Two short items in today’s post: news of of a member’s recent travels, and addition of a neat new link on the club’s LINKS page. (click on highlighted item to see that page)
Debbie N4RTG and Jim N5RTG just returned from a cool week in the Virginia Highlands. We had a nice site at the Airstream park there at 2,800 feet elevation with fantastic views to the west. Temperatures were up to 15 degrees cooler than back here in Kannapolis NC, 25 miles from Charlotte NC.
While there, we put Debbie’s Eagle-1 antenna atop the Airstream. Winds were 5-10 mph during the install, so raising the 31′ vertical was a little challenging. Jim decided to try, next time, to stake out the guy ropes before raising the antenna. It will require some ninth grade geometry to get the ropes staked at the correct length for the vertical.
Safety is the reason — Jim is working at the trailer’s roof edge standing near the top of the ladder and levering a long whip (although light in weight) from a very short fulcrum. The guys, if layout is correct, will stabilize the antenna at install height so Jim will only need to steer the base of the antenna into the rooftop mount.
How did Debbie’s antenna work? This was the first instance of our using it with a new pair of MFJ bias tees, a 4116 and a 4117. These bias tees allow injecting (and importantly, removing) 12vdc on the coax from the operating position to the remote end. We are powering an SGC-237 auto-coupler at the antenna’s base, and the bias tees make this a lot simpler than running a dedicated 12vdc feed line along with the coax.
The setup worked fine, although conditions were so poor on 20m we couldn’t do a thing there and 40m was only a little better. Sometimes we have great luck in great locations, and less often we suffer like everyone else the varied and not-so-great propagation on the HF bands.
We’re looking forward to connecting our new home brew full-wave 40m delta loop with the bias tees at the in-law’s house. It should be interesting. More on this later.
And now item 2: Jim added today a new link to the WBCCI ARC LINKS page. We are glad to offer you this new link because this is a neat ham radio page you may enjoy browsing. The web site is attractive, has nice pictures, and a nice variety of things. The website might be a little bit much for your MacBook or iPad, but it worked great on the Windows computers we checked it with.
29 Aug 2013