Spring Cleanup, Antennas, Tree, Gardens, Laser Engraver and Stuff

It’s spring. Sort of?

This is sort of a catchup post because I haven’t really had enough material to justify doing an update to the blog until now, so let’s get started.

It’s spring cleanup time. Or at least that’s what the calendar tell me. Outside, though, well, it’s been bloody cold and nasty. We had about only three days here where the temperature got above fifty. Mostly it’s been in the 40s, even dipping as low as the mid twenties at night. Not exactly my idea of April weather.

It’s still a mess back here but it’s starting to look a lot better. Spent almost an entire day cleaning up the yard.

It’s a mess back there in the yard, alas. MrsGF and I have been working on cleaning up the debris left from the winter and it’s starting to shape up now finally. The old ash tree in my yard and the dying maple in my neighbor’s both have been shedding branches and bark all over. The smoke you see in the photo up there is because we lit the fireplace back there both to warm up and to deal with the twigs and sticks and bark that had come off the trees during the winter.

We’re probably going to do a major expansion of the corner garden in the photo up there. That’s prime growing area there in that corner. It faces the south west so it gets full sun almost all day long, with light being reflected off the white siding, and in that sheltered area it’s the first ground to thaw in the spring and the last to freeze in the fall, and it’s very well drained. We’re going to expand that area in a semicircle out past that post with the birdfeeder, and it’s going to extend along the right side of the house past the downspouts. That will more than double the amount of square footage we have there.

Back here hopefully within a couple of weeks that big tree will be gone. It looks relatively healthy but it really isn’t. It sheds branches like rain drops whenever there is a stiff breeze and up near the top of the tree it’s starting to rot where to large branches come together off the main trunk. It’s also an ash tree so I’m surprised the emerald ash borer hasn’t attacked it yet. If we don’t take it down soon a good wind storm will take it down for us. We already had a tree service come in to look at it, and as soon as it dries out enough for them to get their equipment in there without sinking into the ground it’s coming down, along with the neighbor’s dying maple.

Getting that tree out of there will also open up a large part of the yard to full sun so we can grow a lot more stuff. We aren’t quite sure what we’ll do with the area but we’ve been sketching out some preliminary plans for a large decorative feature. Maybe. Depends on how ambitious we get.

Antenna stuff: I finally got the new off center fed dipole up when we had a rare warm, sunny day. So I was up on the roof of the garage, then about 20 feet up a couple of different trees and, well, let’s just say it was an interesting experience.

Those of you who are amateur radio operators will undoubtedly note that it is not exactly the ideal configuration for an OCFD. It’s way too low to the ground, the two legs are running in a rather tight ‘V’ configuration instead of running out straight, etc. It’s only about 12 feet off the ground and it really should be something like 30 – 40 feet up. But you work with what you have. I don’t have a tower, don’t have tall trees, and I don’t have the space to string up a 140 foot long antenna in what is supposed to be the “ideal” configuration.

And guess what? Despite all of that, the antenna works just fine and dandy, thank you very much. According to the good ole boys I sometimes listen to down on 75 meters pontificating about antennas and other things, this antenna shouldn’t work very well in this configuration. Only it does. Since I put it up I’ve had contacts in California, the Carolinas, well, all over the continental United States and Canada, and according to PSK Reporter I’ve been heard in Europe and Australia as well.

Would it work better if it were in the “ideal” configuration, up above 30 feet with the legs extended properly? Probably. Don’t care. You work with you got.

Looks like I got this one up in time because my vertical antenna is now doing weird things. The thing got whacked by a fairly good sized branch from one of the trees and I think it knocked something loose so I’m going to have to pull that thing down one of these days and check that out.

Laser engraver: The nice delivery driver who brings me goodies from time to time just dropped off the Laserpecker 2 the other day. I’ve been looking forward to getting my hands on this one after playing with the Laserpecker 1 for a few months. I have the LP2 up and running and it is very, very, very nice. It is much more powerful than the original, much, much faster, offers much higher resolution. The version I have here comes with the roller system in the box on the right. That allows it to engrave cylindrical objects like water bottles and the like. And most interestingly of all, the roller mechanism can be reversed and turned into a drive mechanism for the LP2 allowing it to travel along a board or tabletop or other smooth surface to make continuous long engravings. I haven’t set up the roller system yet and I’m looking forward to trying it.

And best of all, for me anyway, it is no longer tied to a stupid phone app to run it. You can still use a phone app, but there is actual real PC software that will control this thing. It looks like the PC software gives much better control over the engraver than the phone app did. Best of all I don’t have to fiddle around trying to get artwork I make in Photoshop imported into the stupid phone app. I can do everything right on the computer now.

Unfortunately the PC software has some serious problems with it. It’s riddled with bugs, odd quirks, difficulties in connecting the PC to the LP2 and other issues. Most of those can be worked around but frankly the PC software looks like it was never properly tested before being released.

The LP2 is most definitely not cheap. I can see a hobbyist spending $250 on the Laserpecker 1 to do the occasional engraving on an art project. It’s a fun little gadget that works pretty well and at that price you don’t need to use it a lot to justify the expense. The Laserpecker 2 package that you see here with the roller system will set you back $1,200. IMO this pushes it well outside of the hobbyist level product. In order to justify that kind of expense you need to have a serious application for something like this.

Anyway, look for a full review of the LP2 in the near future.

And that’s about it for this time. Now if only the weather would start to warm up…

Rabbits, Cans and Antennas

Screen Shot 2018-06-05 at 6.07.48 AMWhile we live in town, we live in an area with large house lots, many trees, lots of bushes and a lot of rather lush vegetation, so we have the curse of the gardener, rabbits. Last year the little buggers ate all of my red runner beans almost as soon as they sprouted. There are mornings when I get up and I’ll see a half dozen of them in our yard or in the neighbors’ yards grazing on whatever the four legged locusts can gobble down. They’re getting more and more brave, too, coming out by mid afternoon in some parts of town. One of my neighbors tried live trapping them but had no success.

IMG_0891So to keep the little four legged vacuum cleaners out of our veggies we resort to fencing and one of the things MrsGF and I did over the weekend was put one up to keep them out of our produce. We got new fencing this year to replace the nasty looking chicken wire we used previously. It’s only 2 feet tall, a dark green color to make it less intrusive looking, and it’s fairly easy to put up. Hopefully it will keep the little stinkers out of our just barely sprouting beans.

Now you probably see all those #10 sized cans in there and you may not know about this trick. This is something MrsGF introduced me to years ago. When you first put seedlings out into the garden it’s something of a shock for them. They’ve just come out of a damp, warm, cozy little greenhouse and now are stuck out in the cold, cruel world and have to fend for themselves. The cans help to give them some shelter from the elements and protect them from the previously mentioned rabbits. Just get some empty #10 cans, cut the bottoms out of them, and push them about an inch into the soil around the newly transplanted seedlings. The only thing you have to remember is that when you finally pull the cans out after the plants are established is to give the can a twist before lifting it up or it can pull up large clods of earth which can disturb the roots.

IMG_0894

There are big changes coming for this area back here shown above. Right now it’s largely just decorative except for the lettuce bed behind the big rock. The problem back here is this area is really low and is almost underwater in the early spring, which makes it hard to grow anything except grass. That’s why we put in the raised beds which are off to the right out of sight. MrsGF and I decided this whole area is going to get raised up, perhaps yet this year if we get the time. We’re going to get decorative retaining blocks like the ones currently surrounding the lettuce bed, pull out all of the plants we want to keep, and then make the whole thing into a single raised bed about a foot above the height of the lawn.

Antennas

Well, we’ll have to move the antenna parts you see off to the right before we can start anything back there. Hopefully that tower you see laying back there that has been going to be put up “real soon now” for about 5 years will get put up this year. Maybe. And the GAP Titan vertical antenna will replace the Comet vertical as soon as I can corner eldest son and guilt him into helping.

The antenna tower… I traded a deep cycle marine battery for that with one of the ARES guys. He needed a battery for the power system in the emcomm trailer, he had this tower laying around that he just took down, so we made a swap. The tower was supposed to go up at the end of the garage and be the support for various antennas, including one for broadcast TV so MrsGF can watch PBS in the evening. (The problem with digital TV versus the old analog is that with the old analog if you were in a fringe reception area, you still could see and hearĀ something. There would be static, yes, but you’d still get a watchable picture. If you’re in a fringe area with digital, you get nothing). Eldest son keeps claiming he’s going to help get it up the next time he gets over here.

Antennas are really my biggest problem when it comes to amateur radio. I play around with them, experiment, etc. but I haven’t come up with anything really any better than the off center fed dipole currently strung up from the garage to a couple of trees. It works reasonably well, but is way too low to the ground. And the biggest problem is that one leg of the dipole runs to a tree in the neighbor’s yard, and the neighbor is moving, so that means the antenna has to be moved too.

Like a lot of amateur radio operators, I’ve accumulated a lot of junk related to the hobby, including several different types of antennas. And despite claims from the manufacturers of many antennas, most of them don’t really work all that well. It’s basic physics, really. In order to be efficient, antennas for radio frequencies down in the shortwave (HF) portions of the amateur radio bands, like down in 80 or 40 meters, need to be pretty long. Your cell phone has a really, really tiny antenna, because it works with very, very high frequencies.

Antennas for the frequencies I work with areĀ huge. We’re talking 80, 90 feet long or longer. My OCFD, if laid out straight, would be 135 feet long.

So if it needs to be that long, how can that GAP Titan antenna laying out there be only 21 feet tall? Well, it cheats, basically. It uses various tricks to make itself work better than it really should at first glance. It looks simple, but it isn’t. It’s actually a very complicated piece of equipment with various radiators and stubs and, well, antenna stuff. It would take more space than I have here to try to explain it all.

What it boils down to is you can’t get something for nothing. You can’t fool physics. You can make smaller, shorter antennas, but you sacrifice efficiency when you do that. I wince when I see some of the ads for some of the antennas on the market because I know the claims being made for the are pretty much bogus.