Text 15676, 500 rader
Skriven 2020-07-17 09:05:18 av Sean Dennis (1:18/200.0)
Ärende: The Weekly ARRL Letter
==============================
The ARRL Letter
July 16, 2020
* AMSAT-DL Submits Lunar Lander Proposal to European Space Agency
* DXCC Entities in Play as US Rejects China's Significant South China
Sea Claims
* Field Day 2020 is Shaping Up to be One for the Record Books
* ARRL Podcasts Schedule
* Radio Amateurs Respond to Flooding in Indonesia
* Russian-Ukrainian Radio War May be Escalating
* The K7RA Solar Update
* Just Ahead in Radiosport
* Announcements
* AMSAT VP Says Husky-1 CubeSat Project Helped Pave the Way for
Future Missions
* In Brief...
* Getting It Right
* Upcoming ARRL Section, State, and Division Conventions
AMSAT-DL Submits Lunar Lander Proposal to European Space Agency
Germany's amateur satellite organization AMSAT-DL has submitted a
comprehensive proposal to the European Space Agency (ESA) for its Lunar
Amateur Radio Transponder (LunART) lunar lander -- a communications
platform on the Large European Lander to support communication and
payload experiments. AMSAT-DL's Peter Guelzow, DB2OS, and Matthias
Bopp, DD1US, say that a LunART (called "LunaART" in the AMSAT-DL
proposal) would support direct communication with Earth via amateur
radio, support university and student payloads and offer direct access
to their experiments, and expand the reach of radio science. It could
also provide backup communication capability and capacity during an
emergency, or when the ESA network is busy.
The comprehensive radio platform would use the European frequency
protocol of 2.4 GHz up and 10.45 GHz down (approximately 100 W),
pioneered in the QO-100 satellite, the first geosynchronous amateur
radio payload. The platform would also include a VHF/UHF transponder.
AMSAT-DL would develop and build the necessary hardware and software
and provide ground station support via the 20-meter dish at AMSAT-DL
headquarters in Bochum, Germany. They envision developing a smaller
ground station with an approximately 1-meter dish to support groups,
including schools and universities. Low-power beacons would transmit on
various frequencies from VHF (145 MHz) through SHF (up to 24 GHz or
even 47 GHz), AMSAT-DL's proposal says.
"This transponder would also be an ideal platform to develop new
transmission schemes with novel modulation and coding techniques
optimized for long-distance communications with the corresponding high
latency (long delays)," AMSAT-DL said. "This would provide essential
knowledge in preparation of a future Mars mission." In addition, LunART
could include the capability to transmit still or slow-scan television
images and video to schools "from cameras attached to the lander
monitoring the moon surface and perhaps the Earth in the background
[which] would be ideal stimuli for getting school kids and STEM
organizations further interested in space."
The proposal is on open access at the ESA website and is now being
evaluated. AMSAT-DL's LunART follows the Lunar Amateur Radio
Interaction Experiment (LARIE) proposal from Andy Thomas, G0SFJ. Both
refer to weak signal modes and suggest the same frequency bands. Thomas
said he welcomes LunART as a well-developed proposal and hopes ESA will
support it as well. -- Thanks to Southgate Amateur Radio News
DXCC Entities in Play as US Rejects China's Significant South China Sea
Claims
To radio amateurs, Scarborough Reef or the Spratly Islands are DX
locations, occasionally activated to provide needy DXers with "a new
one." The Spratlys are #53 on the Club Log DXCC Most-Wanted List, but
Scarborough Reef -- a much more difficult piece of real estate to
access -- is #4. These South China Sea Islands are once again in the
news, as the US has begun putting heat on China by rejecting nearly all
of its significant land claims in the region. Secretary of State Mike
Pompeo this week said that the US now regards virtually all Chinese
maritime claims outside of its internationally recognized waters to be
illegitimate.
"The world will not allow Beijing to treat the South China Sea as its
maritime empire," Pompeo said. "America stands with our Southeast Asian
allies and partners in protecting their sovereign rights to offshore
resources, consistent with their rights and obligations under
international law. We stand with the international community in defense
of freedom of the seas and respect for sovereignty and reject any push
to impose 'might makes right' in the South China Sea or the wider
region."
A 2016 ruling from an international tribunal discounted China's claims
with respect to Scarborough Reef -- also known as Scarborough Shoal --
and the Spratlys, but it did not rule on the matter of sovereignty. In
addition to China's claim, Malaysia, Taiwan, Vietnam, and the
Philippines have asserted ownership of the Spratlys. Scarborough Reef
is claimed by China, the Philippines, and Taiwan. The Permanent Court
of Arbitration in the Hague ruled in favor of the Philippines in a
dispute with China over Scarborough Reef. The tribunal said that
although navigators and fishermen from China and other states have
historically made use of South China Sea Islands, there was no evidence
that China had historically exercised exclusive
Bob Vallio, W6RGG, was one of the
operators on the 2007 BS7H
Scarborough Reef DXpedition.
control over the waters or resources. The tribunal said China had
violated the Philippines' sovereign rights and had caused "severe harm
to the coral reef environment" by building artificial islands and an
air strip.
In 2015, a Chinese naval vessel "harassed a Philippine Air Force patrol
flight in the Spratlys," one news account reported, by firing an
illumination round. The incident postponed a Philippine Navy flight
that was to evacuate an ailing participant of the then-just-ended DX0P
DXpedition. The Chinese Navy has also warned off private aircraft. DX0P
was issued by the Philippines. Last week, China complained about the US
conducting joint exercises with two US aircraft carrier groups in the
region.
A May 2007 DXpedition to Scarborough Reef used the call sign BS7H,
granted by China. DXpedition team members operated from wooden
platforms mounted atop each of the reef's four rocks that were exposed
during high tide. The ARRL Board of Directors voted in 1996 to add
Scarborough Reef to the ARRL DXCC List.
Field Day 2020 is Shaping Up to be One for the Record Books
ARRL Contest Program Manager Paul Bourque, N1SFE, reported this week
that ARRL has received more than 8,700 online Field Day entries, and
paper-only entries have started arriving too.
"As many participants chose to operate from home this year, and given
the 2020 rules waivers, we have seen a tremendous increase in entries
over last year's event," Bourque said. "Most of the entries received
have been through the online web app, and Headquarters staffers have
begun processing the paper entries this week." The 2020 waivers allowed
individual club members to attribute their scores to their clubs.
Participants who submitted entries online are encouraged to check the
Field Day entries received page to verify that their entries are marked
as complete, and that the club name entered is correct. Entries with a
status of "pending" are incomplete entries that are missing one or more
items, and these need to be completed for an official entry.
Share your stories and photos using the ARRL soapbox page or via social
media, such as on the ARRL Field Day Facebook group.
ARRL Podcasts Schedule
The latest episode of the On the Air podcast (Episode 7) features tips
for soldering a PL-259 connector onto the end of a coaxial cable, and
information on beginner courses for hams who want to serve their
communities during disasters and other incidents. The On the Air
podcast is a monthly companion to On the Air magazine, ARRL's magazine
for beginner-to-intermediate ham radio operators.
The latest episode of the Eclectic Tech podcast (Episode 12), available
on Thursday, July 16, will feature a discussion with Bob Allison,
WB1GCM, about low-frequency activities, plus an update on the status of
NextGen TV.
The On the Air and Eclectic Tech podcasts are sponsored by Icom. Both
podcasts are available on iTunes (iOS) and Stitcher (Android) as well
as on Blubrry -- On the Air | Eclectic Tech.
Radio Amateurs Respond to Flooding in Indonesia
Indonesia's International Amateur Radio Union (IARU) member-society
ORARI and the National Institute of Aeronautics and Space of Indonesia
(LAPAN) have activated the IO-86 amateur radio satellite to facilitate
emergency communication in the South Sulawesi province in the wake of
flooding on July 13. The disaster has affected nearly 5,000 families,
according to Indonesia's National Disaster Management Authority (BNPB).
Heavy rains early this week swelled rivers and sent floodwaters, mud,
and debris across roads and into thousands of homes, submerging many of
them. IARU Region 3 Disaster Communication Coordinator Dani Halim,
YB2TJV, reports an emergency post was established near the scene of the
flooding. Some traffic is being handled on HF, and radio amateurs in
Region 3 are asked to keep 7.110 MHz free for emergency communications.
Repairs to the power grid are under way. Local emergency managers and
the Indonesian Red Cross have conducted a quick assessment in the
field. The provincial road is covered in mud, preventing access to the
main command post and the affected location.
As of July 15, at least 16 people died, and 46 other individuals are
missing. ORARI Local Soroako participated in activating the Masamba
flash flood disaster relief program and proceeded directly to the
disaster site. Carrying out communication support at the disaster site,
ORARI Local Soroako -- with Andi Baharuddin, YC8BR, who had first
headed for the disaster site -- and ORARI Local Luwu Utara were
establishing emergency communication.
Russian-Ukrainian Radio War May be Escalating
The June newsletter of the International Amateur Radio Union Region 1
Monitoring System (IARUMS) reports that what's being called "the
Russian-Ukrainian radio war" continues apace.
"The Russian-Ukrainian radio war remained on a high escalation level
also in June," IARUMS Region 1 Coordinator Peter Jost, HB9CET, said.
"Almost every day, we heard the massive spiteful and provocative
broadcasts. In June, they used more frequencies than before, affecting
our bands very hard. It is a great annoyance and a big shame!"
Jost points out that the IARU Monitoring System has little opportunity
to stop the on-the-air conflict. "Only national authorities can
hopefully do something against international complaints," he said. "It
is very important and very helpful that many other [IARU]
member-societies also observe these frequencies and make complaints to
their regulators. We have to coordinate this well within IARU and act
together. This is the only way we have a certain power."
In May, Jost reported that the radio war has raged "for years" at 7055
kHz LSB (as well as on 7050 or 7060 kHz). Jost also reported continued
daily transmissions from the Russian over-the-horizon radar known as
"Contayner" in the 40- and 20-meter amateur bands and elsewhere. The
Chinese "V" has been reported on 20 meters, from 14,246 to 14,256 kHz.
The K7RA Solar Update
Tad Cook, K7RA, Seattle, reports: Over the July 9 - 15 reporting week,
we only saw sunspot activity on July 10, when the daily sunspot number
was 12. The sunspot was designated as number 2766, returning for a
second appearance from Solar Cycle 24. From last week to this, the
average daily sunspot number declined from 3.3 to 1.7, but average
daily solar flux remained at 68.5.
Predicted solar flux remains low, further evidence of this long, deep
solar minimum. All flux values for the next 45 days are predicted to
stay below 70. The predicted 10.7-centimeter solar flux is 69 on July
16 - 22; 68 on July 23 - 24; 69 on July 25 - August 1, 68 on August 2 -
20; 69 on August 21 - 28, and 68 on August 29.
Predicted planetary A index is 5 on July 16 - 30; 8 and 10 on July 31 -
August 1; 5 on August 2 - 8; 8 on August 9 - 10; 5 on August 11 - 26; 8
on August 27 - 28, and 5 on August 29.
George Hall, N2CG, in Northern New Jersey reported an extensive 6-meter
opening, which we will cover in Friday's bulletin.
Sunspot numbers for July 9 - 15 were 0, 12, 0, 0, 0, 0, and 0, with a
mean of 1.7. The 10.7-centimeter flux was 68.7, 68.8, 68.7, 67.6, 68.2,
68.9, and 68.4, with a mean of 68.5. Estimated planetary A indices were
4, 3, 3, 3, 6, 11, and 5, with a mean of 5. Middle latitude A index was
4, 3, 2, 3, 7, 9, and 6, with a mean of 4.9.
A comprehensive K7RA Solar Update is posted Fridays on the ARRL
website. For more information concerning radio propagation, visit the
ARRL Technical Information Service, read "What the Numbers Mean...,"
and check out K9LA's Propagation Page.
A propagation bulletin archive is available. Monthly charts offer
propagation projections between the US and a dozen DX locations.
Share your reports and observations.
-------------------------------------------------------------------
Just Ahead in Radiosport
* July 18 -- Feld Hell Sprint
* July 18 -- Russian Radio Team Championship (CW, phone)
* July 18 -- Trans-Tasman Low-Bands Challenge (CW, phone)
* July 18 - 19 -- North American QSO Party, RTTY
* July 18 - 19 -- CQ Worldwide VHF Contest (CW, phone)
* July 19 -- RSGB Low Power Contest (CW)
* July 19 -- Run for the Bacon QRP Contest (CW)
* July 19 -- CQC Great Colorado Gold Rush (CW)
* July 22 -- SKCC Sprint (CW)
* July 23 -- RSGB 80-Meter Club Championship, Data
See the ARRL Contest Calendar for more information. For in-depth
reporting on amateur radio contesting, subscribe to The ARRL Contest
Update via your ARRL member profile email preferences.
-------------------------------------------------------------------
Announcements
* The ARRL Board of Directors will meet July 17 - 18 in virtual
session for its second regular meeting of the year. The Board will
hear reports from committees, including the CEO Search Committee,
chaired by Central Division Director Kermit Carlson, W9XA; consider
committee reports and recommendations, and proposals for amendments
to the Articles of Association and Bylaws.
* ARRL has a new way to let members know when the digital editions of
QST and other publications are available. Distributed via email,
The ARRL Current offers a monthly overview of ARRL publications and
member benefits. The inaugural edition launched in June. Subscribe
now to receive each issue going forward. Manage your email
preferences from your ARRL account (members must first be
registered on the ARRL website). Go to the Edit Email Subscriptions
page, select The ARRL Current, and then click Save.
* Volunteer Monitor (VM) program coordinator Riley Hollingsworth,
K4ZDH, reported that monitoring hours increased significantly from
the first quarter to the second quarter of the year. VMs logged
first-quarter HF hours at 3,533, and VHF/UHF/Other hours at 2,258.
They logged second-quarter HF hours at 5,930, and VHF/UHF/Other at
7,478.
* "The Uncertain Future of Ham Radio" is the title of an IEEE
Spectrum article by Julianne Pepitone that addresses a range of
topics, from ARRL to spectrum allocation and ham radio
demographics. The author interviewed both young and old radio
amateurs to glean their individual perspectives on how to grow
amateur radio and keep it alive for future generations.
* The European Space Agency (ESA) has released a new video, "How to
get pictures from the International Space Station via Amateur
Radio." The video features radio amateur David Honess, 2E0XDO
(ex-M6DNT). An article on the same topic, "Pictures from space via
ham radio," appeared last year in The MagPi, the Raspberry Pi
magazine.
* The first DX Engineering (DXE) Virtual Hamfest and DX Academy takes
place on Saturday, July 25, Both virtual events are free. Register
for the Zoom platform presentations or watch live on the DXE
YouTube channel. The DXE hamfest starts at 9 AM. The DX Academy
starts at 1 PM. Visit the DXE Facebook page or On All Bands blog
for more information.
* Brazil's IARU member-society LABRE has released an analysis of
radio amateurs by numbers, class, and state. With a population of
212 million, Brazil boasted 39,539 radio amateurs (36,919 men and
2,620 women) in 2019. By way of comparison, the UK, with a
population of 67 million, is believed to have some 78,000
individual amateur licensees as of mid-July 2020.
-------------------------------------------------------------------
AMSAT VP Says Husky-1 CubeSat Project Helped Pave the Way for Future
Missions
AMSAT Vice President of Engineering Jerry Buxton, N0JY, said that while
it was disappointing that the amateur transponder on HuskySat-1
(HO-107) was not available any longer, following the satellite's
science missions, the overall HuskySat-1 project and mission "were
quite beneficial for our partner and for AMSAT." The linear transponder
module (LTM) on HuskySat-1 was operational for more than 3 months,
failing during or just after a period of full sun when LTM temperatures
topped 80 øC (176 øF). HuskySat-1 was the first CubeSat from the Husky
Satellite Lab at the University of Washington (UW) and the first
mission with AMSAT's LTM V/u transponder onboard. University
researchers conducted their work using an FCC Part 5 Experimental
license.
"The HuskySat-1 team was able to command their satellite and
experiments and receive the telemetry they sought, and AMSAT was able
to work through the extensive process of making a new design for a
'black box' radio module that can be integrated into a non-AMSAT
spacecraft and fly in the space environment," Buxton said in a recent
post to the AMSAT-BB reflector. "While licensed and operated as an
amateur radio satellite by AMSAT during the transponder use, some facts
set HO-107 apart from our Fox-1 CubeSats and other AMSAT satellites,"
Buxton explained, pointing out that HuskySat-1 was not an AMSAT
satellite.
"We have no control and may not have any insight into how a partner
actually uses the LTM," he said. "While we see the LTM temperatures and
many of the other typical data fields that we downlink to FoxTelem
regarding LTM health, data such as temperature of the host environment
as well as other specific information like power and the state of the
other systems in a host satellite may or may not be available to us.
Whether LTM is operated within design limits is entirely up to the
host."
Buxton said the HuskySat team and AMSAT cooperated smoothly on the
mission. The HuskySat-1 team is processing and studying its data for
use in their thesis and classes and preparing it for release "in a
specific way typical of such an institution today," he said. "AMSAT is
generally more forthcoming with information about our missions, but
what we can and have said about this mission is determined by UW."
Buxton said the LTM concept is now becoming available for other
non-AMSAT CubeSats to fly amateur radio on their mission.
"HO-107 is the pilot production of LTM and was developed in partnership
with UW HuskySat-1," Buxton explained. "It was the first CubeSat radio
module designed and built by AMSAT for use in other host CubeSats, and
UW was key in working with us through the design and processes needed
to provide such a module. They did not buy it as such, nor did we give
it to them as an 'off-the-shelf' product, as we plan to for future LTM
production."
LTM was developed from the Fox-1E linear transponder design. "Overall,
the HuskySat-1 team was quite happy with the telemetry and command
performance, even with the LTM anomalies showing up toward the end of
their experiments," Buxton said. "In the process of getting HuskySat-1
to orbit, several students became interested in amateur radio, and we
have already had preliminary discussions of future joint mission
plans."
"There is no doubt that HO-107 was a success in many ways beyond the
operational life of the transponder," Buxton added. -- Thanks to AMSAT
News Service
In Brief...
Former North Texas Section Manager Tom Blackwell, N5GAR, of Dallas,
Texas, died on May 14. An ARRL Life Member, he was 65. Blackwell served
as North Texas SM from 2005 until 2009. Blackwell graduated from the
University of Texas at Austin in the College of Business
ministration. He attended graduate school at the University of Texas
at Dallas. He was an original petitioner in the Petition for Rule
Making that resulted in a new FCC rule that allowed radio amateurs who
are employees of public safety agencies and other entities, such as
hospitals, to participate in drills, tests, and exercises in
preparation for such emergency situations and to transmit messages on
behalf of their employers during such drills and tests under "certain
limited conditions." During his tenure as Section Manager, Blackwell
served as State Government Liaison, Public Information Officer, and
Technical Specialist.
International Lighthouse Lightship Weekend is on track for 2020.
Registrations for this year's popular International Lighthouse
Lightship Weekend (ILLW) appear to have been largely unaffected by the
current COVID-19 pandemic. The event will take place this year over the
August 22 - 23 weekend. By mid-July, more than 200 entries had been
received, and some 400 are expected to have signed up by the event
weekend. New to this year's event is Corsica at Phare d'Alistro, which
for ILLW purposes carries the French number of FR0030. Two lighthouses
in Ghana will be on the air for the first time, as well as Buck Island
Lighthouse in the US Virgin Islands (VI0001). Germany is well in the
lead with 54 entries, followed by Australia with 29 entries, and the US
with 27 entries. This event is designed as a fun weekend to encourage
exposure to amateur radio and lighthouses to the visiting public, and
ILLW stresses that contacts should be more than just an exchange of
signal reports. All participants are urged to observe local COVID-19
safety guidelines. --Thanks to Kevin Mulcahy, VK2CE
The Reverse Beacon Network (RBN) will gain 15 new nodes, thanks to a
Yasme Foundation supporting grant. These new nodes will be added in
regions where there is a need for reception reports to support amateur
radio operation and where those reports will also have scientific value
for geophysical research. Yasme was assisted in this effort by
supporting grants from Amateur Radio Digital Communications (ARDC) and
by scientific advice from HamSCI researchers. Node locations will be
available after a final list of hosts is available.
Getting It Right
In the July 9 edition of The ARRL Letter, a "slight" miscalculation in
an announcement about a new KiwiSDR in Iceland led to an incorrect
metric-to-English conversion. The item should have said, "at an
altitude of 690 meters (about 2,298 feet)."
-------------------------------------------------------------------
Upcoming ARRL Section, State, and Division Conventions
-------------------------------------------------------------------
Note: Many conventions and hamfests have been canceled or postponed due
to the coronavirus pandemic. Check the calendar of canceled events on
the ARRL website.
-------------------------------------------------------------------
* July 16 - 19 -- Montana State Convention, Essex, Montana
* July 24 - 25 -- Oklahoma State Convention, Oklahoma City, Oklahoma
(now a free Zoom-based online event)
* August 21 - 23 -- West Virginia State Convention, Weston, West
Virginia (now a free Zoom-based online event)
Find conventions and hamfests in your area.
-----------------------------------------------------------------------
ARRL -- Your One-Stop Resource for
Amateur Radio News and Information.
.
.
* Join or Renew Today! Eligible US-based members can elect to receive
QST or On the Air magazine in print when they join ARRL or when
they renew their membership. All members can access digital
editions of all four ARRL magazines: QST, On the Air, QEX, and NCJ.
* Listen to ARRL Audio News, available every Friday.
Subscribe to...
* NCJ -- National Contest Journal. Published bimonthly, features
articles by top contesters, letters, hints, statistics, scores, NA
Sprint, and QSO parties.
* QEX -- A Forum for Communications Experimenters. Published
bimonthly, features technical articles, construction projects,
columns, and other items of interest to radio amateurs and
communications professionals.
Free of charge to ARRL members...
* Subscribe to the ARES E-Letter (monthly public service and
emergency communications news), the ARRL Contest Update (biweekly
contest newsletter), Division and Section news alerts -- and much
more!
* Find ARRL on Facebook! Follow us on Twitter and Instagram!
----------------------------------------------------------------------
The ARRL Letter is published Thursdays, 50 times each year. ARRL members
and registered guests may subscribe at no cost or unsubscribe by editing
their profile.
Copyright (c) 2020 American Radio Relay League, Incorporated. Use and
distribution of this publication, or any portion thereof, is permitted for
non-commercial or educational purposes, with attribution. All other
purposes require written permission.
--- SendMsg/2
--- Squish/386 v1.11
* Origin: Outpost BBS@bbs.outpostbbs.net:10123 (1:18/200)
|