Amateur Radio News
Displaying articles 1 - 10 of most recent articles
SatNOGS Satellites List
Operating Modes/SatellitesSatNOGS DB is an effort to create an hollistic, unified, global database for all artificial objects in space (satellites and spacecrafts). You can view and export the data, contribute to it, or even connect your application using
The DXZone | 10 hours, 15 minutes ago | comment? | recommend
The DXZone | 10 hours, 15 minutes ago | comment? | recommend
Top Amateur Radio Websites - Issue 2231
40m center loaded vertical antenna, Coax Dipole for 2 meters band, 20m 30m 40m Bandpass Filters, SteppIR UrbanBeam Review, QTHnow, VA6AM Contesting Accessories, ANjo Antennen
The DXZone | 10 hours, 15 minutes ago | comment? | recommend
The DXZone | 10 hours, 15 minutes ago | comment? | recommend
PE0SAT Satellite Frequency List
Operating Modes/SatellitesAn online reference table with Satellite information including current status, uplink and downlink frequencies.
The DXZone | Sep 24, 2022 07:30 AM [GMT] | comment? | recommend
The DXZone | Sep 24, 2022 07:30 AM [GMT] | comment? | recommend
The K7RA Solar Update
Geomagnetic disturbances were down this week, but so were sunspotnumbers and solar flux.Average daily sunspot numbers declined from 92.7 to 68, and averagedaily solar flux from 141.3 to 134.3.On September 22 the sunspot number was 99, well above (by 31 po
ARRL | Sep 23, 2022 2:41 PM [GMT] | comment? | recommend
ARRL | Sep 23, 2022 2:41 PM [GMT] | comment? | recommend
Vertical Antenna Wavelength Vs Performance
Antennas/Theory/Antenna GainThis article on basic antenna theory explains why is a 5/8 wavelength vertical antenna better than a 1/4 wavelength antenna
The DXZone | Sep 23, 2022 07:31 AM [GMT] | comment? | recommend
The DXZone | Sep 23, 2022 07:31 AM [GMT] | comment? | recommend
Amateur Radio Operators Track Hurricane Fiona
The National Hurricane Center (NHC), the Hurricane Watch Net (HWN), the Voice over Internet Protocol (VoIP) Hurricane Net, and the Salvation Army Team Emergency Radio Network (SATERN) all have been engaged in tracking Hurricane Fiona.Amateur radio operato
ARRL | Sep 22, 2022 10:14 PM [GMT] | comment? | recommend
ARRL | Sep 22, 2022 10:14 PM [GMT] | comment? | recommend
Blocking Dynamic Range in Receivers
Technical Reference/ReceiversAn explanation of the different procedures and definitions that are commonly used for blocking dynamic range (BDR) measurements. Dynamic range in general is the ratio between the weakest signal a system can handle and the stro
The DXZone | Sep 22, 2022 07:31 AM [GMT] | comment? | recommend
The DXZone | Sep 22, 2022 07:31 AM [GMT] | comment? | recommend
Double BiQuad Antenna for 2.6 GHz
Antennas/MicrowaveThis is basic instructions for homemade 4G Antenna working on 2600 MHz UMTS featuring 13 14 dBi gain.This antenna is desigend to resonate on microwave frequencies in two segments from 2500 to 2570 MHz for Uplink, and from 2620 to 2690 MH
The DXZone | Sep 21, 2022 07:32 AM [GMT] | comment? | recommend
The DXZone | Sep 21, 2022 07:32 AM [GMT] | comment? | recommend
John Portune, W6NBC, and Jim Bailey, W6OEK, Win the August 2022 QST Cover Plaque Award
Read full story for latest details.
ARRL | Sep 20, 2022 2:44 PM [GMT] | comment? | recommend
ARRL | Sep 20, 2022 2:44 PM [GMT] | comment? | recommend
Battery Charger for Hand Held Radio Battery Packs
Technical Reference/Batteries/Battery ChargerThis is a handy little charger that can provide a charging current of up to 120 mA continuously for batteries in the range up to 12 volts. The supply is housed in a small plastic enclosure 90 x 55 x 32 mm.
The DXZone | Sep 20, 2022 07:31 AM [GMT] | comment? | recommend
The DXZone | Sep 20, 2022 07:31 AM [GMT] | comment? | recommend
