2008-11-22

On CC&R DXpedition Model | Project 3BTV Halted

The property in front of our terrace belongs to the home owners association (HOA). Theoretically, my 3BTV was a good fit however raising HOA attention was not and we decided against the idea. Initially, the antenna seemed concealable enough then once I raised the aluminum, its mass was visually inescapable. Yet, I felt Project 3BTV, was achievable.

Retreat was necessary.

Problems seeking solutions.
I decided being pragmatic as a practical approach. The above photograph visually describes the obstacles confronting Project 3BTV. A ground mounted vertical 4-inches above adobe like soil sandwiched between a pair of condos is not effective. My 88-foot doublet fed with 450 Ohm window line deployed on a 33-foot push-up mast is, hands down, a better antenna system given this set of problems.

21st Century Antenna Systems.
There is little wiggle space for anything approaching a normalized antenna system. This is perhaps a common theme for some but not all low-profile high frequency (HF) operators. Antennas designed for open spaces with sufficient vertical and horizontal dimensions are 20th Century.

The 21st Century antenna system presents unique engineering challenges. Being loud gives way to being heard. That is, I'm trading off loud as understood in the 20th Century for being heard in the 21st. Antenna systems energized with levels of energy approaching 1500 watts are subsumed by energy levels approaching 100 watts or less into suboptimal antennas.

Within a suburban setting being heard is sufficient. However it does not mean giving up on the idea of approaching a normalized antenna system.

One step forward, two steps back.
I'm looking at the DXpedition model of operation for inspiration. This model, for me, best exemplifies operational dilemmas that many CC&R and/or HOA HF operators face. My possibilities, on the other hand, are vertically unlimited as I retreat to the drawing board.

73 from the shackadelic.

Logo | KA3DRR

I designed my logo for KA3DRR LowPower, LowProfile RadioSport Contesting At 50 Watts. The logo is open source. No copyright other than Creative Commons Attribution 3.0 United States.

73 from the shackadelic.

P.S. Time for Project 3BTV.

2008-11-20

On CC&R DXpedition Model | Project 3BTV Status

Wanted to bring everyone current on Project 3BTV this evening. I finished the copper loop for the radial system and will solder the connection this evening. The radial system loop is an old piece of 12AWG +/- 2AWGs of stripped copper wire. I spent Tuesday evening removing inch length pieces of insulation. And caught up on a few Pod Casts as well.

Has anyone seen the price of copper? I have. And I'm suffering from copper shock. I'm cutting 1/4 wavelength radials for 10, 15, and 2om this evening. I purchased 500-feet of insulated 14AWG stranded copper wire for sixty dollars. There is enough copper wire in the shackadelic to build antennas for many years to follow.

Soldering of the radial system follows tomorrow evening. Then I'm deploying my 3BTV for standing wave ratio checks through Saturday afternoon and low-profile locations in front of our condo unit. I want to find a location that is both neighbor and reception friendly. Expect pictures to follow on my CC&R DXpedition Model | Project 3BTV through the weekend.

Contest on.

On HamSphere | Kelly, SM7NHC communicated "The software has now been updated and everyone can hopefully enjoy HamSphere..."

Received an email from Kelly, SM7NHC reporting a glitch in the software. I'm not a programmer but coding from my perspective requires perfection and one sliver of an error might take down a server. And Kelly mentioned a problem in the Window's default character set. However HamSphere is now back on-line with new and corrected software (link) according to SM7NHC's email.

73 from the shackadelic.

2008-11-18

Bob, VE3MPG commented "I enjoy your blog every day. Great stuff all around. A must read blog."

Read comment (link).

I'm having a lot of fun writing about RadioSport, DXing, casual operating, and award chasing. The joy is communicating my lesson's learned while gaining an education as well. I recently wrote, that my technical expertise, is as close as Neptune is to the sun. However ham radio appeals to the 'engineer' inside of me.

And ham radio is developing that engineer. Bob, thank you, for your kind comment this evening.

73 from the shackadelic.

On Sperry DM-210A | Mac, KE5QDA suggested "Take it from an old electrician...change the battery once a year just to keep it accurate."

Read comment (link).

Roger that. I made note on the instruction manual. Thanks for the suggestion!

73 from the shackadelic.

2008-11-17

My First Digital Multi-Meter | Sperry DM-210A

I bought my first ever digital multi-meter this weekend. A Sperry DM-210A (link) with a volt sensor as well. I'm stoked.

DM-210A Specifications (link).

  • Sample rate is 3 times per second.
  • 9V Transistor Type Battery.
  • Battery life expectancy is 200 hours typical with zinc carbon.
  • Basic accuracy is 1.5 percent (DC).
  • Resolution is 1mV (DC).
  • Basic accuracy is 2.5 percent (AC).
  • Resolution is 100 mV (AC).
73 from the shackadelic.