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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

GW4ARC Rhyl and District Amateur Radio Club
Website of the Rhyl & District Amateur Radio Club, a friendly and dedicated radio club located in Rhyl on the North Wales coast.
KN2MET NYC Metro
NYC METRO is a not for profit 501(c)(3) publicly supported organization, supporting the Amateur Radio Communities Emergency Services.
N2NHU My amateur radio world
Amateur Radio - by N2NHU Jim P. Ames, personal page

ARRL

Leadership Changes in ARRL Atlantic Division 3. februar 2023
The ARRL Atlantic Division has new leadership. Tom Abernethy, W3TOM, who had served as an ARRL Director, representing the Atlantic Division since 2015, stepped down on January 6, 2023.(left to right) ARRL President Rick Roderick, K5UR, recognized Bob Famiglio, K3RF, and Marty Pittinger, KB3MXM, as the new Director and Vice Director, respectfully, of the Atlantic […]
The K7RA Solar Update 3. februar 2023
Solar activity softened again this week, with average daily sunspotnumbers changing from 162 to 80.7, and solar flux from 198.9 to139.5.This is quite a dramatic shift from the excitement of a couple ofweeks ago. To review, average weekly sunspot numbers from the firstPropagation Forecast bulletin of 2023 went from 97 to 135.9, 173.4and 162. Average […]
Missouri S&T Amateur Radio Club to Celebrate 100 Years 27. januar 2023
The Missouri S&T Amateur Radio Club, W0EEE, at Missouri University of Science and Technology (Missouri S&T), is gearing up for an early celebration of their 100 years. Club President Morgan Lyons, KI5SXY, said the station first went on the air in 1923 as the M.S.M Radio Club, broadcasting basketball games from the Jackling Gym on […]

DX-Maps

01-Feb 1200 New version 3.1 (build 704) of VQLog 1. februar 2023
New version 3.1 build 704 of VQLog is available
13-Dec 1600 New version 3.1 (build 683) of VQLog 13. december 2022
New version 3.1 build 683 of VQLog is available
12-Apr 1130 New version 3.1 (build 677) of VQLog 13. december 2022
New version 3.1 build 677 of VQLog is available
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

RTL SDR news

SARCTRAC Mk3b: A $290 Satellite Antenna Rotator 3. februar 2023
In January we posted about the AntRunner, which is a $325 (incl. shipping) satellite antenna rotator shipped from China. Recently we've come across another low cost satellite rotator from Australia called the "SARCTRAC Mk3b" which was developed as part of a school amateur radio educational program. This rotator fully assembled comes in at AU$400 + […]
admin
Using a PlutoSDR as a Monopulse Tracker 3. februar 2023
Over on YouTube Jon Kraft has been uploading videos explaining some interesting beamforming experiments he's been doing with his PlutoSDR. One experiment shows how to create a DIY monopulse tracker, which is a type of radio direction finding technique. The PlutoSDR has two RX ports and two TX ports, and in this experiment he uses […]
admin
SOCORAD32 Now Crowd Funding: ESP32-based Walkie-Talkie with Data Communication 31. januar 2023
Back in May of 2022 we posted about SOCORAD32 which at the time was pre-announced for future crowd funding. A few days ago Crowd Funding begun and already it's goal has been reached. The project is described as a "hackable, open source, ESP32 amateur radio board with walkie-talkie functionality and data communication". We note that […]
admin
Tech Minds: Demonstrating RTL_433 Running on ESP32 Devices 31. januar 2023
Earlier in the month we posted about how rtl_433 has been ported to ESP32 devices that are combined with CC1101 or SC127X transceiver chips, such as the low cost LILYGO LoRa 32 boards available on Aliexpress. Over on YouTube Matt from the Tech Minds channel has uploaded a video showing how to set up rtl_433 […]
admin
AirNav Systems Launch AIS Aggregator ShipXplorer.com 31. januar 2023
AirNav Systems are behind the RadarBox ADS-B tracking aggregator, one of several companies that use data obtained by volunteers running RTL-SDR dongles to collect ADS-B flight data from all over the world. Recently they've launched a new project called ShipXplorer.com which is a marine AIS aggregation service. Like RadarBox, ShipXplorer relies on volunteers running receiver […]
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AMSAT UK

User manual for CAS-10 satellite 23. december 2022
On December 18, 2022, CAMSAT’s satellite XW-4 (CAS-10) was deployed from the Tianzhou-5 cargo ship that was docked to the Tiangong space station. CAS-10 carries a linear amateur radio transponder. The satellite user manual can be downloaded here: CAMSAT XW-4 … Continue reading →
m5aka
User manual released for Fengtai OSCAR-118 16. december 2022
CAMSAT’s transponder satellite CAS-5A (Fengtai OSCAR-118) launched on December 9, 2022, carrying three amateur radio transponders. The satellite user manual can be downloaded here: CAS-5A Amateur Radio Satellite User’s Manual V1.0 CAS-5A Frequencies: CW Beacon: 435.570MHz CW 22wpm U/V Linear … Continue reading →
m5aka
ARISS contact with students in Malta 1. december 2022
Update Dec 9 : Contact POSTPONED An ARISS contact between students at Stella Maris College, Gzira, Malta, callsign 9H1MRL and the International Space Station (ISS) is scheduled for TBD. The ISS crew member will be astronaut Koichi Wakata KI5TMN who … 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

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