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Dag: 29. september 2020

1. Oktober HF forhold

29. september 20206. april 2021 Ingolf Schau

Video om HF udbredelse og forhold

Video

Solar X-Rays Geomagnetic Field

Lær CW Online på Dansk

DX Zone

ARRL US amateur radio bands
Download this color US ham radio band-plan in PDF format edited by ARRL
Amateur Radio Emergency Service
"ARES trains and organizes Hams to provide emergency communications to ""Served Agencies"" such as FEMA, National Weather Service, Red Cross, Salvation Army, Hospitals, and others. This site describes ARES goals and methods and structure."
Araucaria DX Group
DX group and contests sponsor in spanish

ARRL

The K7RA Solar Update 2. december 2022
No new sunspots appeared over the past reporting week, November 24 to 30. But sunspots were visible every day. Then on December 1 three new sunspot groups emerged. The sunspot number rose from 12 to 49 and the total sunspot area went from 10 to 330.Sunspot numbers and solar flux declined during this reporting week […]
Radio Amateur Dr. Kristina Collins, KD8OXT, Earned PhD in Electrical Engineering 2. december 2022
Dr. Kristina Collins, KD8OXT, earned her PhD in Electrical Engineering from Case Western Reserve University on November 18, 2022. Dr. Collins' thesis, Development of a Low-Cost Meta-Instrument for Distributed Observations of Ionospheric Variability, focuses on the development of the HamSCI Grape Personal Space Weather Station Network. Ham Radio Science Citizen Investigation (HamSCI) serves as a...
Amateur Radio Club Provides Communications Support for Thanksgiving Day Race 2. december 2022
The BEARS of Manchester Amateur Radio Club in Manchester, Connecticut, spent Thanksgiving Day providing amateur radio communications support for the 86th Manchester Road Race.The race, a 4.748-mile course that begins and ends on Main Street in downtown Manchester, has been a Thanksgiving Day tradition since 1927. This is the 30th consecutive year the BEARS of […]

DX-Maps

04-Dec 1130 144 MHz EME calendar 2023 4. december 2022
The 144 MHz EME calendar for 2023 is available
02-Dec 1130 144 MHz EME calendar 2022 4. december 2022
The 144 MHz EME calendar for 2022 is available
08-May 1830 144 MHz animated sporadic-E maps 2022 available 8. maj 2022
The 144 MHz sporadic-E animated maps fo 2022 are already available
12-Apr 1130 New version 3.1 (build 677) of VQLog 12. april 2022
New version 3.1 build 677 of VQLog is available
29-Nov 1130 New version 3.1 (build 664) of VQLog 12. april 2022
New version 3.1 build 664 of VQLog is available

RTL SDR news

SDR Special Tool Kit: A Ruggedized Enclosure for two RTL-SDR V3 Dongles 1. december 2022
Terminal Armament, one of our resellers of RTL-SDR V3 dongles in the USA has created a companion product called the SDR Special Tool Kit (SDR-STK) which is a tactical ruggedized enclosure for two RTL-SDR V3 dongles. The SDR-STK consists of a two port USB hub enclosed in a water-resistant housing, and a rugged screw on […]
admin
A Software Based VGA AGC Implementation for the RTL-SDR 1. december 2022
Thank you to Chris G for writing in and sharing with us his software VGA ADC controller for the RTL-SDR. AGC or 'automatic gain control' is an algorithm that attempts to automatically adjust the gain on the RTL-SDR in order to maximize the signal to noise ratio. The built in hardware AGC's on the RTL-SDR […]
admin
RTL-SDR Blog L-Band Patch, Bullseye, YouLoop Sale 25. november 2022
This Black Friday we are offering a discount on our L-Band Patch, Bullseye and YouLoop antennas in our store and marketplace listings! The sale will run until the end of November. Our L-Band patch is an active design for receiving L-band satellites such as Inmarsat, Iridium, GPS and other satellites that transmit between 1525 - […]
admin
SDRplay RSPdx Black Friday and Holiday Season Sale Now Active 24. november 2022
SDRplay have today announced a sale on their "RSPdx" product which runs from today until December 31st. The new pricing is £130/€156/$169.95 plus shipping and any applicable taxes. This pricing is available for direct sales from SDRplay, and at any participating resellers. The pricing on SDRplay's direct sales platform before the sale was US$214 plus […]
admin
Airspy and YouLoop Black Friday Sale Now Active: 20% OFF 22. november 2022
Airspy is holding their annual Black Friday sale, this year offering 20% off their range of products. The sale is active at all participating resellers, which includes our own store where we have the YouLoop on sale for US$31.96 including free shipping to most countries in the world, instead of the usual US$39.95. Please note that due […]
admin

AMSAT UK

ARISS contact with students in Malta 1. december 2022
An ARISS contact between students at Stella Maris College, Gzira, Malta, callsign 9H1MRL and the International Space Station (ISS) is scheduled for Saturday 10th December at 0755 UTC. The ISS crew member will be astronaut Koichi Wakata KI5TMN who will … Continue reading →
m5aka
FUNcube-1 (AO73) Now celebrating nine years in orbit! 22. november 2022
Another year has passed and FUNcube 1 has continued to operate from its orbit around 600km above the earth. To start with some statistics. The spacecraft creates and downlinks data in frames that run for two minute periods. It has … Continue reading →
m5aka
Making QO-100 contacts from North America – A new challenge 1. november 2022
It is understandable that amateur radio operators in North America are disappointed that they cannot experience the fun of using QO100. However, although the footprint charts that have been published show that it is not possible, there have been good … Continue reading →
m5aka
AMSAT-UK Colloquium: Talks now on YouTube 27. oktober 2022
Videos of the talks given at the 2022 AMSAT-UK International Space Colloquium are now available on YouTube. Playlist is at https://youtube.com/watch?v=svaElf4UUkc&list=PLTDI7lbh1cWo-8sCd4AptcdzumTRtsstF
m5aka
Antarctica ISS school contact 5. oktober 2022
On Friday, October 7, 2022, from 15:14 GMT there will be a amateur radio contact from Antarctica with the International Space Station (ISS). Students from the #38 Raul Alfonsin school at the Esperanza Antarctic base will ask questions that will … Continue reading →
m5aka

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1. Oktober HF forhold
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