Archive for the ‘antennas’ Category
Lunchtime QRP continues to be successful
My lunchtime QRP sessions continue to be a success with QSOs all over the world. SOTA stations, special event stations, DX stations and rag chews all have been making it into the log.
K4UPG FOBB 2013 Antenna on da Ground!
Grrrrrrrr! and then more Grrrrrrrr’s! FOBB 2013 was a gud one! Grrrrrr!
Anticipated rain and thunderstorms and was not disappointed. Accordingly, I took up my backpack and walked about 1/2 mile to set up under a small pavilion in our housing development’s lakeside park. So far, so good. Originally I planned to have an EFHW for 40m and another one for 20m. Upon unpacking, realized my 40m wire was in my other pack at home. SHUCKS. I had already put a shot over a 40′ high branch and pulled up a paracord to hook to the wire which was not available. Oh well… it happens even to the best of us, eh?
Grrrrr! So I tried to set up the 20m EFHW and after another great shot with my 1 1/2 oz sinker and pulling up a line realized the tree wasn’t going to give me a good shot as it was too close and not very high. Grrrrrrr=ed a bit more!
Rethinking mode kicked in and was glad I got out early so all the wasted time did not mess me up. Pulled out my handy 20 ft Jackite and a 17 ft crappie pole and decided to give up on a typical K4UPG “hang ‘em high” antenna and do a very Lazy L. I tried to orient it for a bit of slope towards 330 degrees which shoots from FL to Iowa and provides decent coverage of most of the US. Turned out that low antenna worked great but I think the band was pretty doggone decent for a change too.
So about 15 min before FOBB start time fired off a CQ and made a contact and shot the breeze for a bit to warm up. Nice QRP to QRP contact but not counted for contest. Just for grins. I did notice a few “early out of the blocks ops” were calling CQ BB about 10 min before the clock struck go! Grrrrrrrrr! Sync those watches gentlemen!
Contest Started:
First station heard was Cam out in California N6GA but no joy when I responded to his CQ as there was a mini-pileup on him. Grrrrr… Heard a few more 6′s during the day but no peep from Rem Bear or any others I recognized. I did end up with eight PB’s for the day though and a great TU and Grrrrr to my fellow PB’s: AF40 Chuck- PB 153 TN my last contact of the day (more later); Snowbird FL Bear Don K3RLL PB 187 in PA with his new KX3; Jeff K9JP PB 175 in MI was the loudest signal of the day and blew my ears out till I got the RF and AF turned down Grrrrr! didn’t recognize you as a PB… sri bout dat; N1EU Barry in NY PB 336 got a Grrrrr!; N3AAZ John in MD PB 276 sri 2 ya… missed a Grrrrr!; W1PNS Pete in MA PB 348 got a Grrrrrr!; W5ESE Scotty beam me up Bear PB 287 missed a Grrrr too; WA8REI a perennial PB contact for me gave me a PB 21 style Grrrrrrr! I was closing a contact and Blackjack Bear called me on the guy’s freq so kept it REAL short and sweet as I felt like if we tried to QSY there was too much traffic and we’d not make the connex. Sri Ken Bear was a messy QSO cuz of that. Missed hearing Larry W2LJ this time and listened fur some of you udder PB’s but no connex. Grrrrrr!
All in all worked 25 QSO’s in 17 states and all of them were BB’s! Lightning came up as I was finishing my QSO with AF4O and it was TOO CLOSE. Almost blew me out of my seat but I held onto the key and finished up. Sitting there holding the wire and I started singing, “Antenna on the ground, antenna on the ground, when da lightning is around get your antenna on da ground” to the tune of the famous “Pants on the Ground” song by “General” Larry Platt.
Thus ended a nice outing after 2 hrs and 45 minutes but I truly enjoyed this one. Great number of participants and bet I could have almost doubled the numbers if the lightning did not end the day. Was hearing a lot of new calls just prior to shutting down. At least I got to give the serious contesters some points this year. Maybe next year will be my turn fur sum extra Q’s ? Grrrrrrr!
72 from Orlando, Kelly K4UPG PB 173
Lighter, Easier to Pack, Telescoping Pole
I found, through KT5X, a supplier of Japanese made carbon fiber, telescoping fishing poles. It telescopes to 21 feet, weighs 7 oz. and collapses down to 25 inches. Brilliant. Now, these are a little pricey, from $75 -$120, but if you are carrying it for a few miles, the price amortizes nicely:-).
Sizzling hot!
Not the weather (for once) although, it’s still pretty warm. No, I meant 15 Meters at lunch time was sizzling hot!
Besides telling you who I worked, let me tell you about “the one that got away” a bit later. (As if I ever stood a chance!). First things first, though. I got to the car and set up the station. A quick scan of 17 Meters left me feeling – “meh”. 20 Meters was a little better, but not all that much to write home about, either. That’s when I got the inspiration to check out 15 Meters.
At 1614 UTC, I heard and worked a very loud OL2013CM from the Czech Republic. Later, when I looked OL2013CM up on QRZ, it turned out to be a very big deal for this Ham, considering my background. You see, OL2013CM is one of several Special Event Stations from the Czech Republic honoring the 1150th anniversary (Yes, the 1150th!) of the arrival of Saints Cyril and Methodius to that area.
Saints Cyril and Methodius were the two men responsible for bringing Catholicism to the Slavic nations. Today this area includes the following countries – Bulgaria, Croatia, Belarus, the Slovak Republic, the Czech Republic, Belarus, Russia, the Ukraine, Macedonia, Lituania and Latvia, Estonia, and yes, Poland – the land of my ancestors.
There is a big seminary in Orchard Lake, Michigan named after Saints Cyril and Methodius. Almost all the priests that were in the Polish ethnic parish that I attended while growing up, graduated from that seminary. For me, working OL2013CM held a lot of sentimental value, and was a big deal.
And as always, there’s a diploma that’s available for working stations associated with the Special Event. For the details, you can visit: http://award-cm.ok2kyd.cz/en/award-rules.html Now, time for a bit of trivia. Besides introducing Catholicism to that part of the world, this duo also developed the Glagolitic alphabet, which was used to transcribe the Gospels into the Slavonic languages. While that alphabet is no longer in use today – one of its descendant scripts is still very much in use today – the Cyrillic alphabet. Wonder where they got that name !!!
After working OL2013CM, I also worked 4O/UA3RF in Montenegro and HA8QZ in Hungary. Indeed,
15 Meters was open and very hot to Europe. Three solid QSOs to Europe in the span of minutes. Priceless!
But now for the one “that got away”. Down towards the bottom of the band (just above where CO8LY was calling CQ), I heard a very loud (extremely loud!) BY4IB/4. China! Holy cow, I never heard a station from China so loud. 599+ loud! Insanely, I thought I stood a chance. He was working split, and with the KX3’s Dual Watch feature, I was very handily able to figure out the split, in no time. I was determined to keep on throwing my call out until either:
1) I worked him
2) He faded away
3) I had to break down to go back inside to work.
Well, Door Number Two opened first, as he slowly faded away into oblivion. And I never made contact, despite my best efforts. But if I had, how cool would that have been? NJ to China on 5 Watts with a Buddistick! I’d still be doing the ecstatic dance (never mind the happy dance) if I had been able to pull that off!
72 de Larry W2LJ
QRP – When you care to send the very least!
Toasty!
It sure has been warm here since last Sunday. This morning I Tweeted that you know your in for a rough day when you wake up at 6:30 AM and the air conditioner has already turned itself on …… and we keep the AC set on the kind of high side here at the W2LJ household. We try to keep the house comfortable, but not like a meat locker. So when the cooling turns on, it’s already pretty warm in the house.
So when the weather is like this, what does a sensible QRPer do for lunch break? Does he stay inside the nice, cool office building, kick back and maybe read for a while while eating his sandwich?
Well, maybe that’s what a wise, sensible, pragmatic QRPer does, but none of those descriptions fit me, so I headed out to the parking lot to get the Buddistick on top of the Jeep and the KX3 on the air! When I got out there, I set out the thermometer that I brought along from home. I set it in a shady spot, out of the direct sun, and let it sit while I operated. The plan was to check it and snap a photo of it, after I broke the station down, but before I headed back inside.
My first band of choice was 17 Meters as it has been really good to me over the last months of lunchtime operating. However, there must have been some kind of device turned on in the Engineering Building at work, because I had terrible electronic pulse noise from 18.068 to about 18.083 MHz. The KX3’s noise blanker (which is the best noise blanker I have ever used) put only a slight dent in the noise. The incoming signal would have had to have been 599+ to overcome that racket. The funny thing is that right at 18.083 MHz, it was like someone turned off a light switch and the pulse noise quite literally vanished. The problem is that on 17 Meters, the majority of DX stations will be found on the lower portion of the band, so I decided to QSY.
On to 15 Meters! I didn’t hear a lot of signals on the band, so I decided (for whatever reason) to do something I hardly ever do. I went to the QRP watering hole of 21.060 MHz and actually called “CQ QRP” for a bit. Normally, the only time I do that is during a QRP Sprint or contest, but for some reason unbeknownst to me, I decided to try it today. And strangely enough, I got an answer. The answer came from Reiner DL5ZP. The QSO was a tough 2X QRP affair, as QSB was fierce, but we got in an exchange of the basics. Afterwards, I had to wonder if I was taken in by a “slim” or a “pirate” as they are better known. DL5ZP does not appear on QRZ.com. He does kind of halfway show up on QRZCQ and DX Summit and even Google, but by not coming up on QRZ.com, I have to wonder if this was legitimate, or what.
After the QSO with DL5ZP, I went to the 20 Meter QRP watering hole and did the same thing. This time I was answered by W7USA in Arizona, and we had a very brief QSO. Band conditions did not seem to be the best this early afternoon.
So after I put everything away, as far as the station goes, I went and fetched the thermometer from it’s shady spot. Here’s what it indicated:
About 96 or 97F (36C) with just under 50% humidity. Hot enough for me to almost burn my fingers on the magmount when I lifted it off the Jeep, but not hot enough to keep me inside.
Band conditions were much better tonight for the 20 Meter QRP Foxhunt. I managed to grab two furs tonight by working John K4BAI in Georgia and Jay KT5E in Colorado. But I have to admit that as soon as I bagged both pelts, I shut the station down and disconnected the antennas. The weather service is saying that this 6 day heat wave may break tomorrow afternoon with possible severe thunderstorms anytime from tomorrow afternoon into Saturday morning. I don’t need to be driving home tomorrow afternoon, in the middle of a bad boomer, only to be worrying that I forgot to disconnect my aerials.
By the way, it’s now 11:00 PM here. The sun has been down for about 2 1/2 hours, and it’s still 84F (29C). Those are probably going to be some pretty powerful thunderstorms to break the back of this hot spell.
72 de Larry W2LJ
QRP – When you care to send the very least!
Review: Array of Light (3rd Edition)
My friend Matt, KB9UWU, eggs me on to buy things. Sometimes I listen. Sometimes I don’t. But, eventually he wins me over and I’m usually happy with the purchase (e.g., K3 and Hex beam, although I built the Hex from scratch, which reminds me that I owe the blog a discussion of that). I like to think that I let Matt be the early adopter and then pick and choose based on his experience. He convinced me to buy a copy of N6BT’s book Array of Light. Here’s my review.
If there’s anybody that knows antennas in the amateur community, it’s Tom Schiller, N6BT, the founder of Force12 and now owner of N6BT Next Generation Antennas. He’s also a member of the very successful Team Vertical contest team, who have revolutionized DXpedition and contest expedition antenna systems by replacing trapped tri-band Yagis like the TH-3jr(s), TA-33jr, and A3S, with arrays of verticals located at the water line. Schiller’s work has been nothing short of revolutionary so I had high hopes for the book.
My copy, like every other copy, is signed by the author. It’s a good-quality laser print and has the same spiral binding as the Elecraft manuals. The book is a loosely-edited collection of articles and clippings that read pretty well in series. But, it’s bear to skim or go back to find specific things unless you’ve read the whole thing cover-to-cover a couple of times. But, that’s pretty easy to do because Tom is a good storyteller. My only other complaint is that there are a couple of places where I think Tom has drunk his own Kool-Aid regarding the efficiency of his antennas, especially “linear loading.” This is a topic that I need to revisit with a pencil and paper study at some point because there is a lot of misinformation floating around about traps, linear loading, and “multi-monoband” antennas. It’s not clear to me that anyone has sat down and really examined this in a methodical way. It was disappointing that he quoted numbers like “greater than 99% efficiency” without going into more detail about the efficiency of a full-size antenna versus the linear-loaded one, etc. Of course, this is difficult, but it’s something that always makes me a bit skeptical.
Array of Light is worth the price of admission for a couple of reasons—the first is the stories and the second is the antenna designs. I’m a big proponent of not reinventing the wheel on most of my homebrew projects and this book is sure to provide some proven designs to work with. Especially if you want a good discussion of practical antennas for DXpeditioning and contesting I think it’s a real winner.

















