This is amazing! AR 12740, which is an old cycle region and I honestly have not expected much, has produced a C9.9 (almost M-class) flare. The flare was very short duration, but note the spectacular large-scale coronal propagating front in the difference movie! pic.twitter.com/LVwMsVdrEq
— Halo CME (@halocme) May 6, 2019
Antenna
4 Ways to Use Your AlexLoop Antenna
AlexLoop Walkham Portable Small Magnetic Loop Antenna The AlexLoop Walkham was designed by PY1AHD Alexandre Grimberg and has had over twelve years of... Read more
ANTENNA CAROLINA WINDOM ® 160
Specifications Frequency Coverage 160 – 6 meters + 30, 17, 12 WARC Gain As much as 10 dBd* reported at most installations Radiator Length Horizo... Read more
Six-Band HF Center-Loaded Off-Center-Fed Dipole by ON4AA
Design goals Like many fellow radio amateurs, I own a fairly standard shortwave radio station consisting of a 100W HF transceiver driving a 1kW... Read more
How To Use An Antenna Tuner
How To Use An Antenna Tuner Read more
VHF
G-Series P25 – VHF UHF and 700-800 MHz
VIDEO http://www.unicationusa.com/ Read more
Retevis RT83(GPS) 10W IP67 DMR Digital UHF Radio
Retevis RT83 with digital and analogue mode two way radio. Using TDMA technology, designed with Tier II,AMBE++ vocoder, compatible with mototrb... Read more
2017 BaoFeng DMR Upgraded Version! BaoFeng DM-5R PLUS Dual Band DMR Digital Radio 2000mAH
BaoFeng DM-5R PLUS Transceiver Compatible with Motorola VHF/UHF 136-174/400-480Mhz 2000mAH High Capacity Battery High Power/Low power Repeater Mode Ti... Read more
Yaesu VX-8GR
VX-8GR – A Devoted APRS® User Dual Band Version of the VX-8R Series of HandheldKey Features of the VX-8GR include:• Full 5 watts FM 144/430 MHz. • RX... Read more
News
Inter-American Proposal Removes 47 – 47.2 GHz from Bands under Study for 5G Services
The 34th meeting of the Inter-American Telecommunication Commission (CITEL) Permanent Consultative Committee II (PCC.II) concluded a week of meetings... Read more
ARRL Contest and DXCC Rules Now Prohibit Automated Contacts
Following the direction of the ARRL Board of Directors, ARRL has incorporated changes to the rules for all ARRL-sponsored contests and DXCC, prohibiti... Read more
Happy 150! The Hiram Percy Maxim Birthday Celebration!
As announced in September 2019 QST – page 86 This year marks the 150th anniversary of the birth of the League’s first president and... Read more
Alexanderson Alternator Station SAQ Hails “Incredible” Number of Listener Reports
Sweden’s Alexanderson Alternator station SAQ says it received 438 listener reports — “an incredible amount” — for its June 30 Alexanderson Day transmi... Read more
Review
NX-3000 Series lightbar and custom voice prompts | Kenwood Comms
The lightbar and custom voice prompts are shown in operation on the NX-3000 series heandheld walkie talkie radio, these features are a big advantage f... Read more
The RS-918 clone of a clone of an outstanding open source SDR transceiver, the mcHF
RS-918 10WATT HF SDR Transceiver RX:1.8-30MHz TX:All HAM HF BANDS,Full Modes: SSB(J3E),CW,AM(RX Only),,FM, FREE-DV Features: Spectrum Dynamic Waterf... Read more
