Home Page, Grand Rapids Amateur Radio Association

See on Scoop.itKH6JRM’s Amateur Radio Blog

Home Page for the Grand Rapids Amateur Radio Association Web Site W8DC.org (GARA,HAM RADIO, ARDUINO:

Grand Rapids Amateur Radio Association: This link has great
Ardunio and Amateur Radio…

Russ Roberts‘s insight:

Informative website of the Grand Rapids Amateur Radio Association.  Lots of interesting information here.  Aloha de Russ (KH6JRM).

See on www.w8dc.org

7P8DJ – Lesotho

See on Scoop.itKH6JRM’s Amateur Radio Blog

DJ2HD will be active from Lesotho 22-24 December 2013 as 7P8DJ (News of Ham Radio Expedition Shares. N7PB http://t.co/9jJBRdgrZb)

Russ Roberts‘s insight:

A fairly rare contact from the African state of Lesotho.  DJ2HD will operate as 7P8DJ from 22 December 2013 through 24 December 2013.  Aloha de Russ (KH6JRM0.

See on dxing.at-communication.com

V4/DF8AN – Saint Kitts and Nevis Islands

See on Scoop.itKH6JRM’s Amateur Radio Blog

DF8AN wil be active from Saint Kitts and Nevis Islands 15-19 November 2013 as V4/DF8AN (Ham Radio Expedition Share. N7PB http://t.co/TFdTpcS6re)

Russ Roberts‘s insight:

St. Kitts and Nevis Islands will be activated by DF8AN from 15 November 2013 through 19 November 2013.  Aloha de Russ (KH6JRM).

See on dxing.at-communication.com

5A1AL – Libya

See on Scoop.itKH6JRM’s Amateur Radio Blog

DL1AL is currently active from Libya as 5A1AL (Ham Radio Expeditions Share.N7PB http://t.co/SCnAjsgBvB)

Russ Roberts‘s insight:

Get this one while you can.  D:1AL is operating as 5A1Al from Libya.  Aloha de Russ (KH6JRM).

See on dxing.at-communication.com

Our ‘Thumbs’ for October – Pomerado Newspaper Group

See on Scoop.itKH6JRM’s Amateur Radio Blog

Our ‘Thumbs’ for October
Pomerado Newspaper Group
THUMBS UP to the Poway City Council for approving a resolution to waive the $719 fee for applications for amateur radio antennas up to 35 feet in height.

Russ Roberts‘s insight:

A small, but significant victory for amateur radio operators.  Thirty-five feet isn’t much, but that’s better than paying $719 for putting up an antenna.  At that approved of height, a quarter wave vertical for 40 meters is doable.  Aloha de Russ (Kh6JRM).

See on www.pomeradonews.com


A 40-10 Meter sloping Delta Loop Antenna. Post #238.

A one-wavelength loop is one of my favorite antennas.  Loops may be built in a square, circular, rectangular, of triangular form to create an effective, inexpensive antenna.  Loops can be built for single band service using coaxial cable and a quarter wave transformer or for multiple band use employing 450 ohm ladder line fed into a 4:1 balun and then into an antenna transmatch.  A small length of 50 ohm coaxial cable with UHF fittings can be used to connect your transceiver to the transmatch.

For my growing antenna farm at my new homesite in the Puna District of Hawaii Island, I needed an antenna which would give me good local coverage for local state wide nets and a decent signal for DX work.  From my location on Hawaii Island, almost anything beyond Hawaii counts as DX.  I elected to build a simple, one wavelength long sloping delta loop supported by a telescoping fiberglass mast and supported at the bottom ends by two wooden stakes.

In order to cover 40 through 10 meters, I designed the delta loop for the lowest frequency of use.  In this case, that frequency was 7.088 MHz, the meeting place of the daily Hawaii Afternoon Net.  I would operate the loop on its various harmonics with 450 ohm ladder line, a W9INN 4:1 balun, a short length of 50 ohm coaxial cable, and my trusty Drake MN-4 transmatch.  I would use my MFJ 941-E Versa Tuner and my Argosy II transceiver for 30 meter contacts.  For the remaining bands, I could use either the Argosy II or the old Swan 100 MX.


One 33-foot (10.06 meters) MFJ telescoping fiberglass mast.  The mast would support the apex of the delta loop.

Three ceramic insulators–one at the apex of the loop and the other two at the bottom two ends of the loop.

#14 AWG housewire.  This is sturdy material and will stand up to the tropical heat and rain.   You could also use whatever wire you have in the shack.  I’ve found #18 speaker wire from Radio Shack a good alternative wire source.  Using the general formula 1005/f(MHz)=L(feet) and my preferred frequency of 7.088 MHz, the total length of the loop came out to be 141.78 feet/43.22 meters.  Each side of the delta loop would be 47.26 feet/14.40 meters.

Fifty feet/15.24 meters of 450 ohm ladder line. This would be the feed line for the antenna.

One W9INN 4:1 balun.

A sturdy transmatch.  I had a Drake MN-4 and a MFJ 941-E Versa Tuner at my disposal.

One 5-foot/1.52 meters wooden support stake for the fiberglass mast.

Two 6-foot/1.82 meter wooden stakes to support the bottom of the delta loop.

Short pieces of Dacron rope to tie off the bottom loop element to its stakes and to attach the upper portion of the loop to the top of the mast.

Basic tools, including a soldering gun, vinyl electrical tape, pliers, and nylon ties.


The delta loop was built on the ground.

I laid out the antenna wire on the lawn in back of my garage, with each side measuring 47.26 feet/14.40 meters.  The wire was threaded through 3 ceramic insulators.  At the lower right hand corner of the loop, attached the 450 ohm ladder line.  All connections were soldered and covered with several layers of vinyl electrical tape.

I attached the top of the delta loop to the tip of the mast.  The ceramic insulator was secured by nylon ties and vinyl electrical tape. 

I hoisted the mast onto its support stake, pulled the loop away from the mast at about a 45- degree angle, and secured the bottom of the loop to two 6-foot/1.82 meter wood stakes. Short pieces of Dacron rope attached the ceramic insulators to the wooden end stakes.  Some minor adjustments were made so that the delta loop assumed a uniform shape as it came away from the fiberglass mast.

The 450 ohm ladder line ran from the right hand bottom insulator to the W9INN 4:1 balun on the garage wall.  The balun was about 5 feet/1.52 meters) above ground.  At no time was the ladder line allowed to touch the ground.

A twenty-five-foot/7.62 meters length of RG-8X coaxial cable with UHF fittings was attached to the balun. The coaxial cable was run into the shack through a homemade patch panel in the shack window.  The cable was connected to the Drake MN-4 antenna transmatch.  From the transmatch a series of 3-foot/0.91 meter coaxial patch cords connected the transceiver, dummy load, and low-pass filter to the Drake MN-4.  I also added a 33-foot/10.06 meter “counterpoise” wire to the ground lug of the Drake MN-4 transmatch.


With the help of the Drake MN-4 transmatch and the MFJ 941-E Versa Tuner, I was able to get a 1:1 SWR reading on all amateur radio frequencies from 40 through 10 meters.  Daytime coverage on 40 meters is excellent with 57 to 59 reports on ssb and 579 to 599+ on cw.  Despite the loop’s proximity to ground, I’ve been able to get some excellent DX on 20 and 15 meters.  Ten meters has ranged from good to poor, depending on the time of day and propagation.  Most of my DX work on 20 and 15 meters has ranged from 56 to 59 on ssb and 569 to 599 on cw.  I ran the Swan 100 MX at 50 watts and the Ten Tec Argosy II at approximately 20 to 25 watts.

The sloping delta loop is a simple, inexpensive antenna that will deliver good results for both local and DX contacts.  Unlike my vertical antennas, I didn’t need a ground radial system to get decent performance.  Wire antennas are fun to build.


DeMaw, Doug (W1FB).  Novice Antenna Notebook.  ARRL, Newington, CT., 06111.  First Edition, 1988.  pp 78-89.
Noll, Edward M. ( W3FQJ).  73 Vertical, Beam, and Triangle Antennas.  Editors and Engineers, Ltd.  New Augusta, Indiana.  Seventh Printing, 1979.  pp 126-138.

Thanks for joining us today.  You can follow our blog community with a free email subscription or by tapping into the blog RSS feed.

Aloha es 73 de Russ (KH6JRM).

BK29jx15–along the beautiful Hamakua Coast of Hawaii Island.


Wake Atoll Commemorative DXpedition – Southgate Amateur Radio Club

See on Scoop.itKH6JRM’s Amateur Radio Blog

Wake Atoll Commemorative DXpedition
Southgate Amateur Radio Club
… Lou-N2TU, Jim-N9TK, Mark-NA6M, Dick-W3OA, Joe-W8GEX, Hal-W8HC, and Jerry-WB9Z.

Russ Roberts‘s insight:

The Wake Atoll Commemorative DXpedition is on!  The team arrived in Honolulu on 30 October 2013.  The 12-member contingent will leave Honolulu on 01 November 2013 and will arrive on the atoll on 02 November 2013.  The team will be QRV from 03 November through 15 November 2013 (Wake time).  For details, visit http://wake2013.org/.  Aloha de Russ (KH6JRM).

See on www.southgatearc.org

Ham Radio exams increase at Cal Poly – Southgate Amateur Radio Club

See on Scoop.itKH6JRM’s Amateur Radio Blog

Ham Radio exams increase at Cal Poly
Southgate Amateur Radio Club
When the Cal Poly Amateur Radio Club (CPARC) hosted its quarterly Amateur Radio test session this month, 91 individuals turned up to earn their Technician tickets.

Russ Roberts‘s insight:

Good show by the Cal Poly Amateur Radio Club!  Cal Poly should have a good reservoir of potential hams.  Aloha de Russ (KH6JRM).

See on www.southgatearc.org

John Bluff G3SJE – SK – Southgate Amateur Radio Club

See on Scoop.itKH6JRM’s Amateur Radio Blog

John Bluff G3SJE – SK
Southgate Amateur Radio Club
John Bluff G3SJE – a stalwart member of the Edgware & District Radio Society became a Silent Key on Sunday October 27th after being ill for some time.

Russ Roberts‘s insight:

Deepest sympathy to John’s family and his fellow hams of the Edgware & District Radio Society.  He will be missed.  Aloha de Russ (KH6JRM.

See on www.southgatearc.org

Reservist’s amateur radio skills lynch pin for emergency responders – Air Force Link

See on Scoop.itKH6JRM’s Amateur Radio Blog

Reservist’s amateur radio skills lynch pin for emergency responders Air Force Link Hodge, 6th Space Operations Squadron Non-Commissioned Officer in Charge of standardization and evaluation, uses his amateur radio skills to support emergency…

Russ Roberts‘s insight:

Nice article about Air Force Reservist Tech Sgt David Hodge and how he uses his communications skills not only for Air Force-related tasks but also for helping his community during emergencies.  Aloha de Russ (KH6JRM).

See on www.af.mil

%d bloggers like this: