Antenna Is Up … And It Works Great!

The mast is up! G5RV Is Next
The mast is up! G5RV Is Next

I tried 3/4″galvanized steel conduit and it wasn’t going to hold up. Far too much wiggle in the mast and it was impossible to get stood up without bending. So, I left the 10′ section of 3/4″ conduit as a kind of a gin-pole and went to 1-1/4″ galvanized steel conduit. The smaller size was rated for about 95 pounds while the larger size was rated for about 275 pounds.  A significant difference for sure. So, yesterday afternoon everything was ready for the mast to be walked up into place.

A couple of fellows in the neighborhood volunteered to come over to help. It took about 10 minutes to put the mast into position, cinch it down, and hoist up the messenger line with the coax. That was enough for Tuesday evening. The finishing touches would wait until today (Wednesday, April 25th).

The Messenger Line and Coax to the House
The Messenger Line and Coax to the House

The messenger line keeps the coax up in the air and above our heads. I did manage to guess correctly on how many carabiners were needed on the messenger line.

At the top of the mast I put a 2-meter J-pole antenna which will eventually be connected to an AllstarLink node. I just need to find my Raspberry Pi computers. There in a box somewhere!

Looking Up the Mast
Looking Up the Mast

This afternoon I completed the work to finalize the bracing for the mast and attached the LMR-400 coax to the window line coming down from the G5RV.

It’s in the later evening on the 25th now and I’m listening on the 40 meter band. That band is really booming tonight. I’m hearing signals from coast to coast as well as north and south. Just finished a QSO with Eric, KK6F in southern California. He was copying my 100 watt signal at a 57-58 whereas his amplified signal at 400 watts was booming into here. I think the antenna works. I sure is quiet compared to the G5RVJr up on my roof!

 

By Golly! It Pivots … Just Like Designed!

Pivot Installed ... and It Works!
Pivot Installed … and It Works!

After letting the concrete harden over the weekend, Jimmy “The Handyman” came over on Monday. We pulled out the forms and filled in the hole. There was just enough dirt to be able to fill the hole, but I’m sure it’ll settle and compact. I really appreciated Jimmy’s help. I can get the rest of the project done now.

Yesterday I drilled a hole in the rigid conduit and the 4×4’s but ran out of time. This morning the next step came together. The holes lined up (!!) and the pivot point is in place.

So, the first ten feet of mast is ready. Twenty-five feet left to go!

The remaining steps?

  • Get three more lengths of rigid conduit from Home Depot, nineteen carabiners, and 100′ of paracord
  • Cut one of 10′ lengths of rigid conduit to a six-foot length (put the 4′ section aside for some possible future project)
  • Screw the two 10′ sections and the one 6′ section together with the section already installed. Make sure they’re tight
  • Install a hook about 12′ up for the messenger line coming from the house
  • Tie carabiners every foot and a half along the paracord messenger line. The two coax cables will ride along the messenger line in the carabiners. The messenger line length is 29 feet from the house to the mast
  • Install the pulley for the G5RV center and pull rope
  • Install the 2-meter J-pole
  • Measure (thrice), mark (twice) and cut the coax to length
  • Install connectors on both ends of the coax cables
  • Thread the coax cables through the carabiners
  • Connect the coax for the J-pole to the J-pole
  • Lift the mast upright and secure to the 4×4’s
  • Secure the bottom of the window-line for the G5RV antenna. The window-line needs to be at least six inches away from the conduit so they don’t interact
  • Connect the coax to the G5RV antenna
  • Pull the center of the G5RV antenna upright
  • Cheer and celebrate
  • Try out the antenna!!