Subj : Amateur Radio Newsline (D
To   : All
From : Daryl Stout
Date : Fri May 10 2019 06:10 am

INTERFERING WITH INTERFERENCE ITSELF

PAUL/ANCHOR: A group of interference-busting hams in Australia is helping
others tackle those troublesome sources of RFI, as Ed Durrant, DD5LP,
tells us.

ED: The latest addition to the Australia-based qrm (dot) guru website is
a list of parts to make up a "Kill QRM" kit, that will enable a Radio Ham
to seek out, and hopefully reduce if not remove sources of RFI. While the
references are made to buying from a local Australia-wide electronics
retailer, the list will be of value, no matter where you live.

For clubs in Australia, they are suggesting a combined bulk purchase of
the items to reduce costs.

The article on qrm (dot) guru states: This QRM GURU Kill-QRM-Kit is an
excellent starting point, for the equipment needed, to find and resolve
interference issues. It would be useful to supplement this kit with other
items, such as a general coverage portable receiver, an audio recording
device, and a camera. Many operators already have these items at their
disposal. The kit includes the parts needed to create a simple Direction
Finding loop antenna, which should only take 10-15 minutes to prepare.

There is no one universal solution to resolving interference issues. The
way forward may require a combination of the kit items, or more specialised
items not listed here. It is a starting point that will allow the
investigation to proceed.

The list can be found at the reference in our text script located at
arnewsline.org.

https://qrm.guru/kill-qrm-kit-information-sheet/

For Amateur Radio Newsline, I am Ed Durrant, DD5LP.

**

WORLD OF DX

In this week's World of DX, Andrey "Andy", R9YU, is active from Mongolia,
as JT9/R9YU, until the 12th of May. Listen on 40/20/15 meters, where Andy w
ill be using SSB. Send QSL cards to EB7DX.

Be listening for Bernd, DL9LBR, operating as OZ/DL9LBR, from Fano Island,
until the 11th of May. QSLs will be confirmed via the DARC QSL Bureau.

Be listening on the 17th of May, as hams in Australia call QR Zed, using
the "AX" prefix in their call signs, marking the 50th anniversary of
World Telecommunication and Information Society Day.

Fans of the Formula 1 Grand Prix of Azerbaijan, which was held on April
28th, can still work Special Event Station 4JF1EU, until the 31st of May.
The QSL manager is 4 J 3 DJ.

(OHIO PENN DX)

**

KICKER: WHEN HOMEBREW BREWS HAVOC

PAUL/ANCHOR: Our final story is about a homebrew device that created some
havoc - and a fox-hunting ham hero, who resolved it. Here's Stephen
Kinford, N8WB.

STEPHEN: There's nothing to match the skills of an amateur radio
fox-hunter, when it comes to outfoxing some of life's stranger mysteries.
In this case, it was a bizarre spate of garage door openers, and car key
fobs that suddenly stopped working, or worked intermittently in two small
cities, just outside of Cleveland, Ohio.

AT&T, the cable company, and the electric company, failed to solve it.
Enter the hunter: Dan Dalessandro, WB8ZQH, a professional TV, antenna,
and satellite technician, and enthusiastic ham radio operator. Dan told
Newsline in an email that research helped him determine this was a case
of interference occurring on 315 MHz, the part of the spectrum utilized
by keyfobs and garage door openers. Gathering up some of the equipment
he uses in his job, he drove off into the area, listening with the hope
of measuring the signal's strength as he got closer to the source. He
soon found the signal, and notified authorities. Media reports said the
problematic device turned out to be a homebrew battery-powered unit,
built by an area resident, who's an electronics buff. Its job was to let
the man know if someone was upstairs, while he was in his basement, by
turning on a light.

Local officials determined there was no malicious intent, and the battery
was removed. The inventor simply didn't know the chaos it caused -- but
even in a world of modern conveniences, the mystery couldn't outfox a ham
radio operator, with good old fashioned problem-solving skills.

For Amateur Radio Newsline, in beautiful Lake Norris, Tennessee, I'm
Stephen Kinford, N8WB.

(NEW YORK TIMES, DAN DALLESANDRO WB8ZQH)

**

NEWSCAST CLOSE:

With thanks to Alan Labs; Amateur News Weekly; Amateur Radio Experimenters
Group; the ARRL; CQ Magazine; Darren Holbrook, KH6OWL; FCC; Hap Holly and
the Rain Report; Joshua Shelton, KD8SLQ: New York Times; New Zealand
Association of Radio Transmitters; Ohio-Penn DX Bulletin; Oswego County
Today; Pamela Cantine, W2TQF; QRZ.COM; Southgate Amateur Radio News; Sun
City Grand Amateur Radio Group; Ted Randall's QSO Radio Show; Wireless
Institute of Australia; WTWW Shortwave; and you, our listeners, that's all
from the Amateur Radio Newsline.

Please send emails to our address at [email protected]. More
information is available at Amateur Radio Newsline's only official
website at arnewsline.org.

For now, with Caryn Eve Murray, KD2GUT, at the news desk in New York, and
our news team worldwide, I'm Paul Braun, WD9GCO, in Valparaiso, Indiana,
saying 73, and as always, we thank you for listening.

Amateur Radio Newsline(tm) is Copyright 2019. All rights reserved.
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