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19th July 2013

Photoset with 6 notes

Portable delta loop feedpoint/insulator & balun.  Balun is in the pink container.  Coax will attach where red & green wires are on front bottom, and feed through the balun which is plugged in on the backside, and then to the antenna wire (green) which is fed through some of the mounting holes on the sides for strain relief.

The arrangement should provide flexibility to allow other wire antenna types and baluns (2:1, 4:1, etc.) to be used. The other mounting holes will be used for support cord.  Apex of the delta loop and other corner will be set/hung by large clothing buttons.


Perhaps an expensive approach if you had to purchase the binding-post wall plate, but I was given a bagful by a fellow ham, so the price (for me) was right.

Tagged: ham radiohamradioamateur radioamateurradiohomebrewantennaantennasqrpportable communications

11th June 2013

Photoset with 9 notes

My new portable 6m Moxon. Assembled in the basement Saturday morning and tested on the deck prior to the June VHF contest. 

  • Spreaders - 4 Fiberglass driveway markers (48”)
  • 16 gauge wire - 20’ or so
  • Two pieces of 1/2” copper pipe for hub- flattened in center, ends bent out 20 deg from centerline.
  • U-bolt - attaches two copper pipe pieces back to back and holds antenna to mast
  • Gap Spacers - Two pieces roughly 4.5” each, wire zip tied along top
  • Paracord - four small loops to thread wire through, zip tied to ends of spreaders
  • Zip ties - many, as needed
  • Coax - RG8X

Aside from the coax, mast and hub, entire antenna collapses down into about 2” x 48”.  Hub is about 12” x 5” x 1/2”.

Tagged: moxonantennasham radiohamradioamateur radioamateurradiovhfhomebrew

19th November 2012

Link with 1 note

Which Aerial? (article Radio Communications 1968) →

Article on antenna testing undertaken in 1968 by the Medway Amateur Receiving and Transmitting Society.

Tagged: antennasamateur radioham radioradioantenna

29th August 2012

Link with 1 note

Building a VHF or UHF Ladder Line J-Pole Antenna →

Tagged: antennaantennasham radioamateur radio

14th August 2012

Link with 1 note

The G5RV Myth →

No one can deny that the various commercial G5RV antennas are a story of marketing and sales success.  But from a performance standpoint - no so much.  The article link takes you to a discussion of what the G5RV is and isn’t. Without a great tuner, the emperor has no clothes. But, with some adjustment in radiator and feedline length and feedline impedance, another derivative (see the last paragraph) gets fairly close to the mythical ‘all-band antenna’.

Tagged: ham radioamateur radioantennaantennasg5rvg0fahzs6bkwradioqrp

24th June 2012

Link

They Dared to Compare →

Tagged: antennaamateur radioantennasham radio

23rd June 2012

Video with 1 note

Elecraft KX3 Antenna Ideas and Connectors (by n4ktz)

Tagged: ham radioamateur radioantennasqrp

Source: youtube.com

19th June 2012

Post

Super Antenna Restarts Antenna Business; Launches New Website

Super Antenna Restarts Antenna Business; Launches New Website Legendary MP1 and YP3 Back in Production SAN MATEO, Calif., USA—June 18, 2012— SuperAntenna Corporation, maker of the legendary MP1™ Portable Antenna and YP3™ Portable Yagi, announced today the full restarting of the Super Antenna business begun in 2000 by Vern Wright, W6MMA. The new company, now a California high technology corporation, has begun shipping the MP1™ Portable Antenna and the YP3™ Portable Yagi, both re-engineered to a higher standard of performance.

Super Antenna also announced a new web site where hams radio operators can get information on Super Antenna products, download technical papers and manuals or purchase Super Antenna products and accessories. The new website is available at http://www.newsuperantenna.com.

"We are very pleased to reopen Super Antenna to the ham community worldwide. The response from our ham friends around the world has been magnificent and we look forward to providing the best portable antennas and accessories available," said Super Antenna founder and President Vern Wright W6MMA.

SuperAntenna Corporation is located in San Mateo and Lincoln, California, and develops, markets and sells a line of portable antennas and accessories worldwide under the trademark “SuperAntenna™”. SuperAntenna Corporation is the only manufacturer of genuine SuperAntenna™ products.

The Super Antenna™ and SuperAntenna™ names and MP1™ and YP3™ are trademarks of SuperAntenna Corporation. All rights reserved worldwide.

Further information about Super Antenna may be found on its web site at http://www.newsuperantenna.com Contact: June Wright at SuperAntenna Corp 1-916-434-9225 (9:00 AM - 4:00 PM PT)

Download this press release in PDF file format: http://newsuperantenna.com/Super-Antenna-News/#press

Tagged: ham radiohamradioamateur radioamateurradioantennaantennasqrp

26th May 2012

Link with 1 note

Saturday Breakfast - Eggbeater Antennas →

Tagged: antennahamradioamateurradioradioantennas

25th May 2012

Link

How to build your own Magnetic Loop →

Tagged: antennaamateur radioantennashamradioham radiohomebrew

15th May 2012

Link with 1 note

Wealth of Antennas from RSARS →

Lots of antenna articles available on the UK’s Royal Signals Amateur Radio Society.

Tagged: antennaantennasamateur radiohamradioradio

11th May 2012

Link

NJQRP Gets Loopy →

Check out the NJQRP club’s recent ‘Chat with the Designers’ regarding mag loop antennas, their properties and construction.  The link above will take you to the meeting notes, where you can listen to the mp3 audio and follow along with the pdf slideshow.

Tagged: antennaantennasamateur radioham radioqrp