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The ARRL Letter May 14, 2020
- ARRL Announces New Life 70+ Membership
- ARRL Seeks Clarification of Amended Amateur Service RF Safety Rules
- Choosing FTx Transmit and Receive Frequencies in Crowded Contest Bands
- ARRL Podcasts Schedule
- "ARRL at Home Hamvention" Weekend of Specials Set
- The K7RA Solar Update
- Just Ahead in Radiosport
- New WSJT-X Beta Version Offers Significant FT4 and FT8 Upgrades
- ARISS Sets Second Test of New Multipoint Telebridge Contact System
- Two New Chinese Ham Satellites Expected to Launch in September
- Announcements
- Amateur Radio Gains Significant Boost in UK by Connecting People During
Lockdown
- In Brief...
- Upcoming ARRL Section, State, and Division Conventions
COVID-19 Impact & News
Find the latest news and information on the impact of the coronavirus
pandemic to ARRL members and our global amateur radio community.
ARRL Announces New Life 70+ Membership
--------------------------------------
The ARRL Board of Directors recently voted to create a special Life
Membership opportunity for individuals who are at least 70 years old.
Starting on June 1, the Life 70+ Membership will be available to individuals
who have turned 70 and have a combined 25 years of paid annual ARRL
membership.
Life 70+ Members receive all benefits of an annual membership, including
their choice of print magazine delivery (QST or On the Air), and digital
access to these publications, plus the digital versions of QEX and National
Contest Journal (NCJ). In addition, each Life 70+ Member will receive a Life
Member pin and a window decal and may purchase an exclusive Life Member
plaque.
Qualifying members selecting this level of membership will enjoy the
convenience of having to make a single payment for their entire tenure as an
ARRL Member and not be subject to any future ARRL dues increase.
To apply for Life 70+ membership, individuals must complete the special Life
70+ Member application -- available on June 1 -- and submit proof of date of
birth, if this information is not already on file with ARRL. The Life 70+
membership fee must be made in a single payment. Past membership dues
payments will not apply toward Life 70+ Membership, but a credit will be
applied for applicants who paid their dues in full between April 1 and May
31, 2020.
Life 70+ Membership Dues Rates
$750 US Life 70+ Membership
$750 International Digital Life 70+ Membership
$1,515 International Life 70+ Membership with a Print Subscription
$250 Family Life 70+ Membership as an add-on to a paid Life 70+ membership
ARRL reserves the right to change or substitute the benefits, products, or
services associated with a member's original Life 70+ Member package at any
time during the membership. Dues are non-refundable.
Life 70+ membership applications will be available for download beginning on
June 1.
ARRL Seeks Clarification of Amended Amateur Service RF Safety Rules
-------------------------------------------------------------------
ARRL has filed a Petition for Clarification addressing two issues arising
from amended FCC RF safety rules that go into effect on June 1 for the
Amateur Service and other FCC-regulated services. Licensees will have 2
years to determine if an RF safety evaluation is now required under the new
rules and to perform an evaluation and implement any needed mitigation
measures. Current rules already require amateur stations to meet RF exposure
limits, but more radio amateurs will have to evaluate their stations under
the new rules. The revised final rules, adopted last November, appeared in
the April 1 edition of The Federal Register.
"For applicants and licensees in the Amateur Radio Service, we substitute
our general exemption criteria for the specific exemption from routine
evaluation based on power alone in õ97.13(c)(1) and specify the use of
occupational/controlled limits for amateurs where appropriate," the FCC
said. While radio amateurs have always had to comply with RF exposure
limits, certain stations have been exempted from having to conduct
evaluations based upon power and frequency.
On May 8, ARRL asked the FCC to clarify that using maximum permissible
exposure (MPE) limits be permitted in the Amateur Service for required RF
safety evaluations of 2200-meter operations, just as they are elsewhere in
the amateur spectrum. Removal of the exemption for amateurs resulted in a
requirement to use specific absorption rate (SAR) limits for amateur
frequencies between 100 and 300 kHz.
"Near-field calculation of a uniform field applied to a transmitter and
antenna operating at 1 W EIRP on 2200 meters would result in a very
conservative estimate of specific absorption rate (SAR) and is a valid
measurement for determining safety of operation," ARRL told the FCC. "We
request clarification that the rules do not intend to preclude the use of
MPE as a surrogate for SAR to evaluate amateur operations in the 2200-meter
band."
ARRL also wants the FCC to clarify that its amended rules permit the use of
near-field regression rates, using the MPE table to compare against the
maximum field strength that may occur from a handheld portable device,
instead of using the SAR. In its filing, ARRL maintained that SAR data is
not available for amateur equipment, as it is for equipment used in other
services. Before the rules were amended, mobile and portable transmitters
generally were exempt from the requirement to perform routine environmental
evaluations.
Under õ97.13(c)(1) as amended, effective on June 1, amateur licensees must
ensure compliance with FCC RF exposure requirements spelled out in sections
1.1307(b), 2.1091, and 2.1093 of the FCC rules, where applicable. The rule
directs radio amateurs to OET Bulletin 65, Supplement B for methodologies
and guidance to evaluate amateur radio operation.
The FCC has provided 2 years -- until May 31, 2022 -- for licensees to
determine if evaluations are now required, to perform such evaluations where
necessary, and to implement any needed mitigation measures.
The FCC did not amend the actual RF exposure limits that were adopted in
1996. Read more.
Choosing FTx Transmit and Receive Frequencies in Crowded Contest Bands
----------------------------------------------------------------------
Here's how to pick FT-mode transmit and receive frequencies in crowded
contest bands. First, pick an audio offset frequency greater than 500 Hz,
but less than the suggested frequency intervals (e.g., 2 kHz). In crowded
band conditions, the "base" transmit frequencies for FT4 or FT8 are
suggested to be at 2 kHz intervals. For example, some stations may set their
radio's frequency to 14.130 MHz, while others are at 14.132 or 14.134 MHz.
Under these conditions, it makes sense to choose a transmit frequency offset
greater than 500 Hz, but less than 2 kHz.
Here's the reasoning: If the CQing station chooses 14.130.0 with an offset
of 2.4 kHz, then a listening station's radio tuned to 14.132.0 will "see"
that station at 400 Hz. Many radios have audio passbands of between 500 Hz
and 3,000 Hz. Frequencies outside that range are not received as well. A
reduced sensitivity at 400 Hz can make the difference in decoding
successfully.
The station answering the CQ (radio at 14.132.0 MHz) should likely pick a
frequency at or near the CQ frequency, since the operator doesn't know
whether the CQing station's frequency is at 14.130 or 14.132. If the
receiving station chooses, say, 1.5 kHz, this would be at 14.133.5. A CQing
station set to 14.130 may not be decoding all the way to 3.5 kHz from the
radio's offset frequency. -- Thanks to The ARRL Contest Update
ARRL Podcasts Schedule
The latest episode of the On the Air podcast (Episode 5) focuses on the
various types of modulation and tips on go kits. 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 7) includes a
discussion of HF aeronautical radio, the NCDXF beacon system, SpaceX's new
Starlink satellites, and "Folding@Home," a system that uses distributed
computing to search for a COVID-19 cure (among other things).
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.
"ARRL at Home Hamvention" Weekend of Specials Set
-------------------------------------------------
For the first time in its 68-year history, Dayton Hamvention© will not take
place, due to concerns about the coronavirus outbreak. ARRL understands that
many members will miss going to Hamvention, which is always an occasion to
catch up with friends, explore new products, and connect with ARRL via our
Expo in the exhibit area.
While we can't be together in Dayton in 2020, ARRL has put together a
weekend of specials to bring a bit of the Hamvention spirit and excitement
to members during what would have been Dayton Hamvention weekend, May 14 -
17. On the ARRL at Home Hamvention page, members will find a special message
from ARRL President Rick Roderick, K5UR; new membership premiums; the latest
products; clearance merchandise, and our "ARRL at Hamvention" button. All
who make weekend purchases will receive a free ARRL button with their order,
while supplies last.
Visit the ARRL at Home Hamvention page to check out all the offerings.
The K7RA Solar Update
---------------------
Tad Cook, K7RA, Seattle, reports: No sunspots appeared last week. The
previous 7 days had only one big sunspot group on one day, and the sunspot
number was 35. Over the 7-day period, this averaged out to a sunspot number
of 5, so average daily sunspot numbers declined from 5 to 0 this week. The
average daily solar flux also declined, from 69.5 to 68.5.
Geomagnetic indicators were quiet, with average daily planetary A index
declining from 5.1 to 4.1, and mid-latitude A index from 5 to 4.7.
Predicted solar flux is 70 on May 14 - 31; 68 on June 1 - 13, and 70 on June
14 - 27. Predicted planetary A index is 5 on May 14 - June 8; 8 on June 9 -
10; 5 on June 11 - 13; 10 and 8 on June 14 - 15, and 5 on June 16 - 27.
Sunspot numbers for May 7 - 13 were 0, 0, 0, 0, 0, 0, and 0, with a mean of
0. The 10.7-centimeter flux was 68.7, 67.9, 71, 67.9, 66.2, 68.9, and 68.8,
with a mean of 69.5. Estimated planetary A indices were 4, 4, 3, 5, 5, 4,
and 4, with a mean of 5.1. Middle latitude A index was 5, 4, 3, 5, 7, 5, and
4, with a mean of 5.
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
------------------------
May 16 -- Feld Hell Sprint
May 16 -- UN DX Contest (CW, phone)
May 16 - 17 -- NZART Sangster Shield Contest (CW)
May 16 - 17 -- His Majesty King of Spain Contest, CW
May 16 - 17 -- Aegean RTTY Contest
May 16 - 18 -- Portuguese Navy Day Contest (CW, phone)
May 17 -- Run for the Bacon QRP Contest (CW)
May 18 -- RSGB FT4 Contest Series
May 21 -- NAQCC CW Sprint
May 21 -- QRP Minimal Art Session (CW)
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.
New WSJT-X Beta Version Offers Significant FT4 and FT8 Upgrades
---------------------------------------------------------------
A new beta version of the WSJT-X software suite has been released, which
includes the first updates to the popular FT8 and FT4 protocols since last
fall. Co-Developer Joe Taylor, K1JT, said the "candidate release" WSJT-X
version 2.2.0-rcl incorporates significant program upgrades to FT8, FT4, and
other protocols. The beta version will be valid for a month.
"This candidate release is your first chance to test the new features and
provide feedback to the WSJT Development Group," Taylor advised. A list of
program changes since WSJT-X 2.1.2 is available in the cumulative Release
Notes and in the updates WSJT-X 2.2.0 User Guide.
The latest beta version corrects bugs that prevented AP decoding and/or
multi-pass decoding in some circumstances. The algorithm for AP decoding has
been improved and extended. FT8 decoding is now spread over three intervals
-- starting at 11.8 seconds into a receive sequence -- typically yielding
around 85% of the possible decodes for the sequence. "You, therefore, see
most decodes much earlier than before," the Release Notes explain. A second
processing step starts at 13.5 seconds, and a final step at 14.7 seconds.
"Overall decoding yield on crowded bands is improved by 10% or more," the
Release Notes say, although systems with receive latency greater than 0.2
seconds will experience smaller improvements, even while seeing many decodes
sooner.
Other changes:
The "contest mode" FT4 protocol always uses "RR73" for the TX4 message.
The status bar now displays the number of decodes in the most recent
receive sequence.
Release candidate WSJT-X 2.2.0-rcl will be available for 1 month (starting
on May 10). A general availability release of WSJT-X 2.2.0 is anticipated
for June 1.
Installation packages for Windows, Linux, and Macintosh are available on the
WSJT-X Development Group page. Scroll down to "Candidate release: WSJT-X
2.2.0-rc1." The packages are also available from SourceForge.
The WSJT-X Development Group request those using the new beta version of
WSJT-X to alert the developers and to report any bugs or improvements they
have implemented, using instructions included in the User Guide. Read more.
ARISS Sets Second Test of New Multipoint Telebridge Contact System
------------------------------------------------------------------
Amateur Radio on the International Space Station (ARISS) is hoping to refine
its new Multipoint Telebridge Contact via Amateur Radio system for handling
scheduled ham radio contacts between International Space Station crew
members and schools or organizations on Earth. On May 15 at 1510 UTC, it
will conduct a second test of the new protocol by connecting students in
Alberta, Canada, with an astronaut on the ISS.
The COVID-19 pandemic eliminated conventional opportunities for ARISS
contacts that typically involved large numbers of students and faculty
gathering at a school or educational institution for the event. The ARISS
multipoint telebridge system works around the issue by employing distance
learning within distance learning, as many schools around the world have
gone over to conducting classes remotely via teleconferencing, and students
are physically separated.
Under the multipoint telebridge concept, an amateur station in the footprint
of a space station pass at the time a contact has been scheduled serves as
an Earth station, making direct contact with NA1SS onboard the ISS. A
telebridge network then delivers two-way audio from the Earth station to
each student taking part in the contact. For the May 15 contact, John Sygo,
ZS6JON, near Johannesburg, South Africa, will operate the Earth station.
The students' families, faculty members, and even members of the public will
be able to listen in as each student at Airdrie Space Science Club in
Alberta -- a youth model rocket building and astronomy club -- takes a turn
asking a question of astronaut Chris Cassidy, KF5KDR. One question on the
list: "How has the COVID-19 pandemic affected you while you are in space?"
Brian Jackson, VE6JBJ, is a club leader. "During this pandemic, our
opportunities to develop kids' interest in space have been interrupted,"
Jackson said. "This ARISS contact gets them looking back up, towards the
sky, and imagining themselves as an astronaut one day."
Members of the public may view a livestream of the contact via YouTube.
ARISS is a cooperative venture of international amateur radio societies,
including ARRL and AMSAT in the US, and space agencies around the world that
support the International Space Station.
Two New Chinese Ham Satellites Expected to Launch in September
--------------------------------------------------------------
Two new Chinese amateur radio satellites are expected to launch on September
15. CAS-7A and CAS-7C follow in the wake of numerous amateur radio
satellites put into space by CAMSAT. CAS-7A, a 27-kilogram microsat, will
carry several transponders, including a 15-meter-to-10-meter (H/t) linear
transponder, and a 2-meter-to-70-centimeter (H/u) linear transponder. CAS-7A
also will include a V/u (2 meters to 70 centimeters) FM voice transponder.
According to the International Amateur Radio Union (IARU) satellite
coordination site, CAS-7A is planned to have CW beacons on both 10 meters
and 70 centimeters, 4.8k or 9.6k GMSK telemetry on 70 centimeters, and a 1
Mbps GMSK image data downlink on 3 centimeters for an onboard camera.
CAS-7C is a 2U CubeSat carrying a V/u linear transponder and a CW beacon.
IARU has not yet coordinated frequencies for CAS-7C, which is to deploy a
1,080-meter (3,543 feet) long, 1-millimeter carbon fiber rope.
The two satellites will launch from Jiuquan Satellite Launch Center into a
500-kilometer sun-synchronous orbit with an inclination of 98ø.
Some specifics, according to coordination information:
CAS-7A will offer 30 kHz-wide uplink and downlink passbands for all
linear transponders. The H/t uplink passband will be 21.245 - 21.275 MHz,
and the downlink will be 29.435 - 21.465 MHz. The CW beacon will be on
29.425 MHz.
The CAS-7A H/u linear transponder uplink passband will be 21.3125 MHz -
21.3275 MHz, and the downlink will be 435.3575 MHz - 435.3725 MHz. A CW
beacon will transmit on 435.430 MHz.
The CAS-7A V/u transponder uplink passband will be 145.865 MHz - 145.895
MHz, with a downlink passband of 435.385 MHz - 435.415 MHz. A CW beacon will
transmit on 435.430 MHz.
CAS-7A V/u FM transponder will uplink on 145.950 MHz and downlink on
435.455 MHz, with a 4.8k/9.6k GMSK telemetry downlink at 435.480 MHz. The 1
Mbps GMSK image data will downlink at 10.460 GHz.
Announcements
-------------
The older ARRL Magazines app for Amazon Kindle was failing to display
the new QEX and NCJ offerings. This problem appears to have been fixed in
the latest update. Kindle users may have to do a manual update. None of this
affects iOS or Android users.
The CWops' CW Academy (CWA) offers free, remote Morse code classes at
four separate levels -- beginner through advanced, running from not knowing
the code at all to reaching 25 WPM. CWOps also provides a CWOps Test (CWT),
an hour-long event every Wednesday at 1300 and 1900 UTC, and Thursdays at
0300 UTC. -- Thanks to The ARRL Contest Update
The Hamvention QSO Party is on Saturday, May 16. No need to submit logs;
post scores on 3830scores.com within 5 days of the event.
The 10th edition of the Youngsters on the Air (YOTA) Summer Camp, which
was to have been hosted by the Croatian Amateur Radio Association (HRS)
August 8 - 15, has been called off for this year, but will take place in
2021 at the same location. Also put off until next summer is the first Youth
On The Air in the Americas Summer Camp, which had been set for June 21 - 26
in Ohio.
The new, 1-hour World Wide Sideband Activity Contest exchange includes
age and sex, in these distinc: OM, YL, Youth YL (YYL), or Youth (Y). Winners
in the Single Operator and Single Operator Overlay categories can download
certificates. Plaques will be awarded for the highest overall cumulative
(1-year) score for each single operator and single operator overlay category.
The 2020 IARU World Amateur Radio Direction Finding (ARDF) Championships
in Serbia and the 2020 IARU World Youth ARDF Championships in Slovenia have
been canceled due to the COVID-19 pandemic. These will be rescheduled in
2021. Details are on the IARU Region 1 website.
The Rebel DX Group has postponed its planned DXpedition to Banaba Island
and Tuvalu due to the COVID-19 pandemic. Organizers remain hopeful of
resuming plans to activate Bouvet Island (3Y0I) late this year.
Special event P*75FREE/FREEDOM stations are marking the liberation of
The Netherlands by Allied Forces, ending World War II. The Dutch celebrate
the end of WW II each year on May 5. Ten different special call signs, such
as PA75FREE, will be active until the end of May, sponsored by the YNOMY DX
Group. Awards are available.
Amateur Radio Gains Significant Boost in UK by Connecting People During
-----------------------------------------------------------------------
Lockdown
--------
A recent BBC news feature has outlined how ham radio has gotten a
significant boost by connecting people during the COVID-19 lockdown in the
UK. The article, by Vanessa Pearce, quotes the Radio Society of Great
Britain (RSGB) -- the UK's IARU member-society -- as saying that many former
hams are now returning to the hobby. Mark Rider, G3VHJ -- a retired engineer
who lives alone in North Warwickshire -- said that after the lockdown
restricted his occasional trips to the pub, rehearsing with musician
friends, and visiting his wife in a nursing home, he decided to dust off his
ham radio equipment "to seek out some other social interaction." Rider said
that ragchewing has become one of the highlights of his day. "Just speaking
to somebody else in the same situation is very rewarding," he said. The
67-year-old told BBC News that keeping in touch with others has been more
important since his wife suffered a stroke.
RSGB General Manager Steve Thomas, M1ACB, said the society has experienced a
three-fold increase in license examination applications since social
distancing rules were put into place. The UK has about 75,000 amateur
licensees.
Eleven-year-old Anne-Marie Rowland, 2E0RUX, of Cornwall, worked with the
Cornish Amateur Radio Club to conduct informal twice-weekly nets to help
keep people in touch. "We have some regulars, but also some new people join
in," she told the BBC. Her father, Bill, M0NXF, runs a net that has
attracted older radio amateurs who are self-isolating, to help them feel
connected.
The RSGB recently instituted its "Get on the Air to Care" (#GOTA2C) campaign
in conjunction with the National Health Service and its GB1NHS amateur
station to promote amateur radio use during the pandemic lockdown. Some
stations have been adding /NHS to their call signs to support the effort,
which aim to support the emotional health and wellbeing of the amateur radio
community.
The RSGB introduced remote administration of entry-level Foundation-class
amateur radio exams in mid-April. Pete Sipple, M0PSX, told BBC News that
he's seen a "massive" surge in demand for training courses and exam session
and has had to up the number of course offerings.
In Brief...
-----------
Due to the COVID-19 pandemic and a record number of recent orders, ARRL is
currently experiencing delays in the fulfillment of orders. Combined with
excessive demands on many shipping carriers, our members and customers
should expect a 1 - 3 week delay in the delivery of their orders over the
next few weeks. State of Connecticut safety requirements limit the number of
employees allowed within the warehouse at one time to ensure their health
and safety, further contributing to the fulfillment slowdown. Warehouse
personnel are utilizing all available resources to get customers their
products as quickly as possible and anticipate that the standard 3 - 7 day
US delivery time will be restored sometime in June, once the state mandate
has relaxed. ARRL remains committed to making sure that all customers get
their orders as quickly as possible. We greatly appreciate everyone's
patience and understanding during this time and thank you for your continued
support of amateur radio and ARRL.
The transponder on HuskySat-1 has been activated and is open for use and
testing, AMSAT Vice President - Operations Drew Glasbrenner, KO4MA, reports.
"It's fairly sensitive, and 5 - 10 W is plenty most of the time. There are
some fades due to satellite orientation, and some passes are definitely
better than others. Strong signals may impact the beacon strength."
HuskySat-1 is the first CubeSat from the Husky Satellite Lab at the
University of Washington and the first mission with AMSAT's linear
transponder module (LTM-1), a V/u transponder and integrated telemetry
beacon and command receiver. University researchers recently completed their
Part 5 (Experimental) operations and have opened up the amateur radio
transponder, which is available for use in educational CubeSat missions that
are willing to enable the transponder for worldwide use. The HuskySat-1 V/u
transponder is inverting, with an uplink passband of 145.910 - 145.940 MHz,
and a downlink passband of 435.810 - 435.840 MHz. The 1200-baud BPSK
telemetry beacon is at 435.800 MHz.
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 4 - Pennsylvania State Convention, Harrisburg, Pennsylvania
July 16 - 19 - Montana State Convention, Essex, Montana
July 24 - 25 - Oklahoma State Convention, Oklahoma City, Oklahoma
Find conventions and hamfests in your area.
ARRL -- Your One-Stop Resource for
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