KH6JRM's Amateur ...
Follow
9.1K views | +26 today
Scooped by Russ Roberts
onto KH6JRM's Amateur Radio Blog
Scoop.it!

GB4WLR on the air this Sunday | Southgate Amateur Radio News

GB4WLR on the air this Sunday | Southgate Amateur Radio News | KH6JRM's Amateur Radio Blog | Scoop.it
This Sunday, 22nd of September, GB4WLR will be on air, for the annual 'Railways on the Air' weekend (GB4WLR on the air this Sunday | Southgate Amateur Radio News http://t.co/DRYxmKhxvA)...
Russ Roberts's insight:

Here's your chance to get a unique QSL card from the UK.  Aloha de Russ (KH6JRM).

more...
No comment yet.
KH6JRM's Amateur Radio Blog
Amateur Radio--news, analysis, discussion, and antennas
Curated by Russ Roberts
Your new post is loading...
Scooped by Russ Roberts
Scoop.it!

Excalibur Amateur Radio Satellite Antenna

A 21 element 2 meter and 70 cm yagi antenna for working SO-50, the ISS and other amateur radio satellites.
Russ Roberts's insight:

Nicely produced video tutorial from Dave Tadlock on the use of the 21-element Excalibur Amateur Radio Satellite Antenna.  The yagi covers both the 2 m and 70 cm bands, making this antenna suitable for contacts with SO-50 and other amateur radio satellites.  Aloha dr Russ (KH6JRM).

more...
No comment yet.
Scooped by Russ Roberts
Scoop.it!

ARNewsline Report 1914 -- April 18 2014: - eHam.net

ARNewsline Report 1914 -- April 18 2014: eHam.net Some U-K hams have openly speculated that the reason these statistics are no longer available is because the regulatory body had stopped undertaking enforcement action, at least in regard to those...
Russ Roberts's insight:

This edition of the "ARNewsline Report" is quite extensive and includes articles on the commissioning of the new ISS ham radio digital TV system, 40 meter interference from Sudan and Somaliland, an appeal to Ofcom from UK hams for the resolution of repeater problems, and the approval of the VK9MT (Mellish Reef) DXpedition for DXCC credit.  Aloha de Russ (KH6JRM).

more...
No comment yet.
Scooped by Russ Roberts
Scoop.it!

The Napier Amateur Radio Club “Q” VHF/UHF Antenna Project ...

The Napier Amateur Radio Club “Q” VHF/UHF Antenna Project ... | KH6JRM's Amateur Radio Blog | Scoop.it
This antenna was recently developed by Laurie, ZL2TC as a Club project for the Napier Amateur Radio Club. The design brief was for a simple, rugged 2 M/ 70 Cm antenna that is easily constructed by club members in an ...
Russ Roberts's insight:

Do you need a simple, rugged, and easily assembled antenna for 2m/70 cm?  This basic end-fed design from the Napier Amateur Radio Club, Inc (ZL2GT) could be your ticket to hitting those distant repeaters.  According to the club's press release, the antenna can be easily assembled and works as an end-fed dipole on 2 meters and a 3dB collinear antenna on 70 cm.  The club has a limited amount of these antennas available for sale.  For details, contact leezlal@gmail.com.  Aloha de Russ (KH6JRM).

more...
No comment yet.
Rescooped by Russ Roberts from Broadcast Engineering Notes
Scoop.it!

Broadcastify

http://www.broadcastify.com/listen/ "The world's largest source of public safety, aircraft, rail, and marine radio live audio streams."


Via David Hall
Russ Roberts's insight:

This is one of the better monitoring programs.  With broadcastify, you can listen to aircraft, rail, marine, public safety, and some amateur radio frequencies.  This site could be useful for ARES teams, search and rescue groups, and public safety organizations.  Aloha de Russ (KH6JRM).

more...
No comment yet.
Rescooped by Russ Roberts from Broadcast Engineering Notes
Scoop.it!

This Week in Radio Histor

Apr 16, 2005 
NRSC adopts NRSC-4 (United States RBDS) and NRSC-5 (United Sates IBOC) standards

Apr 17, 1934
WLW licensed to operate at 500kW

Apr 19, 1928
Harry Nyquist publishes Nyquist Sampling Theorem

Apr 19, 1965
Gordon Moore describes Moore's Law

Apr 20, 1961
FCC authorizes FM stereo standard


Via David Hall
Russ Roberts's insight:

Thanks to David Hall for another edition of "This Week In Radio History."  I remember all of the above except for the granting of 500 kW to Crossley's WLW-AM powerhouse.  The groundwave coverage of that super station was considerable.  Nowadays, WLW-AM coasts along at 50 kW--still a lot of juice.  The WLW website is fascinating.  Aloha de Russ (KH6JRM).

more...
No comment yet.
Scooped by Russ Roberts
Scoop.it!

200 Meters & Down: The Story of Amateur Radio: Clinton Desoto, Clinton B. Desoto: 9780872590014: Amazon.com: Books

200 Meters & Down: The Story of Amateur Radio

~ Clinton B. Desoto (author) More about this product
List Price: $12.00
Price: $8.00
You Save: $4.00 (33%)
200 Meters & Down: The Story of Amateur Radio [Clinton Desoto, Clinton B. Desoto] on Amazon.com. *FREE* shipping on qualifying offers.
Russ Roberts's insight:

This is one of the classic studies of Amateur Radio development in the United States, covering the years 1914 to approximately the early 1930's.  What makes the book so valuable is that Desoto was there when amateur radio made its first uneasy steps into communications history.    His account of how concerned volunteers and the nascent ARRL leadership (under Hiram Percy Maxim--"the old man) prevented "commercial interests" and the U.S. Navy from controlling the entire rf spectrum is worth a read.  There are lessons to be learned from this book, even in today's internet world.  When those opposed to amateur radio consigned hams to "200 Meters & Down",  they had no idea how productive those "useless" frequencies were.  Amateurs from the United States, France, Britain, Italy, and Australia conducted  experiments on these shortwaves and proved that long distance communications were possible with modest antennas and low power.  Because of this experimental work, medium wave and shortwave broadcasting "took off:..a true legacy of amateur radio's determination, public service, and "advancement of the radio art."  This book belongs in your amateur radio library.  Aloha de Russ (KH6JRM).
 

more...
No comment yet.
Scooped by Russ Roberts
Scoop.it!

Hollister recognized by state for years of volunteer work - Sierra Vista Herald

Hollister recognized by state for years of volunteer work - Sierra Vista Herald | KH6JRM's Amateur Radio Blog | Scoop.it
Hollister recognized by state for years of volunteer work Sierra Vista Herald beatrice.richardson@svherald.com Robert Hollister explains the capabilities of the Cochise County Mobile Communication van at the Cochise Amateur Radio Association...
Russ Roberts's insight:

An excellent article about one amateur radio operator's service to his community by "The Herald" reporter Derek Jordan.  Jordan interviewed Robert Hollister, a Sierra Vista, Arizona resident who will receive the Lifetime Achievement Award from the Governor's Office for his many years of volunteer service to Cochise County.  Under his guidance, Cochise County was able to expand its fleet of emergency communications vehicles, upgrade the communications capabilities of public service agencies,  and help coordinate search and rescue operations.  Speaking before a meeting of the Cochise Amateur Radio Club, Hollister said his "fascination with radio as a teen" led him to a career in electronics and communications.  During the Vietnam War, Hollister was a MARS operator, relaying radiograms and phone patches from service personnel to their families.  The award will be presented on 25 April 2014 at the East Valley Institute of Technology in Sierra Vista.  Aloha de Russ (KH6JRM). 

more...
No comment yet.
Scooped by Russ Roberts
Scoop.it!

St. Lucie County Community Calendar, updated April 17 - TCPalm

nSt. Lucie County Community Calendar, updated April 17
TCPalm
Port St. Lucie Amateur Radio Association: “How To Talk Around The World With A Basic Antenna.” 7:30 p.m. April 23. St. Andrew Lutheran Church, 295 N.E.

Russ Roberts's insight:

Antenna experimenters in the Port St. Lucie area are urged to attend a special program sponsored by the Port St. Lucie Amateur Radio Association.  The topic is "How To Talk Around The World With A Basic Antenna."  The discussion will be held Wednesday, 23 April 2014, 7:30 p.m., at St. Andrew Lutheran Church on Prima Vista Boulevard in Port St. Lucie.  For details, call 561-654-4444.  Aloha de Russ (KH6JRM).

more...
No comment yet.
Scooped by Russ Roberts
Scoop.it!

Simple Ham Radio Antennas: Time to head for the radio basement?

Those of you who follow my Amateur Radio News Blog (http://kh6jrm.com) on a regular basis may be aware of two related radio stories that will have a significant impact on the future of amateur radio and the rf spectrum that ...
Russ Roberts's insight:

Here's my "take" on Ofcom's realignment of amateur radio frequencies in the 2.3 GHz and 3.4 GHz bands.  Ofcom, and to a lesser extent our own FCC, has been under pressure to allocate more rf spectrum for broadband services, such as the internet, 4G cell phone service, and radio monitoring services.  It may be only a matter of time before the FCC relents and removes amateur radio from those bands, too.  This article was first published on my amateur radio antenna blog--http://kh6jrm.blogspot.com.  Aloha de Russ (KH6JRM).

more...
No comment yet.
Scooped by Russ Roberts
Scoop.it!

The STELAR Project 2014 - Southgate Amateur Radio Club

The STELAR Project 2014
Southgate Amateur Radio Club
Through its specialist courses, it has achieved much notable success in establishing radio clubs in schools and inspiring young people to seek careers in science, electronics and industry.
Russ Roberts's insight:

For over 20 years, "The STELAR Project" has supported amateur radio clubs in schools and inspiring young people to seek careers in science and industry.  STELAR is now expanding its focus to include "radio linked computing", thanks to the development of microprocessors such as  Raspberry Pi.  Educators are urged to apply for program development funds from "The STELAR Project" by 30 June 2014.  For details, visit http://www.stelar.info/contact. ; Aloha de Russ (KH6JRM).

more...
No comment yet.
Scooped by Russ Roberts
Scoop.it!

DxCoffee

DxCoffee | KH6JRM's Amateur Radio Blog | Scoop.it
expressly for dxers (Kilmarnock And Loudoun Amateur Radio Club | DxCoffee http://t.co/PtXnaYbwAM #ham #radio)
Russ Roberts's insight:

A nicely thought out website for the ardent DX hunter.  Most of the major DXpeditions are covered through a variety of means, including twitter, facebook, and other social sites.  Site navigation is pretty good and the information provided should be of help for those of us who chase elusive DX.  Aloha de Russ (KH6JRM).

more...
No comment yet.
Scooped by Russ Roberts
Scoop.it!

SK89WARD IARU – World Amateur Radio Day

SK89WARD IARU – World Amateur Radio Day | KH6JRM's Amateur Radio Blog | Scoop.it

JusSK89WARD IARU - World Amateur Radio Day (RT @dxcoffee: ENG SK89WARD IARU - World Amateur Radio Day - http://t.co/nJwbWyf1nH #hamradio #hamr #dx)

Russ Roberts's insight:

Just a reminder from Pete (SM5GMZ) that World Amateur Radio Day will be observed this Friday, 18 April 2014.  The event honors the 89th birthday of the International Amateur Radio Union (IARU).  Most national amateur radio societies will be using special calls to publicize the event.  If you need Sweden for your log, look for special callsign SK89WARD.  Aloha de Russ (KH6JRM).

more...
No comment yet.
Scooped by Russ Roberts
Scoop.it!

Car antenna for the 144-146 MHz - Simple amateur radio antenna

Car antenna for the 144-146 MHz - Simple amateur radio antenna | KH6JRM's Amateur Radio Blog | Scoop.it
The car antenna is a magnet for attachment to the roof (Ham radio antenna wire: Car antenna for the 144-146 MHz http://t.co/041dKvKkIJ)
Russ Roberts's insight:

An interesting Russian design for a 2 meter vehicle antenna.  Aloha de Russ (KH6JRM).

more...
No comment yet.
Scooped by Russ Roberts
Scoop.it!

A Century of Amateur Radio and the ARRL: - eHam.net

A Century of Amateur Radio and the ARRL:
eHam.net
Articles in QST described modern VFO and transmitter construction, small portable stations, antenna advances, and VHF/UHF equipment and techniques.
Russ Roberts's insight:

Another excellent installment of "A Century of Amateur Radio and the ARRL" by Al Brogdon (W1AB).  In this segment, Al recounts the gradual restoration of amateur radio frequencies following World War II, the reassignment of call sign areas, and the world-wide 10 meter QSO party of 1946 to celebrate the return of 10 meters to amateur radio use.  Great article.  Aloha de Russ (KH6JRM).

more...
No comment yet.
Scooped by Russ Roberts
Scoop.it!

Building a Ground Plane Antenna | Southgate Amateur Radio News

Randy Hall K7AGE has released a video showing how to build a 1/4 wave ground plane for the amateur radio 2m band.
Russ Roberts's insight:

If you're "fed up" with the mediocre rubber ducky antennas that come with HTs these days, you may want to build a simple 1/4 wave ground plane antenna to give your HT a real "boost" into those distant repeaters.  Thankfully, Randy Hall (K7AGE) has produced an excellent, step-by-step video tutorial to  guide you through the process of building this little gem.  Later on, you can try your hand at building a slightly more complex 5/8 wave vertical for your 2 meter rig.  Given sufficient height, both the 1/4 and 5/8 wavelength antennas can add some needed "punch" to your signal without spending a lot of money.  Randy's antenna is a good place to start.  Aloha de Russ (KH6JRM).

more...
No comment yet.
Scooped by Russ Roberts
Scoop.it!

The Massive Russian Radar Site in the Chernobyl Exclusion Zone - Newsweek

Newsweek
The Massive Russian Radar Site in the Chernobyl Exclusion Zone
Newsweek
From its surface emanate pairs of cylindrical wings, the “active element” of the antenna. These make the whole thing look like a flight of white butterflies ...
Russ Roberts's insight:

An excellent, personal memoir of the Chernobyl Exclusion Zone and the infamous "Russian Woodpecker" that tore up the amateur radio and shortwave broadcasting bands in the early 1980s.  Alexander Nazaryan takes on a tour of this once bustling military and commercial site in Ukraine that was changed forever by the nuclear accident of 26 April 1986.  The massive Duga-3 over-the-horizon HF backscatter radar station still stands as a reminder of just how tense geopolitics were more than 30 years ago.  The massive antenna now serves as a mecca for climbing and jumping enthusiasts...quite a change from its former intelligence gathering duties.  A cautionary tale, indeed.  Aloha de Russ (KH6JRM).

more...
No comment yet.
Rescooped by Russ Roberts from Broadcast Engineering Notes
Scoop.it!

TV Fool

Locate TV transmitters, choose antennas, look at coverage maps, and optimize your HDTV setup. Learn about digital TV and how to incorporate it into your home theater system. Rediscover over the air (OTA) TV. Looking for something more accurate than antennaweb?

Via David Hall
Russ Roberts's insight:

Don't let the title of this handy tool "fool" you.  The TV Signal Locator is a useful device that will determine which broadcast tv signals are available in your area.  You can also determine signal strength for each broadcast, over-the-air tv signal you can receive.  Aloha de Russ (KH6JRM).

more...
No comment yet.
Scooped by Russ Roberts
Scoop.it!

World Amateur Radio Day is Friday, April 18

World Amateur Radio Day is Friday, April 18 | KH6JRM's Amateur Radio Blog | Scoop.it
The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, information and resources.
Russ Roberts's insight:

World Amateur Radio Day will be observed on Friday, 18 April 2014.  Events of the day celebrate the 1925 founding of the International Amateur Radio Union (IARU) in Paris, France.  Eversince its creation in the early 20th century, the IARU has supported Amateur Radio around the world.  According to the ARRL, "Several IARU member-societies and associated groups are expected to sponsor special event stations this weekend to mark the occasion.  This might be a good way to spread some international goodwill and collect a some interesting QSL cards at the same time.  Aloha de Russ (KH6JRM).
 

more...
No comment yet.
Scooped by Russ Roberts
Scoop.it!

The K7RA Solar Update

The K7RA Solar Update | KH6JRM's Amateur Radio Blog | Scoop.it
The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, information and resources.
Russ Roberts's insight:

In addition to his excellent analysis of solar and propagation conditions,  K7RA has a brief article about the return of WWV to 25 MHz--a frequency abandoned in 1977.  According to WWV officials, the  broadcast is "carried on a base-fed broadband monopole antenna."  Since the transmissions are experimental, the signal may be withdrawn at any time.  Aloha de Russ (KH6JRM).

more...
No comment yet.
Scooped by Russ Roberts
Scoop.it!

Florida QSO Party (FQP) - Southgate Amateur Radio Club

Florida QSO Party (FQP)
Southgate Amateur Radio Club
There are many sponsored plaques and certificates for new and experienced contest operators alike.
Russ Roberts's insight:

This year's edition of the Florida QSO Party (FQP) will feature a true "multi-multi/mobile cw only station, using the call sign K4OJ/m.  The station "will be active in-motion" on 40 - 10 meters simultaneously through 46 Florida counties during the FQP on 26-27 April 2014.  The FQP "is the 2nd  largest state QSO Party with many mobile and fixed stations activating all 67 Florida counties on both cw and phone."  For details, visit http://www.floridaqsoparty.org.   Aloha de Russ (KH6JRM).

more...
No comment yet.
Scooped by Russ Roberts
Scoop.it!

New at DX Engineering -- 2014 FT5ZM Amsterdam Island DXpedition Receive ... - PR Web (press release)

New at DX Engineering -- 2014 FT5ZM Amsterdam Island DXpedition Receive ... - PR Web (press release) | KH6JRM's Amateur Radio Blog | Scoop.it
New at DX Engineering -- 2014 FT5ZM Amsterdam Island DXpedition Receive ...
PR Web (press release)
Now that system is available as a practically turn-key receive system that eliminates component-matching guesswork for Amateur Radio enthusiasts.
Russ Roberts's insight:

One of the reasons the FT5ZM Amsterdam Island DXpedition was so successful in its brief time on the air was the use of a special receiving antenna system designed by DX Engineering.  Now, this antenna system is being offered to the serious DX chaser who wants the ultimate DX receiving antenna. According to DX Engineering its FT5ZM package, complete with 1,000 feet of high quality coaxial cable, four active vertical antennas, an active relay unit, a control console, a sequencer, and compression connectors.  For details on this superb receiving antenna system, visit http://www.DXEngineering.com.  Aloha de Russ (KH6JRM).

more...
No comment yet.
Scooped by Russ Roberts
Scoop.it!

Media hits attributed to VK CQ Expo - Southgate Amateur Radio Club

ABC Local Media hits attributed to VK CQ Expo Southgate Amateur Radio Club Some of the aims of last weekend's PR4Amateur Radio Expo held throughout Australia, were community interaction and media coverage for Amateur Radio, with many successful...
Russ Roberts's insight:

According to Australian amateur radio operator Dave Nebe (VK4HAX) the recently completed "PR4 Amateur Radio Expo" accomplished its main goals of "community interaction and media coverage" for Amateur Radio.  In addition to the interest generated by exhibits, workshops, and guest speakers, a timely interview with Dave by the Australian Broadcasting Corporation helped send the message that amateur radio is alive and well "down under."  Thanks to the hard work by our amateur radio friends in Australia, amateur radio sent out a positive message that may encourage others to become licensed hams and to better serve their communities.  Amateur Radio clubs in the United States should follow Australia's example, especially now that "Field Day" is coming in June.  Why not arrange for an interview with a local radio or television station?  Or perhaps, one of your club members could write an article about Field Day for your local newspaper.  If you do this, your club can earn 100 extra points on your Field Day log submission.  This would be a win-win for your club and the media outlet.  You get publicity, while the radio/television gets credit for public service and community programming.  Aloha de Russ (KH6JRM).

more...
No comment yet.
Scooped by Russ Roberts
Scoop.it!

UK school pupils to use ham radio to track balloon | Southgate Amateur Radio News

Students at Bolton School will track the flight of their high altitude balloon with amateur radio equipment (Amateur Radio - UK school pupils to use ham radio to track balloon: Students at Bolton School will t...
Russ Roberts's insight:

Students at the Bolton School in the UK will be using amateur radio equipment to track the flight path of their soon- to- be launched high altitude balloon.  Under the direction of Alec Jones and Chris Walker (G0VUX), students designed and built the balloon package.  Students also wrote the software for the onboard computer.  Many schools that started using high altitude balloon ended up designing microsats for low earth orbits (LEO).  Aloha de Russ (KH6JRM).

more...
No comment yet.
Scooped by Russ Roberts
Scoop.it!

ARES E-Letter Issues

ARES E-Letter Issues | KH6JRM's Amateur Radio Blog | Scoop.it
The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, information and resources.
Russ Roberts's insight:

The ARES - E Letter from the ARRL is chocked full of interesting articles, even if you're not a member of the Amateur Radio Emergency Service (ARES).  In this edition, there is a careful examination of what Mike Corey (KL1U) calls the "shared community" concept of emergency communications.  Corey wrote about the idea in the May 2014 issue of "QST".   Aloha de Russ (KH6JRM).

more...
No comment yet.
Rescooped by Russ Roberts from Broadcast Engineering Notes
Scoop.it!

Introduction to Microphones - YouTube

In the first of a series of videos tutorials on microphones, Doug Ford, former head designer at Rode Microphones explains the basics of how microphones work,...

Via David Hall
Russ Roberts's insight:

Excellent tutorial on microphones from the former head designer at Rode Microphones.  Simple, clear explanations.  Aloha de Russ (KH6JRM).

more...
No comment yet.