RAC Ontario Sections Bulletin for January 18, 2020

Paul Caccamo VA3PC

RAC Ontario Sections Bulletin for January 18, 2020

This is V__3____, Official Bulletin Station for Radio Amateurs of Canada, with this week's bulletin


1.  Puerto Rico Volunteers Deployed to Red Cross, ARRL Sending Equipment

Puerto Rico Section Manager Oscar Resto, KP4RF, reports that several Amateur Radio Emergency Service
(ARES) volunteers have been deployed to earthquake-ravaged regions of the island at the request of
the American Red Cross. Initial operations got under way in the town of Yauco, where the Red Cross
has a central warehouse for the earthquake relief effort. Operations are on VHF and UHF, although
commercial telecommunication services remain in operation for the most part. A station has also
been activated at the Red Cross Headquarters in the capital of San Juan, which is not in the
earthquake zone. Aftershocks continue on the island.

ARRL is shipping six VHF/UHF base/repeater antennas and six 50-foot rolls of LMR-400 coax, through
the Ham Aid Fund.

An HF radio was to be on site for backup on 20 and 40 meters. Power to the distribution center is 40%
from the power utility and 60% from generators.

Resto said over the weekend that he’d been told that the Red Cross was relocating the disaster relief
operation to Mayagüez, which is a much closer site to the initial impact area, and ARES will provide
communication support at the new site.

A 6.4 magnitude earthquake struck the southwestern part of Puerto Rico on January 7, fast on the heels
of a magnitude 5.8 tremor the day before. Resto said, engineers have determined that 80% of the
houses in the earthquake’s impact zone are uninhabitable.

Resto told ARRL last week that the earthquake disaster has definitely been a setback for the US territory
as it continues its long recovery from severe hurricane damage in 2017.

-- arrl news



2. Tickets for Hamvention Dinners are now available.

Tickets for three traditional dinners held in association with the 2020 Dayton Hamvention® in May
are now available — the DX Dinner, the Top Band Dinner, and the Contest Dinner.

The 35th annual DX Dinner, sponsored by the SouthWest Ohio DX Association (SWODXA), will take place on
Friday, May 15, at the Dayton Marriott, 1414 S. Patterson Boulevard in Dayton.
A social hour begins at 5:30 PM, with dinner served at 7 PM, an informal social gathering to follow.
Event tickets can be purchased via the SWODXA Events website, which includes program details.

The 31st annual Top Band Dinner for 160-meter enthusiasts will take place on Friday, May 15, in the
Presidential Ballroom of the Crowne Plaza Hotel in Downtown Dayton. A social hour starts at 6 PM,
with dinner to follow at 7 PM. Details are on the Top Band Dinner website.

The North Coast Contesters will sponsor the 28th annual Dayton Contest Dinner on Saturday, May 16,
in the Presidential Ballroom of the Crowne Plaza in downtown Dayton. A social hour begins at 5:30 PM,
with dinner served at 6:30 PM. Seating is random. Tickets are available via the Contest Dinner website.
No tickets will be for sale at the door.

3.  Norway Experiences Unexpected Ground Current “Shockwave”

Spaceweather.com reports that on January 6, unexpected electrical currents were detected in the soil of
northern Norway starting at around 1930 UTC.  “It seemed to be some kind of shockwave,” said Rob Stammes,
who monitors ground currents at the Polarlightcenter geophysical observatory in Lofoten.

NASA’s ACE spacecraft detected something as well. About 15 minutes before the disturbance in Norway, the
near-Earth interplanetary magnetic field abruptly swung around 180 degrees, and the solar wind density
jumped more than five-fold. According to Spaceweather.com, Earth may have crossed through a fold in the
heliospheric current sheet, described as “a giant, wavy membrane of electrical current rippling through
the solar system.” Such crossings can cause these kind of effects, the Spaceweather.com report said.
The ground currents were accompanied by spectacular displays of aurora borealis visible in Finland.

— Thanks to Spaceweather.com

4.Selecting the right type of antenna

There are very many different types of antenna to choose from: dipoles inverted Vs, single band, multiband,
doublets, verticals beams trapped dipoles, and many more. On top of this many can be home made or factory

While it can be very interesting to experiment, it pays to know which antennas are likely be the best for
any given station. The different characteristics can mean that some types are more suitable than others.

Read more about the more popular types of antenna used with ham radio stations: their characteristics as
well as the various advantages and disadvantages:

This concludes this week's bulletin. Does anyone require repeats or clarifications?
Hearing none, This is V__3____ returning the frequency to net control.

Bulletin sent from Official Bulletin Manager

Posted by: Paul Caccamo <va3pc @ rac.ca>

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