed half wave antenna sloper vs flat horizontal orientation
https://youtu.be/BgEtQOS8mY0 Read more
App - Mobile
SmartSDR for iOS v3.9.12 Now Available
Marcus, DL8MRE announces that release of SmartSDR for iOS v3.9.12 is now available for download or update from the Apple App Store. SmartSDR is a full... Read more
SignalID – Automatic Radio Signal Identification for Android
There’s an incredible amount of radio signals. It’s impossible to know them all, let alone recognize them. So why not get help from Signal... Read more
Digital Modes
FT8DMC 3rd Anniversary-Activity Days 2020
To commemorate our 3rd anniversary, special event stations will be on air during the FT8DMC Activity Days from 1. to 31. July 2020. All stations will... Read more
Equipment
$760 Ham Radio Shack From Aliexpress?
$760 Ham Radio Shack From Aliexpress? Read more
Radioddity Raddy RW3 Go-Kit-Type Radio AM/FM/WX, Phone Charger and More
Radioddity Raddy RW3 Go-Kit-Type Radio AM/FM/WX, Phone Charger and More [Small Size But All-Purpose] Unlike other FM/AM/NOAA radios, the RW3 is a Blue... Read more
News
ARRL Interview Explains Background of Ham Radio in Space Film Short
Josh Tanner, the Australian filmmaker who produced the thriller Decommissioned by Perception Pictures, has explained how he came up with the idea to... Read more
Amateur Radio Helping to Fill Earthquake Report “Donut Holes”
An article describing how radio amateurs can help fill the information “donut hole” by providing post-earthquake “did you feel it” (DYFI) reports via ... Read more
Propagation
A direct hit! The solarstorm our Sun launched is confirmed to be Earth-directed!
A direct hit! The #solarstorm our #Sun launched is confirmed to be Earth-directed! NASA prediction models show impact early February 23. Because Earth... Read more
The K7RA Solar Update
Tad Cook, K7RA, Seattle, reports: Sunspots are gone, with none seen since February 3. Spaceweather.com reported on February 10 that a s... Read more
Software
Paper Logging and Using Fast Log Entry for POTA – Ham Radio Q&A
“I typically paper log my Parks on the Air contacts during an activation. After I get home I will transcribe and edit the log with Fast Log Entr... Read more
New WSJT mode Q65
WSJT-X 2.4.0 will introduce Q65, a digital protocol designed for minimal two-way QSOs over especially difficult propagation paths On paths with D... Read more
VHF
Ham Radio vs GMRS
Ham Radio vs GMRS – Ham Radio compared to GMRS frequencies and modes – which ones is better? Today let’s talk about both of them, ho... Read more
Best GMRS Handheld Radio 2021 – GMRS Radio Comparison
Best GMRS Handheld Radio 2021 – GMRS Radio Comparison Read more
