Foundations of Amateur Radio #210
Milking Software Defined Radio
One of the unsung hero components of a Software Defined Radio is the A/D or Analogue to Digital converter. Its job is to convert the analogue signal that’s coming in via the antenna into a digital signal that is processed by software

MacDoppler Version 2.30 released
Dog Park Software is pleased to announce that MacDoppler Version 2.30 has been released

144 and 1240 MHz on WRC-19 Special Focus page
The RSGB WRC-19 Special Focus page has been updated with information concerning the background for WRC-19 and the latest on concerns regarding WRC-23 proposals for 144 and 1240 MHz bands

FT8 used in June VHF Contest
The ARRL Letter reports on the observations of WSJT-X Developer Joe Taylor K1JT on using the popular digital mode FT8in the June VHF contest

VK6WIA NewsWest
NewsWest,for Sunday 16th June 2019 is the New Amateurs edition. NewsWest is produced by WA Amateur Radio News, and goes to air every Sunday of the year

ECO 2018 Report published
The CEPT Electronic Communications Committee (ECC) has tweeted that the ECC’s permanent office, the ECO, has published its Annual Report for 2018

ARRL Executive Committee minutes for May published
The ARRL has released the minutes of their Executive Committee meeting which took place on May 20

NEXUS transponder to be active for Friedrichshafen
The amateur radio linear transponder (SSB/CW) on the NEXUS (FO-99) satellite will be active during the Friedrichshafen Ham Radio event June 22-23

SARL Top Band QSO Party this week
Have you got the SARL Top Band Certificate?
By participating in the SARL Top Band QSO Party from 00:00 UTC on Thursday 20 June 2019 to 00:00 UTC on Monday 24 June 2019, you can make the required QSOs for this certificate

Propagation de K7RA
The long string of days with no sunspots continues, with spots last observed nearly a month ago, on May 18. According to spaceweather.com on June 12, there have been no sunspots for 24 days in a row

Ham radio satellites to deploy from ISS
Masa JN1GKZ reports three BIRDS-3 satellites with amateur radio payloads will be deployed from the International Space Station during the morning of June 17, 2019

Essex Table Top Sale
The annual CARS Table Top Sale returns to Danbury Village Hall, Essex on Monday, June 17

LimeSDR mini satellite ground station
Daniel Estévez EA4GPZ / M0HXM has written about using a LimeSDR Mini as the basis for a ground-station for the amateur radio transponders on the geostationary satellite Es’hail-2 / QO-100

Telebridge contact for Tasmania web streamed
As already announced, an International Space Station school contact has been planned for David St-Jacques KG5FYI with participants at King Island District High School, Currie, TAS, Australia

Former Colliery Sites on the Air
We would like to invite Radio Amateurs to take part in Former Colliery Sites on the Air

DX News from the ARRL
The American Radio Relay League’s round-up of the forthcoming week’s DX activity on the amateur radio bands

Make: Magazine closing down
Maker Media publishers of Make: Magazine, which has carried a number of amateur radio articles, is ceasing operations

Global Map of Lighthouses
With the ILLW (International Lighthouse and Lightship Weekend) coming in August, here’s a map of all the lighthouses across the globe

2 meter band in danger: CQ solidarity
This week a headline has alerted the global radio amateurs community: France plans to kick us out of the popular 2 meters band (144-146 MHz in Europe)

ARISS school contact planned for Tasmania, Australia
An International Space Station school contact has been planned forDavid St-Jacques KG5FYI with participants at King Island District High School, Currie, TAS, Australia

The Space Weather Woman
The latest space weather forecast from Dr Tamitha Skov WX6SWW. Q&A Live Mini Course: As the Sun Screams – Solar Flares and Radio Bursts

ARISS school contact for Claygate, UK re-scheduled
The International Space Station school contact for Nick Hague KG5TMV with participants at Rowan Preparatory School, Claygate, United Kingdom, which was planned for Tuesday, has been re-cheduled

WOLFWAVE Upgrade
In a major upgrade, SOTABEAMS has added an effective Morse decoder that can decode signals from 1 to 100 words per minute.

Sweden’s SSA responds to Radio Spectrum Use consultation
The consultation on Radio Spectrum Use in the Future held by Sweden’s Ministry of Enterprise and Energy closed on June 5, 2019

WRC-23 Agenda Items may impact 144 MHz and 1240 MHz bands
IARU Region 1 notes that there are two proposals under discussion in Europe as possible future Agenda Items at WRC 2023, which potentially could impact important amateur radio frequencies

Teaching wireless communications at University of Southampton
An IEEE Spectrum article describes how the University of Southampton uses the USRP and LabVIEW to change the way it teaches wireless communications

Radios on the Beach
SEA-PAC hamfest took place May 31 to June 2 at the Seaside Convention Center, Oregon. Randy Hall K7AGE has released a video of the beach portable activity

New proposals to help defragment the 3.4-3.8 GHz band
Ofcom has announced revised proposals to help defragment the 3.4-3.8 GHz band, following next year’s auction of 3.6-3.8 GHz spectrum